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xfs: scrub inode nsec fields

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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>
This commit is contained in:
Darrick J. Wong 2018-01-08 10:41:35 -08:00
parent 8e63083762
commit 29c1c123a3
1 changed files with 10 additions and 0 deletions
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10
fs/xfs/scrub/inode.c
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@ -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);