What’s Vulnerable › Vulnerabilities

CVE-2026-80804: xfs: restore nofs context unconditionally in xfs_trans_roll

• 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: 2026-09-04 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: xfs: restore nofs context unconditionally in xfs_trans_roll When __xfs_trans_commit() fails in xfs_trans_roll(), the NOFS context is cleared but only restored in the success path. This leaves the error path without nofs protection, causing a circular lock dependency between xfs_nondir_ilock_class and fs_reclaim: CPU0 CPU1 ---- ---- lock(&xfs_nondir_ilock_class); lock(fs_reclaim); lock(&xfs_nondir_ilock_class); lock(fs_reclaim); Fix this by moving xfs_trans_set_context() before the error check so that nofs context is always restored on the new transaction.

Affected products

• Linux kernel: 7.0 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0241ea5fb0fe86d2a673163b2f5815111aadc7f7
• https://git.kernel.org/stable/c/4d00a39c676274f4071b467e630565ac1e3ae0f2
• https://git.kernel.org/stable/c/b09198cf90ccf296970b774beea1c1ddb260f94c

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