diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 5deda8e..4dd458a 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -3900,7 +3900,7 @@
 		 * ambient value.
 		 */
 		rcu_read_lock();
-		list_for_each_entry(skp, &smack_known_list, list) {
+		list_for_each_entry_rcu(skp, &smack_known_list, list) {
 			if (sap->attr.mls.lvl != skp->smk_netlabel.attr.mls.lvl)
 				continue;
 			/*