ghsa-vxpv-rv2q-v5r7
Vulnerability from github
Published
2024-05-01 15:30
Modified
2024-11-01 18:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

drm/amd/display: fix NULL checks for adev->dm.dc in amdgpu_dm_fini()

Since 'adev->dm.dc' in amdgpu_dm_fini() might turn out to be NULL before the call to dc_enable_dmub_notifications(), check beforehand to ensure there will not be a possible NULL-ptr-deref there.

Also, since commit 1e88eb1b2c25 ("drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP") there are two separate checks for NULL in 'adev->dm.dc' before dc_deinit_callbacks() and dc_dmub_srv_destroy(). Clean up by combining them all under one 'if'.

Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.

Show details on source website

To clipboard 

{
  "affected": [],
  "aliases": [
    "CVE-2024-27041"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-01T13:15:49Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: fix NULL checks for adev-\u003edm.dc in amdgpu_dm_fini()\n\nSince \u0027adev-\u003edm.dc\u0027 in amdgpu_dm_fini() might turn out to be NULL\nbefore the call to dc_enable_dmub_notifications(), check\nbeforehand to ensure there will not be a possible NULL-ptr-deref\nthere.\n\nAlso, since commit 1e88eb1b2c25 (\"drm/amd/display: Drop\nCONFIG_DRM_AMD_DC_HDCP\") there are two separate checks for NULL in\n\u0027adev-\u003edm.dc\u0027 before dc_deinit_callbacks() and dc_dmub_srv_destroy().\nClean up by combining them all under one \u0027if\u0027.\n\nFound by Linux Verification Center (linuxtesting.org) with static\nanalysis tool SVACE.",
  "id": "GHSA-vxpv-rv2q-v5r7",
  "modified": "2024-11-01T18:31:25Z",
  "published": "2024-05-01T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-27041"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1c62697e4086de988b31124fb8c79c244ea05f2b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a3cfb9a24a28da9cc13d2c525a76548865e182c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca2eb375db76fd50f31afdd67d6ca4f833254957"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e040f1fbe9abae91b12b074cfc3bbb5367b79811"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.