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authorMark Brown <broonie@opensource.wolfsonmicro.com>2011-11-28 11:49:56 +0000
committerMark Brown <broonie@opensource.wolfsonmicro.com>2011-11-28 11:49:56 +0000
commit9ee4be4156b1a507f199e750ba2c13ffb6ea9b42 (patch)
treec92cb39ad1f0be559390c2a995d9aad2b0300b14 /net/ipv6/ip6_input.c
parent005d610f2abc550172726b997f5cfe683769cc1c (diff)
parentd4d6373c1109b11c8118340be97ae31b8f94d66a (diff)
Merge remote-tracking branch 'regulator/for-linus' into regulator-next
Diffstat (limited to 'net/ipv6/ip6_input.c')
-rw-r--r--net/ipv6/ip6_input.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 027c7ff6f1e..a46c64eb0a6 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -111,6 +111,14 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
ipv6_addr_loopback(&hdr->daddr))
goto err;
+ /*
+ * RFC4291 2.7
+ * Multicast addresses must not be used as source addresses in IPv6
+ * packets or appear in any Routing header.
+ */
+ if (ipv6_addr_is_multicast(&hdr->saddr))
+ goto err;
+
skb->transport_header = skb->network_header + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);