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CVE-2026-64238

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: gpio: shared: fix deadlock on shared proxy's parent removal Commit 710abda58055 ("gpio: shared: call gpio_chip::of_xlate() if s…

Published Jul 24, 2026CWE-667EPSS 0.11%

Overview

CVE-2026-64238 is a medium-severity vulnerability. It was published on July 24, 2026 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:

gpio: shared: fix deadlock on shared proxy's parent removal

Commit 710abda58055 ("gpio: shared: call gpio_chip::of_xlate() if set")

used the mutex embedded in struct gpio_shared_entry to protect the

offset field which now can be modified after assignment. The critical

section however is too wide and introduced a potential deadlock on the

removal of the shared GPIO proxy's parent.

Make the critical section shorter - only protect the offset when it's

being read.

While at it: mention the fact that the entry lock is now also used to

protect against concurrent access to the offset field in the structure's

documentation.

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/a1b836607304f71051f9f9dcccf8b5097b86a1fbRefgit.kernel.org/stable/c/a554dfcd30dd5e41d1d67387b3bb85cea83e12e1

How CyberStrike helps

Frequently asked questions

What is CVE-2026-64238?

CVE-2026-64238 is a medium-severity vulnerability. It was published on July 24, 2026 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-64238?

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-2026-64238?

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-2026-64238?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-64238 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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