--- zzzz-none-000/linux-5.4.213/net/core/flow_dissector.c	2022-09-15 10:04:56.000000000 +0000
+++ alder-5690pro-762/linux-5.4.213/net/core/flow_dissector.c	2024-08-14 09:02:13.000000000 +0000
@@ -1354,9 +1354,10 @@
 		break;
 	}
 
-	if (!(key_control->flags & FLOW_DIS_IS_FRAGMENT))
+	if (!(key_control->flags & FLOW_DIS_IS_FRAGMENT) || (key_control->flags & FLOW_DIS_FIRST_FRAG)) {
 		__skb_flow_dissect_ports(skb, flow_dissector, target_container,
 					 data, nhoff, ip_proto, hlen);
+	}
 
 	if (dissector_uses_key(flow_dissector,
 			       FLOW_DISSECTOR_KEY_ICMP)) {