---

yaml --- r: 352401 b: refs/heads/master c: 2031409 h: refs/heads/master i: 352399: f703788 v: v3
git-mirror · Feb 11, 2013 · 5e88e89 · 5e88e89
1 parent a9b8158
commit 5e88e89
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dd40851521361e07c1f61e79cca941a63ad311bc
+refs/heads/master: 20314092c1b41894d8c181bf9aa6f022be2416aa
diff --git a/trunk/net/ipv6/ip6_input.c b/trunk/net/ipv6/ip6_input.c
@@ -118,6 +118,15 @@ 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
+	 * Nodes must not originate a packet to a multicast address whose scope
+	 * field contains the reserved value 0; if such a packet is received, it
+	 * must be silently dropped.
+	 */
+	if (ipv6_addr_is_multicast(&hdr->daddr) &&
+	    IPV6_ADDR_MC_SCOPE(&hdr->daddr) == 0)
+		goto err;
+
 	/*
 	 * RFC4291 2.7
 	 * Multicast addresses must not be used as source addresses in IPv6