Re: firefox, gaim, /lib/ld-2.3.3.so ?

Still get /lib/ld-2.3.3.so avc with latest rawhide gtk2 download.

I'm not sure its the right place, but I'll bugzilla this agains glibc.

tom

On Fri, 24 Sep 2004 07:26:14 -0700, Tom London <selinux@xxxxxxxxx> wrote:
> When in strict/enforcing, mozilla fails to start because or the
> /lib/ld-2.3.3.so 'violation'.
> 
> I get the .fonts.cache avc when running in permissive mode.  I haven't
> modified the policy to allow the /lib/ld-2.3.3.so access to see the
> effect of this failing.
> 
> Regarding the /lib/ld-2.3.3.so avc, I'm noticing this when I try to
> start firefox, thunderbird and gaim, but nothing else..  Could it also
> be a gtk2 problem?
> 
> tom
> 
> 
> 
> On Fri, 24 Sep 2004 00:18:05 -0400, Colin Walters <walters@xxxxxxxxxx> wrote:
> > On Thu, 2004-09-23 at 20:33 -0700, Tom London wrote:
> > > After being on the road for a bit, I did a 'yum update' to grab the new 
> > > stuff.
> > >
> > > After doing so (>300 packages), running strict/enforcing,
> > > firefox and gaim fail to start:
> > >
> > > Sep 23 20:10:29 fedora kernel: audit(1095995429.976:0): avc:  denied
> > > { write } for  pid=4755 path=/lib/ld-2.3.3.so dev=hda2 ino=3178536
> > > scontext=user_u:user_r:user_mozilla_t
> > > tcontext=system_u:object_r:ld_so_t tclass=file
> >
> > That is bizarre.  My guess is some recent glibc change.
> >
> > > Sep 23 20:10:31 fedora kernel: audit(1095995431.164:0): avc:  denied
> > > { unlink } for  pid=4755 exe=/usr/lib/firefox-0.10.0/firefox-bin
> > > name=.fonts.cache-1 dev=hda2 ino=2752979
> > > scontext=user_u:user_r:user_mozilla_t
> > > tcontext=user_u:object_r:user_home_t tclass=file
> >
> > The fontconfig cache as it's currently implemented is going to be a
> > perennial problem for SELinux.  Any application that uses fontconfig
> > will want to read and write to the cache file.
> >
> > Currently the fontconfig library has a bit of code:
> > FcBool
> > FcGlobalCacheSave (FcGlobalCache    *cache,
> >                    const FcChar8    *cache_file)
> > {
> > /* ... */
> > #if defined (HAVE_GETUID) && defined (HAVE_GETEUID)
> >     /* Set-UID programs can't safely update the cache */
> >     if (getuid () != geteuid ())
> >         return FcFalse;
> > #endif
> >
> > But there's really no equivalent to that check for SELinux.
> >
> > A short term solution might be to give .fonts.cache-1 its own type by
> > patching fontconfig to put it in a ~/.fontconfig directory which has a
> > type user_font_cache_t that we can statically assign, and
> > when .fonts.cache-1 is created in that directory it should inherit the
> > type, so it won't just be user_home_t.  Then for every user domain
> > except user_t we just dontaudit writes to it.
> >
> > Was mozilla actually not starting because of this?  That would probably
> > be a bug in the fontconfig libraries.
> >
> > A longer term solution would be to make the fontconfig cache a daemon
> > that controls access to fonts more precisely.
> >
> >
> > 
> > --
> > fedora-selinux-list mailing list
> > fedora-selinux-list@xxxxxxxxxx
> > http://www.redhat.com/mailman/listinfo/fedora-selinux-list
> >
> >
> >
> >
> 
> --
> Tom London
> 



-- 
Tom London