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authorHannes Frederic Sowa <hannes@stressinduktion.org>2014-01-20 05:16:39 +0100
committerDavid S. Miller <davem@davemloft.net>2014-01-21 16:59:19 -0800
commit82b276cd2b0bacd58e7c307bf8856925a68c4d14 (patch)
treeffc8648efa91f83f81c94ac83447dc5246a835cf /net/ipv6/ping.c
parentipv6: enable anycast addresses as source addresses in ICMPv6 error messages (diff)
downloadlinux-dev-82b276cd2b0bacd58e7c307bf8856925a68c4d14.tar.xz
linux-dev-82b276cd2b0bacd58e7c307bf8856925a68c4d14.zip
ipv6: protect protocols not handling ipv4 from v4 connection/bind attempts
Some ipv6 protocols cannot handle ipv4 addresses, so we must not allow connecting and binding to them. sendmsg logic does already check msg->name for this but must trust already connected sockets which could be set up for connection to ipv4 address family. Per-socket flag ipv6only is of no use here, as it is under users control by setsockopt. Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/ipv6/ping.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 94a3d04c3200..fb9beb78f00b 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -31,7 +31,7 @@ struct proto pingv6_prot = {
.owner = THIS_MODULE,
.init = ping_init_sock,
.close = ping_close,
- .connect = ip6_datagram_connect,
+ .connect = ip6_datagram_connect_v6_only,
.disconnect = udp_disconnect,
.setsockopt = ipv6_setsockopt,
.getsockopt = ipv6_getsockopt,