void usb_disable_device(struct usb_device *dev, int skip_ep0)
{
	int i;
	struct usb_hcd *hcd = bus_to_hcd(dev->bus);

	/* getting rid of interfaces will disconnect
	 * any drivers bound to them (a key side effect)
	 */
	if (dev->actconfig) {
		/*
		 * FIXME: In order to avoid self-deadlock involving the
		 * bandwidth_mutex, we have to mark all the interfaces
		 * before unregistering any of them.
		 */
		for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++)
			dev->actconfig->interface[i]->unregistering = 1;

		for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
			struct usb_interface	*interface;

			/* remove this interface if it has been registered */
			interface = dev->actconfig->interface[i];
			if (!device_is_registered(&interface->dev))
				continue;
			dev_dbg(&dev->dev, "unregistering interface %s\n",
				dev_name(&interface->dev));
			remove_intf_ep_devs(interface);
			device_del(&interface->dev);
		}

		/* Now that the interfaces are unbound, nobody should
		 * try to access them.
		 */
		for (i = 0; i < dev->actconfig->desc.bNumInterfaces; i++) {
			put_device(&dev->actconfig->interface[i]->dev);
			dev->actconfig->interface[i] = NULL;
		}

		if (dev->usb2_hw_lpm_enabled == 1)
			usb_set_usb2_hardware_lpm(dev, 0);
		usb_unlocked_disable_lpm(dev);
		usb_disable_ltm(dev);

		dev->actconfig = NULL;
		if (dev->state == USB_STATE_CONFIGURED)
			usb_set_device_state(dev, USB_STATE_ADDRESS);
	}

	dev_dbg(&dev->dev, "%s nuking %s URBs\n", __func__,
		skip_ep0 ? "non-ep0" : "all");
	if (hcd->driver->check_bandwidth) {
		/* First pass: Cancel URBs, leave endpoint pointers intact. */
		for (i = skip_ep0; i < 16; ++i) {
			usb_disable_endpoint(dev, i, false);
			usb_disable_endpoint(dev, i + USB_DIR_IN, false);
		}
		/* Remove endpoints from the host controller internal state */
		mutex_lock(hcd->bandwidth_mutex);
		usb_hcd_alloc_bandwidth(dev, NULL, NULL, NULL);
		mutex_unlock(hcd->bandwidth_mutex);
		/* Second pass: remove endpoint pointers */
	}
	for (i = skip_ep0; i < 16; ++i) {
		usb_disable_endpoint(dev, i, true);
		usb_disable_endpoint(dev, i + USB_DIR_IN, true);
	}
}

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.