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I am using Fedora 13 and my VLC media player is showing this problem for the past one week. How do i rectify this error.


Summary:

SELinux is preventing /usr/bin/vlc from loading /usr/lib/vlc/plugins/codec/libdmo_plugin.so which requires text relocation.

Detailed Description:

The vlc application attempted to load /usr/lib/vlc/plugins/codec/libdmo_plugin.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/vlc/plugins/codec/libdmo_plugin.so to use relocation as a workaround, until the library is fixed. Please file a bug report.

Allowing Access:

If you trust /usr/lib/vlc/plugins/codec/libdmo_plugin.so to run correctly, you can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t '/usr/lib/vlc/plugins/codec/libdmo_plugin.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/vlc/plugins/codec/libdmo_plugin.so'"

Fix Command:

chcon -t textrel_shlib_t '/usr/lib/vlc/plugins/codec/libdmo_plugin.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/vlc/plugins/codec/libdmo_plugin.so [ file ] Source vlc Source Path /usr/bin/vlc Port Host (removed) Source RPM Packages vlc-core-1.1.3-1.fc13 Target RPM Packages vlc-core-1.1.3-1.fc13 Policy RPM selinux-policy-3.7.19-51.fc13 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name allow_execmod Host Name (removed) Platform Linux (removed) 2.6.34.6-47.fc13.i686.PAE #1 SMP Fri Aug 27 09:29:49 UTC 2010 i686 i686 Alert Count 3 First Seen Sat 04 Sep 2010 08:26:05 PM IST Last Seen Sat 04 Sep 2010 08:35:40 PM IST Local ID 48840a90-fea4-403b-95a3-6cadc80b1a0a Line Numbers

Raw Audit Messages

node=(removed) type=AVC msg=audit(1283612740.262:117): avc: denied { execmod } for pid=9594 comm="vlc" path="/usr/lib/vlc/plugins/codec/libdmo_plugin.so" dev=sda2 ino=789070 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(1283612740.262:117): arch=40000003 syscall=125 success=no exit=-13 a0=4439000 a1=1e000 a2=5 a3=bfbe2480 items=0 ppid=1 pid=9594 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="vlc" exe="/usr/bin/vlc" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)


Update Well, i tried that now in terminal and nothing seems to happen.

[chandru.math@chandru ~]$ chcon -t textrel_shlib_t '/usr/lib/vlc/plugins/codec/libdmo_plugin.so

It stops like this!

2
  • Hello @Chandru1 you will need to run it with sudo, sudo chcon -t textrel_shlib_t '/usr/lib/vlc/plugins/codec/libdmo_plugin.so' also make sure you have the single ' at the end of the line. Commented Sep 4, 2010 at 16:05
  • if I we're u, I would disable and remove SELinux, ofcourse it is not the answer to your problem, but it will solve your problem, just for your consideration.
    – uray
    Commented Sep 5, 2010 at 2:13

1 Answer 1

2

Did you run the fix command in the summary you posted?

sudo chcon -t textrel_shlib_t '/usr/lib/vlc/plugins/codec/libdmo_plugin.so'

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