CVE-2026-80529 xfs: don't swallow dquot recovery verification errors

Not scored Published 26 Aug 2026 Updated 26 Aug 2026

Exploited in the wild: Not known
Fix: Available

What is CVE-2026-80529?

CVE-2026-80529 is a vulnerability in Linux, published on 26 Aug 2026.

Official description

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

xfs: don't swallow dquot recovery verification errors

xlog_recover_dquot_commit_pass2() validates the recovered dquot with xfs_dqblk_verify() and, on failure, sets error = -EFSCORRUPTED and jumps to out_release. But out_release unconditionally returns 0, so the corruption error is discarded: the caller xlog_recover_items_pass2() sees success, log recovery proceeds as if the dquot were valid, and the corrupt quota buffer can be written back to disk.

Which versions are affected by CVE-2026-80529?

How do I fix CVE-2026-80529?

Upgrade to a fixed version.

Is CVE-2026-80529 being exploited?

There is no known exploitation of CVE-2026-80529 in the wild and no public exploit code.

Sources

Also known as AZL-97811, BELL-CVE-2026-80529, DEBIAN-CVE-2026-80529, UBUNTU-CVE-2026-80529.