From 29c1c123a3f84e31005b86eb852d935daacbacdf Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Mon, 8 Jan 2018 10:41:35 -0800 Subject: [PATCH] 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 Reviewed-by: Dave Chinner --- 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 f120fb20452f..2be4b259477a 100644 --- a/fs/xfs/scrub/inode.c +++ b/fs/xfs/scrub/inode.c @@ -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); -- 2.20.1