From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Check that the nanosecond fields in each timestamp aren't larger
than a billion.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/scrub/inode.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/fs/xfs/scrub/inode.c b/fs/xfs/scrub/inode.c
index 637b7a8..fc9bc59 100644
--- a/fs/xfs/scrub/inode.c
+++ b/fs/xfs/scrub/inode.c
@@ -380,6 +380,14 @@ 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
@@ -483,6 +491,8 @@ 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);
--
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