Re: PaX killing conntrackd (strange "execution attempt")

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* Wolfram Schlich <lists@xxxxxxxxxxxxxxxxxxx> [2008-11-13 18:41]:
> * Wolfram Schlich <lists@xxxxxxxxxxxxxxxxxxx> [2008-11-13 14:27]:
> > Here's the answer from the PaX team, for those who might be interested:
> > * pageexec@xxxxxxxxxxx <pageexec@xxxxxxxxxxx> [2008-11-13 14:18]:
> > > [...]
> > > this is a null function pointer dereference problem on the surface and you'll have to
> > > debug it to get more info. i wonder why nothing shows up in the stack dump however,
> > > maybe there's more corruption here behind the scenes. once you get the coredumps (and
> > > i hope you have debug info saved away ;) we can get a backtrace and other things. also
> > > disable randomization in /proc/sys/... so that results are comparable. best would be
> > > to find a way to directly trigger this crash, then you could have a live gdb session
> > > instead of coredump analysis.
> > 
> > I'll take care of these suggestions now and let you know
> > about any news.
> 
> I've now recompiled conntrack-tools using these CFLAGS:
> 
> 	-march=nocona -O0 -ggdb -DDEBUG
> 
> Also, the binaries were not stripped anymore:
> 
> 	/usr/sbin/conntrackd: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), for GNU/Linux 2.6.9, not stripped
> 
> (I forgot to mention I'm on a 64bit kernel + userland).
> 
> I'm now stressing the firewalls with packets.

Damnit, it doesn't break! :)
Been stressing the firewall with gigabytes of packets...
Last time it crashed, it hadn't receive a hundred megabytes
of packets at all... *sigh*
-- 
Regards,
Wolfram Schlich <wschlich@xxxxxxxxxx>
Gentoo Linux * http://dev.gentoo.org/~wschlich/
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