diff options
| author | Mark Johnston <markj@FreeBSD.org> | 2023-03-13 14:45:56 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2023-03-13 14:45:56 +0000 |
| commit | aa71d6b4a2ec3609303ca87ba75d0a2c539da9df (patch) | |
| tree | 83d99e1efe8f3b69925747bd9a40f44f9292a829 /sys/netinet6 | |
| parent | 29c9b1673305406dc64161aa7b565a296526fa67 (diff) | |
| download | src-aa71d6b4a2ec3609303ca87ba75d0a2c539da9df.tar.gz src-aa71d6b4a2ec3609303ca87ba75d0a2c539da9df.zip | |
Diffstat (limited to 'sys/netinet6')
| -rw-r--r-- | sys/netinet6/icmp6.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sys/netinet6/icmp6.c b/sys/netinet6/icmp6.c index 5c94a0c56be1..4166cabdc5cb 100644 --- a/sys/netinet6/icmp6.c +++ b/sys/netinet6/icmp6.c @@ -1070,6 +1070,14 @@ icmp6_notify_error(struct mbuf **mp, int off, int icmp6len) */ eip6 = (struct ip6_hdr *)(icmp6 + 1); + /* + * Protocol layers can't do anything useful with unspecified + * addresses. + */ + if (IN6_IS_ADDR_UNSPECIFIED(&eip6->ip6_src) || + IN6_IS_ADDR_UNSPECIFIED(&eip6->ip6_dst)) + goto freeit; + icmp6dst.sin6_len = sizeof(struct sockaddr_in6); icmp6dst.sin6_family = AF_INET6; if (IN6_IS_ADDR_UNSPECIFIED(&icmp6dst.sin6_addr)) |