FS-10823: [mod_sofia] curly brackets on SDP header causes FS to crash #resolve

diff --git a/src/mod/endpoints/mod_sofia/mod_sofia.c b/src/mod/endpoints/mod_sofia/mod_sofia.c
index 439aed271895474d6b2ce7ada4e249b67c50709a..72acad91d13b332cd509202eb979743a42655e21 100644 (file)
--- a/src/mod/endpoints/mod_sofia/mod_sofia.c
+++ b/src/mod/endpoints/mod_sofia/mod_sofia.c
@@ -856,7 +856,7 @@ static switch_status_t sofia_answer_channel(switch_core_session_t *session)
 
                                switch_core_media_prepare_codecs(tech_pvt->session, SWITCH_TRUE);
 
-                               if (sofia_media_tech_media(tech_pvt, r_sdp) != SWITCH_STATUS_SUCCESS) {
+                               if (zstr(r_sdp) || sofia_media_tech_media(tech_pvt, r_sdp) != SWITCH_STATUS_SUCCESS) {
                                        switch_channel_set_variable(channel, SWITCH_ENDPOINT_DISPOSITION_VARIABLE, "CODEC NEGOTIATION ERROR");
                                        //switch_mutex_lock(tech_pvt->sofia_mutex);
                                        //nua_respond(tech_pvt->nh, SIP_488_NOT_ACCEPTABLE, TAG_END());