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xfs: scrub inode mode properly

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Since we've used up all the bits in i_mode, the existing mode check
doesn't actually do anything useful.  However, we've not used all the
bit values in the format portion of i_mode, so we /do/ need to test
that for bad values.

Fixes: 80e4e1268 ("xfs: scrub inodes")
Fixes-coverity-id: 1423992
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Darrick J. Wong 2017-11-27 21:40:19 -08:00
parent 2d5f4b5beb
commit 3b42d38575
1 changed files with 13 additions and 1 deletions
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14
fs/xfs/scrub/inode.c
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@ -318,8 +318,20 @@ xfs_scrub_dinode(
/* di_mode */
mode = be16_to_cpu(dip->di_mode);
if (mode & ~(S_IALLUGO | S_IFMT))
switch (mode & S_IFMT) {
case S_IFLNK:
case S_IFREG:
case S_IFDIR:
case S_IFCHR:
case S_IFBLK:
case S_IFIFO:
case S_IFSOCK:
/* mode is recognized */
break;
default:
xfs_scrub_ino_set_corrupt(sc, ino, bp);
break;
}
/* v1/v2 fields */
switch (dip->di_version) {