I've installed fwknopf on Kali Linux, based on debian, and I can configure and start the daemon perfectly, no errors are given. When I try to send the SPA packet (I'm usign webknock.org), there's a segmentation fault on libc-2.13.

The syslog message is as follows:

"Apr 24 00:44:46 kali fwknopd[5230]: Starting fwknopd
Apr 24 00:44:46 kali fwknopd[5230]: 'filter' table 'FWKNOP_INPUT' chain exists
Apr 24 00:44:46 kali fwknopd[5230]: Added jump rule from chain: INPUT to chain: FWKNOP_INPUT
Apr 24 00:44:46 kali fwknopd[5230]: Sniffing interface: wlan0
Apr 24 00:44:46 kali fwknopd[5230]: PCAP filter is: 'udp port 8022'
Apr 24 00:44:46 kali fwknopd[5230]: Starting fwknopd main event loop.
Apr 24 00:47:17 kali fwknopd[5230]: (stanza #1) SPA Packet from IP: 195.251.209.155 received with ac
cess source match
Apr 24 00:47:17 kali kernel: [  858.652511] fwknopd[5230]: segfault at 0 ip 00007f19f472b86f sp 00007fff4e080598 error 4 in libc-2.13.so[7f19f4612000+180000]"

Which information is needed to troubleshoot this error? I have reinstalled libc several times, libnet-pcap also, but keep getting the same error. My OS is: "Linux kali 3.7-trunk-amd64 #1 SMP Debian 3.7.2-0+kali6 x86_64 GNU/Linux"

I've tried compiling it from source, but errors are the same.
My package versions are:
libc6/kali uptodate 2.13-38
libnet-pcap-perl/kali uptodate 0.16-3+b1
fwknopd server 2.0.3

thank you!