From 9db24e33c7d3609bade7a37a55af79cb4a83a9b2 Mon Sep 17 00:00:00 2001
From: Doug Lyons <douglyons@douglyons.com>
Date: Wed, 5 Jan 2022 19:10:56 -0600
Subject: [PATCH] [WINLOGON] Start screen saver as current user (#4135)

This fixes displaying user-defined text for 3D Text ScreenSaver.
Also set the process to IDLE_PRIORITY_CLASS.

CORE-17875
---
 base/system/winlogon/screensaver.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/base/system/winlogon/screensaver.c b/base/system/winlogon/screensaver.c
index 6bd681ca39e..6f37bf57362 100644
--- a/base/system/winlogon/screensaver.c
+++ b/base/system/winlogon/screensaver.c
@@ -332,16 +332,17 @@ StartScreenSaver(
     /* FIXME: Run the screen saver on the secure screen saver desktop if required */
     StartupInfo.lpDesktop = L"WinSta0\\Default";
 
-    ret = CreateProcessW(szApplicationName,
-                         szCommandLine,
-                         NULL,
-                         NULL,
-                         FALSE,
-                         0,
-                         NULL,
-                         NULL,
-                         &StartupInfo,
-                         &ProcessInformation);
+    ret = CreateProcessAsUserW(Session->UserToken,
+                               szApplicationName,
+                               szCommandLine,
+                               NULL,
+                               NULL,
+                               FALSE,
+                               IDLE_PRIORITY_CLASS,
+                               NULL,
+                               NULL,
+                               &StartupInfo,
+                               &ProcessInformation);
     if (!ret)
     {
         ERR("WL: Unable to start %S, error %lu\n", szApplicationName, GetLastError());