sqlplus returning "cannot restore segment prot after reloc: Permission denied"

Problem:

When running sqlplus on Linux, we received the following error:

sqlplus: error while loading shared libraries: /u01/app/oracle/product/11.2.0/dbhome_1/lib/libclntsh.so.11.1: cannot restore segment prot after reloc: Permission denied

We were running the Oracle Database Client 11g (11.2.0.1.0) on Red Hat Linux 5.5 x86. Our installation was valid and our environment was set correctly.

Solution:

This is directly related to SELinux.

1. As 'root', on the Gnome desktop, click on 'System -> Administration -> SELinux Management'

2. Set the following values as follows:

System Default Enforcing Mode: Permissive
Current Enforcing Mode: Permissive
System Default Policy Type: targeted

3. Rerun the command, and you should be okay.

Applicable Versions:

Oracle Database Client 11g (11.2.0.1.0)

References:

http://forums.oracle.com/forums/thread.jspa?threadID=598820