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Commit 29c1c123 authored by Darrick J. Wong's avatar Darrick J. Wong
Browse files

xfs: scrub inode nsec fields 



Check that the nanosecond fields in each timestamp aren't larger
than a billion.

Signed-off-by: default avatarDarrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: default avatarDave Chinner <dchinner@redhat.com>
parent 8e630837

fs/xfs/scrub/inode.c

+10 −0
Original line number Diff line number Diff line
@@ -392,6 +392,14 @@ xfs_scrub_dinode( 
		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 @@ xfs_scrub_dinode( 
	}



	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);