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-rw-r--r--net/ipv6/ip6_output.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index dae1949019d..95703ba2c08 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -381,9 +381,8 @@ int ip6_forward(struct sk_buff *skb)
* cannot be fragmented, because there is no warranty
* that different fragments will go along one path. --ANK
*/
- if (opt->ra) {
- u8 *ptr = skb_network_header(skb) + opt->ra;
- if (ip6_call_ra_chain(skb, (ptr[2]<<8) + ptr[3]))
+ if (unlikely(opt->flags & IP6SKB_ROUTERALERT)) {
+ if (ip6_call_ra_chain(skb, ntohs(opt->ra)))
return 0;
}