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CVE-2022-50400

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: staging: greybus: audio_helper: remove unused and wrong debugfs usage In the greybus audio_helper code, the debugfs file for th…

Published Sep 18, 2025CWE-401EPSS 0.15%

Overview

CVE-2022-50400 is a medium-severity vulnerability. It was published on September 18, 2025 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:

staging: greybus: audio_helper: remove unused and wrong debugfs usage

In the greybus audio_helper code, the debugfs file for the dapm has the

potential to be removed and memory will be leaked. There is also the

very real potential for this code to remove ALL debugfs entries from the

system, and it seems like this is what will really happen if this code

ever runs. This all is very wrong as the greybus audio driver did not

create this debugfs file, the sound core did and controls the lifespan

of it.

So remove all of the debugfs logic from the audio_helper code as there's

no way it could be correct. If this really is needed, it can come back

with a fixup for the incorrect usage of the debugfs_lookup() call which

is what caused this to be noticed at all.

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/4dab0d27a4211a27135a6899d6c737e6e0759a11Refgit.kernel.org/stable/c/5699afbff1fa2972722e863906c0320d55dd4d58Refgit.kernel.org/stable/c/d0febad83e29d85bb66e4f5cac0115b022403338Refgit.kernel.org/stable/c/d517cdeb904ddc0cbebcc959d43596426cac40b0Refgit.kernel.org/stable/c/d835fa49d9589a780ff0d001bb7e6323238a4afb

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50400?

CVE-2022-50400 is a medium-severity vulnerability. It was published on September 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50400?

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-2022-50400?

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-2022-50400?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50400 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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