Re: 4.0 Segfault

[Fyodor <fyodor () insecure org>]

On Fri, Feb 03, 2006 at 11:28:22AM -0700, Leif Tishendorf wrote:
> With the latest 4.0 release I am getting a segfault when I am
> scanning more then one host at a time.  Did a strace and got:
>
> --- SIGSEGV (Segmentation fault) @ 0 (0) ---
> write(2, "caught SIGSEGV signal, cleaning "..., 35caught SIGSEGV signal, cleaning up) = 35
> close(1)                                = 0
> munmap(0xb7f67000, 4096)                = 0
> rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
> write(3, "The SYN Stealth Scan took 625.25"..., 2577) = 2577
> tgkill(2840, 2840, SIGABRT)             = 0
> --- SIGABRT (Aborted) @ 0 (0) ---
> +++ killed by SIGABRT +++
>
> I'm running the following scan:
>
> /usr/local/nmap-4.00/nmap -vvvv --host_timeout 1500000 -oN - -oX <xml out> -sS -p 1-18,20-9099,9101-65535 -O <host>

Could you try it with gdb instead?  Go to (or remake) the source
directory, 'make' Nmap, then do:

gdb ./nmap
r -vvvv --host_timeout 1500000 -oN - -oX <xml out> -sS -p 1-18,20-9099,9101-65535 -O <host>
[ wait for crash, then press 'bt<enter>' ]

Then would you send us a log of the output?  If it is very long,
sending just the 'bt' results may be enough.

Thanks,
Fyodor


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