Segmentation fault with prosody/liblua (Entware)

[Rooby69]

Description:

Hello I got the info from entware member that I should contact you
Entware/Entware#107

I have issues with prosody(v0.9.12) and the liblua (v5.1.5) in entware on ASUS router RT-AC88U.
The prosody daemon crashes. gdb log:

Program received signal SIGSEGV, Segmentation fault.
0x2abf09a0 in luaL_addlstring () from /opt/lib/liblua.so.5.1.5
(gdb) bt
#0 0x2abf09a0 in luaL_addlstring () from /opt/lib/liblua.so.5.1.5
#1 0x2abefef8 in ?? () from /opt/lib/liblua.so.5.1.5
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

Can you pleas update liblua and prosody.
Prosody has already a new scurity release 0.10.2 see
http://blog.prosody.im/prosody-0-10-2-security-release/

Thanks

[dibdot]

Please always inform the package maintainer: @heil
Also please try to reproduce your issue with a current/supported OpenWrt release - with logs, dumps etc.

[Rooby69]

Unfrtunately I do not have any additional logs, dumps etc. I' not a linux expert.
I'm running prosody which uses liblua and cashes with the segmentation fault shown above.
Router is a RT-AC88U running Asus Merlin SW with Entware.
I try to update liblua by myself with a more recent version but did not manage yet.
Maybe someone can give me an udated make file. and patch files for latest stable version.

[Rooby69]

I managed to get liblua compiled with symbols:

Program received signal SIGSEGV, Segmentation fault.
0x2ac589a0 in luaL_addlstring (B=0x7ed922e4, s=0x19c9000 <error: Cannot access memory at address 0x19c9000>, l=) at lauxlib.c:448
448 lauxlib.c: No such file or directory.
(gdb) bt
#0 0x2ac589a0 in luaL_addlstring (B=0x7ed922e4, s=0x19c9000 <error: Cannot access memory at address 0x19c9000>, l=) at lauxlib.c:448
#1 0x2aadf730 in buffer_meth_receive () from /opt/lib/lua/ssl.so
#2 0x2ac4c2bc in luaD_precall (L=L@entry=0x23008, func=, func@entry=0x1399a8, nresults=nresults@entry=3) at ldo.c:320
#3 0x2ac56c24 in luaV_execute (L=L@entry=0x23008, nexeccalls=2355992, nexeccalls@entry=1) at lvm.c:847
#4 0x2ac4c73c in luaD_call (L=0x23008, func=0x1398d8, nResults=-1) at ldo.c:378
#5 0x2ac4bb30 in luaD_rawrunprotected (L=0x2ac4bb30 <luaD_rawrunprotected+76>, L@entry=0x23008, f=0x23008, ud=0x23008, ud@entry=0x7ed945a8) at ldo.c:116
#6 0x2ac4c898 in luaD_pcall (L=L@entry=0x23008, func=, u=u@entry=0x7ed945a8, old_top=224, ef=208) at ldo.c:464
#7 0x2ac48368 in lua_pcall (L=L@entry=0x23008, nargs=nargs@entry=0, nresults=nresults@entry=-1, errfunc=errfunc@entry=1) at lapi.c:881
#8 0x2ac59348 in luaB_xpcall (L=0x23008) at lbaselib.c:396
#9 0x2ac4c2bc in luaD_precall (L=L@entry=0x23008, func=, func@entry=0x1398b8, nresults=nresults@entry=-1) at ldo.c:320
#10 0x2ac56c24 in luaV_execute (L=L@entry=0x23008, nexeccalls=2031768, nexeccalls@entry=1) at lvm.c:847
#11 0x2ac4c73c in luaD_call (L=0x23008, func=0x23298, nResults=-1) at ldo.c:378
#12 0x2ac4bb30 in luaD_rawrunprotected (L=0x2ac4bb30 <luaD_rawrunprotected+76>, L@entry=0x23008, f=0x0, ud=0x23008, ud@entry=0x7ed94860) at ldo.c:116
#13 0x2ac4c898 in luaD_pcall (L=L@entry=0x23008, func=, u=u@entry=0x7ed94860, old_top=64, ef=48) at ldo.c:464
#14 0x2ac48368 in lua_pcall (L=0x23008, nargs=0, nresults=-1, errfunc=) at lapi.c:881
#15 0x000111f8 in _start ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

[Rooby69]

Anoher example:

Program received signal SIGSEGV, Segmentation fault.
0x2ab739a0 in luaL_addlstring (B=B@entry=0x7e9462e4, s=0x1994000 <error: Cannot access memory at address 0x1994000>, l=) at lauxlib.c:448
448 lauxlib.c: No such file or directory.
(gdb) bt
#0 0x2ab739a0 in luaL_addlstring (B=B@entry=0x7e9462e4, s=0x1994000 <error: Cannot access memory at address 0x1994000>, l=) at lauxlib.c:448
#1 0x2aea0730 in recvall (b=, buf=) at buffer.c:215
#2 buffer_meth_receive (L=0x2, buf=0x22b2a8) at buffer.c:125
#3 0x2ab672bc in luaD_precall (L=L@entry=0x23008, func=, func@entry=0x139790, nresults=nresults@entry=3) at ldo.c:320
#4 0x2ab71c24 in luaV_execute (L=L@entry=0x23008, nexeccalls=2254384, nexeccalls@entry=1) at lvm.c:847
#5 0x2ab6773c in luaD_call (L=0x23008, func=0x1396c0, nResults=-1) at ldo.c:378
#6 0x2ab66b30 in luaD_rawrunprotected (L=0x2ab66b30 <luaD_rawrunprotected+76>, L@entry=0x23008, f=0x23008, ud=0x23008, ud@entry=0x7e9485a8) at ldo.c:116
#7 0x2ab67898 in luaD_pcall (L=L@entry=0x23008, func=, u=u@entry=0x7e9485a8, old_top=224, ef=208) at ldo.c:464
#8 0x2ab63368 in lua_pcall (L=L@entry=0x23008, nargs=nargs@entry=0, nresults=nresults@entry=-1, errfunc=errfunc@entry=1) at lapi.c:881
#9 0x2ab74348 in luaB_xpcall (L=0x23008) at lbaselib.c:396
#10 0x2ab672bc in luaD_precall (L=L@entry=0x23008, func=, func@entry=0x1396a0, nresults=nresults@entry=-1) at ldo.c:320
#11 0x2ab71c24 in luaV_execute (L=L@entry=0x23008, nexeccalls=1063216, nexeccalls@entry=1) at lvm.c:847
#12 0x2ab6773c in luaD_call (L=0x23008, func=0x23298, nResults=-1) at ldo.c:378
#13 0x2ab66b30 in luaD_rawrunprotected (L=0x2ab66b30 <luaD_rawrunprotected+76>, L@entry=0x23008, f=0x0, ud=0x23008, ud@entry=0x7e948860) at ldo.c:116
#14 0x2ab67898 in luaD_pcall (L=L@entry=0x23008, func=, u=u@entry=0x7e948860, old_top=64, ef=48) at ldo.c:464
#15 0x2ab63368 in lua_pcall (L=0x23008, nargs=0, nresults=-1, errfunc=) at lapi.c:881
#16 0x000111f8 in _start ()
Backtrace stopped: previous frame identical to this frame (corrupt stack?)

[diizzyy]

Entware != Openwrt
@thess @hnyman
Close as invalid