diff --git a/net/ipv4/ipvs/ip_vs_ctl.c b/net/ipv4/ipvs/ip_vs_ctl.c
index b3050a6817e7af88ed58b7213ee342b4c6f9f1bd..342e836677a1e7b6377e3ac0971233a5a2df57b5 100644
--- a/net/ipv4/ipvs/ip_vs_ctl.c
+++ b/net/ipv4/ipvs/ip_vs_ctl.c
@@ -2387,6 +2387,7 @@ void ip_vs_control_cleanup(void)
 	EnterFunction(2);
 	ip_vs_trash_cleanup();
 	cancel_rearming_delayed_work(&defense_work);
+	flush_work_keventd(&defense_work.work);
 	ip_vs_kill_estimator(&ip_vs_stats);
 	unregister_sysctl_table(sysctl_header);
 	proc_net_remove("ip_vs_stats");