Andrew Eikum : ntdll: Fix memory region check in NtQueryVirtualMemory.

[Alexandre Julliard]

Module: wine
Branch: stable
Commit: 318a41030e0c3759878e4ddb471f0c49b9a189de
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=318a41030e0c3759878e4ddb471f0c49b9a189de

Author: Andrew Eikum <aeikum at codeweavers.com>
Date:   Wed Mar 27 11:33:25 2019 -0500

ntdll: Fix memory region check in NtQueryVirtualMemory.

Patch by buggy at ifel.se.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45218
Signed-off-by: Andrew Eikum <aeikum at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
(cherry picked from commit 12be24af8cab0e5f78795b164ec8847bafc30852)
Signed-off-by: Michael Stefaniuc <mstefani at winehq.org>

---

 dlls/ntdll/virtual.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/ntdll/virtual.c b/dlls/ntdll/virtual.c
index da2dad1b53..90f5773787 100644
--- a/dlls/ntdll/virtual.c
+++ b/dlls/ntdll/virtual.c
@@ -2756,7 +2756,7 @@ static int get_free_mem_state_callback( void *start, size_t size, void *arg )
     MEMORY_BASIC_INFORMATION *info = arg;
     void *end = (char *)start + size;
 
-    if ((char *)info->BaseAddress + info->RegionSize < (char *)start) return 0;
+    if ((char *)info->BaseAddress + info->RegionSize <= (char *)start) return 0;
 
     if (info->BaseAddress >= end)
     {