diff -drupN a/net/dccp/ipv4.c b/net/dccp/ipv4.c
--- a/net/dccp/ipv4.c	2018-08-06 17:23:04.000000000 +0300
+++ b/net/dccp/ipv4.c	2022-06-12 05:28:14.000000000 +0300
@@ -594,13 +594,7 @@ int dccp_v4_conn_request(struct sock *sk
 	if (inet_csk_reqsk_queue_is_full(sk))
 		goto drop;
 
-	/*
-	 * Accept backlog is full. If we have already queued enough
-	 * of warm entries in syn queue, drop request. It is better than
-	 * clogging syn queue with openreqs with exponentially increasing
-	 * timeout.
-	 */
-	if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
+	if (sk_acceptq_is_full(sk))
 		goto drop;
 
 	req = inet_reqsk_alloc(&dccp_request_sock_ops, sk, true);