AST-2013-004: Fix crash when handling ACK on dialog that has no channel

[asterisk/asterisk.git] / channels / chan_sip.c

diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 58ee175..46d803c 100644 (file)
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -28167,7 +28167,7 @@ static int handle_incoming(struct sip_pvt *p, struct sip_request *req, struct as
                        p->invitestate = INV_TERMINATED;
                        p->pendinginvite = 0;
                        acked = __sip_ack(p, seqno, 1 /* response */, 0);
                        p->invitestate = INV_TERMINATED;
                        p->pendinginvite = 0;
                        acked = __sip_ack(p, seqno, 1 /* response */, 0);

-                       if (find_sdp(req)) {
+                       if (p->owner && find_sdp(req)) {

                                if (process_sdp(p, req, SDP_T38_NONE)) {
                                        return -1;
                                }
                                if (process_sdp(p, req, SDP_T38_NONE)) {
                                        return -1;
                                }