From 8dd1bf096798e9926cd8aaa216a34dc1da8a5089 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20Canna=C3=B2?= <rene.cannao@gmail.com>
Date: Tue, 15 Jan 2019 01:12:52 +1100
Subject: [PATCH] Crash when LDAP plugin is not loaded #1863

---
 lib/ProxySQL_Admin.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/ProxySQL_Admin.cpp b/lib/ProxySQL_Admin.cpp
index 320ae1d61..af3d1f14b 100644
--- a/lib/ProxySQL_Admin.cpp
+++ b/lib/ProxySQL_Admin.cpp
@@ -4652,6 +4652,9 @@ void ProxySQL_Admin::flush_ldap_variables___database_to_runtime(SQLite3DB *db, b
 
 void ProxySQL_Admin::flush_ldap_variables___runtime_to_database(SQLite3DB *db, bool replace, bool del, bool onlyifempty, bool runtime) {
 	proxy_debug(PROXY_DEBUG_ADMIN, 4, "Flushing LDAP variables. Replace:%d, Delete:%d, Only_If_Empty:%d\n", replace, del, onlyifempty);
+	if (GloMyLdapAuth == NULL) {
+		return;
+	}
 	if (onlyifempty) {
 		char *error=NULL;
 	  int cols=0;