diff options
| author | Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org> | 2004-02-23 05:06:42 +0000 |
|---|---|---|
| committer | Jun-ichiro itojun Hagino <itojun@cvs.openbsd.org> | 2004-02-23 05:06:42 +0000 |
| commit | b50c8dcb2a4dc1bb7ca91d4d930a94a78ca34b0c (patch) | |
| tree | c5e6bbe5a81d36c8d8ffffa05b9e62ebd322a581 /sys/netinet6 | |
| parent | 74d0bc48b2645c03bacf296768bc1481c22e24ea (diff) | |
avoid touching out-of-bound memory if len == 128.
Ted Unangst via Colin Percival
Diffstat (limited to 'sys/netinet6')
| -rw-r--r-- | sys/netinet6/in6.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c index b2e52435a55..74244f1efff 100644 --- a/sys/netinet6/in6.c +++ b/sys/netinet6/in6.c @@ -1,4 +1,4 @@ -/* $OpenBSD: in6.c,v 1.53 2004/01/13 06:28:16 mcbride Exp $ */ +/* $OpenBSD: in6.c,v 1.54 2004/02/23 05:06:41 itojun Exp $ */ /* $KAME: in6.c,v 1.198 2001/07/18 09:12:38 itojun Exp $ */ /* @@ -2203,7 +2203,8 @@ in6_are_prefix_equal(p1, p2, len) if (bcmp(&p1->s6_addr, &p2->s6_addr, bytelen)) return (0); - if (p1->s6_addr[bytelen] >> (8 - bitlen) != + if (bitlen != 0 && + p1->s6_addr[bytelen] >> (8 - bitlen) != p2->s6_addr[bytelen] >> (8 - bitlen)) return (0); |