CVE-2025-40030 (GCVE-0-2025-40030)

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2025-12-01 06:16
VLAI?
Title
pinctrl: check the return value of pinmux_ops::get_function_name()
Summary
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1a7fc8fed2bb2e113604fde7a45432ace2056b97 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < e7265dc4c670b89611bcf5fe33acf99bc0aa294f (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < d77ef2f621cd1d605372c4c6ce667c496f6990c3 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < ba7f7c2b2b3261e7def67018c38c69b626e0e66e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 1a2ea887a5cd7d47bab599f733d89444df018b1a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 688c688e0bf55824f4a38f8c2180046f089a3e3b (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < b7e0535060a60cc99eafc19cc665d979714cd73a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 4002ee98c022d671ecc1e4a84029e9ae7d8a5603 (git)
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    Linux Linux Unaffected: 5.4.301 , ≤ 5.4.* (semver)
Unaffected: 5.10.246 , ≤ 5.10.* (semver)
Unaffected: 5.15.195 , ≤ 5.15.* (semver)
Unaffected: 6.1.156 , ≤ 6.1.* (semver)
Unaffected: 6.6.112 , ≤ 6.6.* (semver)
Unaffected: 6.12.53 , ≤ 6.12.* (semver)
Unaffected: 6.17.3 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/pinmux.c"
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          "vendor": "Linux",
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              "status": "unaffected",
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            },
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              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.246",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.195",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.156",
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              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
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            {
              "lessThanOrEqual": "6.12.*",
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              "version": "6.12.53",
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              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.3",
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            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
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      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:16:32.910Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1a7fc8fed2bb2e113604fde7a45432ace2056b97"
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          "url": "https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f"
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        },
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        {
          "url": "https://git.kernel.org/stable/c/4002ee98c022d671ecc1e4a84029e9ae7d8a5603"
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      ],
      "title": "pinctrl: check the return value of pinmux_ops::get_function_name()",
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    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40030",
    "datePublished": "2025-10-28T11:48:01.608Z",
    "dateReserved": "2025-04-16T07:20:57.153Z",
    "dateUpdated": "2025-12-01T06:16:32.910Z",
    "state": "PUBLISHED"
  },
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  "vulnerability-lookup:meta": {
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  }
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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