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authorIngo Molnar <mingo@elte.hu>2008-06-25 12:30:10 +0200
committerIngo Molnar <mingo@elte.hu>2008-06-25 12:30:10 +0200
commit28f73e51d0f64a5b896ad816ab8df6f3bcec5810 (patch)
tree8c51ad5ff74d6ef5d1d68121c9f9aadce836736e /net/ipv6/ip6_input.c
parentf3f3149f35b9195ef4b761b1353fc0766b5f53be (diff)
parent543cf4cb3fe6f6cae3651ba918b9c56200b257d0 (diff)
Merge branch 'linus' into x86/delaytip-x86-delay-2008-06-25_10.30_Wed
Conflicts: arch/x86/kernel/tsc_32.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'net/ipv6/ip6_input.c')
-rw-r--r--net/ipv6/ip6_input.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ipv6/ip6_input.c b/net/ipv6/ip6_input.c
index 4e5c8615832c..17eb48b8e329 100644
--- a/net/ipv6/ip6_input.c
+++ b/net/ipv6/ip6_input.c
@@ -102,6 +102,15 @@ int ipv6_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt
if (hdr->version != 6)
goto err;
+ /*
+ * RFC4291 2.5.3
+ * A packet received on an interface with a destination address
+ * of loopback must be dropped.
+ */
+ if (!(dev->flags & IFF_LOOPBACK) &&
+ ipv6_addr_loopback(&hdr->daddr))
+ goto err;
+
skb->transport_header = skb->network_header + sizeof(*hdr);
IP6CB(skb)->nhoff = offsetof(struct ipv6hdr, nexthdr);