--- zzzz-none-000/linux-4.19.183/net/ipv4/udp.c	2021-03-24 10:07:39.000000000 +0000
+++ bcm63-7530ax-756/linux-4.19.183/net/ipv4/udp.c	2023-06-28 08:54:21.000000000 +0000
@@ -116,6 +116,8 @@
 #include <net/sock_reuseport.h>
 #include <net/addrconf.h>
 
+#include <avm/pa/avm_pa.h>
+
 struct udp_table udp_table __read_mostly;
 EXPORT_SYMBOL(udp_table);
 
@@ -1942,6 +1944,7 @@
 static int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	struct udp_sock *up = udp_sk(sk);
+	struct net *net = dev_net(skb->dev);
 	int is_udplite = IS_UDPLITE(sk);
 
 	/*
@@ -1949,6 +1952,9 @@
 	 */
 	if (!xfrm4_policy_check(sk, XFRM_POLICY_IN, skb))
 		goto drop;
+
+	avm_pa_add_local_session(AVM_PA_NET_IP_DEVINFO(net), skb, sk);
+
 	nf_reset(skb);
 
 	if (static_branch_unlikely(&udp_encap_needed_key) && up->encap_type) {