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

Vulnerability from cvelistv5 – Published: 2025-10-28 11:48 – Updated: 2026-05-11 21:41
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
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6843 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < 1a7fc8fed2bb2e113604fde7a45432ace2056b97 (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < e7265dc4c670b89611bcf5fe33acf99bc0aa294f (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < d77ef2f621cd1d605372c4c6ce667c496f6990c3 (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < ba7f7c2b2b3261e7def67018c38c69b626e0e66e (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < 1a2ea887a5cd7d47bab599f733d89444df018b1a (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < 688c688e0bf55824f4a38f8c2180046f089a3e3b (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < b7e0535060a60cc99eafc19cc665d979714cd73a (git)
Affected: f913cfce4ee49a3382a9ff95696f49a46e56e974 , < 4002ee98c022d671ecc1e4a84029e9ae7d8a5603 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.19
Unaffected: 0 , < 4.19 (semver)
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)
guessed Create a notification for this product.
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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": "2026-05-11T21:41:07.740Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f"
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        {
          "url": "https://git.kernel.org/stable/c/d77ef2f621cd1d605372c4c6ce667c496f6990c3"
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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": "2026-05-11T21:41:07.740Z",
    "state": "PUBLISHED"
  },
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      "date": "2026-10-21",
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      "cve": "CVE-2025-40030",
      "id": "msrc_CVE-2025-40030",
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      "source": "Microsoft CSAF VEX",
      "status": "final",
      "title": "pinctrl: check the return value of pinmux_ops::get_function_name()",
      "url": "https://msrc.microsoft.com/csaf/vex/2025/msrc_cve-2025-40030.json",
      "version": "1"
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            "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."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\npinctrl: verificar el valor de retorno de pinmux_ops::get_function_name()\n\nSi bien el contrato de la API en la documentaci\u00f3n no lo especifica expl\u00edcitamente, la implementaci\u00f3n gen\u00e9rica de la funci\u00f3n de callback get_function_name() de la estructura pinmux_ops - pinmux_generic_get_function_name() - puede fallar y devolver NULL. Esto ya se verifica en pinmux_check_ops(), as\u00ed que se a\u00f1ade una verificaci\u00f3n similar en pinmux_func_name_to_selector() en lugar de pasar el puntero devuelto directamente a strcmp() donde el NULL puede ser desreferenciado. Esta es una operaci\u00f3n normal al a\u00f1adir nuevas pinfunctions."
          }
        ],
        "id": "CVE-2025-40030",
        "lastModified": "2026-10-19T21:10:00.160",
        "metrics": {},
        "published": "2025-10-28T12:15:36.757",
        "references": [
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          },
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-30T10:27:19+00:00",
      "cve": "CVE-2025-40030",
      "id": "CVE-2025-40030",
      "initial_release_date": "2025-10-28T00:00:00+00:00",
      "product_status:known_affected": "260",
      "product_status:known_not_affected": "14",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: pinctrl: check the return value of pinmux_ops::get_function_name()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40030.json",
      "version": "3"
    }
  }
}



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