diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 0a0b0a1af769..301d1faacdf2 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3672,7 +3672,7 @@ static void __rbd_lock(struct rbd_device *rbd_dev, const char *cookie)
 	struct rbd_client_id cid = rbd_get_cid(rbd_dev);
 
 	rbd_dev->lock_state = RBD_LOCK_STATE_LOCKED;
-	strcpy(rbd_dev->lock_cookie, cookie);
+	strscpy(rbd_dev->lock_cookie, cookie);
 	rbd_set_owner_cid(rbd_dev, &cid);
 	queue_work(rbd_dev->task_wq, &rbd_dev->acquired_lock_work);
 }