From 80afda444e15871adc809f87c73aa242c1635ad5 Mon Sep 17 00:00:00 2001
From: Oliver Smith <osmith@sysmocom.de>
Date: Wed, 24 Nov 2021 11:45:13 +0100
Subject: [PATCH] bsc_subscr_conn_fsm: fix crash if !conn

Do not crash in gscon_ensure_mgw_endpoint() if conn is NULL.

Related: SYS#5728
Change-Id: Id579243cc9ebbe8f315cd11754166970329dc9cf
---
 src/osmo-bsc/bsc_subscr_conn_fsm.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/osmo-bsc/bsc_subscr_conn_fsm.c b/src/osmo-bsc/bsc_subscr_conn_fsm.c
index c18079f34..2140c9ba9 100644
--- a/src/osmo-bsc/bsc_subscr_conn_fsm.c
+++ b/src/osmo-bsc/bsc_subscr_conn_fsm.c
@@ -521,6 +521,11 @@ struct osmo_mgcpc_ep *gscon_ensure_mgw_endpoint(struct gsm_subscriber_connection
 	const char *epname;
 	struct mgcp_client *mgcp_client = NULL;
 
+	if (!conn) {
+		LOG_LCHAN(for_lchan, LOGL_ERROR, "no conn!\n");
+		return NULL;
+	}
+
 	if (conn->user_plane.mgw_endpoint)
 		return conn->user_plane.mgw_endpoint;