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authorPau Espin Pedrol <pespin@sysmocom.de>2022-01-13 14:06:44 +0100
committerPau Espin Pedrol <pespin@sysmocom.de>2022-01-13 15:40:08 +0100
commitdd262263954cc01a986ac5232bfd762cd772d6b6 (patch)
treecd4b9ef390d813c4925175757d5fb3c9fe062be6 /src
parent0557ca268d2d8cb5d7af5739b770a5a655e8e1cb (diff)
call_leg: local_bridge: Avoid null pointer access if CN-side not readyHEADmaster
This happens if for instance an HNBGW drops the RAB-AssignmentRequest and does nothing with it. call_leg.c:348:15: runtime error: member access within null pointer of type 'struct rtp_stream' Related: OS#5401 Change-Id: I67d2d5b2dd3b367c34f929d63c056306ec001431
Diffstat (limited to 'src')
-rw-r--r--src/libmsc/call_leg.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libmsc/call_leg.c b/src/libmsc/call_leg.c
index 6242a8034..e890f753a 100644
--- a/src/libmsc/call_leg.c
+++ b/src/libmsc/call_leg.c
@@ -344,6 +344,9 @@ int call_leg_local_bridge(struct call_leg *cl1, uint32_t call_id1, struct gsm_tr
}
codec = cl1->rtp[RTP_TO_RAN]->codec;
+ if (!cl1->rtp[RTP_TO_CN] || !cl2->rtp[RTP_TO_CN])
+ return -ENOTCONN;
+
call_leg_ensure_ci(cl1, RTP_TO_CN, call_id1, trans1,
&codec, &cl2->rtp[RTP_TO_CN]->local);
call_leg_ensure_ci(cl2, RTP_TO_CN, call_id2, trans2,