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CVE-2022-49413

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: bfq: Update cgroup information before merging bio When the process is migrated to a different cgroup (or in case of writeback j…

Published Feb 26, 2025CWE-416EPSS 0.29%

Overview

CVE-2022-49413 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:

bfq: Update cgroup information before merging bio

When the process is migrated to a different cgroup (or in case of

writeback just starts submitting bios associated with a different

cgroup) bfq_merge_bio() can operate with stale cgroup information in

bic. Thus the bio can be merged to a request from a different cgroup or

it can result in merging of bfqqs for different cgroups or bfqqs of

already dead cgroups and causing possible use-after-free issues. Fix the

problem by updating cgroup information in bfq_merge_bio().

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/2a1077f17169a6059992a0bbdb330e0abad1e6d9Refgit.kernel.org/stable/c/b06691af08b41dfd81052a3362514d9827b44bb1Refgit.kernel.org/stable/c/d9165200c5627a2cf4408eefabdf0058bdf95e1aRefgit.kernel.org/stable/c/da9f3025d595956410ceaab2bea01980d7775948Refgit.kernel.org/stable/c/e8821f45612f2e6d9adb9c6ba0fb4184f57692aaRefgit.kernel.org/stable/c/ea591cd4eb270393810e7be01feb8fde6a34fbbe

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49413?

CVE-2022-49413 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-2022-49413?

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-2022-49413?

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-2022-49413?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49413 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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