Summary: SELinux is preventing /usr/bin/Xephyr "execute" access on /dev/zero. Detailed Description: [Xephyr has a permissive type (sandbox_xserver_t). This access was not denied.] SELinux denied access requested by Xephyr. It is not expected that this access is required by Xephyr and this access may signal an intrusion attempt. It is also possible that the specific version or configuration of the application is causing it to require additional access. Allowing Access: You can generate a local policy module to allow this access - see FAQ (http://fedora.redhat.com/docs/selinux-faq-fc5/#id2961385) Please file a bug report. Additional Information: Source Context unconfined_u:unconfined_r:sandbox_xserver_t:s0:c46 3,c713 Target Context system_u:object_r:zero_device_t:s0 Target Objects /dev/zero [ chr_file ] Source Xephyr Source Path /usr/bin/Xephyr Port <Unknown> Host (removed) Source RPM Packages xorg-x11-server-Xephyr-1.7.1-9.fc12 Target RPM Packages Policy RPM selinux-policy-3.6.32-56.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Plugin Name catchall Host Name (removed) Platform Linux (removed) 2.6.31.6-166.fc12.x86_64 #1 SMP Wed Dec 9 10:46:22 EST 2009 x86_64 x86_64 Alert Count 1 First Seen Wed 16 Dec 2009 02:57:57 PM CET Last Seen Wed 16 Dec 2009 02:57:57 PM CET Local ID 52ce2666-146a-48da-a304-e5661e58f08e Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1260971877.211:30): avc: denied { execute } for pid=6492 comm="Xephyr" path="/dev/zero" dev=tmpfs ino=2766 scontext=unconfined_u:unconfined_r:sandbox_xserver_t:s0:c463,c713 tcontext=system_u:object_r:zero_device_t:s0 tclass=chr_file node=(removed) type=SYSCALL msg=audit(1260971877.211:30): arch=c000003e syscall=9 success=yes exit=1078464512 a0=0 a1=2000 a2=7 a3=42 items=0 ppid=6483 pid=6492 auid=500 uid=500 gid=500 euid=500 suid=500 fsuid=500 egid=500 sgid=500 fsgid=500 tty=(none) ses=1 comm="Xephyr" exe="/usr/bin/Xephyr" subj=unconfined_u:unconfined_r:sandbox_xserver_t:s0:c463,c713 key=(null) Hash String generated from selinux-policy-3.6.32-56.fc12,catchall,Xephyr,sandbox_xserver_t,zero_device_t,chr_file,execute audit2allow suggests: audit2allow is not installed.
You can add these rules for now using # grep avc /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Fixed in selinux-policy-3.6.32-60.fc12.noarch
selinux-policy-3.6.32-63.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-63.fc12
selinux-policy-3.6.32-66.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-66.fc12
selinux-policy-3.6.32-66.fc12 has been pushed to the Fedora 12 testing repository. If problems still persist, please make note of it in this bug report. If you want to test the update, you can install it with su -c 'yum --enablerepo=updates-testing update selinux-policy'. You can provide feedback for this update here: http://admin.fedoraproject.org/updates/F12/FEDORA-2010-0184
selinux-policy-3.6.32-63.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.
selinux-policy-3.6.32-66.fc12 has been pushed to the Fedora 12 stable repository. If problems still persist, please make note of it in this bug report.