X-Git-Url: http://git.cascardo.info/?a=blobdiff_plain;f=net%2Fipv6%2Fdatagram.c;h=c215be70cac08af78953ea860c5d67cf9d3fa642;hb=49ca0d8bfaf3bc46d5eef60ce67b00eb195bd392;hp=100c589a2a6cf951bdb8a7a2e56b087fb4fe56bf;hpb=bac22980b008ed810c56054d7f8bd73c02326b3f;p=cascardo%2Flinux.git

diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 100c589a2a6c..c215be70cac0 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -369,7 +369,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 
 	serr = SKB_EXT_ERR(skb);
 
-	if (sin) {
+	if (sin && skb->len) {
 		const unsigned char *nh = skb_network_header(skb);
 		sin->sin6_family = AF_INET6;
 		sin->sin6_flowinfo = 0;
@@ -393,11 +393,9 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 
 	memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err));
 	sin = &errhdr.offender;
-	sin->sin6_family = AF_UNSPEC;
-	if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
+	memset(sin, 0, sizeof(*sin));
+	if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL && skb->len) {
 		sin->sin6_family = AF_INET6;
-		sin->sin6_flowinfo = 0;
-		sin->sin6_port = 0;
 		if (np->rxopt.all) {
 			if (serr->ee.ee_origin != SO_EE_ORIGIN_ICMP &&
 			    serr->ee.ee_origin != SO_EE_ORIGIN_ICMP6)
@@ -412,12 +410,9 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 				ipv6_iface_scope_id(&sin->sin6_addr,
 						    IP6CB(skb)->iif);
 		} else {
-			struct inet_sock *inet = inet_sk(sk);
-
 			ipv6_addr_set_v4mapped(ip_hdr(skb)->saddr,
 					       &sin->sin6_addr);
-			sin->sin6_scope_id = 0;
-			if (inet->cmsg_flags)
+			if (inet_sk(sk)->cmsg_flags)
 				ip_cmsg_recv(msg, skb);
 		}
 	}