CVE-2024-42090

pinctrl: fix deadlock in create_pinctrl() when handling -EPROBE_DEFER

State: Published
Severity: Not scored
Published: Jul 29, 2024
Updated: Oct 15, 2026
Reserved: Jul 29, 2024

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before e65a0dc2e85efb28e182aca50218e8a056d0ce04Affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 420ce1261907e5dbeda1e4daffd5b6c76f8188c0Affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before b813e3fd102a959c5b208ed68afe27e0137a561bAffected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 01fe2f885f7813f8aed5d3704b384a97b1116a9eAffected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before b36efd2e3e22a329444b6b24fa48df6d20ae66e6Affected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 4038c57bf61631219b31f1bd6e92106ec7f084dcAffected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 48a7a7c9571c3e62f17012dd7f2063e926179dddAffected 42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before adec57ff8e66aee632f3dd1f93787c13d112b7a1Affected
LinuxLinux	3.10Affected before 3.10Not affected 4.19.317 through 4.19.Not affected 5.4.279 through 5.4.Not affected 5.10.221 through 5.10.Not affected 5.15.162 through 5.15.Not affected 6.1.97 through 6.1.Not affected 6.6.37 through 6.6.Not affected 6.9.8 through 6.9.*Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before e65a0dc2e85efb28e182aca50218e8a056d0ce04Affected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 420ce1261907e5dbeda1e4daffd5b6c76f8188c0Affected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before b813e3fd102a959c5b208ed68afe27e0137a561bAffected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 01fe2f885f7813f8aed5d3704b384a97b1116a9eAffected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before b36efd2e3e22a329444b6b24fa48df6d20ae66e6Affected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 4038c57bf61631219b31f1bd6e92106ec7f084dcAffected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before 48a7a7c9571c3e62f17012dd7f2063e926179dddAffected
42fed7ba44e4e8c1fb27b28ad14490cb1daff3c7 to before adec57ff8e66aee632f3dd1f93787c13d112b7a1Affected

LinuxLinux

3.10Affected
before 3.10Not affected
4.19.317 through 4.19.*Not affected
5.4.279 through 5.4.*Not affected
5.10.221 through 5.10.*Not affected
5.15.162 through 5.15.*Not affected
6.1.97 through 6.1.*Not affected
6.6.37 through 6.6.*Not affected
6.9.8 through 6.9.*Not affected
6.10 and laterNot affected

References

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