CVE-2024-42090: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER In create_pinctrl(), pinctrl_maps_mutex is acquired before calling add_setting(). If add_setting() returns -EPROBE_DEFER, create_pinctrl() calls pinctrl_free(). However, pinctrl_free() attempts to acquire pinctrl_maps_mutex, which is already held by create_pinctrl(), leading to a potential deadlock. This patch resolves the issue by releasing pinctrl_maps_mutex before calling pinctrl_free(), preventing the deadlock. This bug was discovered and resolved using Coverity Static Analysis Security Testing (SAST) by Synopsys, Inc.

Affected products

• Linux Linux Kernel: from 3.10, before 4.19.317 (fixed in 4.19.317); from 4.20, before 5.4.279 (fixed in 5.4.279); from 5.5, before 5.10.221 (fixed in 5.10.221); from 5.11, before 5.15.162 (fixed in 5.15.162); from 5.16, before 6.1.97 (fixed in 6.1.97); from 6.2, before 6.6.37 (fixed in 6.6.37); …

Published 2024-07-29. Last modified 2026-06-17.