What’s Vulnerable › Vulnerabilities

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

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-26 · updated 2026-08-26

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.

Affected products

• Linux kernel: from 6.1.128 before 6.1.184; from 6.6.17 before 6.6.153; 6.7 — fixed in 6.1.184, 6.6.153, 7.2

How to fix

Upgrade to a fixed version: Linux kernel 6.1.184, 6.6.153, 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/36a31b12540c0a0a3b77a01fda86de646f2961fb
• https://git.kernel.org/stable/c/38a4dbe588bd028a07a77dc5cee62ee3ce21e87d
• https://git.kernel.org/stable/c/5b756fbb60b5d26063f46a11a3c7daa7eb616d79
• https://git.kernel.org/stable/c/a233b3362a3c7bf23f5143b4ef4b17ec337fcb4d
• https://git.kernel.org/stable/c/e2b4a856085e9bd939bde2dee0d08b1d41babde9
• https://git.kernel.org/stable/c/e506e127fcb4e2bad1045805f1740b395eea9618

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