Thank you for your interest in Kali but this bug report is not actionable. Please read https://kali.training/chapter-6/filing-a-good-bug-report/ first. We are a small team and we expect you to provide a much more detailed bug report.

In particular:

• can you share the github issue you found?
• can you describe how to reproduce the issue?
• what version of Kali and of hydra are you using?

Without at least those details, this issue will be closed without further action.

here is the github :
https://github.com/vanhauser-thc/thc-hydra/issues/247

try to reproduce :
hydra -l admin -P passlist.txt 192.168.0.1 http-get

kali 2017.2
hydra 8.6

I was able to replicate this issue on 32-bit versions of Kali only. The latest git checkout of the project works correctly.

64bit:
root@kali:~# uname -a
Linux kali 4.13.0-kali1-amd64 0000001 SMP Debian 4.13.4-1kali1 (2017-10-03) x86_64 GNU/Linux

root@kali:~# hydra -l root -P /root/words.txt -t 2 ssh://127.0.0.1
Hydra v8.6 (c) 2017 by van Hauser/THC - Please do not use in military or secret service organizations, or for illegal purposes.

Hydra (http://www.thc.org/thc-hydra) starting at 2017-10-09 10:06:42
[DATA] max 2 tasks per 1 server, overall 2 tasks, 21 login tries (l:1/p:21), 0000028:0000011 tries per task
[DATA] attacking ssh://127.0.0.1:22/
[22][ssh] host: 127.0.0.1 login: root password: toor
1 of 1 target successfully completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2017-10-09 10:07:12

################################################################################

32bit:
root@kali:~# uname -a
Linux kali 4.13.0-kali1-686-pae 0000001 SMP Debian 4.13.4-1kali1 (2017-10-03) i686 GNU/Linux

root@kali:~# hydra -l root -P /root/words.txt -t 2 ssh://127.0.0.1
Hydra v8.6 (c) 2017 by van Hauser/THC - Please do not use in military or secret service organizations, or for illegal purposes.

Hydra (http://www.thc.org/thc-hydra) starting at 2017-10-09 10:43:52
Segmentation fault

syslog entry:
Oct 9 10:52:09 kali kernel: [ 700.952896] hydra[13680]: segfault at 15 ip b7171d6f sp bfddcf3c error 4 in libc-2.24.so[b70fc000+1b1000]

################################################################################

32bit git checkout:
root@kali:~/thc-hydra# ./hydra -l root -P /root/words.txt -t 2 ssh://127.0.0.1
Hydra v8.7-dev (c) 2017 by van Hauser/THC - Please do not use in military or secret service organizations, or for illegal purposes.

Hydra (http://www.thc.org/thc-hydra) starting at 2017-10-09 10:50:40
[DATA] max 2 tasks per 1 server, overall 2 tasks, 21 login tries (l:1/p:0), 0000012:0000021 tries per task
[DATA] attacking ssh://127.0.0.1:22/
[22][ssh] host: 127.0.0.1 login: root password: toor
1 of 1 target successfully completed, 1 valid password found
Hydra (http://www.thc.org/thc-hydra) finished at 2017-10-09 10:51:10

i try in the version PWK 2017.2 and have issue, kindly advise workaround for that. how to update so no seg fault

fixed in new version 8.6-1kali1