[PATCH 2/6] user32/tests: Zero initialize DEVMODE before passing it to EnumDisplaySettings().

[Zhiyi Zhang]

Zero initialize DEVMODE before passing it to EnumDisplaySettings(), which may write beyond the end
of the DEVMODE structure on Windows because the dmDriverExtra field is uninitialized.

Signed-off-by: Zhiyi Zhang 
---
 dlls/user32/tests/monitor.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/dlls/user32/tests/monitor.c b/dlls/user32/tests/monitor.c
index 85fb2f080a7..57d2ec0008c 100644
--- a/dlls/user32/tests/monitor.c
+++ b/dlls/user32/tests/monitor.c
@@ -514,6 +514,7 @@ static void test_ChangeDisplaySettingsEx(void)

devices[device_count].index = device;
         lstrcpyA(devices[device_count].name, dd.DeviceName);
+        memset(&devices[device_count].original_mode, 0, sizeof(devices[device_count].original_mode));
         devices[device_count].original_mode.dmSize = sizeof(devices[device_count].original_mode);
         res = EnumDisplaySettingsA(dd.DeviceName, ENUM_CURRENT_SETTINGS, &devices[device_count].original_mode);
         ok(res, "EnumDisplaySettingsA %s failed, error %#x\n", dd.DeviceName, GetLastError());