From bf5c0c8144f369f31a455a40d6c696767402709d Mon Sep 17 00:00:00 2001
From: Neels Hofmeyr <nhofmeyr@sysmocom.de>
Date: Thu, 30 Mar 2023 18:19:30 +0200
Subject: [PATCH] avoid segfault in gscon_bssmap_clear

Related: OS#5982
Change-Id: I36206973efbf31bcf9366038a95d26a6deed7a86
---
 src/osmo-bsc/bsc_subscr_conn_fsm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/osmo-bsc/bsc_subscr_conn_fsm.c b/src/osmo-bsc/bsc_subscr_conn_fsm.c
index de9d4d248..8fa923c0a 100644
--- a/src/osmo-bsc/bsc_subscr_conn_fsm.c
+++ b/src/osmo-bsc/bsc_subscr_conn_fsm.c
@@ -148,6 +148,8 @@ int gscon_sigtran_send(struct gsm_subscriber_connection *conn, struct msgb *msg)
 void gscon_bssmap_clear(struct gsm_subscriber_connection *conn, enum gsm0808_cause cause)
 {
 	/* already clearing? */
+	if (!conn || !conn->fi)
+		return;
 	switch (conn->fi->state) {
 	case ST_WAIT_CLEAR_CMD:
 	case ST_WAIT_SCCP_RLSD: