5.5

CVE-2024-42090

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

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
LinuxLinux Kernel Version >= 3.10 < 4.19.317
LinuxLinux Kernel Version >= 4.20 < 5.4.279
LinuxLinux Kernel Version >= 5.5 < 5.10.221
LinuxLinux Kernel Version >= 5.11 < 5.15.162
LinuxLinux Kernel Version >= 5.16 < 6.1.97
LinuxLinux Kernel Version >= 6.2 < 6.6.37
LinuxLinux Kernel Version >= 6.7 < 6.9.8
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.19% 0.086
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

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://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html