Revision: 17933
          http://sourceforge.net/p/edk2/code/17933
Author:   hwu1225
Date:     2015-07-13 01:24:00 +0000 (Mon, 13 Jul 2015)
Log Message:
-----------
IntelFrameworkModulePkg DeviceMngr: Potential read over memory boundary

This commit will resolve the issue brought by r17738.

String = AllocateCopyPool (BufferLen, L"MAC:");

The above using of AllocateCopyPool() will read contents out of the scope
of the constant string. Potential risk for the constant string allocated
at the boundary of memory region.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Hao Wu <[email protected]>
Reviewed-by: Qiu Shumin <[email protected]>
Reviewed-by: Jeff Fan <[email protected]>

Revision Links:
--------------
    http://sourceforge.net/p/edk2/code/17738

Modified Paths:
--------------
    
trunk/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/DeviceMngr/DeviceManager.c

Modified: 
trunk/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/DeviceMngr/DeviceManager.c
===================================================================
--- 
trunk/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/DeviceMngr/DeviceManager.c  
    2015-07-13 01:23:37 UTC (rev 17932)
+++ 
trunk/edk2/IntelFrameworkModulePkg/Universal/BdsDxe/DeviceMngr/DeviceManager.c  
    2015-07-13 01:24:00 UTC (rev 17933)
@@ -374,12 +374,13 @@
   // The size is the Number size + ":" size + Vlan size(\XXXX) + End
   //
   BufferLen = (4 + 2 * HwAddressSize + (HwAddressSize - 1) + 5 + 1) * sizeof 
(CHAR16);
-  String = AllocateCopyPool (BufferLen, L"MAC:");
+  String = AllocateZeroPool (BufferLen);
   if (String == NULL) {
     return FALSE;
   }
 
   *PBuffer = String;
+  StrCpyS (String, BufferLen / sizeof (CHAR16), L"MAC:");
   String += 4;
   
   //


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