diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 50f3f8f8a59b3bba58fad607db386a6d9c94774d..1ee4fa17c12959a14c835663abdb81ce349f8de4 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1543,7 +1543,7 @@ static int fib6_net_init(struct net *net)
 static void fib6_net_exit(struct net *net)
 {
 	rt6_ifdown(net, NULL);
-	del_timer(net->ipv6.ip6_fib_timer);
+	del_timer_sync(net->ipv6.ip6_fib_timer);
 	kfree(net->ipv6.ip6_fib_timer);
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
 	kfree(net->ipv6.fib6_local_tbl);