diff options
| author | Todd C. Miller <millert@cvs.openbsd.org> | 1999-01-08 04:29:12 +0000 |
|---|---|---|
| committer | Todd C. Miller <millert@cvs.openbsd.org> | 1999-01-08 04:29:12 +0000 |
| commit | 35c2bff255654ea2902e9b996e5711d755659967 (patch) | |
| tree | d3bb71382e3fd610b239be8889b28e5745ff07db /sys/arch/arm32 | |
| parent | 686c4b6f344a5a27aa0ff9967507d7d8aea15be1 (diff) | |
check for lp->d_secpercyl == 0) in bounds_check_with_label()
Diffstat (limited to 'sys/arch/arm32')
| -rw-r--r-- | sys/arch/arm32/arm32/disksubr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sys/arch/arm32/arm32/disksubr.c b/sys/arch/arm32/arm32/disksubr.c index aea222b325a..9cb3ee1f4c0 100644 --- a/sys/arch/arm32/arm32/disksubr.c +++ b/sys/arch/arm32/arm32/disksubr.c @@ -526,6 +526,12 @@ bounds_check_with_label(bp, lp, osdep, wlabel) int labelsector = lp->d_partitions[0].p_offset + LABELSECTOR; int sz; + /* avoid division by zero */ + if (lp->d_secpercyl == 0) { + bp->b_error = EINVAL; + goto bad; + } + sz = howmany(bp->b_bcount, lp->d_secsize); if (bp->b_blkno + sz > p->p_size) { |