From 7955690ad7110685ffdae9141586ab2e4f1b8904 Mon Sep 17 00:00:00 2001
From: Timo Kreuzer <timo.kreuzer@reactos.org>
Date: Fri, 3 Jul 2026 11:30:01 +0300
Subject: [PATCH] [NTOS:EX] Create a stub for SystemModuleInformationEx sysinfo
 class

The stub returns STATUS_INVALID_INFO_CLASS rather than STATUS_NOT_IMPLEMENTED.
This is a temporary measure to indicate to ntdll_winetest that this system information class is not implemented and prevent the test from crashing.
---
 ntoskrnl/ex/sysinfo.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/ntoskrnl/ex/sysinfo.c b/ntoskrnl/ex/sysinfo.c
index 9b8b5a13cdc..2678e2dbc0b 100644
--- a/ntoskrnl/ex/sysinfo.c
+++ b/ntoskrnl/ex/sysinfo.c
@@ -2884,6 +2884,13 @@ QSI_DEF(SystemFirmwareTableInformation)
     return Status;
 }
 
+/* Class 77 - Extended module information */
+QSI_DEF(SystemModuleInformationEx)
+{
+    /* For now return STATUS_INVALID_INFO_CLASS to avoid crashing in wine tests */
+    return STATUS_INVALID_INFO_CLASS;
+}
+
 /* Class 105 - Processor Brand String */
 QSI_DEF(SystemProcessorBrandString)
 {
@@ -3014,6 +3021,7 @@ CallQS[] =
     SI_QX(SystemFirmwareTableInformation),
 
     // Vista and later
+    SI_QX(SystemModuleInformationEx),
     SI_QX(SystemProcessorBrandString),
 };