CVE-2026-80804

Summary

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 Software

Weaknesses

References

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

• ←Previous
• Next→