[PATCH 0/1] MR7789: kernelbase: fix racing condition in GlobalMemoryStatusEx()

[Rastislav Stanik (＠rastos)]

set cached_status variable that decides whether cached information
is returned only after information is actually placed in the cache

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58082

[PATCH 1/1] kernelbase: fix racing condition in GlobalMemoryStatusEx()

[Rastislav Stanik]

From: Rastislav Stanik

set cached_status variable that decides whether cached information
is returned only after information is actually placed in the cache

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=58082
---
 dlls/kernelbase/memory.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dlls/kernelbase/memory.c b/dlls/kernelbase/memory.c
index 0be178f6ab7..faca39db4eb 100644
--- a/dlls/kernelbase/memory.c
+++ b/dlls/kernelbase/memory.c
@@ -1348,7 +1348,6 @@ BOOL WINAPI DECLSPEC_HOTPATCH GlobalMemoryStatusEx( MEMORYSTATUSEX *status )
    *status = cached_status;
    return TRUE;
     }
-    last_check = NtGetTickCount();

if (!set_ntstatus( NtQuerySystemInformation( SystemBasicInformation,
                                                  &basic_info, sizeof(basic_info), NULL )) ||
@@ -1381,6 +1380,7 @@ BOOL WINAPI DECLSPEC_HOTPATCH GlobalMemoryStatusEx( MEMORYSTATUSEX *status )
                      status->ullAvailPageFile, status->ullTotalVirtual, status->ullAvailVirtual );

cached_status = *status;
+    last_check = NtGetTickCount();
     return TRUE;
 }