ghsa-rfwv-p62g-fm8q
Vulnerability from github
Published
2024-03-25 09:32
Modified
2024-03-25 09:32
Details

In the Linux kernel, the following vulnerability has been resolved:

drm/amdgpu: Fix a use-after-free

looks like we forget to set ttm->sg to NULL. Hit panic below

[ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI [ 1235.989074] Call Trace: [ 1235.991751] sg_free_table+0x17/0x20 [ 1235.995667] amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu] [ 1236.002288] amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu] [ 1236.008464] ttm_tt_destroy+0x1e/0x30 [ttm] [ 1236.013066] ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm] [ 1236.018783] ttm_bo_release+0x262/0xa50 [ttm] [ 1236.023547] ttm_bo_put+0x82/0xd0 [ttm] [ 1236.027766] amdgpu_bo_unref+0x26/0x50 [amdgpu] [ 1236.032809] amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu] [ 1236.040400] kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu] [ 1236.046912] kfd_ioctl+0x463/0x690 [amdgpu]

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{
  "affected": [],
  "aliases": [
    "CVE-2021-47142"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-03-25T09:15:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: Fix a use-after-free\n\nlooks like we forget to set ttm-\u003esg to NULL.\nHit panic below\n\n[ 1235.844104] general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b7b4b: 0000 [#1] SMP DEBUG_PAGEALLOC NOPTI\n[ 1235.989074] Call Trace:\n[ 1235.991751]  sg_free_table+0x17/0x20\n[ 1235.995667]  amdgpu_ttm_backend_unbind.cold+0x4d/0xf7 [amdgpu]\n[ 1236.002288]  amdgpu_ttm_backend_destroy+0x29/0x130 [amdgpu]\n[ 1236.008464]  ttm_tt_destroy+0x1e/0x30 [ttm]\n[ 1236.013066]  ttm_bo_cleanup_memtype_use+0x51/0xa0 [ttm]\n[ 1236.018783]  ttm_bo_release+0x262/0xa50 [ttm]\n[ 1236.023547]  ttm_bo_put+0x82/0xd0 [ttm]\n[ 1236.027766]  amdgpu_bo_unref+0x26/0x50 [amdgpu]\n[ 1236.032809]  amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu+0x7aa/0xd90 [amdgpu]\n[ 1236.040400]  kfd_ioctl_alloc_memory_of_gpu+0xe2/0x330 [amdgpu]\n[ 1236.046912]  kfd_ioctl+0x463/0x690 [amdgpu]",
  "id": "GHSA-rfwv-p62g-fm8q",
  "modified": "2024-03-25T09:32:35Z",
  "published": "2024-03-25T09:32:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47142"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0707c3fea8102d211631ba515ef2159707561b0d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1e5c37385097c35911b0f8a0c67ffd10ee1af9a2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3293cf3513d69f00c14d43e2020826d45ea0e46a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7398c2aab4da960761ec182d04d6d5abbb4a226e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/952ab3f9f48eb0e8050596d41951cf516be6b122"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a849e218556f932576c0fb1c5a88714b61709a17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4ea141fd4b40636a8326df5a377d9c5cf9b3faa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f98cdf084405333ee2f5be548a91b2d168e49276"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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