[tfaber] 74059: [USER32] - Fix overflow check in SetScrollRange. CID 731535 CORE-12763 #resolve

Author: tfaber
Date: Sat Mar  4 19:02:30 2017
New Revision: 74059

URL: http://svn.reactos.org/svn/reactos?rev=74059&view=rev
Log:
[USER32]
- Fix overflow check in SetScrollRange. CID 731535
CORE-12763 #resolve

Modified:
    trunk/reactos/win32ss/user/user32/controls/scrollbar.c

Modified: trunk/reactos/win32ss/user/user32/controls/scrollbar.c
URL:
http://svn.reactos.org/svn/reactos/trunk/reactos/win32ss/user/user32/contro…
==============================================================================
--- trunk/reactos/win32ss/user/user32/controls/scrollbar.c	[iso-8859-1] (original)
+++ trunk/reactos/win32ss/user/user32/controls/scrollbar.c	[iso-8859-1] Sat Mar  4
19:02:30 2017
@@ -1701,7 +1701,7 @@
   pWnd = ValidateHwnd(hWnd);
   if ( !pWnd ) return FALSE;
 
-  if ((nMaxPos - nMinPos) > MAXLONG)
+  if (((LONGLONG)nMaxPos - nMinPos) > MAXLONG)
   {
      SetLastError(ERROR_INVALID_SCROLLBAR_RANGE);
      return FALSE;