From: Petr Menšík <pemensik@redhat.com>
Date: Wed, 22 Jul 2020 16:55:02 +0000 (+0200)
Subject: Prevent crash on dst initialization failure
X-Git-Tag: v9.17.4~38^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c5e7152cf04f75d0fe00163f076f4cc3cafce259;p=thirdparty%2Fbind9.git

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.
---

diff --git a/bin/named/server.c b/bin/named/server.c
index da1566ebb86..0d9639717ff 100644
--- a/bin/named/server.c
+++ b/bin/named/server.c
@@ -10116,7 +10116,7 @@ named_server_destroy(named_server_t **serverp) {
 
 static void
 fatal(named_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