static int wdm_suspend(struct usb_interface *intf, pm_message_t message)
{
	struct wdm_device *desc = wdm_find_device(intf);
	int rv = 0;

	dev_dbg(&desc->intf->dev, "wdm%d_suspend\n", intf->minor);

	/* if this is an autosuspend the caller does the locking */
	if (!PMSG_IS_AUTO(message)) {
		mutex_lock(&desc->rlock);
		mutex_lock(&desc->wlock);
	}
	spin_lock_irq(&desc->iuspin);

	if (PMSG_IS_AUTO(message) &&
			(test_bit(WDM_IN_USE, &desc->flags)
			|| test_bit(WDM_RESPONDING, &desc->flags))) {
		spin_unlock_irq(&desc->iuspin);
		rv = -EBUSY;
	} else {

		set_bit(WDM_SUSPENDING, &desc->flags);
		spin_unlock_irq(&desc->iuspin);
		/* callback submits work - order is essential */
		kill_urbs(desc);
		cancel_work_sync(&desc->rxwork);
	}
	if (!PMSG_IS_AUTO(message)) {
		mutex_unlock(&desc->wlock);
		mutex_unlock(&desc->rlock);
	}

	return rv;
}

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.