diff options
| author |   itojun <itojun@openbsd.org> | 2001-04-04 06:03:45 +0000 |
|---|---|---|
| committer | itojun <itojun@openbsd.org> | 2001-04-04 06:03:45 +0000 |
| commit | a78c7ca70843c5b175133e658faa5ee81e55d359 (patch) | |
| tree | 458086d6df280d544930f96eb61c8939d9c9e4e6 | |
| parent | do not check ip_mtudisc on IPv6 TCP. (diff) | |
| download | wireguard-openbsd-a78c7ca70843c5b175133e658faa5ee81e55d359.tar.xz wireguard-openbsd-a78c7ca70843c5b175133e658faa5ee81e55d359.zip | |
make sure rcvif is not bogus, on call to icmp6_reflect.
| -rw-r--r-- | sys/netinet6/icmp6.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c index 3a3612b47ae..99f1df22bf4 100644 --- a/sys/netinet6/icmp6.c +++ b/sys/netinet6/icmp6.c @@ -1,4 +1,4 @@ -/* $OpenBSD: icmp6.c,v 1.38 2001/03/30 11:08:58 itojun Exp $ */ +/* $OpenBSD: icmp6.c,v 1.39 2001/04/04 06:03:45 itojun Exp $ */ /* $KAME: icmp6.c,v 1.205 2001/03/21 07:48:57 itojun Exp $ */ /* @@ -398,6 +398,15 @@ icmp6_error(m, type, code, param) icmp6->icmp6_code = code; icmp6->icmp6_pptr = htonl((u_int32_t)param); + /* + * icmp6_reflect() is designed to be in the input path. + * icmp6_error() can be called from both input and outut path, + * and if we are in output path rcvif could contain bogus value. + * clear m->m_pkthdr.rcvif for safety, we should have enough scope + * information in ip header (nip6). + */ + m->m_pkthdr.rcvif = NULL; + icmp6stat.icp6s_outhist[type]++; icmp6_reflect(m, sizeof(struct ip6_hdr)); /*header order: IPv6 - ICMPv6*/ |