static int netif_alloc_netdev_queues(struct net_device *dev)
{
	unsigned int count = dev->num_tx_queues;
	struct netdev_queue *tx;
	size_t sz = count * sizeof(*tx);

	if (count < 1 || count > 0xffff)
		return -EINVAL;

	tx = kvzalloc(sz, GFP_KERNEL | __GFP_RETRY_MAYFAIL);
	if (!tx)
		return -ENOMEM;

	dev->_tx = tx;

	netdev_for_each_tx_queue(dev, netdev_init_one_queue, NULL);
	spin_lock_init(&dev->tx_global_lock);

	return 0;
}

The product dereferences a pointer that it expects to be valid but is NULL.