[SR-Users] Kamailio Crash when modifying username of Request Uri

[Timo Klecker]

Hi all!

Our Kamailio (3.1.4) crashed when modifying the username-Part of a Request
URI using:

$rU = $(rU{s.strip,6});

Initial Request URI:
/sbin/kamailio[40658]: NOTICE: <script>: [ INVITE ] Got new Packet to
sip:123456:pass at sip.custom.com

The config-script now removed the first 6 chars from the username part and
would replace them in one of the following lines, but Kamailio had problems
here:

/sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
/sbin/kamailio[40658]: NOTICE: <script>:  Strip from Head: Request Username:
<null>  //  $rU
/sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
/sbin/kamailio[40658]: ERROR: <core> [action.c:801]: ERROR: do_action: bad
uri <sip::passsip.custom.com>, dropping packet


Is there maybe a error when modifying a uri with password this way? Do we
have to change this?




Ultimately Kamailio crashed:
/sbin/kamailio[40658]: ERROR: <core> [action.c:1513]: run action error at:
:0
/sbin/kamailio[40658]: ERROR: pv [pv_core.c:1761]: do action failed
/sbin/kamailio[40658]: ERROR: <core> [lvalue.c:358]: setting pvar failed
/sbin/kamailio[40658]: ERROR: <core> [lvalue.c:411]: assignment failed at
pos: (319,10-319,34)
/sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI

Like 5000 lines more of
/sbin/kamailio[40658]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
Due to rerouting internal and trying to remove more parts of the request Uri
using $rU = $(rU{s.strip,6});

Which then concluded to the following: 
/sbin/kamailio[40656]: ALERT: <core> [main.c:741]: child process 40660
exited by a signal 11
/sbin/kamailio[40656]: ALERT: <core> [main.c:744]: core was generated
/sbin/kamailio[40656]: INFO: <core> [main.c:756]: INFO: terminating due to
SIGCHLD
/sbin/kamailio[40659]: ERROR: pv [pv_core.c:251]: failed to parse the R-URI
/sbin/kamailio[40682]: INFO: <core> [main.c:807]: INFO: signal 15 received
/sbin/kamailio[40677]: INFO: <core> [main.c:807]: INFO: signal 15 received
/sbin/kamailio[40676]: INFO: <core> [main.c:807]: INFO: signal 15 received
/sbin/kamailio[40678]: INFO: <core> [main.c:807]: INFO: signal 15 received
[...]


I will try to recreate this using the new version (4.1.6) on monday. 


Kind regards

Timo Klecker 


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