Re: SELinux enforcing disallows opening floppy drive in Nautilus

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On Thu, 2006-04-13 at 10:25 -0500, J. K. Cliburn wrote:
> On 4/12/06, Stephen Smalley <sds@xxxxxxxxxxxxx> wrote:> On Wed,
> 2006-04-12 at 14:43 -0400, Stephen Smalley wrote:> > > And "some
> process" can be as simple as umount:> > >> > >    # ls -Z /etc/mtab> >
> >    -rw-r--r--  root     root
> system_u:object_r:etc_runtime_t  /etc/mtab> > >    # ls -i /etc/mtab>
> > >    31987 /etc/mtab> > >    # umount /opt> > >    # ls
> -Z /etc/mtab> > >    -rw-r--r--  root     root
> user_u:object_r:etc_t            /etc/mtab> > >    # ls -i /etc/mtab>
> > >    33358 /etc/mtab> >> > Hmm...that's interesting.  umount should
> run in the same domain as> > mount, and they should thus have a type
> transition on etc_t:file to> > etc_runtime_t.  ls -Z /bin/umount>>
> Looks like there is no transition defined into mount_t from>
> unconfined_t?  So umount and mount are just run in unconfined_t?  And>
> unconfined_t lacks the type transition?
> Sorry to be a pest, but what action do I need to take on my system
> toenable correct floppy drive mounting and unmounting?

Seems like a policy bug (omission of a transition from unconfined_t to
mount_t) to me.  Otherwise, /etc/mtab is going to lose its type every
time you run mount/umount from the shell.  Dan?

-- 
Stephen Smalley
National Security Agency

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