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CVE-2022-49957

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: kcm: fix strp_init() order and cleanup strp_init() is called just a few lines above this csk->sk_user_data check, it also initi…

Published Jun 18, 2025CWE-908EPSS 0.26%

Overview

CVE-2022-49957 is a medium-severity vulnerability. It was published on June 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:

kcm: fix strp_init() order and cleanup

strp_init() is called just a few lines above this csk->sk_user_data

check, it also initializes strp->work etc., therefore, it is

unnecessary to call strp_done() to cancel the freshly initialized

work.

And if sk_user_data is already used by KCM, psock->strp should not be

touched, particularly strp->work state, so we need to move strp_init()

after the csk->sk_user_data check.

This also makes a lockdep warning reported by syzbot go away.

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/0946ff31d1a8778787bf6708beb20f38715267ccRefgit.kernel.org/stable/c/1b6666964ca1de93a7bf06e122bcf3616dbd33a9Refgit.kernel.org/stable/c/473f394953216614087f4179e55cdf0cf616a13bRefgit.kernel.org/stable/c/55fb8c3baa8071c5d533a9ad48624e44e2a04ef5Refgit.kernel.org/stable/c/8fc29ff3910f3af08a7c40a75d436b5720efe2bfRefgit.kernel.org/stable/c/a8a0c321319ad64a5427d6172cd9c23b4d6ca1e8Refgit.kernel.org/stable/c/f865976baa85915c7672f351b74d5974b93215f6

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49957?

CVE-2022-49957 is a medium-severity vulnerability. It was published on June 18, 2025 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2022-49957?

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-2022-49957?

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-2022-49957?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49957 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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