--- zzzz-none-000/linux-4.4.60/net/ipv6/reassembly.c	2017-04-08 07:53:53.000000000 +0000
+++ hawkeye-5590-729/linux-4.4.60/net/ipv6/reassembly.c	2022-03-30 14:21:53.000000000 +0000
@@ -503,6 +503,7 @@
 	IP6_INC_STATS_BH(net, __in6_dev_get(dev), IPSTATS_MIB_REASMOKS);
 	rcu_read_unlock();
 	fq->q.fragments = NULL;
+	fq->q.rb_fragments = RB_ROOT;
 	fq->q.fragments_tail = NULL;
 	return 1;