static int gs_usb_set_identify(struct net_device *netdev, bool do_identify)
{
	struct gs_can *dev = netdev_priv(netdev);
	struct gs_identify_mode imode;
	int rc;

	if (do_identify)
		imode.mode = GS_CAN_IDENTIFY_ON;
	else
		imode.mode = GS_CAN_IDENTIFY_OFF;

	rc = usb_control_msg(interface_to_usbdev(dev->iface),
			     usb_sndctrlpipe(interface_to_usbdev(dev->iface),
					     0),
			     GS_USB_BREQ_IDENTIFY,
			     USB_DIR_OUT | USB_TYPE_VENDOR |
			     USB_RECIP_INTERFACE,
			     dev->channel,
			     0,
			     &imode,
			     sizeof(imode),
			     100);

	return (rc > 0) ? 0 : rc;
}

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.