diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index d68199d9b2b01faf7a5272862b7cd8658f08c8ae..a7aea2048a0d7a624ceb79923d25e9750ec6fa9a 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -888,7 +888,8 @@ static int __ip_append_data(struct sock *sk,
 	cork->length += length;
 	if (((length > mtu) || (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
-	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len) {
+	    (rt->dst.dev->features & NETIF_F_UFO) && !rt->dst.header_len &&
+	    (sk->sk_type == SOCK_DGRAM)) {
 		err = ip_ufo_append_data(sk, queue, getfrag, from, length,
 					 hh_len, fragheaderlen, transhdrlen,
 					 maxfraglen, flags);
diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 7deebf102cbafc276f45e4eaffdd8efdb658d842..0a04a37305d5ab56d0f24cc3b3f917386cb62bd8 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -1298,7 +1298,8 @@ static int __ip6_append_data(struct sock *sk,
 	if (((length > mtu) ||
 	     (skb && skb_is_gso(skb))) &&
 	    (sk->sk_protocol == IPPROTO_UDP) &&
-	    (rt->dst.dev->features & NETIF_F_UFO)) {
+	    (rt->dst.dev->features & NETIF_F_UFO) &&
+	    (sk->sk_type == SOCK_DGRAM)) {
 		err = ip6_ufo_append_data(sk, queue, getfrag, from, length,
 					  hh_len, fragheaderlen,
 					  transhdrlen, mtu, flags, rt);