ghsa-88g6-52pm-gr2w
Vulnerability from github
Published
2024-10-21 18:30
Modified
2024-10-24 06:30
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: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2)

This commit adds a null check for the 'afb' variable in the amdgpu_dm_plane_handle_cursor_update function. Previously, 'afb' was assumed to be null, but was used later in the code without a null check. This could potentially lead to a null pointer dereference.

Changes since v1: - Moved the null check for 'afb' to the line where 'afb' is used. (Alex)

Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed 'afb' could be null (see line 1252)

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{
  "affected": [],
  "aliases": [
    "CVE-2024-49905"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:13Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Add null check for \u0027afb\u0027 in amdgpu_dm_plane_handle_cursor_update (v2)\n\nThis commit adds a null check for the \u0027afb\u0027 variable in the\namdgpu_dm_plane_handle_cursor_update function. Previously, \u0027afb\u0027 was\nassumed to be null, but was used later in the code without a null check.\nThis could potentially lead to a null pointer dereference.\n\nChanges since v1:\n- Moved the null check for \u0027afb\u0027 to the line where \u0027afb\u0027 is used. (Alex)\n\nFixes the below:\ndrivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_plane.c:1298 amdgpu_dm_plane_handle_cursor_update() error: we previously assumed \u0027afb\u0027 could be null (see line 1252)",
  "id": "GHSA-88g6-52pm-gr2w",
  "modified": "2024-10-24T06:30:29Z",
  "published": "2024-10-21T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49905"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75839e2365b666ff4e1b9047e442cab138eac4f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9132882eaae4d21d2fc5843b3308379a481ebdf0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd0e24e5e608ccb9fdda300bb974496d6d8cf57d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cd9e9e0852d501f169aa3bb34e4b413d2eb48c37"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e4e26cbe34d7c1c1db5fb7b3101573c29866439f"
    }
  ],
  "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"
    }
  ]
}


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