Summary:

SELinux is preventing tcmodinfo from loading
/usr/lib/transcode/filter_yuvdenoise.so which requires text relocation.

Detailed Description:

The tcmodinfo application attempted to load
/usr/lib/transcode/filter_yuvdenoise.so which requires text relocation. This is
a potential security problem. Most libraries do not need this permission.
Libraries are sometimes coded incorrectly and request this permission. The
SELinux Memory Protection Tests
(http://people.redhat.com/drepper/selinux-mem.html) web page explains how to
remove this requirement. You can configure SELinux temporarily to allow
/usr/lib/transcode/filter_yuvdenoise.so to use relocation as a workaround, until
the library is fixed. Please file a bug report
(http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package.

Allowing Access:

If you trust /usr/lib/transcode/filter_yuvdenoise.so to run correctly, you can
change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/lib/transcode/filter_yuvdenoise.so'" You must also change the default file
context files on the system in order to preserve them even on a full relabel.
"semanage fcontext -a -t textrel_shlib_t
'/usr/lib/transcode/filter_yuvdenoise.so'"

Fix Command:

chcon -t textrel_shlib_t '/usr/lib/transcode/filter_yuvdenoise.so'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                system_u:object_r:lib_t:s0
Target Objects                /usr/lib/transcode/filter_yuvdenoise.so [ file ]
Source                        tcmodinfo
Source Path                   /usr/bin/tcmodinfo
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           transcode-1.1.1-5.fc11
Target RPM Packages           transcode-1.1.1-5.fc11
Policy RPM                    selinux-policy-3.6.12-85.fc11
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.30.8-64.fc11.i686.PAE #1 SMP Fri Sep 25
                              04:56:58 EDT 2009 i686 i686
Alert Count                   1
First Seen                    Thu 22 Oct 2009 18:07:18 CEST
Last Seen                     Thu 22 Oct 2009 18:07:18 CEST
Local ID                      4940a035-1ff8-41dd-a1c9-bf1233eb7371
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1256227638.464:442): avc:  denied  { execmod } for  pid=3305 comm="tcmodinfo" path="/usr/lib/transcode/filter_yuvdenoise.so" dev=dm-0 ino=301500 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1256227638.464:442): arch=40000003 syscall=125 success=no exit=-13 a0=ad2000 a1=36000 a2=5 a3=bfc9ddf0 items=0 ppid=3304 pid=3305 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="tcmodinfo" exe="/usr/bin/tcmodinfo" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.12-85.fc11,allow_execmod,tcmodinfo,unconfined_t,lib_t,file,execmod
audit2allow suggests:

#============= unconfined_t ==============
allow unconfined_t lib_t:file execmod;