From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
Make sure the rtbitmap is large enough to store the entire bitmap.
Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/scrub/rtbitmap.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/fs/xfs/scrub/rtbitmap.c b/fs/xfs/scrub/rtbitmap.c
index c777c98c50c3..76e4ffe0315b 100644
--- a/fs/xfs/scrub/rtbitmap.c
+++ b/fs/xfs/scrub/rtbitmap.c
@@ -101,6 +101,13 @@ xchk_rtbitmap(
{
int error;
+ /* Is the size of the rtbitmap correct? */
+ if (sc->mp->m_rbmip->i_d.di_size !=
+ XFS_FSB_TO_B(sc->mp, sc->mp->m_sb.sb_rbmblocks)) {
+ xchk_ino_set_corrupt(sc, sc->mp->m_rbmip->i_ino);
+ return 0;
+ }
+
/* Invoke the fork scrubber. */
error = xchk_metadata_inode_forks(sc);
if (error || (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT))
