Bug 537702

Summary:

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

Detailed Description:

The quartus_map application attempted to load
/opt/altera9.1/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/altera9.1/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/altera9.1/quartus/linux/libccl_err.so to run correctly, you
can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t
'/opt/altera9.1/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/altera9.1/quartus/linux/libccl_err.so'"

Fix Command:

chcon -t textrel_shlib_t '/opt/altera9.1/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/altera9.1/quartus/linux/libccl_err.so [ file
                              ]
Source                        quartus_map
Source Path                   /opt/altera9.1/quartus/linux/quartus_map
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.6.32-24.fc12
Selinux Enabled               True
Policy Type                   targeted
MLS Enabled                   True
Enforcing Mode                Enforcing
Plugin Name                   allow_execmod
Host Name                     (removed)
Platform                      Linux (removed) 2.6.31.1-56.fc12.x86_64 #1 SMP Tue Sep
                              29 16:16:22 EDT 2009 x86_64 x86_64
Alert Count                   1
First Seen                    Sun 15 Nov 2009 02:10:17 PM MST
Last Seen                     Sun 15 Nov 2009 02:10:17 PM MST
Local ID                      c6baf14a-f3e4-42ee-bf5d-f776a49114f1
Line Numbers                  

Raw Audit Messages            

node=(removed) type=AVC msg=audit(1258319417.292:20925): avc:  denied  { execmod } for  pid=27021 comm="quartus_map" path="/opt/altera9.1/quartus/linux/libccl_err.so" dev=dm-0 ino=83566 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(1258319417.292:20925): arch=40000003 syscall=125 success=no exit=-13 a0=360d000 a1=2d000 a2=5 a3=fffb0580 items=0 ppid=27020 pid=27021 auid=501 uid=501 gid=501 euid=501 suid=501 fsuid=501 egid=501 sgid=501 fsgid=501 tty=pts0 ses=4 comm="quartus_map" exe="/opt/altera9.1/quartus/linux/quartus_map" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null)



Hash String generated from  selinux-policy-3.6.32-24.fc12,allow_execmod,quartus_map,unconfined_t,lib_t,file,execmod
audit2allow suggests:

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