CVE-2025-40030 (GCVE-0-2025-40030)
Vulnerability from cvelistv5
Published
2025-10-28 11:48
Modified
2026-01-02 15:32
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
Version: f913cfce4ee49a3382a9ff95696f49a46e56e974
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{
  "containers": {
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          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/pinctrl/pinmux.c"
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          "vendor": "Linux",
          "versions": [
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              "status": "affected",
              "version": "4.19"
            },
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              "status": "unaffected",
              "version": "0",
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            },
            {
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              "status": "unaffected",
              "version": "5.4.301",
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            },
            {
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              "status": "unaffected",
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.195",
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            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.156",
              "versionType": "semver"
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            {
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              "status": "unaffected",
              "version": "6.6.112",
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              "version": "6.17.3",
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              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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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": "2026-01-02T15:32:56.253Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/1a7fc8fed2bb2e113604fde7a45432ace2056b97"
        },
        {
          "url": "https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f"
        },
        {
          "url": "https://git.kernel.org/stable/c/d77ef2f621cd1d605372c4c6ce667c496f6990c3"
        },
        {
          "url": "https://git.kernel.org/stable/c/ba7f7c2b2b3261e7def67018c38c69b626e0e66e"
        },
        {
          "url": "https://git.kernel.org/stable/c/1a2ea887a5cd7d47bab599f733d89444df018b1a"
        },
        {
          "url": "https://git.kernel.org/stable/c/688c688e0bf55824f4a38f8c2180046f089a3e3b"
        },
        {
          "url": "https://git.kernel.org/stable/c/b7e0535060a60cc99eafc19cc665d979714cd73a"
        },
        {
          "url": "https://git.kernel.org/stable/c/4002ee98c022d671ecc1e4a84029e9ae7d8a5603"
        }
      ],
      "title": "pinctrl: check the return value of pinmux_ops::get_function_name()",
      "x_generator": {
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      }
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40030",
    "datePublished": "2025-10-28T11:48:01.608Z",
    "dateReserved": "2025-04-16T07:20:57.153Z",
    "dateUpdated": "2026-01-02T15:32:56.253Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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