24 Nov
2020
24 Nov
'20
3:11 p.m.
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### Description
Kamailio crashes on launch with TLS enabled on both Ubuntu 20.04 and Debian Buster.
### Troubleshooting
#### Reproduction
<!--
If the issue can be reproduced, describe how it can be done.
-->
1. cloned `https://github.com/kamailio/kamailio`
2. checked out `5.4`
3. make cfg
4. include_modules=app_python3 crypto db_mongodb
db_postgres dialplan http_async_client
http_client jansson json jsonrpcc log_systemd
outbound regex tls utils xcap_client xhttp_pi
uuid
5. make all
6. make install
7. make install-systemd-debian
8. turn on TLS (WITH_TLS), copy certs & keys.
9. sudo systemctl start kamailio
#### Log Messages
```
Nov 20 00:20:06 kamailio-stage-3 /usr/local/sbin/kamailio[12570]: INFO: tls
[tls_mod.c:389]: mod_init(): With ECDH-Support!
Nov 20 00:20:06 kamailio-stage-3 /usr/local/sbin/kamailio[12570]: INFO: tls
[tls_mod.c:392]: mod_init(): With Diffie Hellman
Nov 20 00:20:06 kamailio-stage-3 kamailio[12569]: DIGEST-MD5 common mech free
Nov 20 00:20:06 kamailio-stage-3 /usr/local/sbin/kamailio[12570]: INFO: auth
[auth_mod.c:345]: mod_init(): qop set, but nonce-count (nonce_count) support disabled
Nov 20 00:20:06 kamailio-stage-3 /usr/local/sbin/kamailio[12570]: INFO: rr
[../outbound/api.h:52]: ob_load_api(): unable to import bind_ob - maybe module is not
loaded
Nov 20 00:20:06 kamailio-stage-3 /usr/local/sbin/kamailio[12570]: INFO: rr [rr_mod.c:185]:
mod_init(): outbound module not available
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: ERROR: <core>
[core/daemonize.c:303]: daemonize(): Main process exited before writing to pipe
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb43de8),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb44098),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_malloc(293) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb94230),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb41890),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb34998),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb347b8),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb34858),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_malloc(293) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 kamailio[12568]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f09fdb348f8),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_malloc(293) -
ignoring
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: kamailio.service: Control process exited,
code=killed, status=11/SEGV
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: kamailio.service: Failed with result
'signal'.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: Failed to start kamailio (OpenSER) - the Open
Source SIP Server.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: kamailio.service: Service RestartSec=100ms
expired, scheduling restart.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: kamailio.service: Scheduled restart job,
restart counter is at 57.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: Stopped kamailio (OpenSER) - the Open Source
SIP Server.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: kamailio.service: Start request repeated too
quickly.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: kamailio.service: Failed with result
'signal'.
Nov 20 00:20:06 kamailio-stage-3 systemd[1]: Failed to start kamailio (OpenSER) - the Open
Source SIP Server.
```
### Possible Solutions
As a hack, we manually downgraded to https://www.openssl.org/source/openssl-1.0.2r.tar.gz
and that seemed to allow the system to launch, but this is obviously not a stable,
long-term solution.
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.4.2 (x86_64/linux) 2d733e
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, Q_MALLOC, F_MALLOC, TLSF_MALLOC, DBG_SR_MEMORY,
USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR,
USE_DST_BLACKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_URI_SIZE 1024, BUF_SIZE 65535,
DEFAULT PKG_SIZE 8MB
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
id: 2d733e
compiled on 23:01:51 Nov 19 2020 with gcc 8.3.0
```
* **Operating System**:
<!--
Details about the operating system, the type: Linux (e.g.,: Debian 8.4, Ubuntu 16.04,
CentOS 7.1, ...), MacOS, xBSD, Solaris, ...;
Kernel details (output of `uname -a`)
-->
```
root@kamailio-stage-3:/home/admin# lsb_release -a
No LSB modules are available.
Distributor ID: Debian
Description: Debian GNU/Linux 10 (buster)
Release: 10
Codename: buster
root@kamailio-stage-3:/home/admin# uname -a
Linux kamailio-stage-3 4.19.0-12-cloud-amd64 #1 SMP Debian 4.19.152-1 (2020-10-18) x86_64
GNU/Linux
ubuntu@kamailio-stage-2:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 20.04.1 LTS
Release: 20.04
Codename: focal
ubuntu@kamailio-stage-2:~$ uname -a
Linux kamailio-stage-2 5.4.0-1029-aws #30-Ubuntu SMP Tue Oct 20 10:06:38 UTC 2020 x86_64
x86_64 x86_64 GNU/Linux
```
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