Kernel: Prevent kprintf() from asserting in Console::the() (#718)

This triggered a stack overflow because ubsan can call kprintf() at any time, even before Console is initialized.
Author: https://github.com/sleepy-monax Commit: 81c4dcadf1 Pull-request: https://github.com/SerenityOS/serenity/pull/718 Reviewed-by: https://github.com/awesomekling
2025-07-29 04:09:13 +00:00 · 2019-11-03 13:17:55 +01:00 · 2019-11-03 13:17:55 +01:00 · 81c4dcadf1 · 2024-07-19 11:27:10 +09:00
commit 81c4dcadf1
parent 8216019b2e
3 changed files with 14 additions and 1 deletions
--- a/Kernel/Console.cpp
+++ b/Kernel/Console.cpp
@ -13,6 +13,11 @@ Console& Console::the()
    return *s_the;
 }

+bool Console::is_initialized()
+{
+    return s_the != nullptr;
+}
+
 Console::Console()
    : CharacterDevice(5, 1)
 {