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CVE-2022-49334

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: Fix xarray node memory leak If xas_split_alloc() fails to allocate the necessary nodes to complete the xarray e…

Published Feb 26, 2025CWE-401EPSS 0.26%

Overview

CVE-2022-49334 is a medium-severity vulnerability. It was published on February 26, 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:

mm/huge_memory: Fix xarray node memory leak

If xas_split_alloc() fails to allocate the necessary nodes to complete the

xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem()

then interprets as "Please allocate more memory", not as "Please free

any unnecessary memory" (which was the intended outcome). It's confusing

to use xas_nomem() to free memory in this context, so call xas_destroy()

instead.

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/69a37a8ba1b408a1c7616494aa7018e4b3844cbeRefgit.kernel.org/stable/c/95c8181b4947e000f3b9b8e5918d899fce77b93dRefgit.kernel.org/stable/c/c0c84962e297927ba57fd6ddc2bb000c9d149655

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49334?

CVE-2022-49334 is a medium-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49334?

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-2022-49334?

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-2022-49334?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49334 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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