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/vax | |
| parent | 686c4b6f344a5a27aa0ff9967507d7d8aea15be1 (diff) | |
check for lp->d_secpercyl == 0) in bounds_check_with_label()
Diffstat (limited to 'sys/arch/vax')
| -rw-r--r-- | sys/arch/vax/vax/disksubr.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/sys/arch/vax/vax/disksubr.c b/sys/arch/vax/vax/disksubr.c index f9f998e24c4..9b82f3cf8b1 100644 --- a/sys/arch/vax/vax/disksubr.c +++ b/sys/arch/vax/vax/disksubr.c @@ -1,4 +1,4 @@ -/* $OpenBSD: disksubr.c,v 1.10 1998/10/03 21:18:56 millert Exp $ */ +/* $OpenBSD: disksubr.c,v 1.11 1999/01/08 04:29:10 millert Exp $ */ /* $NetBSD: disksubr.c,v 1.13 1997/07/06 22:38:26 ragge Exp $ */ /* @@ -73,6 +73,12 @@ bounds_check_with_label(bp, lp, osdep, wlabel) LABELSECTOR; int sz = howmany(bp->b_bcount, DEV_BSIZE); + /* avoid division by zero */ + if (lp->d_secpercyl == 0) { + bp->b_error = EINVAL; + goto bad; + } + /* overwriting disk label ? */ if (bp->b_blkno + p->p_offset <= labelsect && #if LABELSECTOR != 0 |