diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 711bf63dc026d9cfe62a84a193b4e804950b796e..11f3f8e23a8a9f449fef00091e29a0b91c3b6f6e 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -1620,6 +1620,8 @@ static struct sk_buff *tcp_shift_skb_data(struct sock *sk, struct sk_buff *skb,
 	    (mss != tcp_skb_seglen(skb)))
 		goto out;
 
+	if (!tcp_skb_can_collapse(prev, skb))
+		goto out;
 	len = skb->len;
 	pcount = tcp_skb_pcount(skb);
 	if (tcp_skb_shift(prev, skb, pcount, len))