From: Austin English <austinenglish@gmail.com>
Subject: setupapi: make sure DeviceInterfaceData->cbSize is initialized in SetupDiEnumDeviceInterfaces
Message-Id: <CACC5Q1fpxL7y2GRSRjOBRJMi13b6tDoazVF+r01t7f8WbGx4rA@mail.gmail.com>
Date: Fri, 14 Mar 2014 19:45:19 -0400

Fixes https://bugs.winehq.org/show_bug.cgi?id=26235

-- 
-Austin

<div dir="ltr">Fixes <a href="https://bugs.winehq.org/show_bug.cgi?id=26235">https://bugs.winehq.org/show_bug.cgi?id=26235</a><br clear="all"><div><br>-- <br>-Austin
</div></div>

diff --git a/dlls/setupapi/devinst.c b/dlls/setupapi/devinst.c
index 33dea82..b6c8aa4 100644
--- a/dlls/setupapi/devinst.c
+++ b/dlls/setupapi/devinst.c
@@ -2795,8 +2795,11 @@ BOOL WINAPI SetupDiEnumDeviceInterfaces(HDEVINFO DeviceInfoSet, PSP_DEVINFO_DATA
         SetLastError(ERROR_INVALID_PARAMETER);
         return FALSE;
     }
+    
     /* In case application fails to check return value, clear output */
     memset(DeviceInterfaceData, 0, sizeof(*DeviceInterfaceData));
+    DeviceInterfaceData->cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);
+
     if (DeviceInfoData)
     {
         struct DeviceInfo *devInfo =