)]}'
{
  "commit": "2cf4be57b301ed2d7af82e70cff5dfd96894d8de",
  "tree": "840554440aef942334f2800bf8a5ebe2347e7364",
  "parents": [
    "fa77b023eb80cdb297ff32f6b13786e483a81ca8"
  ],
  "author": {
    "name": "Jean-Christophe Guillain",
    "email": "jean-christophe@guillain.net",
    "time": "Thu Nov 05 16:32:19 2026 +0000"
  },
  "committer": {
    "name": "Joerg Roedel",
    "email": "joerg.roedel@amd.com",
    "time": "Fri Nov 06 13:22:44 2026 +0100"
  },
  "message": "iommu/amd: Fix NULL pointer dereference for GPUs without upstream bridge\n\npci_upstream_bridge() can return NULL for devices without an upstream\nbridge. The AMD GPU identity mapping quirk dereferences the returned\npointer unconditionally, causing a kernel panic during boot.\n\nCheck the pointer before accessing the bridge vendor ID.\n\nThis fixes a boot regression on a Lenovo system with an AMD PRO\nA10-9700E APU. The system now boots with AMD IOMMU enabled.\n\nFixes: bf5bdfd1f8d4 (\"iommu/amd: Force identity mode for selected GPUs only\")\n\nSigned-off-by: Jean-Christophe Guillain \u003cjean-christophe@guillain.net\u003e\nSigned-off-by: Vasant Hegde \u003cvasant.hegde@amd.com\u003e\nSigned-off-by: Joerg Roedel \u003cjoerg.roedel@amd.com\u003e\n",
  "tree_diff": [
    {
      "type": "modify",
      "old_id": "91981c8a96148c328de33001841db4a4d37eb2da",
      "old_mode": 33188,
      "old_path": "drivers/iommu/amd/iommu.c",
      "new_id": "41ee4ad1dcf826cc765c6f198d487620be60281d",
      "new_mode": 33188,
      "new_path": "drivers/iommu/amd/iommu.c"
    }
  ]
}