On Thu, 2007-07-05 at 11:24 +0200, pageexec@... wrote:
> On 5 Jul 2007 at 10:19, Natanael Copa wrote:
> 
> > I'm tryning to run a gentoo hardened kernel as a qemu guest but PAX is
> > not happy. It works fine in vmware.
> 
> 'fine' is a relative word here, see below ;-).
> 
> > Any ideas how to find out what this really is?
> > 
> > I tried kvm-28 (with kvm-intel) and qemu-0.9 (non kvm).
> [...] 
> > PAX: swapper:1, uid/euid: 0/0, attempted to modify kernel code at virtual address c0551c08
> >  printing eip:
> > 0000e9d7

[...]

> and after a split second of reflection one
> can figure out that there's indeed a bug in there in that KERNEXEC
> can shoot itself in the foot so to speak.

[...]

> for an extra confirmation, can you post the output of
> 
>    egrep 'swapper_p|MODULES_| _data' System.map
> 
> ?

localhost kout # egrep 'swapper_p|MODULES_| _data' System.map
c0551000 R swapper_pg_dir
c0594000 D MODULES_VADDR
c0c00000 D MODULES_END
c0c00000 D _data

> 
> in any case, thanks for the report, i'll fix it for 2.6.22.
> 

Thanks!

-- 
gentoo-hardened@g.o mailing list