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CVE-2024-42090

5.5 · MEDIUM

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 befor…

Published Jul 29, 2024CWE-667EPSS 0.19%

Overview

CVE-2024-42090 is a medium-severity vulnerability. It was published on July 29, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9eRefgit.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dcRefgit.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0Refgit.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179dddRefgit.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1Refgit.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6Refgit.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561bRefgit.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04Refgit.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9eRefgit.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc

How CyberStrike helps

Frequently asked questions

What is CVE-2024-42090?

CVE-2024-42090 is a medium-severity vulnerability. It was published on July 29, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-42090?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-42090?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-42090?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-42090 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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