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CVE-2022-49912

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: btrfs: fix ulist leaks in error paths of qgroup self tests In the test_no_shared_qgroup() and test_multiple_refs() qgroup self…

Published May 1, 2025CWE-401EPSS 0.20%

Overview

CVE-2022-49912 is a medium-severity vulnerability. It was published on May 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:

btrfs: fix ulist leaks in error paths of qgroup self tests

In the test_no_shared_qgroup() and test_multiple_refs() qgroup self tests,

if we fail to add the tree ref, remove the extent item or remove the

extent ref, we are returning from the test function without freeing the

"old_roots" ulist that was allocated by the previous calls to

btrfs_find_all_roots(). Fix that by calling ulist_free() before returning.

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/0a0dead4ad1a2e2a9bdf133ef45111d7c8daef84Refgit.kernel.org/stable/c/203204798831c35d855ecc6417d98267d2d2184bRefgit.kernel.org/stable/c/3f58283d83a588ff5da62fc150de19e798ed2ec2Refgit.kernel.org/stable/c/5d1a47ebf84540e40b5b43fc21aef0d6c0f627d9Refgit.kernel.org/stable/c/d37de92b38932d40e4a251e876cc388f9aee5f42Refgit.kernel.org/stable/c/d81370396025cf63a7a1b5f8bb25a3479203b2caRefgit.kernel.org/stable/c/da7003434bcab0ae9aba3f2c003e734cae093326Refgit.kernel.org/stable/c/f46ea5fa3320dca4fe0c0926b49a5f14cb85de62

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49912?

CVE-2022-49912 is a medium-severity vulnerability. It was published on May 1, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49912?

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-2022-49912?

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-2022-49912?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49912 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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