SIGSEGV with some contrib modules

[Vanilla]

Hello,
I have troubles with Hybrid 7.1 beta 1 when running some contrib modules
(m_forcenick.c, m_services.c).
Whenever I use commands from them, ircd terminates with SIGSEGV. Here's GDB
backtrace:

#0  0x00000000 in ?? ()
#1  0x0806544c in handle_command (mptr=0x7691a0, client_p=0x565e9c,
from=0x565e9c, i=2, hpara=0x81650e0)
    at parse.c:388
#2  0x080652f6 in parse (client_p=0x565e9c, pbuffer=0x8161040 "NS",
bufend=0x8161047 "") at parse.c:329
#3  0x08064fa7 in client_dopacket (client_p=0x565e9c, buffer=0x8161040 "NS",
length=7) at packet.c:539
#4  0x080648b4 in parse_client_queued (client_p=0x565e9c) at packet.c:214
#5  0x08064dd2 in read_packet (fd=13, data=0x565e9c) at packet.c:460
#6  0x0807992c in comm_select (delay=500) at s_bsd_sigio.c:258
#7  0x0805f81c in io_loop () at ircd.c:302
#8  0x08060124 in main (argc=0, argv=0xbffff8fc) at ircd.c:690

Here are links for:
m_forcenick.c - http://futune.netflower.ru/m_forcenick.c
m_services.c - http://futune.netflower.ru/m_services.c

They worked fine until beta1 release.