VLR: fix potential NULL dereference
The vlr_subscr_get() can return NULL if its argument is NULL
(which isn't checked for) so before dereferencing it's result
we should check for it.
Change-Id: I13632908d0b67323202effa9dd6f29732a12cc91
diff --git a/src/libmsc/gsm_04_08.c b/src/libmsc/gsm_04_08.c
index 995bbf6..f87a4c6 100644
--- a/src/libmsc/gsm_04_08.c
+++ b/src/libmsc/gsm_04_08.c
@@ -3721,8 +3721,10 @@
struct vlr_subscr *vsub)
{
struct gsm_subscriber_connection *conn = msc_conn_ref;
+ OSMO_ASSERT(vsub);
OSMO_ASSERT(!conn->vsub);
conn->vsub = vlr_subscr_get(vsub);
+ OSMO_ASSERT(conn->vsub);
conn->vsub->cs.attached_via_ran = conn->via_ran;
}