ntdll-ThreadHideFromDebugger: Add patch.

patches/ntdll-ThreadHideFromDebugger/0001-ntdll-Stub-NtQueryInformationThread-ThreadHideFromDe.patch

@@ -0,0 +1,28 @@
+From 39813f58fc654ecd12f9ce5cf0d6e356e2e81697 Mon Sep 17 00:00:00 2001
+From: David Torok <dt@zeroitlab.com>
+Date: Tue, 19 Nov 2019 23:01:46 +0100
+Subject: [PATCH] ntdll: Stub NtQueryInformationThread(ThreadHideFromDebugger).
+
+---
+ dlls/ntdll/thread.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/dlls/ntdll/thread.c b/dlls/ntdll/thread.c
+index 621aaddfe..512b4814e 100644
+--- a/dlls/ntdll/thread.c
++++ b/dlls/ntdll/thread.c
+@@ -1115,6 +1115,11 @@ NTSTATUS WINAPI NtQueryInformationThread( HANDLE handle, THREADINFOCLASS class,
+         *(BOOL*)data = FALSE;
+         if (ret_len) *ret_len = sizeof(BOOL);
+         return STATUS_SUCCESS;
++    case ThreadHideFromDebugger:
++        if (length != sizeof(char)) return STATUS_INFO_LENGTH_MISMATCH;
++        *(BOOLEAN *)data = TRUE;
++        if (ret_len) *ret_len = sizeof(BOOLEAN);
++        return STATUS_SUCCESS;
+     case ThreadPriority:
+     case ThreadBasePriority:
+     case ThreadImpersonationToken:
+-- 
+2.23.0
+

patches/ntdll-ThreadHideFromDebugger/definition

@@ -0,0 +1 @@
+Fixes: [48138] League of Legends 9.23: Crash after champ select