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CVE-2022-50436

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: ext4: don't set up encryption key during jbd2 transaction Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signatur…

Published Oct 1, 2025EPSS 0.10%

Overview

CVE-2022-50436 is a medium-severity vulnerability. It was published on October 1, 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:

ext4: don't set up encryption key during jbd2 transaction

Commit a80f7fcf1867 ("ext4: fixup ext4_fc_track_* functions' signature")

extended the scope of the transaction in ext4_unlink() too far, making

it include the call to ext4_find_entry(). However, ext4_find_entry()

can deadlock when called from within a transaction because it may need

to set up the directory's encryption key.

Fix this by restoring the transaction to its original scope.

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/1ba993208bcfd691e241483420a2a761d3f15750Refgit.kernel.org/stable/c/206dd3acfb9bca54a25b228c7c7c2257eedde09bRefgit.kernel.org/stable/c/23ad034760dd38e12b0e0e1b28b9629f330810a1Refgit.kernel.org/stable/c/4c0d5778385cb3618ff26a561ce41de2b7d9de70Refgit.kernel.org/stable/c/6220ec405571ded17efedc56587190b542adf246

How CyberStrike helps

Frequently asked questions

What is CVE-2022-50436?

CVE-2022-50436 is a medium-severity vulnerability. It was published on October 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-50436?

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-2022-50436?

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-2022-50436?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-50436 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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