CVE-2024-42090

MEDIUM
Published Jul 29, 2024 Modified May 12, 2026 CWE-667

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-667 CWE-667

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0 https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1 https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6 https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04 https://git.kernel.org/stable/c/01fe2f885f7813f8aed5d3704b384a97b1116a9e https://git.kernel.org/stable/c/4038c57bf61631219b31f1bd6e92106ec7f084dc https://git.kernel.org/stable/c/420ce1261907e5dbeda1e4daffd5b6c76f8188c0 https://git.kernel.org/stable/c/48a7a7c9571c3e62f17012dd7f2063e926179ddd https://git.kernel.org/stable/c/adec57ff8e66aee632f3dd1f93787c13d112b7a1 https://git.kernel.org/stable/c/b36efd2e3e22a329444b6b24fa48df6d20ae66e6 https://git.kernel.org/stable/c/b813e3fd102a959c5b208ed68afe27e0137a561b https://git.kernel.org/stable/c/e65a0dc2e85efb28e182aca50218e8a056d0ce04

Frequently Asked Questions

What is CVE-2024-42090? +
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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-42090? +
CVE-2024-42090 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-42090? +
CVE-2024-42090 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-42090? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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