<p>Hello,</p>
<p>Kamailio is crashing when I'm trying to set the parameter;</p>
<p><code>modparam("tm|usrloc", "xavp_contact", "ulattrs") </code><br>
The crash is happening when I'm register 2 devices with the same extension.</p>
<p>This is the core dump:</p>
<h4>Reproduction</h4>
<p>Set the following parameter:</p>
<p><code>modparam("tm|usrloc", "xavp_contact", "ulattrs") </code></p>
<p>and register the same extension from 2 different devices. Then send an message to them (NOTIFY/OPTION/INVITE etc)</p>
<h4>Debugging Data</h4>
<p>[Thread debugging using libthread_db enabled]<br>
Using host libthread_db library "/lib64/libthread_db.so.1".<br>
Core was generated by `/usr/local/sbin/kamailio -P<br>
/var/run/kamailio/kamailio.pid -f /usr/local/etc/ka'.<br>
Program terminated with signal 11, Segmentation fault.<br>
#0  0x000000000057cca2 in xavp_get_internal (name=0x8, list=0x0, idx=0,<br>
prv=0x0) at core/xavp.c:288<br>
288     core/xavp.c: No such file or directory.</p>
<p>(gdb) bt<br>
#0  0x000000000057cca2 in xavp_get_internal (name=0x8, list=0x0, idx=0,<br>
prv=0x0) at core/xavp.c:288<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="31891578" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/1" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/1/hovercard" href="https://github.com/kamailio/kamailio/issues/1">#1</a>  0x0000000000581869 in xavp_insert (xavp=0x0, idx=0, list=0x0) at<br>
core/xavp.c:752<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="41491271" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/2" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/2/hovercard" href="https://github.com/kamailio/kamailio/pull/2">#2</a>  0x00007f05be0ee3a1 in ki_t_next_contacts (msg=0x7f05cb76c218) at<br>
t_serial.c:552<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="48744343" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/3" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/3/hovercard" href="https://github.com/kamailio/kamailio/pull/3">#3</a>  0x00007f05be0f09e8 in t_next_contacts (msg=0x7f05cb76c218, key=0x0,<br>
value=0x0) at t_serial.c:756<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="49856885" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/4" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/4/hovercard" href="https://github.com/kamailio/kamailio/pull/4">#4</a>  0x0000000000434d41 in do_action (h=0x7ffe93c9cad0, a=0x7f05cb642250,<br>
msg=0x7f05cb76c218) at core/action.c:1067<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="51480460" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/5" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/5/hovercard" href="https://github.com/kamailio/kamailio/issues/5">#5</a>  0x00000000004418e8 in run_actions (h=0x7ffe93c9cad0, a=0x7f05cb642250,<br>
msg=0x7f05cb76c218) at core/action.c:1572<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="51489870" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/6" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/6/hovercard" href="https://github.com/kamailio/kamailio/issues/6">#6</a>  0x0000000000441fa9 in run_actions_safe (h=0x7ffe93c9de90,<br>
a=0x7f05cb642250, msg=0x7f05cb76c218) at core/action.c:1636<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="51492477" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/7" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/7/hovercard" href="https://github.com/kamailio/kamailio/issues/7">#7</a>  0x000000000065734e in rval_get_int (h=0x7ffe93c9de90,<br>
msg=0x7f05cb76c218, i=0x7ffe93c9cf78, rv=0x7f05cb642570, cache=0x0) at<br>
core/rvalue.c:912<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="51499233" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/8" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/8/hovercard" href="https://github.com/kamailio/kamailio/issues/8">#8</a>  0x000000000065b8fe in rval_expr_eval_int (h=0x7ffe93c9de90,<br>
msg=0x7f05cb76c218, res=0x7ffe93c9cf78, rve=0x7f05cb642568) at<br>
core/rvalue.c:1910<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="51703057" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/9" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/9/hovercard" href="https://github.com/kamailio/kamailio/issues/9">#9</a>  0x000000000065bd51 in rval_expr_eval_int (h=0x7ffe93c9de90,<br>
msg=0x7f05cb76c218, res=0x7ffe93c9d42c, rve=0x7f05cb642c98) at<br>
core/rvalue.c:1918<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="52436308" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/10" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/10/hovercard" href="https://github.com/kamailio/kamailio/pull/10">#10</a> 0x0000000000434807 in do_action (h=0x7ffe93c9de90, a=0x7f05cb645028,<br>
msg=0x7f05cb76c218) at core/action.c:1043<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="52569646" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/11" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/11/hovercard" href="https://github.com/kamailio/kamailio/issues/11">#11</a> 0x00000000004418e8 in run_actions (h=0x7ffe93c9de90, a=0x7f05cb637e48,<br>
msg=0x7f05cb76c218) at core/action.c:1572<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="52744476" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/12" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/12/hovercard" href="https://github.com/kamailio/kamailio/pull/12">#12</a> 0x0000000000431767 in do_action (h=0x7ffe93c9de90, a=0x7f05cb583858,<br>
msg=0x7f05cb76c218) at core/action.c:691<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="52784350" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/13" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/13/hovercard" href="https://github.com/kamailio/kamailio/pull/13">#13</a> 0x00000000004418e8 in run_actions (h=0x7ffe93c9de90, a=0x7f05cb574750,<br>
msg=0x7f05cb76c218) at core/action.c:1572<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="52819753" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/14" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/14/hovercard" href="https://github.com/kamailio/kamailio/pull/14">#14</a> 0x0000000000442071 in run_top_route (a=0x7f05cb574750,<br>
msg=0x7f05cb76c218, c=0x0) at core/action.c:1657<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="52852064" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/15" data-hovercard-type="issue" data-hovercard-url="/kamailio/kamailio/issues/15/hovercard" href="https://github.com/kamailio/kamailio/issues/15">#15</a> 0x00000000005874a9 in receive_msg (buf=0xa6ec00 <buf.6868> "OPTIONS<br>
sip:10 at 192.168.0.231:5060 SIP/2.0\r\nVia: SIP/2.0/UDP<br>
192.168.0.231;branch=z9hG4bKd8a9.1b3abe656532065414a2f35a8916008d.1\r\nVia:<br>
SIP/2.0/UDP 192.168.0.131:5060;received=192.168.0.131;branch=z9hG"...,<br>
len=694, rcv_info=0x7ffe93c9e4d0) at core/receive.c:341<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="53297477" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/16" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/16/hovercard" href="https://github.com/kamailio/kamailio/pull/16">#16</a> 0x000000000047bf81 in udp_rcv_loop () at core/udp_server.c:541<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="53387906" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/17" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/17/hovercard" href="https://github.com/kamailio/kamailio/pull/17">#17</a> 0x0000000000424f9d in main_loop () at main.c:1669<br>
<a class="issue-link js-issue-link" data-error-text="Failed to load issue title" data-id="53397137" data-permission-text="Issue title is private" data-url="https://github.com/kamailio/kamailio/issues/18" data-hovercard-type="pull_request" data-hovercard-url="/kamailio/kamailio/pull/18/hovercard" href="https://github.com/kamailio/kamailio/pull/18">#18</a> 0x000000000042c688 in main (argc=13, argv=0x7ffe93c9ea18) at main.c:2710</p>
<h3>Additional Information</h3>
<ul>
<li><strong>Kamailio Version</strong> - output of <code>kamailio -v</code></li>
</ul>
<pre><code>version: kamailio 5.2.5 (x86_64/linux) 18444d
</code></pre>
<ul>
<li><strong>Operating System</strong>:</li>
</ul>

<pre><code>Linux 3.10.0-1062.4.3.el7.x86_64 #1 SMP Wed Nov 13 23:58:53 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux CentOS 7```
</code></pre>

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