[PATCH] ntdll: Fix memory region check in NtQueryVirtualMemory

[Andrew Eikum]

Patch by buggy(a)ifel.se.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=45218
Signed-off-by: Andrew Eikum <aeikum(a)codeweavers.com>
---

Off-by-one error. We want to quit early if start is outside the range.
start is outside the range if it is equal to base+size.

 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 76dc6c284d..fb6ede656e 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)
     {
-- 
2.21.0

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=50040

Your paranoid android.


=== debian9 (build log) ===

error: patch failed: dlls/ntdll/virtual.c:2756
Task: Patch failed to apply

=== debian9 (build log) ===

error: patch failed: dlls/ntdll/virtual.c:2756
Task: Patch failed to apply