From 30753514ac06111da5b677fe7cdbafd696b1d620 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Petr=20Men=C5=A1=C3=ADk?= <pemensik@redhat.com>
Date: Wed, 22 Jul 2020 18:55:02 +0200
Subject: [PATCH] Prevent crash on dst initialization failure

server might be created, but not yet fully initialized, when fatal
function is called. Check both server and task before attaching
exclusive task.

(cherry picked from commit c5e7152cf04f75d0fe00163f076f4cc3cafce259)
(cherry picked from commit 35fbfaa4981333286437f26557db26863d4c5299)
---
 bin/named/server.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bin/named/server.c b/bin/named/server.c
index 3cd8daf99e..38780ad3d7 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -9341,7 +9341,7 @@ ns_server_destroy(ns_server_t **serverp) {
 
 static void
 fatal(ns_server_t *server, const char *msg, isc_result_t result) {
-	if (server != NULL) {
+	if (server != NULL && server->task != NULL) {
 		/*
 		 * Prevent races between the OpenSSL on_exit registered
 		 * function and any other OpenSSL calls from other tasks
-- 
2.26.2