What’s Vulnerable › Vulnerabilities

CVE-2026-53307: pinctrl: pinconf-generic: Fully validate 'pinmux' property

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-26 · updated 2026-07-06
• Weakness: CWE-476

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.

Affected products

• Linux kernel: from 6.15 before 6.18.33; from 6.19 before 7.0.10 — fixed in 6.18.33, 7.0.10

How to fix

Upgrade to a fixed version: Linux kernel 6.18.33, 7.0.10. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/6476aac13805721e16439bd71f0e1703a4154517
• https://git.kernel.org/stable/c/b7842b722169359e7ffe4b838d2496e9e72ac996
• https://git.kernel.org/stable/c/c98324ea7849b6e5baa1774f71709b375a2c2f9e

Get alerted when CVE-2026-53307 or the next vulnerability affects your stack