Bug 574581

Summary:

SELinux is preventing /opt/altera9.1sp1/quartus/linux/quartus from loading
/opt/altera9.1sp1/quartus/linux/libccl_err.so which requires text relocation.

Detailed Description:

[SELinux is in permissive mode. This access was not denied.]

The quartus application attempted to load
/opt/altera9.1sp1/quartus/linux/libccl_err.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
/opt/altera9.1sp1/quartus/linux/libccl_err.so to use relocation as a workaround,
until the library is fixed. Please file a bug report.

Allowing Access:

If you trust /opt/altera9.1sp1/quartus/linux/libccl_err.so to run correctly, you
can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/opt/altera9.1sp1/quartus/linux/libccl_err.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
'/opt/altera9.1sp1/quartus/linux/libccl_err.so'"

Fix Command:

chcon -t textrel_shlib_t '/opt/altera9.1sp1/quartus/linux/libccl_err.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                /opt/altera9.1sp1/quartus/linux/libccl_err.so [
                              file ]
Source                        quartus
Source Path                   /opt/altera9.1sp1/quartus/linux/quartus
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-99.fc12
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed) 2.6.32.9-70.fc12.i686.PAE #1 SMP Wed
                              Mar 3 04:57:21 UTC 2010 i686 i686
Alert Count                   29
First Seen                    Mon 01 Mar 2010 06:38:01 AM GMT
Last Seen                     Wed 17 Mar 2010 09:09:08 PM GMT
Local ID                      7e76402d-d8d6-4048-8434-47350d477c17
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1268860148.497:39): avc:  denied  { execmod } for  pid=2762 comm="quartus" path="/opt/altera9.1sp1/quartus/linux/libccl_err.so" dev=dm-0 ino=1967818 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(1268860148.497:39): arch=40000003 syscall=125 success=yes exit=0 a0=a02000 a1=2d000 a2=5 a3=bfda1790 items=0 ppid=2760 pid=2762 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=pts0 ses=1 comm="quartus" exe="/opt/altera9.1sp1/quartus/linux/quartus" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  allow_execmod,quartus,unconfined_t,lib_t,file,execmod
audit2allow suggests:

#============= unconfined_t ==============
#!!!! This avc can be allowed using the boolean 'allow_execmod'

allow unconfined_t lib_t:file execmod;