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CVE-2022-49044

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: dm integrity: fix memory corruption when tag_size is less than digest size It is possible to set up dm-integrity in such a way…

Published Feb 26, 2025CWE-787EPSS 0.28%

Overview

CVE-2022-49044 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:

dm integrity: fix memory corruption when tag_size is less than digest size

It is possible to set up dm-integrity in such a way that the

"tag_size" parameter is less than the actual digest size. In this

situation, a part of the digest beyond tag_size is ignored.

In this case, dm-integrity would write beyond the end of the

ic->recalc_tags array and corrupt memory. The corruption happened in

integrity_recalc->integrity_sector_checksum->crypto_shash_final.

Fix this corruption by increasing the tags array so that it has enough

padding at the end to accomodate the loop in integrity_recalc() being

able to write a full digest size for the last member of the tags

array.

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/08c1af8f1c13bbf210f1760132f4df24d0ed46d6Refgit.kernel.org/stable/c/4d485cf9b609709e45d5113e6e2b1b01254b2fe9Refgit.kernel.org/stable/c/6a95d91c0b315c965198f6ab7dec7c94129e17e0Refgit.kernel.org/stable/c/6b4bf97587ef6c1927a78934b700204920655123Refgit.kernel.org/stable/c/7f84c937222944c03f4615ca4742df6bed0e5adfRefgit.kernel.org/stable/c/cd02b2687d66f0a8e716384de4b9a0671331f1dc

How CyberStrike helps

Frequently asked questions

What is CVE-2022-49044?

CVE-2022-49044 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-2022-49044?

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-2022-49044?

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-2022-49044?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-49044 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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