[gschneider] 42748: Handle a missing output buffer in NtGdiGetCharABCWidthsW

Author: gschneider
Date: Mon Aug 17 02:13:44 2009
New Revision: 42748

URL: http://svn.reactos.org/svn/reactos?rev=42748&view=rev
Log:
Handle a missing output buffer in NtGdiGetCharABCWidthsW

Modified:
    trunk/reactos/subsystems/win32/win32k/objects/freetype.c

Modified: trunk/reactos/subsystems/win32/win32k/objects/freetype.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/subsystems/win32/win32k/ob…
==============================================================================
--- trunk/reactos/subsystems/win32/win32k/objects/freetype.c [iso-8859-1] (original)
+++ trunk/reactos/subsystems/win32/win32k/objects/freetype.c [iso-8859-1] Mon Aug 17
02:13:44 2009
@@ -3761,6 +3761,12 @@
         return FALSE;
     }
 
+    if (!Buffer)
+    {
+        SetLastWin32Error(ERROR_INVALID_PARAMETER);
+        return FALSE;
+    }
+
     BufferSize = Count * sizeof(ABC); // Same size!
     SafeBuff = ExAllocatePoolWithTag(PagedPool, BufferSize, TAG_GDITEXT);
     if (!fl) SafeBuffF = (LPABCFLOAT) SafeBuff;