Re: gnome login broken.... "null" avcs...

[Eamon Walsh <ewalsh tycho nsa gov>]

Tom London wrote:
> On Thu, Feb 28, 2008 at 10:06 AM, Daniel J Walsh <dwalsh redhat com> wrote:
>   
> > -----BEGIN PGP SIGNED MESSAGE-----
> >  Hash: SHA1
> >
> >
> >
> >  Tom London wrote:
> >  > On Thu, Feb 28, 2008 at 7:41 AM, Tom London <selinux gmail com> wrote:
> >  >> After applying today's selinux-policy* packages, gnome/gdm login
> >  >>  fails: gdmgreeter runs, but X quickly dies after enter password and
> >  >>  you're back to the greeter.
> >  >>
> >  >>  Booting up in permissive lets me log in.
> >  >>
> >  >>  Here are the borkages:
> >  >>
> >  >>
> >  >>  #============= mono_t ==============
> >  >>  allow mono_t xdm_xserver_t:x_device read;
> >  >>
> >  >>  #============= unconfined_execmem_t ==============
> >  >>  allow unconfined_execmem_t xdm_xserver_t:x_device read;
> >  >>
> >  >>  #============= unconfined_t ==============
> >  >>  allow unconfined_t mono_t:x_resource write;
> >  >>  allow unconfined_t unconfined_execmem_t:x_resource { write read };
> >  >>  allow unconfined_t unlabeled_t:x_drawable { destroy getattr };
> >  >>  [root localhost ~]#
> >  >>

The "null" avc's are fixed in the upstream X server.  This is a bad 
security hook call in the GLX code and affects GLX programs such as compiz.

The unlabeled AVC is the result of a mislabeled program?



--
Eamon Walsh <ewalsh tycho nsa gov>
National Security Agency