[sr-dev] [tracker] Task opened: Crash if t_release() is executed after t_relay_to(), when this last returns -1

[sip-router]

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A new Flyspray task has been opened.  Details are below. 

User who did this - Iñaki Baz Castillo (ibc) 

Attached to Project - sip-router
Summary - Crash if t_release() is executed after t_relay_to(), when this last returns -1
Task Type - Bug Report
Category - tm
Status - Assigned
Assigned To - Andrei Pelinescu-Onciul
Operating System - All
Severity - High
Priority - Normal
Reported Version - Development
Due in Version - Undecided
Due Date - Undecided
Details - Kamailio 3.2 is crashing if t_release() is executed after t_relay_to() returns -1:

---

if ! t_relay_to() {
 t_release();
}

---

Error -1 is generated in t_relay_to, in this case, when trying to reach a domainname which hasn't got a DNS record.


Here the log of the execution of t_relay_to:

ERROR: <core> [resolve.c:1540]: ERROR: sip_hostport2su: could not resolve hostname: "proxy1.jssip.net"
ERROR: tm [ut.h:318]: failed to resolve "proxy1.jssip.net"
ERROR: tm [t_fwd.c:1528]: ERROR: t_forward_nonack: failure to add branches
ERROR: tm [tm.c:1369]: ERROR: w_t_relay_to: t_relay_to failed
WARNING: script | uovyxruroybhnsy | call | t_relay(): -1 generic internal error

This is the log for the execution of t_release():

<core> [mem/q_malloc.c:457]: BUG: qm_free: freeing already freed pointer, first free: tm: h_table.c: free_cell(157) - aborting
ALERT: <core> [main.c:745]: child process 24217 exited by a signal 6
ALERT: <core> [main.c:748]: core was not generated
INFO: <core> [main.c:760]: INFO: terminating due to SIGCHLD
INFO: <core> [main.c:811]: INFO: signal 15 received

More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=184

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