ghsa-g9mh-3crx-2qvf
Vulnerability from github
Published
2024-10-21 18:30
Modified
2024-12-09 15:31
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: Add null check for pipe_ctx->plane_state in dcn20_program_pipe

This commit addresses a null pointer dereference issue in the dcn20_program_pipe function. The issue could occur when pipe_ctx->plane_state is null.

The fix adds a check to ensure pipe_ctx->plane_state is not null before accessing. This prevents a null pointer dereference.

Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn20/dcn20_hwseq.c:1925 dcn20_program_pipe() error: we previously assumed 'pipe_ctx->plane_state' could be null (see line 1877)

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{
  "affected": [],
  "aliases": [
    "CVE-2024-49914"
  ],
  "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 pipe_ctx-\u003eplane_state in dcn20_program_pipe\n\nThis commit addresses a null pointer dereference issue in the\n`dcn20_program_pipe` function. The issue could occur when\n`pipe_ctx-\u003eplane_state` is null.\n\nThe fix adds a check to ensure `pipe_ctx-\u003eplane_state` is not null\nbefore accessing. This prevents a null pointer dereference.\n\nReported by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/hwss/dcn20/dcn20_hwseq.c:1925 dcn20_program_pipe() error: we previously assumed \u0027pipe_ctx-\u003eplane_state\u0027 could be null (see line 1877)",
  "id": "GHSA-g9mh-3crx-2qvf",
  "modified": "2024-12-09T15:31:33Z",
  "published": "2024-10-21T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49914"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/65a6fee22d5cfa645cb05489892dc9cd3d142fc2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/68f75e6f08aad66069a629db8d7840919156c761"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8e4ed3cf1642df0c4456443d865cff61a9598aa8"
    }
  ],
  "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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