)]}'
{
  "commit": "82aec772fca2223bc5774bd9af486fd95766e578",
  "tree": "d17254f5e26a5ff7b1dbb5cfd0a6f7932234863a",
  "parents": [
    "bae8a5d2e759da2e0cba33ab2080deee96a09373"
  ],
  "author": {
    "name": "Jakub Kicinski",
    "email": "kuba@kernel.org",
    "time": "Thu Feb 19 11:50:21 2026 -0800"
  },
  "committer": {
    "name": "Paolo Abeni",
    "email": "pabeni@redhat.com",
    "time": "Tue Feb 24 10:46:29 2026 +0100"
  },
  "message": "netconsole: avoid OOB reads, msg is not nul-terminated\n\nmsg passed to netconsole from the console subsystem is not guaranteed\nto be nul-terminated. Before recent\ncommit 7eab73b18630 (\"netconsole: convert to NBCON console infrastructure\")\nthe message would be placed in printk_shared_pbufs, a static global\nbuffer, so KASAN had harder time catching OOB accesses. Now we see:\n\n    printk: console [netcon_ext0] enabled\n    BUG: KASAN: slab-out-of-bounds in string+0x1f7/0x240\n    Read of size 1 at addr ffff88813b6d4c00 by task pr/netcon_ext0/594\n\n    CPU: 65 UID: 0 PID: 594 Comm: pr/netcon_ext0 Not tainted 6.19.0-11754-g4246fd6547c9\n    Call Trace:\n     kasan_report+0xe4/0x120\n     string+0x1f7/0x240\n     vsnprintf+0x655/0xba0\n     scnprintf+0xba/0x120\n     netconsole_write+0x3fe/0xa10\n     nbcon_emit_next_record+0x46e/0x860\n     nbcon_kthread_func+0x623/0x750\n\n    Allocated by task 1:\n     nbcon_alloc+0x1ea/0x450\n     register_console+0x26b/0xe10\n     init_netconsole+0xbb0/0xda0\n\n    The buggy address belongs to the object at ffff88813b6d4000\n                which belongs to the cache kmalloc-4k of size 4096\n    The buggy address is located 0 bytes to the right of\n                allocated 3072-byte region [ffff88813b6d4000, ffff88813b6d4c00)\n\nFixes: c62c0a17f9b7 (\"netconsole: Append kernel version to message\")\nSigned-off-by: Jakub Kicinski \u003ckuba@kernel.org\u003e\nReviewed-by: Simon Horman \u003chorms@kernel.org\u003e\nLink: https://patch.msgid.link/20260219195021.2099699-1-kuba@kernel.org\nSigned-off-by: Paolo Abeni \u003cpabeni@redhat.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "d144787b29471cefc8f6b64c658f272039ec51e9",
      "old_mode": 33188,
      "old_path": "drivers/net/netconsole.c",
      "new_id": "1b6a4135ec0864ffa42dce6384ca93ff1389c5ea",
      "new_mode": 33188,
      "new_path": "drivers/net/netconsole.c"
    }
  ]
}