diff --git a/src/linux/net/newip/tcp_nip_input.c b/src/linux/net/newip/tcp_nip_input.c
index 0e3b1fffde7b9b0438251a6bcbadbf2ed6448531..4e92daaa967505573eba794ed3fd386333b1a87a 100644
--- a/src/linux/net/newip/tcp_nip_input.c
+++ b/src/linux/net/newip/tcp_nip_input.c
@@ -340,7 +340,15 @@ coalesce_done:
 		goto insert;
 	}
 
-	if (after(seq, TCP_SKB_CB(tp->ooo_last_skb)->seq)) {
+	if (!before(seq, TCP_SKB_CB(tp->ooo_last_skb)->seq)) {
+		if (!after(end_seq, TCP_SKB_CB(tp->ooo_last_skb)->end_seq)) {
+			/* ooo_last_skb->seq <= seq, end_seq <= ooo_last_skb->end_seq */
+			nip_dbg("ooo_last_skb completely overlapping new skb, drop pkt");
+			NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPOFOMERGE);
+			tcp_nip_drop(sk, skb);
+			skb = NULL;
+			goto end;
+		}
 		tcp_nip_left_overlap(skb, tp->ooo_last_skb);
 		if (tcp_nip_ooo_try_coalesce(sk, tp->ooo_last_skb, skb, &fragstolen)) {
 			nip_dbg("ofo skb coalesce ooo_last_skb done");