CVE-2026-53307 Details
Description
In the Linux kernel, the following vulnerability has been resolved: pinctrl: pinconf-generic: Fully validate 'pinmux' property The pinconf_generic_parse_dt_pinmux() assumes that the 'pinmux' property is not empty when present. This might be not true. With that, the allocator will give a special value in return and not NULL which lead to the crash when trying to access that (invalid) memory. Fix that by fully validating 'pinmux' value, including its length.
A vulnerability in the Linux kernel's pin control subsystem has been addressed, specifically within the 'pinmux' property handling of the pinconf-generic configuration. The issue arose because the pinconf_generic_parse_dt_pinmux() function incorrectly assumed that the 'pinmux' property would always contain data when present. This assumption proved false, leading to the allocator returning a special value instead of NULL. Consequently, the kernel crashed when it attempted to access this invalid memory. The vulnerability has been fixed by implementing a thorough validation of the 'pinmux' property, including checking its length.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. The specific commit containing the fix is available in the Linux kernel stable tree.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/6476aac13805721e16439bd71f0e1703a4154517 | kernel.org | Patch |
| https://git.kernel.org/stable/c/b7842b722169359e7ffe4b838d2496e9e72ac996 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c98324ea7849b6e5baa1774f71709b375a2c2f9e | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-476 | NULL Pointer Dereference | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.15, < 6.18.33 >= 6.19, < 7.0.10 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 6, 2026 | Initial Analysis | [email protected] |
| Jun 26, 2026 | New CVE Received | kernel.org |