Improper Locking Affecting kernel-rt-debug-modules-extra package, versions <0:4.18.0-553.22.1.rt7.363.el8_10


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-ALMALINUX8-KERNELRTDEBUGMODULESEXTRA-8096884
  • published25 Sept 2024
  • disclosed24 Sept 2024

Introduced: 24 Sep 2024

CVE-2024-42090  (opens in a new tab)
CWE-667  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 kernel-rt-debug-modules-extra to version 0:4.18.0-553.22.1.rt7.363.el8_10 or higher.
This issue was patched in ALSA-2024:7001.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-rt-debug-modules-extra package and not the kernel-rt-debug-modules-extra package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

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.

CVSS Scores

version 3.1