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CVE-2022-49425

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix dereference of stale list iterator after loop body The list iterator variable will be a bogus pointer if no break was…

Published Feb 26, 2025CWE-476EPSS 0.28%

Overview

CVE-2022-49425 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. 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:

f2fs: fix dereference of stale list iterator after loop body

The list iterator variable will be a bogus pointer if no break was hit.

Dereferencing it (cur->page in this case) could load an out-of-bounds/undefined

value making it unsafe to use that in the comparision to determine if the

specific element was found.

Since 'cur->page' *can* be out-ouf-bounds it cannot be guaranteed that

by chance (or intention of an attacker) it matches the value of 'page'

even though the correct element was not found.

This is fixed by using a separate list iterator variable for the loop

and only setting the original variable if a suitable element was found.

Then determing if the element was found is simply checking if the

variable is set.

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/2aaf51dd39afb6d01d13f1e6fe20b684733b37d5Refgit.kernel.org/stable/c/385edd3ce5b4b1e9d31f474a5e35a39779ec1110Refgit.kernel.org/stable/c/45b2b7d7108ae1e25a5036cab04ab9273e792332Refgit.kernel.org/stable/c/51d584704d18e60fa473823654f35611c777b291Refgit.kernel.org/stable/c/5e47a7add3dda7f236548c5ec3017776dc2a729fRefgit.kernel.org/stable/c/b26e1c777890e4b938136deb8ec07a29f33862e4Refgit.kernel.org/stable/c/ed7efc472c00986dcd6903ab6ed165c7fa167674

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49425?

CVE-2022-49425 is a high-severity vulnerability. It was published on February 26, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2022-49425?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-49425?

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-2022-49425?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49425 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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