1 files changed, 2 insertions, 1 deletions

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 49c890386ce9..26175bffbaa0 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -877,7 +877,8 @@ static void tcp_v6_send_response(struct sk_buff *skb, u32 seq, u32 ack, u32 win,
         __tcp_v6_send_check(buff, &fl6.saddr, &fl6.daddr);
 
         fl6.flowi6_proto = IPPROTO_TCP;
-        fl6.flowi6_oif = inet6_iif(skb);
+        if (ipv6_addr_type(&fl6.daddr) & IPV6_ADDR_LINKLOCAL)
+                fl6.flowi6_oif = inet6_iif(skb);
         fl6.fl6_dport = t1->dest;
         fl6.fl6_sport = t1->source;
         security_skb_classify_flow(skb, flowi6_to_flowi(&fl6));