[sr-dev] crash if app_jsdt app_sqlang modules loaded together

[Henning Westerholt]

Hello,

the app_jsdt and app_sqlang modules crash kamailio git master if they are 
loaded together. Found by extending the "2.sh" unit test. Can be reproduced by 
commenting the app_sqlang loadmodule in. Both modules load if only one of them 
is loaded a time.

Core was generated by `../../src/kamailio -L ../../src/modules -Y . -P ./
kamailio.pid -w . -f 2.cfg'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  0x00007f0917a34351 in _IO_vfprintf_internal (s=s at entry=0x7ffe020da330, 
format=<optimized out>, format at entry=0x7f09169fc132 "%s", 
ap=ap at entry=0x7ffe020da498) at vfprintf.c:1631
1631    vfprintf.c: Datei oder Verzeichnis nicht gefunden.
(gdb) bt full
#0  0x00007f0917a34351 in _IO_vfprintf_internal (s=s at entry=0x7ffe020da330, 
format=<optimized out>, format at entry=0x7f09169fc132 "%s", 
ap=ap at entry=0x7ffe020da498) at vfprintf.c:1631
[....]
#1  0x00007f0917a5d2f9 in _IO_vsnprintf (string=0x7ffe020da580 "", 
maxlen=<optimized out>, format=0x7f09169fc132 "%s", 
args=args at entry=0x7ffe020da498) at vsnprintf.c:119
[......]
#2  0x00007f0917a3ac32 in __snprintf (s=<optimized out>, maxlen=<optimized 
out>, format=<optimized out>) at snprintf.c:33
        arg = {{gp_offset = 32, fp_offset = 48, overflow_arg_area = 
0x7ffe020da570, reg_save_area = 0x7ffe020da4b0}}
        done = 0
#3  0x00007f09169a9cf8 in sqlang_open_KSR (J=0x1478e70) at app_sqlang_api.c:
1541
        _sr_crt_J_KSRMethods = 0x1485910
        emods = 0xad6200 <_sr_kemi_modules>
        emods_size = 4
        i = 2
        k = 400070208
        n = 58
        mname = "\002", '\000' <repeats 11 times>, "\061", '\000' <repeats 11 
times>, "@\226\330\027\060", '\000' <repeats 19 times>, "[\000\000\000n", 
'\000' <repeats 23 times>, "|
\000\000\000\004\000\000\000\000\000\000\000\377\377\377\377\377\377\377\377\t
\000\000\000\000\000\000\000\340\217G
\001\000\000\000\000\002\000\000\000\000\000\000\000\001\000\000\000\062\000\000"
        malias = "\000H\211\345H\203\354\020H\211}\370H\213E
\370\276\001\000\000ss\000\000@\226\330\027\t
\177\000\000\020\001\000\000\000\000\000\000\020\022H
\001\000\000\000\000\260NH\001\000\000\000\000\360e\246\027\t
\177\000\000\004\000\000\000\000\000\000\000\220\021H\001\000\000\000\000@
\226\330\027\t\177\000\000\000\001\000\000\000\000\000\000\200\021H
\001\000\000\000\000\020\001\000\000\000\000\000\000\220\000\000\000\000\000\000\000'{\246\027\t
\177\000\000\240\020H\001\000\000\000\000\000\220G
\001\000\000\000\000\200\246\r\002\376\177\000\000\240ݝ\026\t
\177\000\000\002\000\000\005\000\000\000\000\b
\000\000\000\000\000\000\000\020\020G\001\000\000\000\000 \016H
\001\000\000\000\000\020\220G\001\000\000\000\000\002"...
        __func__ = "sqlang_open_KSR"
#4  0x00007f09169aaf46 in sqlang_sr_kemi_register_libs (J=0x1478e70) at 
app_sqlang_api.c:1603
        ret = 0
        __func__ = "sqlang_sr_kemi_register_libs"
#5  0x00007f091699f108 in sqlang_sr_init_child () at app_sqlang_api.c:903
        __func__ = "sqlang_sr_init_child"

Best regards,

Henning

-- 
Henning Westerholt - https://skalatan.de/blog/
Kamailio services - https://skalatan.de/services
Kamailio security assessment - https://skalatan.de/de/assessment