Summary: SELinux is preventing /opt/MATHWORKS_R2008A/bin/glnx86/MATLAB from loading /opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001 which requires text relocation. Detailed Description: The MATLAB application attempted to load /opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001 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/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001 to use relocation as a workaround, until the library is fixed. Please file a bug report. Allowing Access: If you trust /opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001 to run correctly, you can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t '/opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001'" 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/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001'" Fix Command: chcon -t textrel_shlib_t '/opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001' 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/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL. so.1.5.060001 [ file ] Source MATLAB Source Path /opt/MATHWORKS_R2008A/bin/glnx86/MATLAB Port <Unknown> Host (removed) Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.6.32-110.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name allow_execmod Host Name (removed) Platform Linux Newton.survey.ntua.gr 2.6.32.11-99.fc12.i686 #1 SMP Mon Apr 5 16:32:08 EDT 2010 i686 i686 Alert Count 6 First Seen Fri 30 Apr 2010 11:22:00 AM EEST Last Seen Fri 30 Apr 2010 06:42:48 PM EEST Local ID 8f10457e-562c-4926-88d4-acb18e997f5a Line Numbers Raw Audit Messages node=Newton.survey.ntua.gr type=AVC msg=audit(1272642168.769:24): avc: denied { execmod } for pid=4216 comm="MATLAB" path="/opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001" dev=sda1 ino=82379 scontext=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 tcontext=system_u:object_r:lib_t:s0 tclass=file node=Newton.survey.ntua.gr type=SYSCALL msg=audit(1272642168.769:24): arch=40000003 syscall=125 success=no exit=-13 a0=65a0000 a1=22a000 a2=5 a3=3e624f0 items=0 ppid=4151 pid=4216 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=pts0 ses=1 comm="MATLAB" exe="/opt/MATHWORKS_R2008A/bin/glnx86/MATLAB" subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 key=(null) Hash String generated from allow_execmod,MATLAB,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;
Execute the chcon command suggested in the alert. # chcon -t textrel_shlib_t '/opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001' To make this permanent # semanage fcontext -a -t textrel_shlib_t '/opt/MATHWORKS_R2008A/sys/opengl/lib/glnx86/libGL.so.1.5.060001'