diff --git a/kernel/pid.c b/kernel/pid.c
index 0143ac0ddceb9c79a2c686e6b10b7265b7b5d925..fd1cde1e45760df67a6cc54fa97959061660ab3f 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -321,8 +321,10 @@ struct pid *alloc_pid(struct pid_namespace *ns)
 	}
 
 	if (unlikely(is_child_reaper(pid))) {
-		if (pid_ns_prepare_proc(ns))
+		if (pid_ns_prepare_proc(ns)) {
+			disable_pid_allocation(ns);
 			goto out_free;
+		}
 	}
 
 	get_pid_ns(ns);