CVE-2026-80804

/// Technical 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.

/// 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