From: Timo Sirainen <timo.sirainen@dovecot.fi>
Date: Mon, 8 Aug 2016 14:56:48 +0000 (+0300)
Subject: lib-auth: Avoid crash after user iteration if connection failed.
X-Git-Tag: 2.2.26~393
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=9411a15cc6abffc4056e0926e4abe77e18940922;p=thirdparty%2Fdovecot%2Fcore.git

lib-auth: Avoid crash after user iteration if connection failed.
---

diff --git a/src/lib-auth/auth-master.c b/src/lib-auth/auth-master.c
index 38b8902147..4eb6ee9354 100644
--- a/src/lib-auth/auth-master.c
+++ b/src/lib-auth/auth-master.c
@@ -699,7 +699,8 @@ auth_master_user_list_init(struct auth_master_connection *conn,
 
 	if (auth_master_run_cmd_pre(conn, str_c(str)) < 0)
 		ctx->failed = TRUE;
-	io_loop_set_current(conn->prev_ioloop);
+	if (conn->prev_ioloop != NULL)
+		io_loop_set_current(conn->prev_ioloop);
 	conn->prefix = DEFAULT_USERDB_LOOKUP_PREFIX;
 	return ctx;
 }