6 Oct
2023
6 Oct
'23
9:16 p.m.
### Description
Build kamailio master branch and define `TLS_MALLOC_DBG` in the `tls` module.
There is an immediate segfault on startup.
### Troubleshooting
Build kamailio master branch without `TLS_MALLOC_DBG` in the `tls` module.
kamailio can start normally.
#### Reproduction
* use a distro with OpenSSL 3, e.g., AlmaLinux 9, Debian 12
* checkout kamailio master branch
* in `src/modules/tls/tls_init.c` define `TLS_MALLOC_DBG`
* build and run kamailio
#### Debugging Data
```
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0x0000000000000000 in ?? ()
(gdb) bt
#0 0x0000000000000000 in ?? ()
#1 0x00007efcca8f59ac in ser_malloc (size=56, file=0x7efc8a3399e3
"crypto/threads_pthread.c", line=50) at tls_init.c:269
#2 0x00007efc8a1b0b6e in CRYPTO_zalloc (num=56, file=<optimized out>,
line=<optimized out>) at crypto/mem.c:197
#3 0x00007efc8a1bd7b4 in CRYPTO_THREAD_lock_new () at crypto/threads_pthread.c:50
#4 0x00007efc8a1b38cd in ossl_init_base () at crypto/init.c:64
#5 ossl_init_base_ossl_ () at crypto/init.c:55
#6 0x00007efcca6a4a48 in __pthread_once_slow (once_control=0x7efc8a42db84 <base>,
init_routine=0x7efc8a1b38c0 <ossl_init_base_ossl_>)
at pthread_once.c:117
#7 0x00007efc8a1bd92d in CRYPTO_THREAD_run_once (once=<optimized out>,
init=<optimized out>) at crypto/threads_pthread.c:156
#8 0x00007efc8a1b823a in OPENSSL_init_crypto (settings=0x0, opts=131148) at
crypto/init.c:507
#9 OPENSSL_init_crypto (opts=opts@entry=131148, settings=0x0) at crypto/init.c:462
#10 0x00007efcca84edf7 in OPENSSL_init_ssl (settings=<optimized out>, opts=131148)
at ssl/ssl_init.c:115
#11 OPENSSL_init_ssl (opts=<optimized out>, settings=<optimized out>) at
ssl/ssl_init.c:91
#12 0x00007efcca8f88ec in tls_h_mod_pre_init_f () at tls_init.c:767
#13 0x00000000006e5524 in pre_init_tls () at core/tls_hooks.c:68
#14 0x00000000004389d4 in main (argc=11, argv=0x7ffcb25aae08) at main.c:3141
```
### Additional Information
* **Kamailio Version** - output of `kamailio -v`
```
version: kamailio 5.8.0-dev1 (x86_64/linux) cd6d03
flags: USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST,
DNS_IP_HACK, SHM_MMAP, PKG_MALLOC, MEM_JOIN_FREE, 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_BLOCKLIST, HAVE_RESOLV_RES, TLS_PTHREAD_MUTEX_SHARED
ADAPTIVE_WAIT_LOOPS 1024, MAX_RECV_BUFFER_SIZE 262144, MAX_SEND_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: cd6d03
compiled on 08:53:04 Oct 7 2023 with gcc 11.3.1
```
* **Operating System**:
```
NAME="AlmaLinux"
VERSION="9.2 (Turquoise Kodkod)"
ID="almalinux"
ID_LIKE="rhel centos fedora"
VERSION_ID="9.2"
PLATFORM_ID="platform:el9"
PRETTY_NAME="AlmaLinux 9.2 (Turquoise Kodkod)"
ANSI_COLOR="0;34"
LOGO="fedora-logo-icon"
CPE_NAME="cpe:/o:almalinux:almalinux:9::baseos"
HOME_URL="https://almalinux.org/"
DOCUMENTATION_URL="https://wiki.almalinux.org/"
BUG_REPORT_URL="https://bugs.almalinux.org/"
ALMALINUX_MANTISBT_PROJECT="AlmaLinux-9"
ALMALINUX_MANTISBT_PROJECT_VERSION="9.2"
REDHAT_SUPPORT_PRODUCT="AlmaLinux"
REDHAT_SUPPORT_PRODUCT_VERSION="9.2"
5.14.0-284.30.1.el9_2.x86_64 #1 SMP PREEMPT_DYNAMIC Tue Sep 12 09:28:32 EDT 2023 x86_64
x86_64 x86_64 GNU/Linux
```
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