xfs: scrub inode nsec fields
Check that the nanosecond fields in each timestamp aren't larger
than a billion.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index f120fb2..2be4b25 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -392,6 +392,14 @@
break;
}
+ /* di_[amc]time.nsec */
+ if (be32_to_cpu(dip->di_atime.t_nsec) >= NSEC_PER_SEC)
+ xfs_scrub_ino_set_corrupt(sc, ino, bp);
+ if (be32_to_cpu(dip->di_mtime.t_nsec) >= NSEC_PER_SEC)
+ xfs_scrub_ino_set_corrupt(sc, ino, bp);
+ if (be32_to_cpu(dip->di_ctime.t_nsec) >= NSEC_PER_SEC)
+ xfs_scrub_ino_set_corrupt(sc, ino, bp);
+
/*
* di_size. xfs_dinode_verify checks for things that screw up
* the VFS such as the upper bit being set and zero-length
@@ -495,6 +503,8 @@
}
if (dip->di_version >= 3) {
+ if (be32_to_cpu(dip->di_crtime.t_nsec) >= NSEC_PER_SEC)
+ xfs_scrub_ino_set_corrupt(sc, ino, bp);
xfs_scrub_inode_flags2(sc, bp, dip, ino, mode, flags, flags2);
xfs_scrub_inode_cowextsize(sc, bp, dip, ino, mode, flags,
flags2);