CVE-2022-48708: pinctrl: single: fix potential NULL dereference

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: 2024-05-21 · updated 2026-06-17
Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: pinctrl: single: fix potential NULL dereference Added checking of pointer "function" in pcs_set_mux(). pinmux_generic_get_function() can return NULL and the pointer "function" was dereferenced without checking against NULL. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

Linux kernel: from 4.11 before 4.14.306; from 4.15 before 4.19.273; from 4.20 before 5.4.232; from 5.5 before 5.10.168; from 5.11 before 5.15.94; from 5.16 before 6.1.12 — fixed in 4.14.306, 4.19.273, 5.10.168, 5.15.94, 5.4.232, 6.1.12

How to fix

Upgrade to a fixed version: Linux kernel 4.14.306, 4.19.273, 5.10.168, 5.15.94. Check the vendor advisory for mitigations.

References

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