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Re: gstreamer and selinux issue



Louis Garcia II wrote:
On Fri, 2006-08-11 at 15:59 -0400, Louis Garcia II wrote:
On Fri, 2006-08-11 at 08:01 -0100, Paul Howarth wrote:
On Thu, 2006-08-10 at 16:31 -0400, Louis Garcia II wrote:
On Thu, 2006-08-10 at 10:15 -0400, Daniel J Walsh wrote:
On Wed, 2006-08-09 at 20:31 -0400, Louis Garcia II wrote:
On Wed, 2006-08-09 at 18:12 -0400, Louis Garcia II wrote:
I was able to setup the pitfdll plugin for gstreamer and use the win32
codecs under fc5 with selinux enabled. The pitfdll plugin needed to be
marked textrel_shlib_t and the codecs under /usr/lib/win32 marked lib_t.
This worked for FC5 under selinux and FC6 with selinux disabled. But
selinux under FC6 seems to have changed. Is their another lable I
should use, how can I debug this?

-Thanks
This is what I get:

Aug  9 19:12:34 soncomputer kernel: audit(1155165152.723:10): avc:
denied  { execstack } for  pid=9530 comm="totem"
scontext=user_u:system_r:unconfined_t:s0
tcontext=user_u:system_r:unconfined_t:s0 tclass=process

-Louis
you can turn on allow_execstack or change the context of totem to
unconfined_execmen_exec_t
chcon -t unconfined_execmem_exec_t /usr/bin/totem
if I turn on allow_execstack would that be for everything
Yes.

 or just for totem?
What would be the most secure of these two options?
Just changing the context type of totem.

Paul.
Ok, I chaged the context type of totem and now it's:
-rwxr-xr-x  root root system_u:object_r:unconfined_execmem_exec_t /usr/bin/totem

This seems to fix my problem. However I get a slightly different message now:
Aug 11 15:09:41 soncomputer kernel: audit(1155323379.605:36): avc:  denied  { execheap } for  pid=3094 comm="totem" scontext=user_u:system_r:unconfined_execmem_t:s0 tcontext=user_u:system_r:unconfined_execmem_t:s0 tclass=process

what does it mean?

-Louis

I am also having problems with totem-mozplugin, totem's plugin for
firefox.
Aug 11 16:18:15 soncomputer kernel: audit(1155327494.846:63): avc:
denied  { execstack } for  pid=11603 comm="totem-mozilla-v"
scontext=user_u:system_r:unconfined_t:s0
tcontext=user_u:system_r:unconfined_t:s0 tclass=process

Aug 11 16:18:15 soncomputer kernel: audit(1155327494.850:64): avc:
denied  { execstack } for  pid=11603 comm="totem-mozilla-v"
scontext=user_u:system_r:unconfined_t:s0
tcontext=user_u:system_r:unconfined_t:s0 tclass=process

Aug 11 16:18:15 soncomputer kernel: audit(1155327494.850:65): avc:
denied  { execstack } for  pid=11603 comm="totem-mozilla-v"
scontext=user_u:system_r:unconfined_t:s0
tcontext=user_u:system_r:unconfined_t:s0 tclass=process

You have two choices with this turn on allow_execstack boolean or label
firefox unconfined_execmem_exec_t.

You might want to complain to the people who ship totem or the other plugins to fix their code.

http://people.redhat.com/~drepper/selinux-mem.html
<http://people.redhat.com/%7Edrepper/selinux-mem.html>
Explains the memory checks.
-Louis



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