From 05bc98a4109130b8a9bb48bd9a096181f908ac47 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kristoffer=20H=C3=B8jelse?=
 <34659757+hojelse@users.noreply.github.com>
Date: Fri, 26 May 2023 18:43:18 +0200
Subject: [PATCH] Kernel: Fix panic when switching to out-of-bounds console

This was caused by an off-by-two error.
Fixes #19034
---
 Kernel/Devices/HID/KeyboardDevice.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Kernel/Devices/HID/KeyboardDevice.cpp b/Kernel/Devices/HID/KeyboardDevice.cpp
index 5b5aa668c3..27e3938812 100644
--- a/Kernel/Devices/HID/KeyboardDevice.cpp
+++ b/Kernel/Devices/HID/KeyboardDevice.cpp
@@ -253,7 +253,7 @@ void KeyboardDevice::handle_scan_code_input_event(ScanCodeEvent event)
         Scheduler::dump_scheduler_state(m_modifiers == (Mod_Ctrl | Mod_Alt | Mod_Shift));
     }
 
-    if ((m_modifiers & Mod_Alt) != 0 && key >= Key_1 && key <= Key_1 + ConsoleManagement::s_max_virtual_consoles + 1) {
+    if ((m_modifiers & Mod_Alt) != 0 && key >= Key_1 && key < Key_1 + ConsoleManagement::s_max_virtual_consoles) {
         // FIXME: Do something sanely here if we can't allocate a work queue?
         MUST(g_io_work->try_queue([key]() {
             ConsoleManagement::the().switch_to(key - Key_1);