From fd402083d7d65092059002c44e70e22bb9e54e23 Mon Sep 17 00:00:00 2001
From: apio <blobs.trading@gmail.com>
Date: Sat, 6 Jan 2024 18:12:25 +0100
Subject: [PATCH] kernel: Fix kernel panic when adding a timer before another
 one

This was caused because add_to_timer_queue() did not set active_clock when inserting a timer before the end, making disarm() a no-op.
Therefore, the clock would continue to use the timer after it had been freed.
---
 kernel/src/thread/Clock.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/src/thread/Clock.cpp b/kernel/src/thread/Clock.cpp
index 1fb6c8bb..2cf28b3b 100644
--- a/kernel/src/thread/Clock.cpp
+++ b/kernel/src/thread/Clock.cpp
@@ -79,6 +79,7 @@ void Clock::add_to_timer_queue(Timer* timer)
         {
             t->delta_ticks -= timer->delta_ticks;
             m_timer_queue.add_before(t, timer);
+            timer->active_clock = this;
             return;
         }
         timer->delta_ticks -= t->delta_ticks;