static int uio_major_init(void)
{
	static const char name[] = "uio";
	struct cdev *cdev = NULL;
	dev_t uio_dev = 0;
	int result;

	result = alloc_chrdev_region(&uio_dev, 0, UIO_MAX_DEVICES, name);
	if (result)
		goto out;

	result = -ENOMEM;
	cdev = cdev_alloc();
	if (!cdev)
		goto out_unregister;

	cdev->owner = THIS_MODULE;
	cdev->ops = &uio_fops;
	kobject_set_name(&cdev->kobj, "%s", name);

	result = cdev_add(cdev, uio_dev, UIO_MAX_DEVICES);
	if (result)
		goto out_put;

	uio_major = MAJOR(uio_dev);
	uio_cdev = cdev;
	return 0;
out_put:
	kobject_put(&cdev->kobj);
out_unregister:
	unregister_chrdev_region(uio_dev, UIO_MAX_DEVICES);
out:
	return result;
}

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.