[PATCH 2/6] user32/tests: Zero initialize DEVMODE before passing it to EnumDisplaySettings().
Zhiyi Zhang
zzhang at codeweavers.com
Tue Aug 11 05:15:28 CDT 2020
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 <zzhang at codeweavers.com>
---
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());
--
2.25.1
More information about the wine-devel
mailing list