Commit 2a7f2630 authored by Gerd Hoffmann's avatar Gerd Hoffmann
Browse files

ehci: add sanity check for maxframes 



Reported-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Message-id: 20170703111549.10924-1-kraxel@redhat.com
Signed-off-by: default avatarGerd Hoffmann <kraxel@redhat.com>
parent 6e2c4633

hw/usb/hcd-ehci.c

+5 −0
Original line number Diff line number Diff line
@@ -2483,6 +2483,11 @@ void usb_ehci_realize(EHCIState *s, DeviceState *dev, Error **errp) 
                   NB_PORTS);

        return;

    }

    if (s->maxframes < 8 || s->maxframes > 512)  {

        error_setg(errp, "maxframes %d out if range (8 .. 512)",

                   s->maxframes);

        return;

    }



    usb_bus_new(&s->bus, sizeof(s->bus), s->companion_enable ?

                &ehci_bus_ops_companion : &ehci_bus_ops_standalone, dev);