static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid,
                               unsigned int epid)
{
    XHCISlot *slot;
    XHCIEPContext *epctx;
    int i;

    trace_usb_xhci_ep_disable(slotid, epid);
    assert(slotid >= 1 && slotid <= xhci->numslots);
    assert(epid >= 1 && epid <= 31);

    slot = &xhci->slots[slotid-1];

    if (!slot->eps[epid-1]) {
        DPRINTF("xhci: slot %d ep %d already disabled\n", slotid, epid);
        return CC_SUCCESS;
    }

    xhci_ep_nuke_xfers(xhci, slotid, epid, 0);

    epctx = slot->eps[epid-1];

    if (epctx->nr_pstreams) {
        xhci_free_streams(epctx);
    }

    for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) {
        usb_packet_cleanup(&epctx->transfers[i].packet);
    }

    /* only touch guest RAM if we're not resetting the HC */
    if (xhci->dcbaap_low || xhci->dcbaap_high) {
        xhci_set_ep_state(xhci, epctx, NULL, EP_DISABLED);
    }

    timer_free(epctx->kick_timer);
    g_free(epctx);
    slot->eps[epid-1] = NULL;

    return CC_SUCCESS;
}

This vulnerability category highlights issues in resource management where failures to properly release memory, file handles, or other resources can degrade system performance or enable denial-of-service conditions.