ghsa-q823-fhxh-997g
Vulnerability from github
Published
2024-10-21 18:30
Modified
2025-11-04 00:31
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

drm/amd/display: Fix index out of bounds in degamma hardware format translation

Fixes index out of bounds issue in cm_helper_translate_curve_to_degamma_hw_format function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS).

The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds the function returns false to indicate an error.

Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:594 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:595 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:596 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max

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{
  "affected": [],
  "aliases": [
    "CVE-2024-49894"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-129"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T18:15:11Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix index out of bounds in degamma hardware format translation\n\nFixes index out of bounds issue in\n`cm_helper_translate_curve_to_degamma_hw_format` function. The issue\ncould occur when the index \u0027i\u0027 exceeds the number of transfer function\npoints (TRANSFER_FUNC_POINTS).\n\nThe fix adds a check to ensure \u0027i\u0027 is within bounds before accessing the\ntransfer function points. If \u0027i\u0027 is out of bounds the function returns\nfalse to indicate an error.\n\nReported by smatch:\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:594 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow \u0027output_tf-\u003etf_pts.red\u0027 1025 \u003c= s32max\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:595 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow \u0027output_tf-\u003etf_pts.green\u0027 1025 \u003c= s32max\ndrivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:596 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow \u0027output_tf-\u003etf_pts.blue\u0027 1025 \u003c= s32max",
  "id": "GHSA-q823-fhxh-997g",
  "modified": "2025-11-04T00:31:41Z",
  "published": "2024-10-21T18:30:57Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-49894"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b3dfa878257a7e98830b3009ca5831a01d8f85fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f5f6d90087131812c1e4b9d3103f400f1624396d"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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