(gdb) bt full
#0 0x00007ffff63160d2 in vsnprintf () from /lib64/libc.so.6
No symbol table info available.
#1 0x00000000006363bf in strlib_safesnprintf (buf=0x7ffff1fa86c0 "", sz=24,
fmt=0x17 <Address 0x17 out of bounds>

at strlib.c:392
ap = {{gp_offset = 24, fp_offset = 48,
overflow_arg_area = 0x7fffffffd650,
reg_save_area = 0x7fffffffd580}}
ret = -161079168
#2 0x00007ffff1fa59c3 in showing_buff (sd=0x2e19080) at spb.c:101
ssd = 0x7ffff6662080 <_IO_strn_jumps>
#3 0x00007ffff1fa5bde in clif_party_info_overload (p=0x7fffffffd400,
sd=0x7ffff1fa86c0) at spb.c:148
ssd = 0x7ffff6662080 <_IO_strn_jumps>
i = 12
buf = "D\n\200\000HGSDUHA", '\000' <repeats 17 times>, "\201\204\036\000Admin", '\000' <repeats 19 times>, "prontera.gat\000\000\000\000\001\000\260\017`\000\200\204\036\000Lovely", '\000' <repeats 18 times>, "prontera.gat\000\000\000\000\000\001\255\017c", '\000' <repeats 500 times>
#4 0x00007ffff1fa4f85 in atcommand_showbuff (fd=-11264, sd=0x2e17540,
command=0x17 <Address 0x17 out of bounds>, message=0x7ffff1fa86c0 "",
info=0x0) at spb.c:286
ssd = 0xde6880 <clif>
p = 0x11c4814
---Type <return> to continue, or q <return> to quit---
#5 0x0000000000431de8 in atcommand_exec (fd=11, sd=0x2e17540,
message=0x7fffffffddf8 "@showbuff", player_invoked=192)
at atcommand.c:10662
params = '\000' <repeats 99 times>
command = "@showbuff", '\000' <repeats 90 times>
output = "\001\000\000\000\000\000\000\000\210\333\377\377\377\177\000\000\254\u0710\004", '\000' <repeats 12 times>, "p\333\377\377\377\177\000\000v$N\000\000\000\000\000\360\062M\000\000\000\000\000\254\u0710\004\000\000\000\000\n\000\000\000\000\000\000\000\360\324F\000\000\000\000\000\070\001\000\000\000\000\000\000 \000\000\000\060\000\000\000`\334\377\377\377\177\000\000\240\333\377\377\377\177\000\000\221\335\377\377\377\177\000\000\240j\235\000\000\000\000\000\001\000\000\000\000\000\000\000V \230\354\000\000\000\000P\334\377\377\377\177\000\000!\266M\000\000\000\000\000\340\333\377\377\377\177\000\000 \000\000\000\060\000\000\000`\334\377\377\377\177\000\000\240\333\377\377\377\177\000\000\244\000<\000\225\000\000\000\060\000\000\000"...
logCommand = true
atcmd_msg = "@showbuff\000\227\354\000\000\000\000 \334\377\377\377\177\000\000\375';\366\377\177\000\000\000\000\000\000\000\000\000\000f\213c\000\000\000\000\000p\221<\000\000\000\000\000}\312T+\000\000\000\000P\334\377\377\377\177\000\000\070\355a\000\000\000\000\000\254\u0710\004", '\000' <repeats 12 times>, "\240j\235\000\000\000\000\000\001\000\000\000\000\000\000\000\300\334\377\377\377\177\000\000\225\031O\000\000\000\000\000h\335\377\377\377\177\000\000p\334\377\377\377\177\000\000\220\336\377\377\001\000\000\000\n\000\000\000\203\000\000\00---Type <return> to continue, or q <return> to quit---
0\340\334\377\377\377\177", '\000' <repeats 18 times>, "\254\u0710\004\000\000\000\000V \230\354\000\000\000\000\210\335"...
#6 0x0000000000532c72 in pc_process_chat_message (sd=0x2e17540,
message=0x7ffff1fa86c0 "") at pc.c:12299
No locals.
#7 0x000000000046c11f in clif_process_chat_message (sd=0x2e17540,
packet=0x7ffff4b547f4, out_buf=0x0, out_buflen=-235239744) at clif.c:10313
srcname = 0x7ffff4b547f8 "Admin : @showbuff"
message = 0x7fffffffddf8 "@showbuff"
textlen = -161079168
__func__ = "clif_process_chat_message"
#8 0x0000000000467b33 in clif_parse_GlobalMessage (fd=11, sd=0x2e17540)
at clif.c:11308
full_message = "Admin : @showbuff\000\000\000\000\000\000\000\\:\222\004\000\000\000\000V \230\354\000\000\000\000\240j\235\000\000\000\000\000P\336\377\377\377\177\000\000\375';\366\377\177\000\000`\336\377\377\377\177\000\000f\213c\000\000\000\000\000p\221<\000\000\000\000\000\342\254V(\000\000\000\000\200\336\377\377", '\000' <repeats 20 times>, "T\341y\001\000\000\000\000\030\337\377\377\377\177\000\000\000\000\000\000\000\000\000\000\u040dJ\000\000\000\000\000(Zb\000\000\000\000\000\260\336\377\377\377\177\000\000T\341y\001\000\000\000\000\030\337\377\377\377\177", '\000' <repeats 11 times>, "\337\377\377\377\177\000\000\270"...
message = 0xb <Address 0xb out of bounds>
---Type <return> to continue, or q <return> to quit---
__func__ = "clif_parse_GlobalMessage"
#9 0x000000000046447e in clif_parse (fd=11) at clif.c:23848
parse_cmd_func = 0x7ffff6662080 <_IO_strn_jumps>
packet_len = 23
sd = 0x2e17540
#10 0x000000000063fffe in do_sockets (next=88) at socket.c:1073
rfd = {fds_bits = {2048, 0 <repeats 15 times>}}
timeout = {tv_sec = 0, tv_usec = 83403}
ret = 0
#11 0x0000000000407fb2 in main (argc=1, argv=0x7fffffffe168) at core.c:538
next = -161079168
retval = 6520960