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CVE-2026-31454

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: xfs: save ailp before dropping the AIL lock in push callbacks In xfs_inode_item_push() and xfs_qm_dquot_logitem_push(), the AIL…

Published Apr 22, 2026CWE-416EPSS 0.17%

Overview

CVE-2026-31454 is a high-severity vulnerability. It was published on April 22, 2026 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:

xfs: save ailp before dropping the AIL lock in push callbacks

In xfs_inode_item_push() and xfs_qm_dquot_logitem_push(), the AIL lock

is dropped to perform buffer IO. Once the cluster buffer no longer

protects the log item from reclaim, the log item may be freed by

background reclaim or the dquot shrinker. The subsequent spin_lock()

call dereferences lip->li_ailp, which is a use-after-free.

Fix this by saving the ailp pointer in a local variable while the AIL

lock is held and the log item is guaranteed to be valid.

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/19437e4f7bb909afde832b39372aa2f3ce3cfd88Refgit.kernel.org/stable/c/394d70b86fae9fe865e7e6d9540b7696f73aa9b6Refgit.kernel.org/stable/c/4c7d50147316cf049462f327c4a3e9dc2b7f1dd0Refgit.kernel.org/stable/c/50f5f056807b7bed74f4f307f2ca0ed92f3e556dRefgit.kernel.org/stable/c/6dbe17f19c290a72ce57d5abc70e1fad0c3e14e5Refgit.kernel.org/stable/c/75669e987137f49c99ca44406bf0200d1892dd16Refgit.kernel.org/stable/c/d8fc60bbaf5aea1604bf9f4ed565da6a1ac7a87dRefgit.kernel.org/stable/c/edd1637d4e3911ab6c760f553f2040fe72f61a13

How CyberStrike helps

Frequently asked questions

What is CVE-2026-31454?

CVE-2026-31454 is a high-severity vulnerability. It was published on April 22, 2026 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2026-31454?

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-2026-31454?

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-2026-31454?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-31454 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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