diff --git a/sys/security/mac/mac_inet.c b/sys/security/mac/mac_inet.c
--- a/sys/security/mac/mac_inet.c
+++ b/sys/security/mac/mac_inet.c
@@ -485,6 +485,7 @@
 			MAC_POLICY_PERFORM_NOSLEEP(syncache_destroy_label,
 			    *label);
 			mac_labelzone_free(*label);
+			*label = NULL;
 		}
 		return (error);
 	} else