Summary: SELinux is preventing chrome from loading /opt/google/chrome/libffmpegsumo.so which requires text relocation. Detailed Description: The chrome application attempted to load /opt/google/chrome/libffmpegsumo.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/google/chrome/libffmpegsumo.so to use relocation as a workaround, until the library is fixed. Please file a bug report (http://bugzilla.redhat.com/bugzilla/enter_bug.cgi) against this package. Allowing Access: If you trust /opt/google/chrome/libffmpegsumo.so to run correctly, you can change the file context to textrel_shlib_t. "chcon -t textrel_shlib_t '/opt/google/chrome/libffmpegsumo.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/google/chrome/libffmpegsumo.so'" Fix Command: chcon -t textrel_shlib_t '/opt/google/chrome/libffmpegsumo.so' Additional Information: Source Context unconfined_u:unconfined_r:unconfined_t:s0 Target Context system_u:object_r:lib_t:s0 Target Objects /opt/google/chrome/libffmpegsumo.so [ file ] Source chrome Source Path /opt/google/chrome/chrome Port <Unknown> Host (removed) Source RPM Packages google-chrome-beta-5.0.375.29-46008 Target RPM Packages google-chrome-beta-5.0.375.29-46008 Policy RPM selinux-policy-3.5.13-74.fc10 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name allow_execmod Host Name (removed) Platform Linux (removed) 2.6.27.41-170.2.117.fc10.i686 #1 SMP Thu Dec 10 11:00:29 EST 2009 i686 athlon Alert Count 41 First Seen Thu 06 May 2010 11:42:59 AM IST Last Seen Wed 12 May 2010 12:46:35 PM IST Local ID 71578ca9-8144-48cb-a16a-597a5e8734fe Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1273648595.459:22): avc: denied { execmod } for pid=4343 comm="chrome" path="/opt/google/chrome/libffmpegsumo.so" dev=dm-0 ino=188929 scontext=unconfined_u:unconfined_r:unconfined_t:s0 tcontext=system_u:object_r:lib_t:s0 tclass=file node=(removed) type=SYSCALL msg=audit(1273648595.459:22): arch=40000003 syscall=125 success=no exit=-13 a0=5b87000 a1=140000 a2=5 a3=bfb5e1c0 items=0 ppid=0 pid=4343 auid=501 uid=501 gid=501 euid=501 suid=501 fsuid=501 egid=501 sgid=501 fsgid=501 tty=(none) ses=1 comm="chrome" exe="/opt/google/chrome/chrome" subj=unconfined_u:unconfined_r:unconfined_t:s0 key=(null) Hash String generated from allow_execmod,chrome,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;
Does # restorecon -R -v /opt/google Change the label? On F13 this is labeled textrel_shlib_t which would allow this access.
(In reply to comment #1) > Does > > # restorecon -R -v /opt/google > > Change the label? > > > On F13 this is labeled textrel_shlib_t which would allow this access. I was unable to open Google Chrome after issuing the restorecon command. Please find the outputs below. # restorecon -R -v /opt/google restorecon reset /opt/google/chrome/libffmpegsumo.so context system_u:object_r:lib_t:s0->system_u:object_r:textrel_shlib_t:s0 restorecon reset /opt/google/chrome/libgcflashplayer.so context system_u:object_r:lib_t:s0->system_u:object_r:textrel_shlib_t:s0 restorecon reset /opt/google/chrome/chrome-sandbox context system_u:object_r:usr_t:s0->system_u:object_r:chrome_sandbox_exec_t:s0 $ ./chrome ./chrome: error while loading shared libraries: libnss3.so.1d: cannot open shared object file: No such file or directory $ ls -lrt libnss3.so.1d lrwxrwxrwx. 1 root root 15 2010-05-14 08:45 libnss3.so.1d -> /lib/libnss3.so $ ls -lrt /lib/libnss3.so ls: cannot access /lib/libnss3.so: No such file or directory Afterwards, I reinstalled the Google Chrome package. It seems to be working fine now. SELinux is not throwing up any messages when I open Google Chrome. Thanks for the help.