ghsa-jq6c-xqjw-rcrp
Vulnerability from github
Published
2025-10-28 12:30
Modified
2025-10-29 15:31
Details

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

pinctrl: check the return value of pinmux_ops::get_function_name()

While the API contract in docs doesn't specify it explicitly, the generic implementation of the get_function_name() callback from struct pinmux_ops - pinmux_generic_get_function_name() - can fail and return NULL. This is already checked in pinmux_check_ops() so add a similar check in pinmux_func_name_to_selector() instead of passing the returned pointer right down to strcmp() where the NULL can get dereferenced. This is normal operation when adding new pinfunctions.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40030"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-10-28T12:15:36Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\npinctrl: check the return value of pinmux_ops::get_function_name()\n\nWhile the API contract in docs doesn\u0027t specify it explicitly, the\ngeneric implementation of the get_function_name() callback from struct\npinmux_ops - pinmux_generic_get_function_name() - can fail and return\nNULL. This is already checked in pinmux_check_ops() so add a similar\ncheck in pinmux_func_name_to_selector() instead of passing the returned\npointer right down to strcmp() where the NULL can get dereferenced. This\nis normal operation when adding new pinfunctions.",
  "id": "GHSA-jq6c-xqjw-rcrp",
  "modified": "2025-10-29T15:31:53Z",
  "published": "2025-10-28T12:30:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40030"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a2ea887a5cd7d47bab599f733d89444df018b1a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1a7fc8fed2bb2e113604fde7a45432ace2056b97"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4002ee98c022d671ecc1e4a84029e9ae7d8a5603"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/688c688e0bf55824f4a38f8c2180046f089a3e3b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b7e0535060a60cc99eafc19cc665d979714cd73a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ba7f7c2b2b3261e7def67018c38c69b626e0e66e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d77ef2f621cd1d605372c4c6ce667c496f6990c3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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