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From: Gerd Hoffmann <kraxel@redhat.com>
To: qemu-devel@nongnu.org
Cc: Peter Maydell <peter.maydell@linaro.org>,
	Gerd Hoffmann <kraxel@redhat.com>
Subject: [Qemu-devel] [PATCH] ehci: add sanity check for maxframes
Date: Mon,  3 Jul 2017 13:15:49 +0200	[thread overview]
Message-ID: <20170703111549.10924-1-kraxel@redhat.com> (raw)

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 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

             reply	other threads:[~2017-07-03 11:16 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-03 11:15 Gerd Hoffmann [this message]
2017-07-03 11:32 ` [Qemu-devel] [PATCH] ehci: add sanity check for maxframes Peter Maydell

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