diff --git a/[refs] b/[refs]
index b9a8670fae5e..6071fbce2600 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8d6d840683228ebded898a865657394981c82aaa
+refs/heads/master: 79ffef1fe213851f44bfccf037170a140e929f85
diff --git a/trunk/include/net/tcp.h b/trunk/include/net/tcp.h
index 23f2e98d4b65..cf0694d4ad60 100644
--- a/trunk/include/net/tcp.h
+++ b/trunk/include/net/tcp.h
@@ -1045,6 +1045,10 @@ static inline bool tcp_prequeue(struct sock *sk, struct sk_buff *skb)
 	if (sysctl_tcp_low_latency || !tp->ucopy.task)
 		return false;
 
+	if (skb->len <= tcp_hdrlen(skb) &&
+	    skb_queue_len(&tp->ucopy.prequeue) == 0)
+		return false;
+
 	__skb_queue_tail(&tp->ucopy.prequeue, skb);
 	tp->ucopy.memory += skb->truesize;
 	if (tp->ucopy.memory > sk->sk_rcvbuf) {