[ros-diffs] [greatlrd] 32574: Better check for MmSecureVirtualMemory

[greatlrd at svn.reactos.org]

Author: greatlrd
Date: Thu Mar  6 00:01:21 2008
New Revision: 32574

URL: http://svn.reactos.org/svn/reactos?rev=3D32574&view=3Drev
Log:
Better check for MmSecureVirtualMemory

Modified:
    trunk/reactos/ntoskrnl/mm/virtual.c

Modified: trunk/reactos/ntoskrnl/mm/virtual.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/ntoskrnl/mm/virtual.c=
?rev=3D32574&r1=3D32573&r2=3D32574&view=3Ddiff
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D
--- trunk/reactos/ntoskrnl/mm/virtual.c (original)
+++ trunk/reactos/ntoskrnl/mm/virtual.c Thu Mar  6 00:01:21 2008
@@ -962,11 +962,11 @@
                       SIZE_T Length,
                       ULONG  Mode)
 {
-    /* Only works for user space */
-    if (MmHighestUserAddress < Address)
-    {
+     if ( ( Address + Length) > MmHighestUserAddress) || =

+          (Address + Length <=3D Address ) )
+     {
         return NULL;
-    }
+     }
 =

     UNIMPLEMENTED;
 =