From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Mon, 19 Jun 2023 14:10:45 +0000 (+0200)
Subject: sched: reset timer queue in finalization
X-Git-Tag: 4.4-pre2~4
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6661a614864940611f36b41be39400e0d1ef506b;p=thirdparty%2Fchrony.git

sched: reset timer queue in finalization

Don't leave dangling pointers to timer queue entries when they are
freed in the scheduler finalization in case some code tried to remove
a timer later.

Fixes: 6ea1082a72d8 ("sched: free timer blocks on exit")
---

diff --git a/sched.c b/sched.c
index 1505dc3a..676866ef 100644
--- a/sched.c
+++ b/sched.c
@@ -163,6 +163,8 @@ SCH_Finalise(void) {
 
   ARR_DestroyInstance(file_handlers);
 
+  timer_queue.next = &timer_queue;
+  timer_queue.prev = &timer_queue;
   for (i = 0; i < ARR_GetSize(tqe_blocks); i++)
     Free(*(TimerQueueEntry **)ARR_GetElement(tqe_blocks, i));
   ARR_DestroyInstance(tqe_blocks);