ghsa-6hmr-pwgj-w283
Vulnerability from github
Published
2025-04-01 18:30
Modified
2025-04-01 18:30
Details

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

drm/amd/display: Fix out-of-bound accesses

[WHAT & HOW] hpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4), but location can have size up to 6. As a result, it is necessary to check location against MAX_HPO_DP2_ENCODERS.

Similiarly, disp_cfg_stream_location can be used as an array index which should be 0..5, so the ASSERT's conditions should be less without equal.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-21985"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-04-01T16:15:29Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Fix out-of-bound accesses\n\n[WHAT \u0026 HOW]\nhpo_stream_to_link_encoder_mapping has size MAX_HPO_DP2_ENCODERS(=4),\nbut location can have size up to 6. As a result, it is necessary to\ncheck location against MAX_HPO_DP2_ENCODERS.\n\nSimiliarly, disp_cfg_stream_location can be used as an array index which\nshould be 0..5, so the ASSERT\u0027s conditions should be less without equal.",
  "id": "GHSA-6hmr-pwgj-w283",
  "modified": "2025-04-01T18:30:55Z",
  "published": "2025-04-01T18:30:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-21985"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/36793d90d76f667d26c6dd025571481ee0c96abc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8adbb2a98b00926315fd513b5fe2596b5716b82d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9aedc776b11038f04f4641241bb7e877781e4aa4"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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