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CVE-2026-46187

4.7 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: fix kthread lifetime race between self-exit and external-stop RSI driver use both self-exit(kthread_complete_and_exi…

Published May 28, 2026CWE-362EPSS 0.11%

Overview

CVE-2026-46187 is a medium-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 4.7, 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:

wifi: rsi: fix kthread lifetime race between self-exit and external-stop

RSI driver use both self-exit(kthread_complete_and_exit) and external-stop

(kthread_stop) when killing a kthread. Generally, kthread_stop() is called

first, and in this case, no particular issues occur.

However, in rare instances where kthread_complete_and_exit() is called

first and then kthread_stop() is called, a UAF occurs because the kthread

object, which has already exited and been freed, is accessed again.

Therefore, to prevent this with minimal modification, you must remove

kthread_stop() and change the code to wait until the self-exit operation

is completed.

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/16d9f674c619838bdeae42abc0929c9c5477ea1fRefgit.kernel.org/stable/c/4ac3095da22fc50e51ec10c3b8323c21ab3e441aRefgit.kernel.org/stable/c/4f4c9b13c485abd0a2d2c97f9db339d1dd8e147fRefgit.kernel.org/stable/c/4f697813162d5f9151726a6d2bee82bffe4b0256Refgit.kernel.org/stable/c/4f9a4ae8d2c198f01611ea376034c326ef43ab56Refgit.kernel.org/stable/c/95fcb436586dc3c2983537d557ac05bbc6a027f3Refgit.kernel.org/stable/c/9dfe8a4458a063c6433526bc59112a169eee1aa3Refgit.kernel.org/stable/c/db57a1aa54ff68669781976e4edb045e09e2b65b

How CyberStrike helps

Frequently asked questions

What is CVE-2026-46187?

CVE-2026-46187 is a medium-severity vulnerability. It was published on May 28, 2026 and has a CVSS 3.1 base score of 4.7 (MEDIUM).

How severe is CVE-2026-46187?

This vulnerability has a CVSS 3.1 base score of 4.7, 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-2026-46187?

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-2026-46187?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-46187 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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