GraphicsOutputBlt() need judge parameter

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9985 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 5 insertions, 1 deletions

diff --git a/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterGraphics.c b/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterGraphics.c
index f01e0a7b8d..5b11f2114b 100644
--- a/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterGraphics.c
+++ b/MdeModulePkg/Universal/Console/ConSplitterDxe/ConSplitterGraphics.c
@@ -1,7 +1,7 @@
 /** @file

   Support for Graphics output spliter.

   

-Copyright (c) 2006 - 2009, Intel Corporation. <BR>

+Copyright (c) 2006 - 2010, Intel Corporation. <BR>

 All rights reserved. This program and the accompanying materials

 are licensed and made available under the terms and conditions of the BSD License

 which accompanies this distribution.  The full text of the license may be found at

@@ -239,6 +239,10 @@ ConSplitterGraphicsOutputBlt (
   EFI_GRAPHICS_OUTPUT_PROTOCOL    *GraphicsOutput;

   EFI_UGA_DRAW_PROTOCOL           *UgaDraw;

 

+  if (This == NULL || ((UINTN) BltOperation) >= EfiGraphicsOutputBltOperationMax) {

+    return EFI_INVALID_PARAMETER;

+  }

+  

   Private = GRAPHICS_OUTPUT_SPLITTER_PRIVATE_DATA_FROM_THIS (This);

 

   ReturnStatus = EFI_SUCCESS;