From: Daniel Salzman <daniel.salzman@nic.cz>
Date: Tue, 9 Dec 2025 13:34:40 +0000 (+0100)
Subject: events: fix undefined behavior if invalid event
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=73ac453171057405ea381e8469488c654570db74;p=thirdparty%2Fknot-dns.git

events: fix undefined behavior if invalid event
---

diff --git a/src/knot/events/events.c b/src/knot/events/events.c
index 0648641e63..d93af62ce5 100644
--- a/src/knot/events/events.c
+++ b/src/knot/events/events.c
@@ -204,12 +204,12 @@ static void event_wrap(worker_task_t *task)
 
 	pthread_mutex_lock(&events->mx);
 	zone_event_type_t type = get_next_event(events);
-	pthread_cond_t *blocking = events->blocking[type];
 	if (!valid_event(type)) {
 		events->running = 0;
 		pthread_mutex_unlock(&events->mx);
 		return;
 	}
+	pthread_cond_t *blocking = events->blocking[type];
 	events->type = type;
 	event_set_time(events, type, 0);
 	events->forced[type] = false;