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I am using the 7.70 version on Nmap on centos server. I run the following scan on an IOT device(Electronic controller for a lighting system). nmap -sV --open --host-timeout 300 -n -T4 -oX - The nmap command never completes and its stuck there for a long time. A core dump gets generated and as per the core dump, it throws a seg fault. So, I face two issues here

1. Even though there is a host-timeout, the timeout is not honored
2. It throws a segmentation fault and generates a core dump maybe after an hour of trying to scan.

I also ran the command with "-d2 --version-trace --packet-trace" option but could not keep it running till the scan throws seg fault.

I ran backtrace on the core file and see only following error

(lldb) bt all

• thread #1, name = 'nmap', stop reason = signal SIGSEGV
  • frame #0: 0x000000000050c978

I am using this command in my application and want to gracefully exit the scan. Let me know if this is a known issue or is there a workaround.

Can anyone help with issue?

Any one else faced the issue?