ghsa-j36m-8cr4-5cq4
Vulnerability from github
Published
2025-05-09 09:33
Modified
2025-05-09 09:33
Details

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

drm/amd/display: prevent hang on link training fail

[Why] When link training fails, the phy clock will be disabled. However, in enable_streams, it is assumed that link training succeeded and the mux selects the phy clock, causing a hang when a register write is made.

[How] When enable_stream is hit, check if link training failed. If it did, fall back to the ref clock to avoid a hang and keep the system in a recoverable state.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-37870"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-05-09T07:16:08Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: prevent hang on link training fail\n\n[Why]\nWhen link training fails, the phy clock will be disabled. However, in\nenable_streams, it is assumed that link training succeeded and the\nmux selects the phy clock, causing a hang when a register write is made.\n\n[How]\nWhen enable_stream is hit, check if link training failed. If it did, fall\nback to the ref clock to avoid a hang and keep the system in a recoverable\nstate.",
  "id": "GHSA-j36m-8cr4-5cq4",
  "modified": "2025-05-09T09:33:20Z",
  "published": "2025-05-09T09:33:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37870"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0363c03672cd3191f037905bf981eb523a3b71b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04bf4f2a497e9877c425c5124652e61fb8a1a0aa"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8058061ed9d6bc259d1e678607b07d259342c08f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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