ghsa-fp57-xr9h-hfc8
Vulnerability from github
Published
2025-12-16 15:30
Modified
2025-12-16 15:30
Details

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

ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver

After restructuring and splitting the HDMI codec driver code, each HDMI codec driver contains the own build_controls and build_pcms ops. A copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both build_controls and build_pcms are swapped. Unfortunately both callbacks have the very same form, and the compiler didn't complain it, either. This resulted in a NULL dereference because the PCM instance hasn't been initialized at calling the build_controls callback.

Fix it by passing the proper entries.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68205"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:53Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver\n\nAfter restructuring and splitting the HDMI codec driver code, each\nHDMI codec driver contains the own build_controls and build_pcms ops.\nA copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both\nbuild_controls and build_pcms are swapped.  Unfortunately both\ncallbacks have the very same form, and the compiler didn\u0027t complain\nit, either.  This resulted in a NULL dereference because the PCM\ninstance hasn\u0027t been initialized at calling the build_controls\ncallback.\n\nFix it by passing the proper entries.",
  "id": "GHSA-fp57-xr9h-hfc8",
  "modified": "2025-12-16T15:30:45Z",
  "published": "2025-12-16T15:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68205"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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