Alexandre Julliard : user.exe: Make sure that the thunk selector doesn't get freed.
Alexandre Julliard
julliard at winehq.org
Thu Jan 20 15:44:47 CST 2022
Module: wine
Branch: master
Commit: 879ccd33572170e9bcb00d5a45cf65b2ca675439
URL: https://source.winehq.org/git/wine.git/?a=commit;h=879ccd33572170e9bcb00d5a45cf65b2ca675439
Author: Alexandre Julliard <julliard at winehq.org>
Date: Thu Jan 20 11:07:20 2022 +0100
user.exe: Make sure that the thunk selector doesn't get freed.
Spotted by Fabian Maurer.
Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=12732
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
dlls/user.exe16/message.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/dlls/user.exe16/message.c b/dlls/user.exe16/message.c
index 1b4bf9afbd8..5d388a55312 100644
--- a/dlls/user.exe16/message.c
+++ b/dlls/user.exe16/message.c
@@ -161,6 +161,7 @@ static WNDPROC16 alloc_win16_thunk( WNDPROC handle )
if (!(thunk_selector = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT,
MAX_WINPROCS16 * sizeof(WINPROC_THUNK) )))
return NULL;
+ FarSetOwner16( thunk_selector, 0 );
PrestoChangoSelector16( thunk_selector, thunk_selector );
thunk_array = GlobalLock16( thunk_selector );
relay = GetProcAddress16( GetModuleHandle16("user"), "__wine_call_wndproc" );
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