diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 9603f6ff17a4..737092ca9b4e 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -4560,6 +4560,7 @@ static int __net_init packet_net_init(struct net *net)
 static void __net_exit packet_net_exit(struct net *net)
 {
 	remove_proc_entry("packet", net->proc_net);
+	WARN_ON_ONCE(!hlist_empty(&net->packet.sklist));
 }
 
 static struct pernet_operations packet_net_ops = {