Bug 543802

Summary:

SELinux is preventing /usr/bin/totem from loading /usr/lib/win32/drv3.so.6.0
which requires text relocation.

Detailed Description:

The totem application attempted to load /usr/lib/win32/drv3.so.6.0 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/win32/drv3.so.6.0 to use relocation as a workaround, until the library
is fixed. Please file a bug report.

Allowing Access:

If you trust /usr/lib/win32/drv3.so.6.0 to run correctly, you can change the
file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/usr/lib/win32/drv3.so.6.0'" 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/win32/drv3.so.6.0'"

Fix Command:

chcon -t textrel_shlib_t '/usr/lib/win32/drv3.so.6.0'

Additional Information:

Source Context                unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1
                              023
Target Context                unconfined_u:object_r:lib_t:s0
Target Objects                /usr/lib/win32/drv3.so.6.0 [ file ]
Source                        totem-video-thu
Source Path                   /usr/bin/totem-video-thumbnailer
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           totem-2.28.3-1.fc12
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-49.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed)
                              2.6.31.6-145.fc12.i686.PAE #1 SMP Sat Nov 21
                              16:12:37 EST 2009 i686 i686
Alert Count                   3
First Seen                    Wed 25 Nov 2009 04:30:48 AM EET
Last Seen                     Wed 25 Nov 2009 05:42:38 AM EET
Local ID                      0f08e17b-403d-477b-9cce-767fc1adccdf
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1259120558.938:65): avc:  denied  { execmod } for  pid=25595 comm="totem" path="/usr/lib/win32/drv3.so.6.0" dev=sda7 ino=326146 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:lib_t:s0 tclass=file

node=(removed) type=SYSCALL msg=audit(1259120558.938:65): arch=40000003 syscall=125 success=no exit=-13 a0=1a26000 a1=40000 a2=5 a3=b6044420 items=0 ppid=1 pid=25595 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="totem" exe="/usr/bin/totem" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-49.fc12,allow_execmod,totem-video-thu,unconfined_t,lib_t,file,execmod
audit2allow suggests:

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