From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45769) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dRzKh-0003Zt-56 for qemu-devel@nongnu.org; Mon, 03 Jul 2017 07:16:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dRzKe-00063V-0L for qemu-devel@nongnu.org; Mon, 03 Jul 2017 07:15:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:46384) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dRzKd-00062z-Qk for qemu-devel@nongnu.org; Mon, 03 Jul 2017 07:15:55 -0400 From: Gerd Hoffmann Date: Mon, 3 Jul 2017 13:15:49 +0200 Message-Id: <20170703111549.10924-1-kraxel@redhat.com> Subject: [Qemu-devel] [PATCH] ehci: add sanity check for maxframes List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Peter Maydell , Gerd Hoffmann Reported-by: Peter Maydell Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-ehci.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c index 73090e01ad..604912cb3e 100644 --- a/hw/usb/hcd-ehci.c +++ b/hw/usb/hcd-ehci.c @@ -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); -- 2.9.3