[sr-dev] [kamailio/kamailio] BUG: freeing already freed pointer (0x7f19a3edec68), called from tls: tls_init.c with random core dumps (Issue #3205)

1 Aug 2022

### Description

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Explain what you did, what you expected to happen, and what actually happened.
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Im getting frequent log entries like this:
`CRITICAL: <core> [core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed
pointer (0x7f19a3edec68), called from tls: tls_init.c: ser_free(323), first free tls:
tls_init.c: ser_free(323) - ignoring`

This on a fresh VM running Ubuntu 22.04 LTS on the 5.6 branch (building latest release
tag)

As well as that log message being printed on a frequent basis (every 2 to 3 mins) i am
experiencing random crashes/restarts of kamailio.  Looking at the core dumps tls_init
seems to precipitate the core dump.

I have tried using both the TLS module, and TLSA, in the case of TLSA to rule out OpenSSL3
being an issue i have tried linking against locally built OpenSSL 3.0.5 and OpenSSL 1.1.1q
with identical results 

I am in the process of repeating the build on Ubuntu 20.04 LTS to rule out weirdness with
packages and similar issues i have experienced whilst evaluating 22.04 LTS
### Troubleshooting

#### Reproduction

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#### Debugging Data

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```
(gdb) bt full
#0  __pthread_kill_implementation (no_tid=0, signo=6, threadid=140425701996352) at
./nptl/pthread_kill.c:44
        tid = <optimized out>
        ret = 0
        pd = 0x7fb76815b740
        old_mask = {__val = {523986010119, 910533066753, 1, 140425395047168,
94230980435360, 0, 5677797456, 140425395047168, 140725986283600, 140425393986269,
94230963279192, 140425395047168, 94230963279402, 7970739754, 140725986283664,
140425394028321}}
        ret = <optimized out>
        pd = <optimized out>
        old_mask = <optimized out>
        ret = <optimized out>
        tid = <optimized out>
        ret = <optimized out>
        resultvar = <optimized out>
        resultvar = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
        __futex = <optimized out>
        resultvar = <optimized out>
        __arg3 = <optimized out>
        __arg2 = <optimized out>
        __arg1 = <optimized out>
        _a3 = <optimized out>
        _a2 = <optimized out>
        _a1 = <optimized out>
        __futex = <optimized out>
        __private = <optimized out>
        __oldval = <optimized out>
        result = <optimized out>
#1  __pthread_kill_internal (signo=6, threadid=140425701996352) at
./nptl/pthread_kill.c:78
No locals.
#2  __GI___pthread_kill (threadid=140425701996352, signo=signo@entry=6) at
./nptl/pthread_kill.c:89
No locals.
#3  0x00007fb7681a0476 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26
        ret = <optimized out>
#4  0x00007fb7681867f3 in __GI_abort () at ./stdlib/abort.c:79
        save_stage = 1
        act = {__sigaction_handler = {sa_handler = 0x100000000, sa_sigaction =
0x100000000}, sa_mask = {__val = {140425395047168, 140725986283888, 140425393986269,
140425394365984, 140425394130944, 140425394801736, 5734026312, 140725986283952,
140425394028321, 15624006419995803439,
              94230961557227, 94230963279168, 94230963279576, 140425422497024,
13020282480951897856, 72}}, sa_flags = -619194838, sa_restorer = 0x0}
        sigs = {__val = {32, 13020282480951897856, 140725986284000, 94230961610857,
13546569962021497653, 14189927350396752214, 94230962920532, 0, 94230963279402,
140425394130944, 10, 38654707763, 12, 140425395047168, 32, 1438623432}}
#5  0x000055b3dafd8f12 in qm_debug_check_frag (qm=0x7fb755bc1000, f=0x7fb7576ce500,
file=0x7fb766123154 "tls: tls_init.c", line=323, efile=0x55b3db17d559
"core/mem/q_malloc.c", eline=511) at core/mem/q_malloc.c:129
        p = 0x7fb755ca0b00
        __func__ = "qm_debug_check_frag"
#6  0x000055b3dafdd788 in qm_free (qmp=0x7fb755bc1000, p=0x7fb7576ce538,
file=0x7fb766123154 "tls: tls_init.c", func=0x7fb766124990 <__func__.0>
"ser_free", line=323, mname=0x7fb766123150 "tls") at
core/mem/q_malloc.c:511
        qm = 0x7fb755bc1000
        f = 0x7fb7576ce500
        size = 24
        next = 0x7fb7576ce500
        prev = 0x7fb7576ce3f8
        __func__ = "qm_free"
#7  0x000055b3dafe954e in qm_shm_free (qmp=0x7fb755bc1000, p=0x7fb7576ce538,
file=0x7fb766123154 "tls: tls_init.c", func=0x7fb766124990 <__func__.0>
"ser_free", line=323, mname=0x7fb766123150 "tls") at
core/mem/q_malloc.c:1350
No locals.
#8  0x00007fb7660db698 in ser_free (ptr=0x7fb7576ce538, fname=0x7fb765efa6e5
"../crypto/err/err_local.h", fline=88) at tls_init.c:323
        __func__ = "ser_free"
#9  0x00007fb765d2e907 in ERR_pop_to_mark () from /lib/x86_64-linux-gnu/libcrypto.so.3
No symbol table info available.
#10 0x00007fb765d76a42 in ?? () from /lib/x86_64-linux-gnu/libcrypto.so.3
No symbol table info available.
#11 0x00007fb765d669f5 in EVP_PKEY_set_type_by_keymgmt () from
/lib/x86_64-linux-gnu/libcrypto.so.3
No symbol table info available.
#12 0x00007fb765d5ef9a in ?? () from /lib/x86_64-linux-gnu/libcrypto.so.3
No symbol table info available.
#13 0x00007fb765d69973 in EVP_PKEY_generate () from /lib/x86_64-linux-gnu/libcrypto.so.3
No symbol table info available.
#14 0x00007fb766029279 in ?? () from /lib/x86_64-linux-gnu/libssl.so.3
No symbol table info available.
#15 0x00007fb76607a621 in ?? () from /lib/x86_64-linux-gnu/libssl.so.3
No symbol table info available.
--Type <RET> for more, q to quit, c to continue without paging--c
#16 0x00007fb7660687fd in ?? () from /lib/x86_64-linux-gnu/libssl.so.3
No symbol table info available.
#17 0x00007fb766104216 in tls_accept (c=0x7fb7576db4e8, error=0x7ffd526c58a4) at
tls_server.c:468
        ret = 1382832224
        ssl = 0x7fb75755bef0
        cert = 0x7fb75742dbb0
        tls_c = 0x7fb7574429a8
        tls_log = 1712337076
        __func__ = "tls_accept"
        pkey = 0x0
#18 0x00007fb76610f86d in tls_h_read_f (c=0x7fb7576db4e8, flags=0x7ffd526e5dac) at
tls_server.c:1173
        r = 0x7fb7576db610
        bytes_free = 16383
        bytes_read = 150
        read_size = 16383
        ssl_error = 0
        ssl_read = 0
        ssl = 0x7fb75755bef0
        rd_buf =
"\026\003\003\000\221\001\000\000\215\003\003b\347\222\177\213T\226\b\b\214\273\355\255[l\354\211\371rJ;<\033\356B\374y\024cg\352\067\000\000\020\300\060\300/\300(\300'\300,\300+\300$\300#\001\000\000T\000\000\000\022\000\020\000\000\rdr.teamsdr.uk\000\005\000\005\001\000\000\000\000\000\n\000\006\000\004\000\030\000\027\000\v\000\002\001\000\000\r\000\024\000\022\004\001\005\001\002\001\004\003\005\003\002\003\002\002\006\001\006\003\000#\000\000\000\027\000\000\377\001\000\001\000G\225
E\030j\223\313Hb\244@\271\323\030GQ\254\272\024\032z=H-\277\360\226\035qw\244\270(\004D\004\241\023\062\064\026\226\376\321\067\274\370\376?"...
        wr_buf =
"\026\003\003\000E\002\000\000A\003\003OHu\016\240\363=\252\356\260#\221\a\310ò&\237\000:FɆ\351DOWNGRD\001\000\300\060\000\000\031\377\001\000\001\000\000\000\000\000\000\v\000\004\003\000\001\002\000#\000\000\000\027\000\000\026\003\003\020\006\v\000\020\002\000\017\377\000\005x0\202\005t0\202\004\\\240\003\002\001\002\002\022\004\062_\v\313\031\021
\240[\376N\227\346\310\004e\r0\r\006\t*\206H\206\367\r\001\001\v\005\000\060\062\061\v0\t\006\003U\004\006\023\002US1\026\060\024\006\003U\004\n\023\rLet's
Encrypt1\v0\t\006\003U\004\003\023\002R30\036\027\r22070519555"...
        rd = {buf = 0x7ffd526c5a00 "\026\003\003", pos = 150, used = 150, size =
65536}
        wr = {buf = 0x7ffd526d5a00 "\026\003\003", pos = 0, used = 4096, size =
65536}
        tls_c = 0x7fb7574429a8
        enc_rd_buf = 0x0
        n = 0
        flush_flags = 1
        err_src = 0x7fb76612c9b0 "TLS read:"
        ip_buf = "172.16.51.200", '\000' <repeats 50 times>
        x = 0
        tls_dbg = 0
        __func__ = "tls_h_read_f"
#19 0x000055b3daf819f3 in tcp_read_headers (c=0x7fb7576db4e8, read_flags=0x7ffd526e5dac)
at core/tcp_read.c:441
        bytes = 4
        remaining = 0
        p = 0x7fb75736b870 "2"
        r = 0x7fb7576db610
        mc = 32695
        body_len = 22326
        mfline = 0x7fb755b9dadd <futex_release+29>
"\211E\374\203}\374\002\017\224\300\017\266\300H\205\300t6H\213E\350H\203\354\bj"
        mtransid = {s = 0x55b3db16d884 "", len = 1439304448}
        __func__ = "tcp_read_headers"
#20 0x000055b3daf8ac9d in tcp_read_req (con=0x7fb7576db4e8, bytes_read=0x7ffd526e5da8,
read_flags=0x7ffd526e5dac) at core/tcp_read.c:1469
        bytes = -1
        total_bytes = 0
        resp = 1
        size = 154618822664
        req = 0x7fb7576db610
        dst = {send_sock = 0x1, to = {s = {sa_family = 2816, sa_data =
"\312U\267\177\000\000\320\\nR\375\177\000"}, sin = {sin_family = 2816, sin_port
= 21962, sin_addr = {s_addr = 32695}, sin_zero = "\320\\nR\375\177\000"}, sin6 =
{sin6_family = 2816, sin6_port = 21962, sin6_flowinfo = 32695, sin6_addr = {__in6_u =
{__u6_addr8 = "\320\\nR\375\177\000\000\030\000\000\000\000\000\000",
__u6_addr16 = {23760, 21102, 32765, 0, 24, 0, 0, 0}, __u6_addr32 = {1382964432, 32765, 24,
0}}}, sin6_scope_id = 1382964400}, sas = {ss_family = 2816, __ss_padding =
"\312U\267\177\000\000\320\\nR\375\177\000\000\030\000\000\000\000\000\000\000\260\\nR\001\000\000\000\000\v\312U\267\177\000\000\260\\nR\375\177\000\000\335ڹU\267\177\000\000\204\330\026۳U\000\000\000\v\312U\267\177\000\000\002\000\000\000\000\000\000\000\002\000\000\000\001\000\000\000\360\\nR\375\177\000\000!\177\272U\267\177\000\000\360]nR\375\177\000\000\024]nR\375\177\000",
__ss_align = 17179869204}}, id = -619259776, send_flags = {f = 21939, blst_imask = 0},
proto = 110 'n', proto_pad0 = -11 '\365', proto_pad1 = 28435}
        c = 0 '\000'
        ret = 1438243549
        __func__ = "tcp_read_req"
#21 0x000055b3daf9072c in handle_io (fm=0x7fb766755bb8, events=1, idx=-1) at
core/tcp_read.c:1780
        ret = 8
        n = 8
        read_flags = RD_CONN_SHORT_READ
        con = 0x7fb7576db4e8
        s = 12
        resp = 140425703179696
        t = 1467216201
        ee = 0x0
        __func__ = "handle_io"
#22 0x000055b3daf7bd70 in io_wait_loop_epoll (h=0x55b3db270960 <io_w>, t=2,
repeat=0) at core/io_wait.h:1070
        n = 1
        r = 0
        fm = 0x7fb766755bb8
        revents = 1
        __func__ = "io_wait_loop_epoll"
#23 0x000055b3daf93760 in tcp_receive_loop (unix_sock=36) at core/tcp_read.c:1976
        __func__ = "tcp_receive_loop"
#24 0x000055b3daf6fdde in tcp_init_children (woneinit=0x7ffd526e6198) at
core/tcp_main.c:5236
        r = 0
        i = 7
        reader_fd_1 = 36
        pid = 0
        si_desc = "tcp receiver
(generic)\000\000\356\376\357ڳU\000\000panR\375\177\000\000\036\350\371\332\000\000\000\000\070\n\037f\000\000\000\000\313\307\025۳U\000\000\241\000nR\375\177\000\000\fj\f۳U\000\000\000\000\000\000\000\000\000\000ز\277U\267\177\000\000\036\000\000\000\000\000\000\000\020\316\363U\001\000\000\000`anR\375\177\000\000\036l\f۳U\000"
        si = 0x0
        __func__ = "tcp_init_children"
#25 0x000055b3dacbe65c in main_loop () at main.c:1851
        i = 4
        pid = 7714
        si = 0x0
        si_desc = "udp receiver child=3
sock=127.0.0.1:5050\000\060\066\060\000\000\000\000\003\000\000\000\036\000\000\000\000/a\230\356U\261\264X\307\036۳U\000\000\210\360\020۳U\000\000\000\000\000\000\000\000\000\000s\\\022۳U\000\000\036\000\000\000\000\000\000\000\260\305'h\267\177\000\000\060cnR\375\177\000\000zI\347ڳU\000"
        nrprocs = 4
        woneinit = 1
        __func__ = "main_loop"
#26 0x000055b3dacc95b0 in main (argc=11, argv=0x7ffd526e68a8) at main.c:3085
        cfg_stream = 0x55b3dc09c380
        c = -1
        r = 0
        tmp = 0x7ffd526e7e37 ""
        tmp_len = 0
        port = 0
        proto = 0
        ahost = 0x0
        aport = 0
        options = 0x55b3db112278
":f:cm:M:dVIhEeb:l:L:n:vKrRDTN:W:w:t:u:g:P:G:SQ:O:a:A:x:X:Y:"
        ret = -1
        seed = 1456913526
        rfd = 4
        debug_save = 0
        debug_flag = 0
        dont_fork_cnt = 0
        n_lst = 0x7fb768491cee <_dl_runtime_resolve_xsave+142>
        p = 0x7ffd526e68a8 "\334}nR\375\177"
        st = {st_dev = 25, st_ino = 1712, st_nlink = 2, st_mode = 16892, st_uid = 9002,
st_gid = 9002, __pad0 = 0, st_rdev = 0, st_size = 40, st_blksize = 4096, st_blocks = 0,
st_atim = {tv_sec = 1659341338, tv_nsec = 499520451}, st_mtim = {tv_sec = 1659341338,
tv_nsec = 499520451}, st_ctim = {tv_sec = 1659341338, tv_nsec = 499520451},
__glibc_reserved = {0, 0, 0}}
        tbuf = '\000' <repeats 64 times>,
"\377\000\000\000\000\000\000\000\000\377", '\000' <repeats 18
times>, "\377", '\000' <repeats 19 times>, "`",
'\000' <repeats 15 times>, "\001", '\000' <repeats 145
times>...
        option_index = 0
        long_options = {{name = 0x55b3db1146b6 "help", has_arg = 0, flag = 0x0,
val = 104}, {name = 0x55b3db10f521 "version", has_arg = 0, flag = 0x0, val =
118}, {name = 0x55b3db1146bb "alias", has_arg = 1, flag = 0x0, val = 1024},
{name = 0x55b3db1146c1 "subst", has_arg = 1, flag = 0x0, val = 1025}, {name =
0x55b3db1146c7 "substdef", has_arg = 1, flag = 0x0, val = 1026}, {name =
0x55b3db1146d0 "substdefs", has_arg = 1, flag = 0x0, val = 1027}, {name =
0x55b3db1146da "server-id", has_arg = 1, flag = 0x0, val = 1028}, {name =
0x55b3db1146e4 "loadmodule", has_arg = 1, flag = 0x0, val = 1029}, {name =
0x55b3db1146ef "modparam", has_arg = 1, flag = 0x0, val = 1030}, {name =
0x55b3db1146f8 "log-engine", has_arg = 1, flag = 0x0, val = 1031}, {name =
0x55b3db114703 "debug", has_arg = 1, flag = 0x0, val = 1032}, {name =
0x55b3db114709 "cfg-print", has_arg = 0, flag = 0x0, val = 1033}, {name =
0x55b3db114713 "atexit", has_arg = 1, flag = 0x0, val = 1034}, {name =
0x55b3db11471a "all-errors", has_arg = 0, flag = 0x0, val = 1035}, {name = 0x0,
has_arg = 0, flag = 0x0, val = 0}}
        __func__ = "main"
(gdb) info locals
tid = <optimized out>
ret = 0
pd = 0x7fb76815b740
old_mask = {__val = {523986010119, 910533066753, 1, 140425395047168, 94230980435360, 0,
5677797456, 140425395047168, 140725986283600, 140425393986269, 94230963279192,
140425395047168, 94230963279402, 7970739754, 140725986283664, 140425394028321}}
ret = <optimized out>
pd = <optimized out>
old_mask = <optimized out>
ret = <optimized out>
tid = <optimized out>
ret = <optimized out>
resultvar = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
__arg2 = <optimized out>
__arg1 = <optimized out>
_a3 = <optimized out>
_a2 = <optimized out>
_a1 = <optimized out>
__futex = <optimized out>
resultvar = <optimized out>
__arg3 = <optimized out>
__arg2 = <optimized out>
__arg1 = <optimized out>
_a3 = <optimized out>
_a2 = <optimized out>
_a1 = <optimized out>
__futex = <optimized out>
__private = <optimized out>
__oldval = <optimized out>
result = <optimized out>
(gdb) list
39      in ./nptl/pthread_kill.cq
```

#### Log Messages

<!--
Check the syslog file and if there are relevant log messages printed by Kamailio, add them
next, or attach to issue, or provide a link to download them (e.g., to a pastebin site).
-->

```
Aug  1 12:21:45 kam-test01 /usr/local/sbin/kamailio[25442]: INFO: <core>
[core/sctp_core.c:53]: sctp_core_destroy(): SCTP API not initialized
Aug  1 12:21:47 kam-test01 kamailio: INFO: <core> [core/sctp_core.c:74]:
sctp_core_check_support(): SCTP API not enabled - if you want to use it, load sctp
module
Aug  1 12:21:47 kam-test01 kamailio: INFO: <core> [core/tcp_main.c:5080]:
init_tcp(): using epoll_lt as the io watch method (auto detected)
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_mod.c:399]:
mod_init(): use OpenSSL version: 30000020
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_mod.c:401]:
mod_init(): With ECDH-Support!
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_mod.c:404]:
mod_init(): With Diffie Hellman
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: auth [auth_mod.c:345]:
mod_init(): qop set, but nonce-count (nonce_count) support disabled
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: rr
[../outbound/api.h:52]: ob_load_api(): unable to import bind_ob - maybe module is not
loaded
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: rr [rr_mod.c:188]:
mod_init(): outbound module not available
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: db_text [dbt_lib.c:146]:
dbt_cache_get_db(): using database at: /etc/kamailio/dbtext
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: WARNING: tls [tls_init.c:804]:
tls_h_mod_init_f(): tls: openssl bug #1491 (crash/mem leaks on low memory) workaround
disabled
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[main.c:3062]: main(): processes (at least): 30 - shm size: 134217728 - pkg size:
33554432
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992 for fd
9
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[core/udp_server.c:207]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984 on fd 9
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992 for fd
10
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[core/udp_server.c:207]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984 on fd
10
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[core/udp_server.c:154]: probe_max_receive_buffer(): SO_RCVBUF is initially 212992 for fd
11
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[core/udp_server.c:207]: probe_max_receive_buffer(): SO_RCVBUF is finally 425984 on fd
11
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:328]:
ksr_tls_fill_missing(): TLSs<default>: tls_method=20
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:340]:
ksr_tls_fill_missing(): TLSs<default>:
certificate='/etc/kamailio/livecert/fullchain.pem'
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:347]:
ksr_tls_fill_missing(): TLSs<default>:
ca_list='/etc/kamailio/livecert/chain.pem'
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:354]:
ksr_tls_fill_missing(): TLSs<default>: ca_path='(null)'
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:361]:
ksr_tls_fill_missing(): TLSs<default>: crl='(null)'
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:364]:
ksr_tls_fill_missing(): TLSs<default>: require_certificate=0
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:372]:
ksr_tls_fill_missing(): TLSs<default>: cipher_list='AES256-SHA'
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:379]:
ksr_tls_fill_missing(): TLSs<default>:
private_key='/etc/kamailio/livecert/privkey.pem'
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:382]:
ksr_tls_fill_missing(): TLSs<default>: verify_certificate=0
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:386]:
ksr_tls_fill_missing(): TLSs<default>: verify_depth=9
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:389]:
ksr_tls_fill_missing(): TLSs<default>: verify_client=0
Aug  1 12:21:47 kam-test01 /usr/local/sbin/kamailio[25502]: NOTICE: tls
[tls_domain.c:1144]: ksr_tls_fix_domain(): registered server_name callback handler for
socket [:0], server_name='<default>' ...
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:750]:
set_verification(): TLSs<default>: No client certificate required and no checks
performed
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:328]:
ksr_tls_fill_missing(): TLSc<default>: tls_method=18
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:340]:
ksr_tls_fill_missing(): TLSc<default>:
certificate='/etc/kamailio/livecert/fullchain.pem'
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:347]:
ksr_tls_fill_missing(): TLSc<default>:
ca_list='/etc/kamailio/livecert/chain.pem'
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:354]:
ksr_tls_fill_missing(): TLSc<default>: ca_path='(null)'
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:361]:
ksr_tls_fill_missing(): TLSc<default>: crl='(null)'
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:364]:
ksr_tls_fill_missing(): TLSc<default>: require_certificate=0
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:372]:
ksr_tls_fill_missing(): TLSc<default>:
cipher_list='ECDHE-RSA-AES256-GCM-SHA384'
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:379]:
ksr_tls_fill_missing(): TLSc<default>:
private_key='/etc/kamailio/livecert/privkey.pem'
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:382]:
ksr_tls_fill_missing(): TLSc<default>: verify_certificate=0
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:386]:
ksr_tls_fill_missing(): TLSc<default>: verify_depth=9
Aug  1 12:21:49 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:389]:
ksr_tls_fill_missing(): TLSc<default>: verify_client=0
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:753]:
set_verification(): TLSc<default>: Server MAY present invalid certificate
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:328]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: tls_method=22
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:340]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
certificate='/etc/kamailio/livecert/fullchain.pem'
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:347]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
ca_list='/etc/kamailio/livecert/chain.pem'
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:354]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: ca_path='(null)'
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:361]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: crl='(null)'
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:364]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: require_certificate=0
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:372]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
cipher_list='ECDHE-RSA-AES256-GCM-SHA384'
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:379]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
private_key='/etc/kamailio/livecert/privkey.pem'
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:382]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_certificate=0
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:386]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_depth=9
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:389]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_client=0
Aug  1 12:21:50 kam-test01 /usr/local/sbin/kamailio[25502]: NOTICE: tls
[tls_domain.c:1144]: ksr_tls_fix_domain(): registered server_name callback handler for
socket [172.16.51.200:5067], server_name='test2.test.com' ...
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:750]:
set_verification(): TLSs<172.16.51.200:5067>: No client certificate required and no
checks performed
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:328]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: tls_method=22
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:340]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
certificate='/etc/kamailio/livecert/fullchain.pem'
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:347]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
ca_list='/etc/kamailio/livecert/chain.pem'
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:354]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: ca_path='(null)'
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:361]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: crl='(null)'
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:364]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: require_certificate=0
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:372]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
cipher_list='ECDHE-RSA-AES256-GCM-SHA384'
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:379]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
private_key='/etc/kamailio/livecert/privkey.pem'
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:382]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_certificate=0
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:386]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_depth=9
Aug  1 12:21:51 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:389]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_client=0
Aug  1 12:21:52 kam-test01 /usr/local/sbin/kamailio[25502]: NOTICE: tls
[tls_domain.c:1144]: ksr_tls_fix_domain(): registered server_name callback handler for
socket [172.16.51.200:5067], server_name='test.test.com' ...
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:750]:
set_verification(): TLSs<172.16.51.200:5067>: No client certificate required and no
checks performed
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:328]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: tls_method=22
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:340]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
certificate='/etc/kamailio/livecert/fullchain.pem'
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:347]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
ca_list='/etc/kamailio/livecert/chain.pem'
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:354]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: ca_path='(null)'
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:361]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: crl='(null)'
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:364]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: require_certificate=0
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:372]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
cipher_list='ECDHE-RSA-AES256-GCM-SHA384'
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:379]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>:
private_key='/etc/kamailio/livecert/privkey.pem'
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:382]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_certificate=0
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:386]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_depth=9
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:389]:
ksr_tls_fill_missing(): TLSs<172.16.51.200:5067>: verify_client=0
Aug  1 12:21:53 kam-test01 /usr/local/sbin/kamailio[25502]: NOTICE: tls
[tls_domain.c:1144]: ksr_tls_fix_domain(): registered server_name callback handler for
socket [172.16.51.200:5067], server_name='test3.test.com' ...
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:750]:
set_verification(): TLSs<172.16.51.200:5067>: No client certificate required and no
checks performed
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:328]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: tls_method=18
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:340]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>:
certificate='/etc/kamailio/livecert/fullchain.pem'
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:347]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>:
ca_list='/etc/kamailio/livecert/chain.pem'
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:354]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: ca_path='(null)'
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:361]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: crl='(null)'
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:364]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: require_certificate=0
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:372]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>:
cipher_list='ECDHE-RSA-AES256-GCM-SHA384'
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:379]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>:
private_key='/etc/kamailio/livecert/privkey.pem'
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:382]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: verify_certificate=0
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:386]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: verify_depth=9
Aug  1 12:21:54 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:389]:
ksr_tls_fill_missing(): TLSc<172.16.51.200:5067>: verify_client=0
Aug  1 12:21:56 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: tls [tls_domain.c:753]:
set_verification(): TLSc<172.16.51.200:5067>: Server MAY present invalid
certificate
Aug  1 12:21:56 kam-test01 /usr/local/sbin/kamailio[25504]: INFO: rtpengine
[rtpengine.c:2929]: rtpp_test(): rtpengine instance <udp:127.0.0.1:2223> found,
support for it enabled
Aug  1 12:21:56 kam-test01 /usr/local/sbin/kamailio[25520]: INFO: jsonrpcs
[jsonrpcs_sock.c:443]: jsonrpc_dgram_process(): a new child 0/25520
Aug  1 12:21:56 kam-test01 /usr/local/sbin/kamailio[25523]: INFO: ctl [io_listener.c:213]:
io_listen_loop(): io_listen_loop:  using epoll_lt io watch method (config)
Aug  1 12:21:57 kam-test01 /usr/local/sbin/kamailio[25525]: ERROR: <script>: 758:No
dispatcher sets up yet
Aug  1 12:21:57 kam-test01 /usr/local/sbin/kamailio[25525]: ERROR: <script>: 758:No
dispatcher sets up yet
Aug  1 12:21:57 kam-test01 /usr/local/sbin/kamailio[25525]: WARNING: <script>:
548:[LOCATION] Location not found rc: -1
sip:lPBKm2s70BBd6u@sipuat.voicesimplified.com;transport=TLS
Aug  1 12:21:57 kam-test01 /usr/local/sbin/kamailio[25525]: ERROR: <script>: 758:No
dispatcher sets up yet
Aug  1 12:21:59 kam-test01 /usr/local/sbin/kamailio[25532]: ERROR: <core>
[core/tcp_main.c:4672]: tcpconn_main_timeout(): connect 185.29.208.21:5061 failed
(timeout)
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25508]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25510]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25511]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25508]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25504]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25505]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:06 kam-test01 /usr/local/sbin/kamailio[25504]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:07 kam-test01 /usr/local/sbin/kamailio[25506]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:07 kam-test01 /usr/local/sbin/kamailio[25505]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:07 kam-test01 /usr/local/sbin/kamailio[25506]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:07 kam-test01 /usr/local/sbin/kamailio[25507]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:07 kam-test01 /usr/local/sbin/kamailio[25506]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:22:07 kam-test01 /usr/local/sbin/kamailio[25506]: NOTICE: <script>:
Destination up: sip:redacted
Aug  1 12:24:48 kam-test01 /usr/local/sbin/kamailio[25525]: INFO: <script>: R-URI
Alias Found and processed
Aug  1 12:24:48 kam-test01 /usr/local/sbin/kamailio[25510]: INFO: <script>: R-URI
Alias Found and processed
Aug  1 12:26:06 kam-test01 /usr/local/sbin/kamailio[25513]: WARNING: tm [t_reply.c:1677]:
t_retransmit_reply(): no resolved dst to retransmit
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25526]: CRITICAL: <core>
[core/mem/q_malloc.c:519]: qm_free(): BUG: freeing already freed pointer (0x7f7a8a860d80),
called from tls: tls_init.c: ser_free(323), first free tls: tls_init.c: ser_free(323) -
ignoring
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25532]: CRITICAL: <core>
[core/pass_fd.c:277]: receive_fd(): EOF on 36
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25502]: ALERT: <core>
[main.c:776]: handle_sigs(): child process 25526 exited by a signal 11
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25502]: ALERT: <core>
[main.c:779]: handle_sigs(): core was generated
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25502]: INFO: <core>
[main.c:801]: handle_sigs(): terminating due to SIGCHLD
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25532]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25513]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25531]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25522]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25521]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25525]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25520]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25514]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25529]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25511]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25515]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25509]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25519]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25516]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25517]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25512]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25510]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25506]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25504]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25524]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25518]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25523]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25508]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25528]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25530]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25505]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25507]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
Aug  1 12:27:17 kam-test01 /usr/local/sbin/kamailio[25527]: INFO: <core>
[main.c:856]: sig_usr(): signal 15 received
```

### Additional Information
Tested against kamailio 5.6 and devel branches with a distclean between builds

```
(paste your output here)
```

* **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 `lsb_release -a` and `uname -a`)
-->

```
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 22.04.1 LTS
Release:        22.04
Codename:       jammy

Linux kam-test01 5.15.0-1014-azure #17-Ubuntu SMP Thu Jun 23 19:04:16 UTC 2022 x86_64
x86_64 x86_64 GNU/Linux
```

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[sr-dev] [kamailio/kamailio] BUG: freeing already freed pointer (0x7f19a3edec68), called from tls: tls_init.c with random core dumps (Issue #3205)