GHSA-7QH4-CC67-W444

Vulnerability from github – Published: 2026-06-26 21:32 – Updated: 2026-07-08 06:31
VLAI
Details

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

ALSA: hda/conexant: Fix missing error check for jack detection

In cx_probe(), the return value of snd_hda_jack_detect_enable_callback() is ignored. This function returns a pointer, and if it fails (e.g., due to memory allocation failure), it returns an error pointer which must be checked using IS_ERR().

If the registration fails, the driver continues to probe, but the jack detection callback will not be registered. This can lead to a kernel crash later when the driver attempts to handle jack events or accesses the uninitialized structure.

Check the return value using IS_ERR() and propagate the error via PTR_ERR() to the probe caller.

Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-53291"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-26T20:17:21Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/conexant: Fix missing error check for jack detection\n\nIn cx_probe(), the return value of snd_hda_jack_detect_enable_callback()\nis ignored. This function returns a pointer, and if it fails (e.g., due\nto memory allocation failure), it returns an error pointer which must\nbe checked using IS_ERR().\n\nIf the registration fails, the driver continues to probe, but the jack\ndetection callback will not be registered. This can lead to a kernel\ncrash later when the driver attempts to handle jack events or accesses\nthe uninitialized structure.\n\nCheck the return value using IS_ERR() and propagate the error via\nPTR_ERR() to the probe caller.",
  "id": "GHSA-7qh4-cc67-w444",
  "modified": "2026-07-08T06:31:35Z",
  "published": "2026-06-26T21:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53291"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1da5c73f3793b224696617a2a21def7500ba18d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/49c2c5924552e1d2f8b635dee663abebbb7cf63b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2a33e87a2ffce3046c574d24eec4390c27c9365"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b0e2333a231107adedd38c6fcfe1adc6162716fc"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d68f753d89f4ef6e410d7e8b7e8ab2fdde921b80"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dd110cc00cf854a8ecd8d003127a4178c28574ea"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f837c7b85143a7c54140ff41ad5c076b73cd9933"
    }
  ],
  "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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