diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 84c1db6254d5a6d4c15089202c21cb36ec08e43b..8e373876924f7dd3669f91ff17b6dc6bd8c24e01 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -146,6 +146,9 @@ static void xfrm_hash_resize(struct work_struct *work)
 	spin_unlock_bh(&net->xfrm.xfrm_state_lock);
 
 	osize = (ohashmask + 1) * sizeof(struct hlist_head);
+
+	synchronize_rcu();
+
 	xfrm_hash_free(odst, osize);
 	xfrm_hash_free(osrc, osize);
 	xfrm_hash_free(ospi, osize);
@@ -369,6 +372,8 @@ static void xfrm_state_gc_task(struct work_struct *work)
 	hlist_move_list(&net->xfrm.state_gc_list, &gc_list);
 	spin_unlock_bh(&xfrm_state_gc_lock);
 
+	synchronize_rcu();
+
 	hlist_for_each_entry_safe(x, tmp, &gc_list, gclist)
 		xfrm_state_gc_destroy(x);
 }