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CVE-2024-42090 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
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 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-667 Improper Locking cwe source acceptance level NIST  

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Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-42090
NVD Published Date:
07/29/2024
NVD Last Modified:
08/26/2024
Source:
kernel.org