--- zzzz-none-000/linux-4.4.60/net/ipv4/netfilter/arp_tables.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/net/ipv4/netfilter/arp_tables.c	2021-02-04 17:41:59.000000000 +0000
@@ -329,6 +329,10 @@
 			}
 			if (table_base + v
 			    != arpt_next_entry(e)) {
+				if (unlikely(stackidx >= private->stacksize)) {
+					verdict = NF_DROP;
+					break;
+				}
 				jumpstack[stackidx++] = e;
 			}