diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 2546fc9..3b65754 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1237,7 +1237,7 @@
 
 	skb->dev = NULL;
 
-	bh_lock_sock(sk);
+	bh_lock_sock_nested(sk);
 	ret = 0;
 	if (!sock_owned_by_user(sk)) {
 #ifdef CONFIG_NET_DMA