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CVE-2026-80534

In the Linux kernel, the following vulnerability has been resolved: xfs: fix ilock leak on error in xfs_dq_get_next_id xfs_dq_get_next_id() takes the quota inode ILOCK before calling xfs_iread_ex…

Published Aug 26, 2026EPSS 0.18%

Overview

CVE-2026-80534 is a known-severity vulnerability. It was published on August 26, 2026.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

xfs: fix ilock leak on error in xfs_dq_get_next_id

xfs_dq_get_next_id() takes the quota inode ILOCK before calling

xfs_iread_extents(). If xfs_iread_extents() fails, the function returns

immediately without releasing the lock, leaking the quota inode ILOCK.

This can leave the quota inode locked and cause subsequent quota

operations to hang.

Fix this by jumping to a common unlock path on error instead of returning

directly.

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/0865e4fca02e418fd2423fae9a887dee87b778a1Refgit.kernel.org/stable/c/08bed2b67d2ee79d3e138c344d8dcfa4c9b26a38Refgit.kernel.org/stable/c/514a5d42d4188fc5f1499a8d654c717ebf981193Refgit.kernel.org/stable/c/63320a0f70f66f311f4bccff3af0719c2119f46cRefgit.kernel.org/stable/c/6401b99a285cd4cfb2949ba44675541b91ad7e4fRefgit.kernel.org/stable/c/e270d539b8a2e0cb8f617fee47a7b083c0088361Refgit.kernel.org/stable/c/e4c05ebd01e910bccd4f7e9517c7353982e27763Refgit.kernel.org/stable/c/ed8bfb43de71213cfdbbe833b2c2817250e18b1a

How CyberStrike helps

Frequently asked questions

What is CVE-2026-80534?

CVE-2026-80534 is a known-severity vulnerability. It was published on August 26, 2026.

How severe is CVE-2026-80534?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-80534?

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-2026-80534?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-80534 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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