CVE-2024-42090

low-risk
Published 2024-07-29

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.

Do I need to act?

-
0.01% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (17)

Patch https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e
Patch https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc
Patch https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0
Patch https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd
Patch https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1
Patch https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6
Patch https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b
Patch https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04
Patch https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e
Patch https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc
Patch https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0
Patch https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd
Patch https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1
Patch https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6
Patch https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b
Patch https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal