CVE-2026-80804
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 versions
Linux kernel versions
7.0
and later are affected. Fixed in
7.1.11,
7.2.1,
7.3
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2026-80804?
CVE-2026-80804 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 7.0 onward and has been patched in 7.1.11, 7.2.1 and 7.3. CVE-2026-80804 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-80804?
Yes. CVE-2026-80804 has been patched. Fixed versions include 7.1.11, 7.2.1 and 7.3. If you are running Linux kernel 7.0 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-80804 actively exploited?
No. CVE-2026-80804 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.