[asterisk-bugs] [JIRA] (ASTERISK-28620) Segfault in chan_pjsip on pj_strcmp when filtering a transmit message

[Ross Beer (JIRA)]

Ross Beer created ASTERISK-28620:
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             Summary: Segfault in chan_pjsip on pj_strcmp when filtering a transmit message
                 Key: ASTERISK-28620
                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28620
             Project: Asterisk
          Issue Type: Bug
      Security Level: None
          Components: Channels/chan_pjsip
    Affects Versions: 13.29.1, GIT
         Environment: CentOS 7.6
            Reporter: Ross Beer
            Severity: Minor


Segfault while comparing strings during filtering transmit messages:

{noformat}
Thread 1 (Thread 0x7f52ee277700 (LWP 125559)):
#0  0x00007f560b235594 in pj_strcmp (str1=0x20202020200902c4, str2=0x7f52ee2768c0) at ../include/pj/string_i.h:148
#1  0x00007f560b235775 in pj_strcmp2 (str1=0x20202020200902c4, str2=0x7f540e35c15f "IP4") at ../include/pj/string_i.h:211
        copy2 = {ptr = 0x7f540e35c15f "IP4", slen = 3}
#2  0x00007f540e337ae6 in multihomed_rewrite_sdp (sdp=0x7f551c0694c8) at res_pjsip/pjsip_message_filter.c:151
#3  0x00007f540e3384d8 in filter_on_tx_message (tdata=0x7f52b2b015b8) at res_pjsip/pjsip_message_filter.c:321
        restrictions = 0x0
        prm = {tp_type = PJSIP_TRANSPORT_UDP, tp_sel = 0x0, dst_host = {ptr = 0x7f52b2b01d48 "194.54.8.157", slen = 12}, local_if = 1, ret_addr = {ptr = 0x2f050e8 "185.91.41.30", slen = 12}, ret_port = 5060, ret_tp = 0x2f04f28}
        cseq = 0x7f52ee276a40
        via = 0x7f551c07d5e0
        from = 0x7f52b2b02038
{noformat}



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