Re: 2.6.1-rc1 affected?

[szonyi calin]

 --- Jonathan Higdon <jhigdon@xxxxxxxxxxxxxx> a écrit : > 
> 
> On Tue, 6 Jan 2004, [iso-8859-1] szonyi calin wrote:
> 
> > >
> > > On my box that program is a very effective 'instant
> reboot'.
> > >
> >
> > on mine just a segfault :-)
> > sony@grinch -04:47:32- 0 jobs, ver 2.05b.0 3
> >  /~/schule $ gcc -o mremap_poc mremap_poc.c
> > sony@grinch -04:47:35- 0 jobs, ver 2.05b.0 3
> >  /~/schule $ ./mremap_poc
> > Segmentation fault
> >

correction
if it is compileg withj -g and statically linked and run from
a gdb session it hard locks the machine. Only a hard reset helps
if it's run from a shell -> segfaults :-)
so at least on my system an atacker needs gdb to crash the 
machine :-)
 

> > > The instant I ran it from a xterm my screen went black,
> the
> > > music I was
> > > listening to from a CD stopped and the machine rebooted.
> > > The running kernel was 2.6.1-rc1-mm1
> > >
> >
> > maybe you were running the program as root ?
> 
> I tried it on 2.6.0 as a regular user and got an instant
> reboot.
> stracing it showed the faults and the system was unusable
> after that :)
> 
> ~jon

=====
--
A mouse is a device used to point at 
the xterm you want to type in.
Kim Alm on a.s.r.

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