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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required Low

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Key SSVC decision points have not yet been added.

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

No data.

No data.

References
Link Providers
https://git.kernel.org/stable/c/1a2ea887a5cd7d47bab599f733d89444df018b1a cve-icon cve-icon
https://git.kernel.org/stable/c/1a7fc8fed2bb2e113604fde7a45432ace2056b97 cve-icon cve-icon
https://git.kernel.org/stable/c/4002ee98c022d671ecc1e4a84029e9ae7d8a5603 cve-icon cve-icon
https://git.kernel.org/stable/c/688c688e0bf55824f4a38f8c2180046f089a3e3b cve-icon cve-icon
https://git.kernel.org/stable/c/b7e0535060a60cc99eafc19cc665d979714cd73a cve-icon cve-icon
https://git.kernel.org/stable/c/ba7f7c2b2b3261e7def67018c38c69b626e0e66e cve-icon cve-icon
https://git.kernel.org/stable/c/d77ef2f621cd1d605372c4c6ce667c496f6990c3 cve-icon cve-icon
https://git.kernel.org/stable/c/e7265dc4c670b89611bcf5fe33acf99bc0aa294f cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2025102810-CVE-2025-40030-b395@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2025-40030 cve-icon
https://www.cve.org/CVERecord?id=CVE-2025-40030 cve-icon
History

Wed, 29 Oct 2025 13:45:00 +0000

Type Values Removed Values Added
References

Wed, 29 Oct 2025 11:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Vendors & Products Linux
Linux linux Kernel

Wed, 29 Oct 2025 00:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Moderate

Tue, 28 Oct 2025 12:00:00 +0000

Type Values Removed Values Added
Description 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.
Title pinctrl: check the return value of pinmux_ops::get_function_name()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-10-29T13:19:34.573Z

Reserved: 2025-04-16T07:20:57.153Z

Link: CVE-2025-40030

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-10-28T12:15:36.757

Modified: 2025-10-30T15:05:32.197

Link: CVE-2025-40030

cve-icon Redhat

Severity : Moderate

Publid Date: 2025-10-28T00:00:00Z

Links: CVE-2025-40030 - Bugzilla