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[Qemu-devel] Re: [PATCH] Out off array access in usb-net


From: Paolo Bonzini
Subject: [Qemu-devel] Re: [PATCH] Out off array access in usb-net
Date: Tue, 09 Nov 2010 10:29:54 +0100
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On 11/09/2010 08:36 AM, Gleb Natapov wrote:
Properly check array bounds before accessing array element.

Signed-off-by: Gleb Natapov<address@hidden>
diff --git a/hw/usb-net.c b/hw/usb-net.c
index 70f9263..84e2d79 100644
--- a/hw/usb-net.c
+++ b/hw/usb-net.c
@@ -1142,7 +1142,7 @@ static int usb_net_handle_control(USBDevice *dev, int 
request, int value,
                  break;

              default:
-                if (usb_net_stringtable[value&  0xff]) {
+                if (ARRAY_SIZE(usb_net_stringtable)>  (value&  0xff)) {
                      ret = set_usb_string(data,
                                      usb_net_stringtable[value&  0xff]);
                      break;
--
                        Gleb.


Reviewed-by: Paolo Bonzini <address@hidden>

Paolo



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