void ehci_reset(void *opaque)
{
    EHCIState *s = opaque;
    int i;
    USBDevice *devs[NB_PORTS];

    trace_usb_ehci_reset();

    /*
     * Do the detach before touching portsc, so that it correctly gets send to
     * us or to our companion based on PORTSC_POWNER before the reset.
     */
    for(i = 0; i < NB_PORTS; i++) {
        devs[i] = s->ports[i].dev;
        if (devs[i] && devs[i]->attached) {
            usb_detach(&s->ports[i]);
        }
    }

    memset(&s->opreg, 0x00, sizeof(s->opreg));
    memset(&s->portsc, 0x00, sizeof(s->portsc));

    s->usbcmd = NB_MAXINTRATE << USBCMD_ITC_SH;
    s->usbsts = USBSTS_HALT;
    s->usbsts_pending = 0;
    s->usbsts_frindex = 0;

    s->astate = EST_INACTIVE;
    s->pstate = EST_INACTIVE;

    for(i = 0; i < NB_PORTS; i++) {
        if (s->companion_ports[i]) {
            s->portsc[i] = PORTSC_POWNER | PORTSC_PPOWER;
        } else {
            s->portsc[i] = PORTSC_PPOWER;
        }
        if (devs[i] && devs[i]->attached) {
            usb_attach(&s->ports[i]);
            usb_device_reset(devs[i]);
        }
    }
    ehci_queues_rip_all(s, 0);
    ehci_queues_rip_all(s, 1);
    timer_del(s->frame_timer);
    qemu_bh_cancel(s->async_bh);
}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.