Red Hat Bugzilla – Bug 846188
SELinux is preventing /usr/lib64/xulrunner-2/plugin-container from using the 'ipc_lock' capabilities.
Last modified: 2012-09-18 01:31:00 EDT
libreport version: 2.0.10 executable: /usr/bin/python2.7 hashmarkername: setroubleshoot kernel: 3.5.0-2.fc17.x86_64 time: Tue 07 Aug 2012 12:06:40 AM CDT description: :SELinux is preventing /usr/lib64/xulrunner-2/plugin-container from using the 'ipc_lock' capabilities. : :***** Plugin catchall (100. confidence) suggests *************************** : :If you believe that plugin-container should have the ipc_lock capability by default. :Then you should report this as a bug. :You can generate a local policy module to allow this access. :Do :allow this access for now by executing: :# grep plugin-containe /var/log/audit/audit.log | audit2allow -M mypol :# semodule -i mypol.pp : :Additional Information: :Source Context unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c : 0.c1023 :Target Context unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c : 0.c1023 :Target Objects [ capability ] :Source plugin-containe :Source Path /usr/lib64/xulrunner-2/plugin-container :Port <Unknown> :Host (removed) :Source RPM Packages xulrunner-14.0.1-3.fc17.x86_64 :Target RPM Packages :Policy RPM selinux-policy-3.10.0-142.fc17.noarch :Selinux Enabled True :Policy Type targeted :Enforcing Mode Enforcing :Host Name (removed) :Platform Linux (removed) 3.5.0-2.fc17.x86_64 #1 SMP Mon Jul 30 : 14:48:59 UTC 2012 x86_64 x86_64 :Alert Count 2 :First Seen Mon 06 Aug 2012 07:07:29 PM CDT :Last Seen Mon 06 Aug 2012 07:07:35 PM CDT :Local ID 442c8711-ce51-461a-9504-4b39375e2e1f : :Raw Audit Messages :type=AVC msg=audit(1344298055.240:84): avc: denied { ipc_lock } for pid=22037 comm="plugin-containe" capability=14 scontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tcontext=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 tclass=capability : : :type=SYSCALL msg=audit(1344298055.240:84): arch=x86_64 syscall=mlock success=yes exit=0 a0=7f1522440000 a1=1000 a2=7fffb55fdfbc a3=1 items=0 ppid=1696 pid=22037 auid=1000 uid=1000 gid=1000 euid=1000 suid=1000 fsuid=1000 egid=1000 sgid=1000 fsgid=1000 tty=(none) ses=1 comm=plugin-containe exe=/usr/lib64/xulrunner-2/plugin-container subj=unconfined_u:unconfined_r:mozilla_plugin_t:s0-s0:c0.c1023 key=(null) : :Hash: plugin-containe,mozilla_plugin_t,mozilla_plugin_t,capability,ipc_lock : :audit2allow : :#============= mozilla_plugin_t ============== :allow mozilla_plugin_t self:capability ipc_lock; : :audit2allow -R : :#============= mozilla_plugin_t ============== :allow mozilla_plugin_t self:capability ipc_lock; :
I was running the google talk client and in a hangout at the time.
Do you have mozilla_plugin_t as permissive domain? syscall=mlock success=yes
I haven't changed anything from the stock install. How do I check?
We should dontaudit. Not sure how this can happen without a setuid app.
This could be a case where the SELinux check is done before the DAC check. The syscall is failing with success, because mlock probably checks the capability and falls back to a safe mode.
selinux-policy-3.10.0-146.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/selinux-policy-3.10.0-146.fc17
Package selinux-policy-3.10.0-146.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing selinux-policy-3.10.0-146.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-12355/selinux-policy-3.10.0-146.fc17 then log in and leave karma (feedback).
selinux-policy-3.10.0-146.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.
This appears to have resolved my issue -- thanks :-)