Index: accesschk.c
===================================================================
--- ntoskrnl/se/accesschk.c	(revision 70096)
+++ ntoskrnl/se/accesschk.c	(working copy)
@@ -425,8 +425,16 @@
     if (DesiredAccess == 0)
     {
         *GrantedAccess = PreviouslyGrantedAccess;
-        *AccessStatus = STATUS_SUCCESS;
-        ret = TRUE;
+        if (PreviouslyGrantedAccess == 0)
+        {
+            *AccessStatus = STATUS_ACCESS_DENIED;
+            ret = FALSE;
+        }
+        else
+        {
+            *AccessStatus = STATUS_SUCCESS;
+            ret = TRUE;
+        }
     }
     else
     {