static int bluebird_fx2_identify_state(struct usb_device *udev,
				       struct dvb_usb_device_properties *props,
				       struct dvb_usb_device_description **desc,
				       int *cold)
{
	int wascold = *cold;

	*cold = udev->descriptor.bDeviceClass == 0xff &&
		udev->descriptor.bDeviceSubClass == 0xff &&
		udev->descriptor.bDeviceProtocol == 0xff;

	if (*cold && !wascold)
		*desc = NULL;

	return 0;
}

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.