[asterisk-bugs] [JIRA] (ASTERISK-23101) pjsip: crash when parsing scheme from SIP URI

[Matt Jordan (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-23101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=213627#comment-213627 ] 

Matt Jordan commented on ASTERISK-23101:
----------------------------------------


Note: from one of the crashes, the PJSIP rdata:

{noformat}
(gdb) print *rdata
$2 = {tp_info = {pool = 0xb7110290, transport = 0xa955ba4, tp_data = 0x0, op_key = {op_key = {internal__ = {
          0x0 <repeats 32 times>}, activesock_data = 0x0, user_data = 0x0}, rdata = 0x0}}, pkt_info = {timestamp = {
      sec = 1389041329, msec = 972}, 
    packet = "REGISTER sip:199.102.239.103 SIP/2.0\r\nVia: SIP/2.0/UDP 10.4.0.148:47804;branch=z9hG4bK1668306163;rport\r\nRoute: <sip:199.102.239.103:5060;lr>\r\nFrom: <sip:5002 at 199.102.239.103>;tag=2098478806\r\nTo: <sip:"..., zero = 0, 
    len = 479, src_addr = {addr = {sa_family = 2}, ipv4 = {sin_family = 2, sin_port = 48314, sin_addr = {
          s_addr = 1668896586}, sin_zero = "\000\000\000\000\000\000\000"}, ipv6 = {sin6_family = 2, 
        sin6_port = 48314, sin6_flowinfo = 1668896586, sin6_addr = {s6_addr = '\000' <repeats 15 times>, u6_addr32 = {
            0, 0, 0, 0}}, sin6_scope_id = 0}}, src_addr_len = 16, 
    src_name = "74.87.121.99", '\000' <repeats 33 times>, src_port = 47804}, msg_info = {
    msg_buf = 0xa7d5094 "REGISTER sip:199.102.239.103 SIP/2.0\r\nVia: SIP/2.0/UDP 10.4.0.148:47804;branch=z9hG4bK1668306163;rport\r\nRoute: <sip:199.102.239.103:5060;lr>\r\nFrom: <sip:5002 at 199.102.239.103>;tag=2098478806\r\nTo: <sip:"..., 
    len = 479, msg = 0xa7d616c, info = 0xa7d6870 "Request msg REGISTER/cseq=2000 (rdata0xa7d4ff4)", cid = 0xa7d656c, 
    from = 0xa7d63a0, to = 0xa7d648c, via = 0xa7d622c, cseq = 0xa7d65bc, max_fwd = 0xa7d6634, route = 0xa7d62d0, 
    record_route = 0x0, ctype = 0x0, clen = 0xa7d684c, require = 0x0, supported = 0x0, parse_err = {prev = 0xa7d60d0, 
      next = 0xa7d60d0, except_code = 0, line = 0, col = 0, hname = {ptr = 0x0, slen = 0}}}, endpt_info = {mod_data = {
      0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xa96c90c, 0x0 <repeats 25 times>}}}
{noformat}
                
> pjsip: crash when parsing scheme from SIP URI
> ---------------------------------------------
>
>                 Key: ASTERISK-23101
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-23101
>             Project: Asterisk
>          Issue Type: Bug
>          Components: Resources/res_pjsip
>            Reporter: Matt Jordan
>         Attachments: core.freepbxdev1-2014-01-06.backtrace.txt
>
>
> Backtrace attached.
> {noformat}
> #0  pjsip_uri_get_scheme (rdata=0xb7401954) at /usr/include/pjsip/sip_uri.h:260
> 260	    return (*((pjsip_uri*)uri)->vptr->p_get_scheme)(uri);
> {noformat}
> In the core file, the uri pointer is NULL:
> {noformat}
> (gdb) print uri
> $1 = (const void *) 0x0
> {noformat}

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