static int dev_get_valid_name(struct net_device *dev, const char *name, bool fmt)
{
	struct net *net;

	BUG_ON(!dev_net(dev));
	net = dev_net(dev);

	if (!dev_valid_name(name))
		return -EINVAL;

	if (fmt && strchr(name, '%'))
		return dev_alloc_name(dev, name);
	else if (__dev_get_by_name(net, name))
		return -EEXIST;
	else if (dev->name != name)
		strlcpy(dev->name, name, IFNAMSIZ);

	return 0;
}

This category addresses vulnerabilities caused by flawed access control mechanisms, where incorrect permission settings allow unauthorized users to access restricted resources.