|  | /* | 
|  | * Testsuite for eBPF verifier | 
|  | * | 
|  | * Copyright (c) 2014 PLUMgrid, http://plumgrid.com | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or | 
|  | * modify it under the terms of version 2 of the GNU General Public | 
|  | * License as published by the Free Software Foundation. | 
|  | */ | 
|  |  | 
|  | #include <endian.h> | 
|  | #include <asm/types.h> | 
|  | #include <linux/types.h> | 
|  | #include <stdint.h> | 
|  | #include <stdio.h> | 
|  | #include <stdlib.h> | 
|  | #include <unistd.h> | 
|  | #include <errno.h> | 
|  | #include <string.h> | 
|  | #include <stddef.h> | 
|  | #include <stdbool.h> | 
|  | #include <sched.h> | 
|  |  | 
|  | #include <sys/capability.h> | 
|  | #include <sys/resource.h> | 
|  |  | 
|  | #include <linux/unistd.h> | 
|  | #include <linux/filter.h> | 
|  | #include <linux/bpf_perf_event.h> | 
|  | #include <linux/bpf.h> | 
|  |  | 
|  | #include <bpf/bpf.h> | 
|  |  | 
|  | #ifdef HAVE_GENHDR | 
|  | # include "autoconf.h" | 
|  | #else | 
|  | # if defined(__i386) || defined(__x86_64) || defined(__s390x__) || defined(__aarch64__) | 
|  | #  define CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS 1 | 
|  | # endif | 
|  | #endif | 
|  |  | 
|  | #include "../../../include/linux/filter.h" | 
|  |  | 
|  | #ifndef ARRAY_SIZE | 
|  | # define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) | 
|  | #endif | 
|  |  | 
|  | #define MAX_INSNS	512 | 
|  | #define MAX_FIXUPS	8 | 
|  | #define MAX_NR_MAPS	4 | 
|  |  | 
|  | #define F_NEEDS_EFFICIENT_UNALIGNED_ACCESS	(1 << 0) | 
|  | #define F_LOAD_WITH_STRICT_ALIGNMENT		(1 << 1) | 
|  |  | 
|  | struct bpf_test { | 
|  | const char *descr; | 
|  | struct bpf_insn	insns[MAX_INSNS]; | 
|  | int fixup_map1[MAX_FIXUPS]; | 
|  | int fixup_map2[MAX_FIXUPS]; | 
|  | int fixup_prog[MAX_FIXUPS]; | 
|  | int fixup_map_in_map[MAX_FIXUPS]; | 
|  | const char *errstr; | 
|  | const char *errstr_unpriv; | 
|  | enum { | 
|  | UNDEF, | 
|  | ACCEPT, | 
|  | REJECT | 
|  | } result, result_unpriv; | 
|  | enum bpf_prog_type prog_type; | 
|  | uint8_t flags; | 
|  | }; | 
|  |  | 
|  | /* Note we want this to be 64 bit aligned so that the end of our array is | 
|  | * actually the end of the structure. | 
|  | */ | 
|  | #define MAX_ENTRIES 11 | 
|  |  | 
|  | struct test_val { | 
|  | unsigned int index; | 
|  | int foo[MAX_ENTRIES]; | 
|  | }; | 
|  |  | 
|  | static struct bpf_test tests[] = { | 
|  | { | 
|  | "add+sub+mul", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 1), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 3), | 
|  | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -1), | 
|  | BPF_ALU64_IMM(BPF_MUL, BPF_REG_1, 3), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unreachable", | 
|  | .insns = { | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "unreachable", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "unreachable2", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "unreachable", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "out of range jump", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "jump out of range", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "out of range jump2", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "jump out of range", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test1 ld_imm64", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | 
|  | BPF_LD_IMM64(BPF_REG_0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 1), | 
|  | BPF_LD_IMM64(BPF_REG_0, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid BPF_LD_IMM insn", | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test2 ld_imm64", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | 
|  | BPF_LD_IMM64(BPF_REG_0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 1), | 
|  | BPF_LD_IMM64(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid BPF_LD_IMM insn", | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test3 ld_imm64", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 0), | 
|  | BPF_LD_IMM64(BPF_REG_0, 1), | 
|  | BPF_LD_IMM64(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test4 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test5 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test6 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 0), | 
|  | BPF_RAW_INSN(0, 0, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "test7 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | 
|  | BPF_RAW_INSN(0, 0, 0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "test8 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 1, 1), | 
|  | BPF_RAW_INSN(0, 0, 0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "uses reserved fields", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test9 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | 
|  | BPF_RAW_INSN(0, 0, 0, 1, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test10 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | 
|  | BPF_RAW_INSN(0, BPF_REG_1, 0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test11 ld_imm64", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, 0, 0, 1), | 
|  | BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test12 ld_imm64", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), | 
|  | BPF_RAW_INSN(0, 0, 0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "not pointing to valid bpf_map", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "test13 ld_imm64", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_LD | BPF_IMM | BPF_DW, 0, BPF_REG_1, 0, 1), | 
|  | BPF_RAW_INSN(0, 0, BPF_REG_1, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_ld_imm64 insn", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "no bpf_exit", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_0, BPF_REG_2), | 
|  | }, | 
|  | .errstr = "jump out of range", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "loop (back-edge)", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "back-edge", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "loop2 (back-edge)", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -4), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "back-edge", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "conditional loop", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, -3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "back-edge", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "read uninitialized register", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R2 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "read invalid register", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_0, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R15 is invalid", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "program doesn't init R0 before exit", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R0 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "program doesn't init R0 before exit in all branches", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R0 !read_ok", | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "stack out of bounds", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, 8, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid call insn1", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL | BPF_X, 0, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "BPF_CALL uses reserved", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid call insn2", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 1, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "BPF_CALL uses reserved", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid function call", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, 1234567), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid func unknown#1234567", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "uninitialized stack1", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 2 }, | 
|  | .errstr = "invalid indirect read from stack", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "uninitialized stack2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid read from stack", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid fp arithmetic", | 
|  | /* If this gets ever changed, make sure JITs can deal with it. */ | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R1 subtraction from stack pointer", | 
|  | .result_unpriv = REJECT, | 
|  | .errstr = "R1 invalid mem access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "non-invalid fp arithmetic", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "invalid argument register", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_cgroup_classid), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_cgroup_classid), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R1 !read_ok", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "non-invalid argument register", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_cgroup_classid), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_1, BPF_REG_6), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_cgroup_classid), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "check valid spill/fill", | 
|  | .insns = { | 
|  | /* spill R1(ctx) into stack */ | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | /* fill it back into R2 */ | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | 
|  | /* should be able to access R0 = *(R2 + 8) */ | 
|  | /* BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 8), */ | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "check valid spill/fill, skb mark", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check corrupted spill/fill", | 
|  | .insns = { | 
|  | /* spill R1(ctx) into stack */ | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | /* mess up with R1 pointer on stack */ | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_10, -7, 0x23), | 
|  | /* fill back into R0 should fail */ | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "attempt to corrupt spilled", | 
|  | .errstr = "corrupted spill", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid src register in STX", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_10, -1, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R15 is invalid", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid dst register in STX", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_B, 14, BPF_REG_10, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R14 is invalid", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid dst register in ST", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_B, 14, -1, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R14 is invalid", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid src register in LDX", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, 12, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R12 is invalid", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid dst register in LDX", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_B, 11, BPF_REG_1, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R11 is invalid", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "junk insn", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(0, 0, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid BPF_LD_IMM", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "junk insn2", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(1, 0, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "BPF_LDX uses reserved fields", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "junk insn3", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(-1, 0, 0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid BPF_ALU opcode f0", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "junk insn4", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(-1, -1, -1, -1, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid BPF_ALU opcode f0", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "junk insn5", | 
|  | .insns = { | 
|  | BPF_RAW_INSN(0x7f, -1, -1, -1, -1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "BPF_ALU uses reserved fields", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "misaligned read from stack", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, -4), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned stack access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "invalid map_fd for function call", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_delete_elem), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "fd 0 is not pointing to valid bpf_map", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "don't check return value before access", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 invalid mem access 'map_value_or_null'", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "access memory with incorrect alignment", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 4, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "misaligned value access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "sometimes access memory with incorrect alignment", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 invalid mem access", | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "jump test 1", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -8), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 5), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "jump test 2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 2), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 14), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 2), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 2), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 8), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 2), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 5), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 2), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "jump test 3", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -8, 0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 19), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 1, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -16, 0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 15), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 2, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -32, 0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -32), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 11), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 3, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -40, 0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -40), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 7), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 4, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -48, 0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -48), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 5, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, -56, 0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -56), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_delete_elem), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 24 }, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "jump test 4", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 3), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 4), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "jump test 5", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_3, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 2), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "access skb fields ok", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, len)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, pkt_type)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, queue_mapping)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, protocol)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, vlan_present)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, vlan_tci)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, napi_id)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "access skb fields bad1", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, -4), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "access skb fields bad2", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, pkt_type)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .errstr = "different pointers", | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "access skb fields bad3", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 2), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, pkt_type)), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -12), | 
|  | }, | 
|  | .fixup_map1 = { 6 }, | 
|  | .errstr = "different pointers", | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "access skb fields bad4", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, 0, 3), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, len)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -13), | 
|  | }, | 
|  | .fixup_map1 = { 7 }, | 
|  | .errstr = "different pointers", | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff family", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, family)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff remote_ip4", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip4)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff local_ip4", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip4)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff remote_ip6", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip6)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff local_ip6", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip6)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff remote_port", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_port)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid access __sk_buff remote_port", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_port)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff family", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, family)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff remote_ip4", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip4)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff local_ip4", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip4)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff remote_ip6", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip6[0])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip6[1])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip6[2])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_ip6[3])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff local_ip6", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip6[0])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip6[1])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip6[2])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_ip6[3])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff remote_port", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, remote_port)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "valid access __sk_buff remote_port", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, local_port)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "invalid access of tc_classid for SK_SKB", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_classid)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | .errstr = "invalid bpf_context access", | 
|  | }, | 
|  | { | 
|  | "check skb->mark is writeable by SK_SKB", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "check skb->tc_index is writeable by SK_SKB", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, tc_index)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "check skb->priority is writeable by SK_SKB", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, priority)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "direct packet read for SK_SKB", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "direct packet write for SK_SKB", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "overlapping checks for direct packet access SK_SKB", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SK_SKB, | 
|  | }, | 
|  | { | 
|  | "check skb->mark is not writeable by sockets", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .errstr_unpriv = "R1 leaks addr", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check skb->tc_index is not writeable by sockets", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_index)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .errstr_unpriv = "R1 leaks addr", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check cb access: byte", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0]) + 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0]) + 2), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0]) + 3), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1]) + 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1]) + 2), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1]) + 3), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2]) + 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2]) + 2), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2]) + 3), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3]) + 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3]) + 2), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3]) + 3), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 2), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0]) + 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0]) + 2), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0]) + 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1]) + 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1]) + 2), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1]) + 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2]) + 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2]) + 2), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2]) + 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3]) + 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3]) + 2), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3]) + 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4]) + 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4]) + 2), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4]) + 3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "__sk_buff->hash, offset 0, byte store not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, hash)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "__sk_buff->tc_index, offset 3, byte store not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, tc_index) + 3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check skb->hash byte load permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash) + 3), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check skb->hash byte load not permitted 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash) + 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check skb->hash byte load not permitted 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash) + 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check skb->hash byte load not permitted 3", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash) + 3), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash)), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check cb access: byte, wrong type", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | 
|  | }, | 
|  | { | 
|  | "check cb access: half", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0]) + 2), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1]) + 2), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2]) + 2), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3]) + 2), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 2), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0]) + 2), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1]) + 2), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2]) + 2), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3]) + 2), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4]) + 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check cb access: half, unaligned", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0]) + 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check __sk_buff->hash, offset 0, half store not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, hash)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check __sk_buff->tc_index, offset 2, half store not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, tc_index) + 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check skb->hash half load permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash) + 2), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check skb->hash half load not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash) + 2), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, hash)), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check cb access: half, wrong type", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | 
|  | }, | 
|  | { | 
|  | "check cb access: word", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check cb access: word, unaligned 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0]) + 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check cb access: word, unaligned 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check cb access: word, unaligned 3", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check cb access: word, unaligned 4", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4]) + 3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check cb access: double", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check cb access: double, unaligned 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[1])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check cb access: double, unaligned 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "misaligned context access", | 
|  | .result = REJECT, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "check cb access: double, oob 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check cb access: double, oob 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check __sk_buff->ifindex dw store not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, ifindex)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check __sk_buff->ifindex dw load not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, ifindex)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "check cb access: double, wrong type", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_CGROUP_SOCK, | 
|  | }, | 
|  | { | 
|  | "check out of range skb->cb access", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0]) + 256), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .errstr_unpriv = "", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_ACT, | 
|  | }, | 
|  | { | 
|  | "write skb fields from socket prog", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[4])), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_index)), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_0, 0, 1), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[2])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .errstr_unpriv = "R1 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "write skb fields from tc_cls_act prog", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_index)), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, tc_index)), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[3])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "PTR_TO_STACK store/load", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "PTR_TO_STACK store/load - bad alignment on off", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_1, 2, 0xfaceb00c), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "misaligned stack access off (0x0; 0x0)+-8+2 size 8", | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "PTR_TO_STACK store/load - bad alignment on reg", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -10), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "misaligned stack access off (0x0; 0x0)+-10+8 size 8", | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "PTR_TO_STACK store/load - out of bounds low", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -80000), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid stack off=-79992 size=8", | 
|  | }, | 
|  | { | 
|  | "PTR_TO_STACK store/load - out of bounds high", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_1, 8, 0xfaceb00c), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid stack off=0 size=8", | 
|  | }, | 
|  | { | 
|  | "unpriv: return pointer", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_10), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | }, | 
|  | { | 
|  | "unpriv: add const to pointer", | 
|  | .insns = { | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: add pointer to pointer", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .errstr_unpriv = "R1 pointer += pointer", | 
|  | }, | 
|  | { | 
|  | "unpriv: neg pointer", | 
|  | .insns = { | 
|  | BPF_ALU64_IMM(BPF_NEG, BPF_REG_1, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .errstr_unpriv = "R1 pointer arithmetic", | 
|  | }, | 
|  | { | 
|  | "unpriv: cmp pointer with const", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | }, | 
|  | { | 
|  | "unpriv: cmp pointer with pointer", | 
|  | .insns = { | 
|  | BPF_JMP_REG(BPF_JEQ, BPF_REG_1, BPF_REG_10, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .errstr_unpriv = "R10 pointer comparison", | 
|  | }, | 
|  | { | 
|  | "unpriv: check that printk is disallowed", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_trace_printk), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "unknown func bpf_trace_printk#6", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: pass pointer to helper function", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_update_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr_unpriv = "R4 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: indirectly pass pointer on stack to helper function", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "invalid indirect read from stack off -8+0 size 8", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "unpriv: mangle pointer on stack 1", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | 
|  | BPF_ST_MEM(BPF_W, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "attempt to corrupt spilled", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: mangle pointer on stack 2", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_10, -1, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "attempt to corrupt spilled", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: read pointer from stack in small chunks", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_10, -8), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_10, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid size", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "unpriv: write pointer into ctx", | 
|  | .insns = { | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R1 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill of ctx", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill of ctx 2", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_hash_recalc), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill of ctx 3", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_hash_recalc), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 type=fp expected=ctx", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill of ctx 4", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_RAW_INSN(BPF_STX | BPF_XADD | BPF_DW, BPF_REG_10, | 
|  | BPF_REG_0, -8, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_get_hash_recalc), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 type=inv expected=ctx", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill of different pointers stx", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_3, 42), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | 
|  | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_1, BPF_REG_3, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "same insn cannot be used with different pointers", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill of different pointers ldx", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 3), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, | 
|  | -(__s32)offsetof(struct bpf_perf_event_data, | 
|  | sample_period) - 8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_2, 0), | 
|  | BPF_JMP_IMM(BPF_JNE, BPF_REG_1, 0, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_6, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, | 
|  | sample_period)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "same insn cannot be used with different pointers", | 
|  | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | 
|  | }, | 
|  | { | 
|  | "unpriv: write pointer into map elem value", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: partial copy of pointer", | 
|  | .insns = { | 
|  | BPF_MOV32_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R10 partial copy", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: pass pointer to tail_call", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_1), | 
|  | BPF_LD_MAP_FD(BPF_REG_2, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_tail_call), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_prog = { 1 }, | 
|  | .errstr_unpriv = "R3 leaks addr into helper", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: cmp map pointer with zero", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 1 }, | 
|  | .errstr_unpriv = "R1 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: write into frame pointer", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_10, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "frame pointer is read only", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "unpriv: spill/fill frame pointer", | 
|  | .insns = { | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_10, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_10, BPF_REG_6, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "frame pointer is read only", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "unpriv: cmp of frame pointer", | 
|  | .insns = { | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_10, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R10 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: adding of fp", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, -8), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "unpriv: cmp of stack pointer", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_2, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R2 pointer comparison", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "stack pointer arithmetic", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 4), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_MOV64_REG(BPF_REG_7, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, -10), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_1), | 
|  | BPF_ST_MEM(0, BPF_REG_2, 4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | 
|  | BPF_ST_MEM(0, BPF_REG_2, 4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "raw_stack: no skb_load_bytes", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | /* Call to skb_load_bytes() omitted. */ | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid read from stack off -8+0 size 8", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, negative len", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, -8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R4 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, negative len 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, ~0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R4 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, zero len", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid stack type R3", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, no init", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, init", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_6, 0, 0xcafe), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, spilled regs around bounds", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6,  8), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | 
|  | offsetof(struct __sk_buff, priority)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, spilled regs corruption", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R0 invalid mem access 'inv'", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, spilled regs corruption 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6,  8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6,  0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | 
|  | offsetof(struct __sk_buff, priority)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_3, | 
|  | offsetof(struct __sk_buff, pkt_type)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R3 invalid mem access 'inv'", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, spilled regs + data", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_6, BPF_REG_1,  8), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6,  8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_6,  0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_2, | 
|  | offsetof(struct __sk_buff, priority)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, invalid access 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -513), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid stack type R3 off=-513 access_size=8", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, invalid access 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid stack type R3 off=-1 access_size=8", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, invalid access 3", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 0xffffffff), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R4 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, invalid access 4", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -1), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, invalid access 5", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0x7fffffff), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R4 unbounded memory access, use 'var &= const' or 'if (var < const)'", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, invalid access 6", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid stack type R3 off=-512 access_size=0", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "raw_stack: skb_load_bytes, large access", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_ALU64_REG(BPF_MOV, BPF_REG_6, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, -512), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 512), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test1", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_4, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 14), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_4, 15), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_3, 7), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_4, BPF_REG_3, 12), | 
|  | BPF_ALU64_IMM(BPF_MUL, BPF_REG_4, 14), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_4), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_1), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_2, 49), | 
|  | BPF_ALU64_IMM(BPF_RSH, BPF_REG_2, 49), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_3, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_3), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 8), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_3, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test3", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid bpf_context access off=76", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SOCKET_FILTER, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test4 (write)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test5 (pkt_end >= reg, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test6 (pkt_end >= reg, bad access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid access to packet", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test7 (pkt_end >= reg, both accesses)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid access to packet", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test8 (double test, variant 1)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 4), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test9 (double test, variant 2)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_3, BPF_REG_0, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test10 (write invalid)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid access to packet", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test11 (shift, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 144), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | 
|  | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 3), | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test12 (and, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 144), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test13 (branches, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 13), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_4, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 14), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 24), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_3), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 23), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_5, 15), | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test14 (pkt_ptr += 0, CONST_IMM, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 22), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 7), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 12), | 
|  | BPF_ALU64_IMM(BPF_RSH, BPF_REG_5, 4), | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_6, BPF_REG_5), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test15 (spill with xadd)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 4096), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_4, BPF_REG_2, 0), | 
|  | BPF_STX_XADD(BPF_DW, BPF_REG_4, BPF_REG_5, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_4, 0), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_2, BPF_REG_5, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R2 invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test16 (arith on data_end)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 16), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid access to packet", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test17 (pruning, alignment)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 14), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_7, 1, 4), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, -4), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 1), | 
|  | BPF_JMP_A(-6), | 
|  | }, | 
|  | .errstr = "misaligned packet access off 2+(0x0; 0x0)+15+-4 size 4", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | .flags = F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test18 (imm += pkt_ptr, 1)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 8), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test19 (imm += pkt_ptr, 2)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 3), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_4, BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test20 (x += pkt_ptr, 1)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0x7fff), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test21 (x += pkt_ptr, 2)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 9), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_4, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_4, 0x7fff), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 0x7fff - 1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test22 (x += pkt_ptr, 3)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_3, -16), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_10, -16), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 11), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0xffffffff), | 
|  | BPF_STX_XADD(BPF_DW, BPF_REG_10, BPF_REG_4, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -8), | 
|  | BPF_ALU64_IMM(BPF_RSH, BPF_REG_4, 49), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 2), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 1), | 
|  | BPF_STX_MEM(BPF_H, BPF_REG_4, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test23 (x += pkt_ptr, 4)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xffff), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 31), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0xffff - 1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet, off=0 size=8, R5(id=1,off=0,r=0)", | 
|  | }, | 
|  | { | 
|  | "direct packet access: test24 (x += pkt_ptr, 5)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0xffffffff), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_10, -8), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 0xff), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 64), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_2), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 0x7fff - 1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_5, BPF_REG_0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test25 (marking on <, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -4), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test26 (marking on <, bad access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JLT, BPF_REG_0, BPF_REG_3, 3), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -3), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test27 (marking on <=, good access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "direct packet access: test28 (marking on <=, bad access)", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JLE, BPF_REG_3, BPF_REG_0, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 1), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -4), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test1, valid packet_ptr range", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_update_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 5 }, | 
|  | .result_unpriv = ACCEPT, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_XDP, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test2, unchecked packet_ptr", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data)), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 1 }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_XDP, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test3, variable add", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 11 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_XDP, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test4, packet_ptr with bad range", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 7 }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_XDP, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test5, packet_ptr with too short range", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct xdp_md, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 6 }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_XDP, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test6, cls valid packet_ptr range", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 5), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_2), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_update_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 5 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test7, cls unchecked packet_ptr", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 1 }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test8, cls variable add", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 10), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_5, BPF_REG_2, 0), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_4, BPF_REG_5), | 
|  | BPF_MOV64_REG(BPF_REG_5, BPF_REG_4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_5, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_5, BPF_REG_3, 4), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_4), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 11 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test9, cls packet_ptr with bad range", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 4), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 7 }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test10, cls packet_ptr with too short range", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_3, 3), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 6 }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test11, cls unsuitable helper 1", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_3, BPF_REG_7, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 42), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_store_bytes), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "helper access to the packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test12, cls unsuitable helper 2", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_6, BPF_REG_7, 3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 4), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "helper access to the packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test13, cls helper ok", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test14, cls helper ok sub", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test15, cls helper fail sub", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_ALU64_IMM(BPF_SUB, BPF_REG_1, 12), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test16, cls helper fail range 1", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test17, cls helper fail range 2", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -9), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R2 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test18, cls helper fail range 3", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_2, ~0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R2 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test19, cls helper fail range zero", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test20, pkt end as input", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_7), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 type=pkt_end expected=fp", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to packet: test21, wrong reg", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_6, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_7, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_6, 1), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_6), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 7), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_7, 6), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_csum_diff), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid access to packet", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "valid map access into an array with a constant", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "valid map access into an array with a register", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_1, 4), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "valid map access into an array with a variable", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 3), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "valid map access into an array with a signed variable", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 0xffffffff, 1), | 
|  | BPF_MOV32_IMM(BPF_REG_1, 0), | 
|  | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | 
|  | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | 
|  | BPF_MOV32_IMM(BPF_REG_1, 0), | 
|  | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid map access into an array with a constant", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, (MAX_ENTRIES + 1) << 2, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=48 size=8", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "invalid map access into an array with a register", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_1, MAX_ENTRIES + 1), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R0 min value is outside of the array range", | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid map access into an array with a variable", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R0 unbounded memory access, make sure to bounds check any array access into a map", | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid map access into an array with no floor check", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | 
|  | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | 
|  | BPF_MOV32_IMM(BPF_REG_1, 0), | 
|  | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .errstr = "R0 unbounded memory access", | 
|  | .result_unpriv = REJECT, | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid map access into an array with a invalid max check", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES + 1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 1), | 
|  | BPF_MOV32_IMM(BPF_REG_1, 0), | 
|  | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .errstr = "invalid access to map value, value_size=48 off=44 size=8", | 
|  | .result_unpriv = REJECT, | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid map access into an array with a invalid max check", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | 
|  | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3, 11 }, | 
|  | .errstr_unpriv = "R0 pointer += pointer", | 
|  | .errstr = "R0 invalid mem access 'inv'", | 
|  | .result_unpriv = REJECT, | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "multiple registers share map_lookup_elem result", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS | 
|  | }, | 
|  | { | 
|  | "alu ops on ptr_to_map_value_or_null, 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, -2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .errstr = "R4 invalid mem access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS | 
|  | }, | 
|  | { | 
|  | "alu ops on ptr_to_map_value_or_null, 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_4, -1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .errstr = "R4 invalid mem access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS | 
|  | }, | 
|  | { | 
|  | "alu ops on ptr_to_map_value_or_null, 3", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_4, 1), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .errstr = "R4 invalid mem access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS | 
|  | }, | 
|  | { | 
|  | "invalid memory access with multiple map_lookup_elem calls", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | 
|  | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .result = REJECT, | 
|  | .errstr = "R4 !read_ok", | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS | 
|  | }, | 
|  | { | 
|  | "valid indirect map_lookup_elem access with 2nd lookup in branch", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 10), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_1, -8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | 
|  | BPF_MOV64_REG(BPF_REG_7, BPF_REG_2), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 10), | 
|  | BPF_JMP_IMM(BPF_JNE, BPF_REG_2, 0, 3), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_8), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_7), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_4, BPF_REG_0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_4, 0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS | 
|  | }, | 
|  | { | 
|  | "invalid map access from else condition", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES-1, 1), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 1), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R0 unbounded memory access", | 
|  | .result = REJECT, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result_unpriv = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "constant register |= constant should keep constant type", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 34), | 
|  | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 13), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "constant register |= constant should not bypass stack boundary checks", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 34), | 
|  | BPF_ALU64_IMM(BPF_OR, BPF_REG_2, 24), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-48 access_size=58", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "constant register |= constant register should keep constant type", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 34), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 13), | 
|  | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "constant register |= constant register should not bypass stack boundary checks", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -48), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 34), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 24), | 
|  | BPF_ALU64_REG(BPF_OR, BPF_REG_2, BPF_REG_4), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-48 access_size=58", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "invalid direct packet write for LWT_IN", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "cannot write into packet", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_IN, | 
|  | }, | 
|  | { | 
|  | "invalid direct packet write for LWT_OUT", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "cannot write into packet", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_OUT, | 
|  | }, | 
|  | { | 
|  | "direct packet write for LWT_XMIT", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_STX_MEM(BPF_B, BPF_REG_2, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | 
|  | }, | 
|  | { | 
|  | "direct packet read for LWT_IN", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_IN, | 
|  | }, | 
|  | { | 
|  | "direct packet read for LWT_OUT", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_OUT, | 
|  | }, | 
|  | { | 
|  | "direct packet read for LWT_XMIT", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | 
|  | }, | 
|  | { | 
|  | "overlapping checks for direct packet access", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data_end)), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 8), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_0, BPF_REG_3, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 6), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_3, 1), | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_2, 6), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_XMIT, | 
|  | }, | 
|  | { | 
|  | "invalid access of tc_classid for LWT_IN", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_classid)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid bpf_context access", | 
|  | }, | 
|  | { | 
|  | "invalid access of tc_classid for LWT_OUT", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_classid)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid bpf_context access", | 
|  | }, | 
|  | { | 
|  | "invalid access of tc_classid for LWT_XMIT", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_classid)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid bpf_context access", | 
|  | }, | 
|  | { | 
|  | "leak pointer into ctx 1", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_LD_MAP_FD(BPF_REG_2, 0), | 
|  | BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_2, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 2 }, | 
|  | .errstr_unpriv = "R2 leaks addr into mem", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "leak pointer into ctx 2", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_STX_XADD(BPF_DW, BPF_REG_1, BPF_REG_10, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr_unpriv = "R10 leaks addr into mem", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "leak pointer into ctx 3", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_2, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, | 
|  | offsetof(struct __sk_buff, cb[0])), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 1 }, | 
|  | .errstr_unpriv = "R2 leaks addr into ctx", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "leak pointer into map val", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 3), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_3, 0), | 
|  | BPF_STX_XADD(BPF_DW, BPF_REG_0, BPF_REG_6, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .errstr_unpriv = "R6 leaks addr into mem", | 
|  | .result_unpriv = REJECT, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: full range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: partial range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: empty range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=0 size=0", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: out-of-bound range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val) + 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=0 size=56", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: negative range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R2 min value is negative", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const imm): full range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_2, | 
|  | sizeof(struct test_val) - | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const imm): partial range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const imm): empty range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=4 size=0", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const imm): out-of-bound range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_2, | 
|  | sizeof(struct test_val) - | 
|  | offsetof(struct test_val, foo) + 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const imm): negative range (> adjustment)", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R2 min value is negative", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const imm): negative range (< adjustment)", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R2 min value is negative", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const reg): full range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, | 
|  | sizeof(struct test_val) - | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const reg): partial range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const reg): empty range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R1 min value is outside of the array range", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const reg): out-of-bound range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, | 
|  | sizeof(struct test_val) - | 
|  | offsetof(struct test_val, foo) + 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=4 size=52", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const reg): negative range (> adjustment)", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R2 min value is negative", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via const reg): negative range (< adjustment)", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R2 min value is negative", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via variable): full range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | 
|  | offsetof(struct test_val, foo), 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, | 
|  | sizeof(struct test_val) - | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via variable): partial range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | 
|  | offsetof(struct test_val, foo), 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via variable): empty range", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | 
|  | offsetof(struct test_val, foo), 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R1 min value is outside of the array range", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via variable): no max check", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R1 unbounded memory access", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to adjusted map (via variable): wrong max check", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, | 
|  | offsetof(struct test_val, foo), 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_MOV64_IMM(BPF_REG_2, | 
|  | sizeof(struct test_val) - | 
|  | offsetof(struct test_val, foo) + 1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=4 size=45", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using <, good access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using <, bad access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JLT, BPF_REG_3, 32, 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 unbounded memory access", | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using <=, good access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using <=, bad access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JLE, BPF_REG_3, 32, 4), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 unbounded memory access", | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using s<, good access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 0, -3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using s<, good access 2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using s<, bad access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSLT, BPF_REG_3, -3, -3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using s<=, good access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 0, -3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using s<=, good access 2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to map: bounds check using s<=, bad access", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, 32, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSLE, BPF_REG_3, -3, -3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_1, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = REJECT, | 
|  | .errstr = "R1 min value is negative", | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "map element value is preserved across register spilling", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value or null is marked on register spilling", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -152), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value store of cleared call register", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 1), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R1 !read_ok", | 
|  | .errstr = "R1 !read_ok", | 
|  | .result = REJECT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value with unaligned store", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 17), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 2, 43), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, -2, 44), | 
|  | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 32), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_8, 2, 33), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_8, -2, 34), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_8, 5), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_8, 0, 22), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_8, 4, 23), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_8, -7, 24), | 
|  | BPF_MOV64_REG(BPF_REG_7, BPF_REG_8), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_7, 3), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_7, 0, 22), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_7, 4, 23), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_7, -4, 24), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "map element value with unaligned load", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_1, MAX_ENTRIES, 9), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 3), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 2), | 
|  | BPF_MOV64_REG(BPF_REG_8, BPF_REG_0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_8, 2), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 5), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_7, BPF_REG_0, 4), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "map element value illegal alu op, 1", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_0, 8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 bitwise operator &= on pointer", | 
|  | .errstr = "invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value illegal alu op, 2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_ALU32_IMM(BPF_ADD, BPF_REG_0, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 32-bit pointer arithmetic prohibited", | 
|  | .errstr = "invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value illegal alu op, 3", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_ALU64_IMM(BPF_DIV, BPF_REG_0, 42), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 pointer arithmetic with /= operator", | 
|  | .errstr = "invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value illegal alu op, 4", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 2), | 
|  | BPF_ENDIAN(BPF_FROM_BE, BPF_REG_0, 64), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 pointer arithmetic prohibited", | 
|  | .errstr = "invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value illegal alu op, 5", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 4096), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_0, 0), | 
|  | BPF_STX_XADD(BPF_DW, BPF_REG_2, BPF_REG_3, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 22), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R0 invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "map element value is preserved across register spilling", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, 42), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -184), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_3, BPF_REG_1, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_3, 0, 42), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .result = ACCEPT, | 
|  | .result_unpriv = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, bitwise AND + JMP, correct bounds", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, bitwise AND, zero included", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-64 access_size=0", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, bitwise AND + JMP, wrong max", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 65), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-64 access_size=65", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP, correct bounds", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP (signed), correct bounds", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP, bounds + offset", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 5), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 3), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-64 access_size=65", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP, wrong max", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 65, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-64 access_size=65", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP, no max check", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | /* because max wasn't checked, signed min is negative */ | 
|  | .errstr = "R2 min value is negative, either use unsigned or 'var &= const'", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP, no min check", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_2, 64, 3), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-64 access_size=0", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: stack, JMP (signed), no min check", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_1, -128), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, 64, 3), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R2 min value is negative", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: map, JMP, correct bounds", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | 
|  | sizeof(struct test_val), 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: map, JMP, wrong max", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | 
|  | sizeof(struct test_val) + 1, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "invalid access to map value, value_size=48 off=0 size=49", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: map adjusted, JMP, correct bounds", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | 
|  | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | 
|  | sizeof(struct test_val) - 20, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: map adjusted, JMP, wrong max", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_2, 0, 0), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 11), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 20), | 
|  | BPF_MOV64_IMM(BPF_REG_2, sizeof(struct test_val)), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_2, | 
|  | sizeof(struct test_val) - 19, 4), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_JMP_REG(BPF_JSGE, BPF_REG_4, BPF_REG_2, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R1 min value is outside of the array range", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: size = 0 allowed on NULL", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: size > 0 not allowed on NULL", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 64), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R1 type=inv expected=fp", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: size = 0 not allowed on != NULL", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_1, BPF_REG_2, 0), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 8), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_csum_diff), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid stack type R1 off=-8 access_size=0", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_SCHED_CLS, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: 8 bytes leak", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_2, -128), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_2, BPF_REG_10, -128), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 63), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "invalid indirect read from stack off -64+32 size 64", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "helper access to variable memory: 8 bytes no leak (init memory)", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_10), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -64), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -56), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -48), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -40), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -32), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -24), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -16), | 
|  | BPF_STX_MEM(BPF_DW, BPF_REG_10, BPF_REG_0, -8), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, -64), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 32), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, 32), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_EMIT_CALL(BPF_FUNC_probe_read), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_TRACEPOINT, | 
|  | }, | 
|  | { | 
|  | "invalid and of negative number", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_1, -4), | 
|  | BPF_ALU64_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R0 max value is outside of the array range", | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid range check", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 12), | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_9, 1), | 
|  | BPF_ALU32_IMM(BPF_MOD, BPF_REG_1, 2), | 
|  | BPF_ALU32_IMM(BPF_ADD, BPF_REG_1, 1), | 
|  | BPF_ALU32_REG(BPF_AND, BPF_REG_9, BPF_REG_1), | 
|  | BPF_ALU32_IMM(BPF_ADD, BPF_REG_9, 1), | 
|  | BPF_ALU32_IMM(BPF_RSH, BPF_REG_9, 1), | 
|  | BPF_MOV32_IMM(BPF_REG_3, 1), | 
|  | BPF_ALU32_REG(BPF_SUB, BPF_REG_3, BPF_REG_9), | 
|  | BPF_ALU32_IMM(BPF_MUL, BPF_REG_3, 0x10000000), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_3), | 
|  | BPF_STX_MEM(BPF_W, BPF_REG_0, BPF_REG_3, 0), | 
|  | BPF_MOV64_REG(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr = "R0 max value is outside of the array range", | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "map in map access", | 
|  | .insns = { | 
|  | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 5), | 
|  | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map_in_map = { 3 }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "invalid inner map pointer", | 
|  | .insns = { | 
|  | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_1, 8), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map_in_map = { 3 }, | 
|  | .errstr = "R1 type=inv expected=map_ptr", | 
|  | .errstr_unpriv = "R1 pointer arithmetic on CONST_PTR_TO_MAP prohibited", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "forgot null checking on the inner map pointer", | 
|  | .insns = { | 
|  | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_ST_MEM(0, BPF_REG_10, -4, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -4), | 
|  | BPF_MOV64_REG(BPF_REG_1, BPF_REG_0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_MOV64_REG(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map_in_map = { 3 }, | 
|  | .errstr = "R1 type=map_value_or_null expected=map_ptr", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_abs: check calling conv, r1", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_1, 0), | 
|  | BPF_LD_ABS(BPF_W, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R1 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_abs: check calling conv, r2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_LD_ABS(BPF_W, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R2 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_abs: check calling conv, r3", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 0), | 
|  | BPF_LD_ABS(BPF_W, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R3 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_abs: check calling conv, r4", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 0), | 
|  | BPF_LD_ABS(BPF_W, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R4 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_abs: check calling conv, r5", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_LD_ABS(BPF_W, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R5 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_abs: check calling conv, r7", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_7, 0), | 
|  | BPF_LD_ABS(BPF_W, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "ld_ind: check calling conv, r1", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_1, 1), | 
|  | BPF_LD_IND(BPF_W, BPF_REG_1, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_1), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R1 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_ind: check calling conv, r2", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 1), | 
|  | BPF_LD_IND(BPF_W, BPF_REG_2, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_2), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R2 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_ind: check calling conv, r3", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_3, 1), | 
|  | BPF_LD_IND(BPF_W, BPF_REG_3, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_3), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R3 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_ind: check calling conv, r4", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_4, 1), | 
|  | BPF_LD_IND(BPF_W, BPF_REG_4, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_4), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R4 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_ind: check calling conv, r5", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 1), | 
|  | BPF_LD_IND(BPF_W, BPF_REG_5, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_5), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R5 !read_ok", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "ld_ind: check calling conv, r7", | 
|  | .insns = { | 
|  | BPF_MOV64_REG(BPF_REG_6, BPF_REG_1), | 
|  | BPF_MOV64_IMM(BPF_REG_7, 1), | 
|  | BPF_LD_IND(BPF_W, BPF_REG_7, -0x200000), | 
|  | BPF_MOV64_REG(BPF_REG_0, BPF_REG_7), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "check bpf_perf_event_data->sample_period byte load permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period) + 7), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | 
|  | }, | 
|  | { | 
|  | "check bpf_perf_event_data->sample_period half load permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period) + 6), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | 
|  | }, | 
|  | { | 
|  | "check bpf_perf_event_data->sample_period word load permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period) + 4), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | 
|  | }, | 
|  | { | 
|  | "check bpf_perf_event_data->sample_period dword load permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct bpf_perf_event_data, sample_period)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = ACCEPT, | 
|  | .prog_type = BPF_PROG_TYPE_PERF_EVENT, | 
|  | }, | 
|  | { | 
|  | "check skb->data half load not permitted", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, data) + 2), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid bpf_context access", | 
|  | }, | 
|  | { | 
|  | "check skb->tc_classid half load not permitted for lwt prog", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | #if __BYTE_ORDER == __LITTLE_ENDIAN | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_classid)), | 
|  | #else | 
|  | BPF_LDX_MEM(BPF_H, BPF_REG_0, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, tc_classid) + 2), | 
|  | #endif | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .result = REJECT, | 
|  | .errstr = "invalid bpf_context access", | 
|  | .prog_type = BPF_PROG_TYPE_LWT_IN, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, positive bounds", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 2), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 3), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 4, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 2", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5), | 
|  | BPF_MOV64_IMM(BPF_REG_8, 0), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_8, BPF_REG_1), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R8 invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 3", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 4), | 
|  | BPF_MOV64_REG(BPF_REG_8, BPF_REG_1), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_8, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_8), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_8, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R8 invalid mem access 'inv'", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 4", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 1), | 
|  | BPF_ALU64_REG(BPF_AND, BPF_REG_1, BPF_REG_2), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 5", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 5), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_0, 4), | 
|  | BPF_ALU64_REG(BPF_SUB, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 6", | 
|  | .insns = { | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_MOV64_REG(BPF_REG_3, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_3, -512), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_4, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_6, -1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_4, BPF_REG_6, 5), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_4, 1, 4), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_4, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_5, 0), | 
|  | BPF_ST_MEM(BPF_H, BPF_REG_10, -512, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_skb_load_bytes), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R4 min value is negative, either use unsigned", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 7", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 7), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 1024 * 1024 * 1024), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, 3), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 8", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 9", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 10), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_LD_IMM64(BPF_REG_2, -9223372036854775808ULL), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .result = ACCEPT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 10", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 0), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_2, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 11", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | 
|  | /* Dead branch. */ | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 12", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -6), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 13", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 6), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, 2), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_7, 1), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 0, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_7, BPF_REG_1), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_7, 4, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_7), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 14", | 
|  | .insns = { | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_9, BPF_REG_1, | 
|  | offsetof(struct __sk_buff, mark)), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -1), | 
|  | BPF_MOV64_IMM(BPF_REG_8, 2), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_9, 42, 6), | 
|  | BPF_JMP_REG(BPF_JSGT, BPF_REG_8, BPF_REG_1, 3), | 
|  | BPF_JMP_IMM(BPF_JSGT, BPF_REG_1, 1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_JMP_REG(BPF_JGT, BPF_REG_1, BPF_REG_2, -3), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, -7), | 
|  | }, | 
|  | .fixup_map1 = { 4 }, | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "bounds checks mixing signed and unsigned, variant 15", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 4), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -16, -8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_10, -16), | 
|  | BPF_MOV64_IMM(BPF_REG_2, -6), | 
|  | BPF_JMP_REG(BPF_JGE, BPF_REG_2, BPF_REG_1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_0, 1, 2), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_ST_MEM(BPF_B, BPF_REG_0, 0, 0), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr_unpriv = "R0 pointer comparison prohibited", | 
|  | .errstr = "R0 min value is negative", | 
|  | .result = REJECT, | 
|  | .result_unpriv = REJECT, | 
|  | }, | 
|  | { | 
|  | "subtraction bounds (map value) variant 1", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 9), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 7), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 5), | 
|  | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ALU64_IMM(BPF_RSH, BPF_REG_1, 56), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 max value is outside of the array range", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "subtraction bounds (map value) variant 2", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_1, 0xff, 6), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_3, BPF_REG_0, 1), | 
|  | BPF_JMP_IMM(BPF_JGT, BPF_REG_3, 0xff, 4), | 
|  | BPF_ALU64_REG(BPF_SUB, BPF_REG_1, BPF_REG_3), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_LDX_MEM(BPF_B, BPF_REG_0, BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map1 = { 3 }, | 
|  | .errstr = "R0 min value is negative, either use unsigned index or do a if (index >=0) check.", | 
|  | .result = REJECT, | 
|  | }, | 
|  | { | 
|  | "variable-offset ctx access", | 
|  | .insns = { | 
|  | /* Get an unknown value */ | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | 
|  | /* Make it small and 4-byte aligned */ | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), | 
|  | /* add it to skb.  We now have either &skb->len or | 
|  | * &skb->pkt_type, but we don't know which | 
|  | */ | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_1, BPF_REG_2), | 
|  | /* dereference it */ | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_1, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "variable ctx access var_off=(0x0; 0x4)", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_IN, | 
|  | }, | 
|  | { | 
|  | "variable-offset stack access", | 
|  | .insns = { | 
|  | /* Fill the top 8 bytes of the stack */ | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | /* Get an unknown value */ | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | 
|  | /* Make it small and 4-byte aligned */ | 
|  | BPF_ALU64_IMM(BPF_AND, BPF_REG_2, 4), | 
|  | BPF_ALU64_IMM(BPF_SUB, BPF_REG_2, 8), | 
|  | /* add it to fp.  We now have either fp-4 or fp-8, but | 
|  | * we don't know which | 
|  | */ | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_2, BPF_REG_10), | 
|  | /* dereference it */ | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_0, BPF_REG_2, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "variable stack access var_off=(0xfffffffffffffff8; 0x4)", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_IN, | 
|  | }, | 
|  | { | 
|  | "liveness pruning and write screening", | 
|  | .insns = { | 
|  | /* Get an unknown value */ | 
|  | BPF_LDX_MEM(BPF_W, BPF_REG_2, BPF_REG_1, 0), | 
|  | /* branch conditions teach us nothing about R2 */ | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_JMP_IMM(BPF_JGE, BPF_REG_2, 0, 1), | 
|  | BPF_MOV64_IMM(BPF_REG_0, 0), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "R0 !read_ok", | 
|  | .result = REJECT, | 
|  | .prog_type = BPF_PROG_TYPE_LWT_IN, | 
|  | }, | 
|  | { | 
|  | "varlen_map_value_access pruning", | 
|  | .insns = { | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_10, -8, 0), | 
|  | BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), | 
|  | BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), | 
|  | BPF_LD_MAP_FD(BPF_REG_1, 0), | 
|  | BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, | 
|  | BPF_FUNC_map_lookup_elem), | 
|  | BPF_JMP_IMM(BPF_JEQ, BPF_REG_0, 0, 8), | 
|  | BPF_LDX_MEM(BPF_DW, BPF_REG_1, BPF_REG_0, 0), | 
|  | BPF_MOV32_IMM(BPF_REG_2, MAX_ENTRIES), | 
|  | BPF_JMP_REG(BPF_JSGT, BPF_REG_2, BPF_REG_1, 1), | 
|  | BPF_MOV32_IMM(BPF_REG_1, 0), | 
|  | BPF_ALU32_IMM(BPF_LSH, BPF_REG_1, 2), | 
|  | BPF_ALU64_REG(BPF_ADD, BPF_REG_0, BPF_REG_1), | 
|  | BPF_JMP_IMM(BPF_JA, 0, 0, 0), | 
|  | BPF_ST_MEM(BPF_DW, BPF_REG_0, 0, | 
|  | offsetof(struct test_val, foo)), | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .fixup_map2 = { 3 }, | 
|  | .errstr_unpriv = "R0 leaks addr", | 
|  | .errstr = "R0 unbounded memory access", | 
|  | .result_unpriv = REJECT, | 
|  | .result = REJECT, | 
|  | .flags = F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, | 
|  | }, | 
|  | { | 
|  | "invalid 64-bit BPF_END", | 
|  | .insns = { | 
|  | BPF_MOV32_IMM(BPF_REG_0, 0), | 
|  | { | 
|  | .code  = BPF_ALU64 | BPF_END | BPF_TO_LE, | 
|  | .dst_reg = BPF_REG_0, | 
|  | .src_reg = 0, | 
|  | .off   = 0, | 
|  | .imm   = 32, | 
|  | }, | 
|  | BPF_EXIT_INSN(), | 
|  | }, | 
|  | .errstr = "BPF_END uses reserved fields", | 
|  | .result = REJECT, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static int probe_filter_length(const struct bpf_insn *fp) | 
|  | { | 
|  | int len; | 
|  |  | 
|  | for (len = MAX_INSNS - 1; len > 0; --len) | 
|  | if (fp[len].code != 0 || fp[len].imm != 0) | 
|  | break; | 
|  | return len + 1; | 
|  | } | 
|  |  | 
|  | static int create_map(uint32_t size_value, uint32_t max_elem) | 
|  | { | 
|  | int fd; | 
|  |  | 
|  | fd = bpf_create_map(BPF_MAP_TYPE_HASH, sizeof(long long), | 
|  | size_value, max_elem, BPF_F_NO_PREALLOC); | 
|  | if (fd < 0) | 
|  | printf("Failed to create hash map '%s'!\n", strerror(errno)); | 
|  |  | 
|  | return fd; | 
|  | } | 
|  |  | 
|  | static int create_prog_array(void) | 
|  | { | 
|  | int fd; | 
|  |  | 
|  | fd = bpf_create_map(BPF_MAP_TYPE_PROG_ARRAY, sizeof(int), | 
|  | sizeof(int), 4, 0); | 
|  | if (fd < 0) | 
|  | printf("Failed to create prog array '%s'!\n", strerror(errno)); | 
|  |  | 
|  | return fd; | 
|  | } | 
|  |  | 
|  | static int create_map_in_map(void) | 
|  | { | 
|  | int inner_map_fd, outer_map_fd; | 
|  |  | 
|  | inner_map_fd = bpf_create_map(BPF_MAP_TYPE_ARRAY, sizeof(int), | 
|  | sizeof(int), 1, 0); | 
|  | if (inner_map_fd < 0) { | 
|  | printf("Failed to create array '%s'!\n", strerror(errno)); | 
|  | return inner_map_fd; | 
|  | } | 
|  |  | 
|  | outer_map_fd = bpf_create_map_in_map(BPF_MAP_TYPE_ARRAY_OF_MAPS, | 
|  | sizeof(int), inner_map_fd, 1, 0); | 
|  | if (outer_map_fd < 0) | 
|  | printf("Failed to create array of maps '%s'!\n", | 
|  | strerror(errno)); | 
|  |  | 
|  | close(inner_map_fd); | 
|  |  | 
|  | return outer_map_fd; | 
|  | } | 
|  |  | 
|  | static char bpf_vlog[32768]; | 
|  |  | 
|  | static void do_test_fixup(struct bpf_test *test, struct bpf_insn *prog, | 
|  | int *map_fds) | 
|  | { | 
|  | int *fixup_map1 = test->fixup_map1; | 
|  | int *fixup_map2 = test->fixup_map2; | 
|  | int *fixup_prog = test->fixup_prog; | 
|  | int *fixup_map_in_map = test->fixup_map_in_map; | 
|  |  | 
|  | /* Allocating HTs with 1 elem is fine here, since we only test | 
|  | * for verifier and not do a runtime lookup, so the only thing | 
|  | * that really matters is value size in this case. | 
|  | */ | 
|  | if (*fixup_map1) { | 
|  | map_fds[0] = create_map(sizeof(long long), 1); | 
|  | do { | 
|  | prog[*fixup_map1].imm = map_fds[0]; | 
|  | fixup_map1++; | 
|  | } while (*fixup_map1); | 
|  | } | 
|  |  | 
|  | if (*fixup_map2) { | 
|  | map_fds[1] = create_map(sizeof(struct test_val), 1); | 
|  | do { | 
|  | prog[*fixup_map2].imm = map_fds[1]; | 
|  | fixup_map2++; | 
|  | } while (*fixup_map2); | 
|  | } | 
|  |  | 
|  | if (*fixup_prog) { | 
|  | map_fds[2] = create_prog_array(); | 
|  | do { | 
|  | prog[*fixup_prog].imm = map_fds[2]; | 
|  | fixup_prog++; | 
|  | } while (*fixup_prog); | 
|  | } | 
|  |  | 
|  | if (*fixup_map_in_map) { | 
|  | map_fds[3] = create_map_in_map(); | 
|  | do { | 
|  | prog[*fixup_map_in_map].imm = map_fds[3]; | 
|  | fixup_map_in_map++; | 
|  | } while (*fixup_map_in_map); | 
|  | } | 
|  | } | 
|  |  | 
|  | static void do_test_single(struct bpf_test *test, bool unpriv, | 
|  | int *passes, int *errors) | 
|  | { | 
|  | int fd_prog, expected_ret, reject_from_alignment; | 
|  | struct bpf_insn *prog = test->insns; | 
|  | int prog_len = probe_filter_length(prog); | 
|  | int prog_type = test->prog_type; | 
|  | int map_fds[MAX_NR_MAPS]; | 
|  | const char *expected_err; | 
|  | int i; | 
|  |  | 
|  | for (i = 0; i < MAX_NR_MAPS; i++) | 
|  | map_fds[i] = -1; | 
|  |  | 
|  | do_test_fixup(test, prog, map_fds); | 
|  |  | 
|  | fd_prog = bpf_verify_program(prog_type ? : BPF_PROG_TYPE_SOCKET_FILTER, | 
|  | prog, prog_len, test->flags & F_LOAD_WITH_STRICT_ALIGNMENT, | 
|  | "GPL", 0, bpf_vlog, sizeof(bpf_vlog), 1); | 
|  |  | 
|  | expected_ret = unpriv && test->result_unpriv != UNDEF ? | 
|  | test->result_unpriv : test->result; | 
|  | expected_err = unpriv && test->errstr_unpriv ? | 
|  | test->errstr_unpriv : test->errstr; | 
|  |  | 
|  | reject_from_alignment = fd_prog < 0 && | 
|  | (test->flags & F_NEEDS_EFFICIENT_UNALIGNED_ACCESS) && | 
|  | strstr(bpf_vlog, "Unknown alignment."); | 
|  | #ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS | 
|  | if (reject_from_alignment) { | 
|  | printf("FAIL\nFailed due to alignment despite having efficient unaligned access: '%s'!\n", | 
|  | strerror(errno)); | 
|  | goto fail_log; | 
|  | } | 
|  | #endif | 
|  | if (expected_ret == ACCEPT) { | 
|  | if (fd_prog < 0 && !reject_from_alignment) { | 
|  | printf("FAIL\nFailed to load prog '%s'!\n", | 
|  | strerror(errno)); | 
|  | goto fail_log; | 
|  | } | 
|  | } else { | 
|  | if (fd_prog >= 0) { | 
|  | printf("FAIL\nUnexpected success to load!\n"); | 
|  | goto fail_log; | 
|  | } | 
|  | if (!strstr(bpf_vlog, expected_err) && !reject_from_alignment) { | 
|  | printf("FAIL\nUnexpected error message!\n"); | 
|  | goto fail_log; | 
|  | } | 
|  | } | 
|  |  | 
|  | (*passes)++; | 
|  | printf("OK%s\n", reject_from_alignment ? | 
|  | " (NOTE: reject due to unknown alignment)" : ""); | 
|  | close_fds: | 
|  | close(fd_prog); | 
|  | for (i = 0; i < MAX_NR_MAPS; i++) | 
|  | close(map_fds[i]); | 
|  | sched_yield(); | 
|  | return; | 
|  | fail_log: | 
|  | (*errors)++; | 
|  | printf("%s", bpf_vlog); | 
|  | goto close_fds; | 
|  | } | 
|  |  | 
|  | static bool is_admin(void) | 
|  | { | 
|  | cap_t caps; | 
|  | cap_flag_value_t sysadmin = CAP_CLEAR; | 
|  | const cap_value_t cap_val = CAP_SYS_ADMIN; | 
|  |  | 
|  | #ifdef CAP_IS_SUPPORTED | 
|  | if (!CAP_IS_SUPPORTED(CAP_SETFCAP)) { | 
|  | perror("cap_get_flag"); | 
|  | return false; | 
|  | } | 
|  | #endif | 
|  | caps = cap_get_proc(); | 
|  | if (!caps) { | 
|  | perror("cap_get_proc"); | 
|  | return false; | 
|  | } | 
|  | if (cap_get_flag(caps, cap_val, CAP_EFFECTIVE, &sysadmin)) | 
|  | perror("cap_get_flag"); | 
|  | if (cap_free(caps)) | 
|  | perror("cap_free"); | 
|  | return (sysadmin == CAP_SET); | 
|  | } | 
|  |  | 
|  | static int set_admin(bool admin) | 
|  | { | 
|  | cap_t caps; | 
|  | const cap_value_t cap_val = CAP_SYS_ADMIN; | 
|  | int ret = -1; | 
|  |  | 
|  | caps = cap_get_proc(); | 
|  | if (!caps) { | 
|  | perror("cap_get_proc"); | 
|  | return -1; | 
|  | } | 
|  | if (cap_set_flag(caps, CAP_EFFECTIVE, 1, &cap_val, | 
|  | admin ? CAP_SET : CAP_CLEAR)) { | 
|  | perror("cap_set_flag"); | 
|  | goto out; | 
|  | } | 
|  | if (cap_set_proc(caps)) { | 
|  | perror("cap_set_proc"); | 
|  | goto out; | 
|  | } | 
|  | ret = 0; | 
|  | out: | 
|  | if (cap_free(caps)) | 
|  | perror("cap_free"); | 
|  | return ret; | 
|  | } | 
|  |  | 
|  | static int do_test(bool unpriv, unsigned int from, unsigned int to) | 
|  | { | 
|  | int i, passes = 0, errors = 0; | 
|  |  | 
|  | for (i = from; i < to; i++) { | 
|  | struct bpf_test *test = &tests[i]; | 
|  |  | 
|  | /* Program types that are not supported by non-root we | 
|  | * skip right away. | 
|  | */ | 
|  | if (!test->prog_type) { | 
|  | if (!unpriv) | 
|  | set_admin(false); | 
|  | printf("#%d/u %s ", i, test->descr); | 
|  | do_test_single(test, true, &passes, &errors); | 
|  | if (!unpriv) | 
|  | set_admin(true); | 
|  | } | 
|  |  | 
|  | if (!unpriv) { | 
|  | printf("#%d/p %s ", i, test->descr); | 
|  | do_test_single(test, false, &passes, &errors); | 
|  | } | 
|  | } | 
|  |  | 
|  | printf("Summary: %d PASSED, %d FAILED\n", passes, errors); | 
|  | return errors ? EXIT_FAILURE : EXIT_SUCCESS; | 
|  | } | 
|  |  | 
|  | int main(int argc, char **argv) | 
|  | { | 
|  | struct rlimit rinf = { RLIM_INFINITY, RLIM_INFINITY }; | 
|  | struct rlimit rlim = { 1 << 20, 1 << 20 }; | 
|  | unsigned int from = 0, to = ARRAY_SIZE(tests); | 
|  | bool unpriv = !is_admin(); | 
|  |  | 
|  | if (argc == 3) { | 
|  | unsigned int l = atoi(argv[argc - 2]); | 
|  | unsigned int u = atoi(argv[argc - 1]); | 
|  |  | 
|  | if (l < to && u < to) { | 
|  | from = l; | 
|  | to   = u + 1; | 
|  | } | 
|  | } else if (argc == 2) { | 
|  | unsigned int t = atoi(argv[argc - 1]); | 
|  |  | 
|  | if (t < to) { | 
|  | from = t; | 
|  | to   = t + 1; | 
|  | } | 
|  | } | 
|  |  | 
|  | setrlimit(RLIMIT_MEMLOCK, unpriv ? &rlim : &rinf); | 
|  | return do_test(unpriv, from, to); | 
|  | } |