Summary: SELinux is preventing /usr/bin/xauth "write" access on /usr/NX/home/nx. Detailed Description: [SELinux is in permissive mode. This access was not denied.] SELinux denied access requested by xauth. It is not expected that this access is required by xauth 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:xauth_t:s0-s0:c0.c1023 Target Context system_u:object_r:nx_server_home_ssh_t:s0 Target Objects /usr/NX/home/nx [ dir ] Source xauth Source Path /usr/bin/xauth Port <Unknown> Host (removed) Source RPM Packages xorg-x11-xauth-1.0.2-7.fc12 Target RPM Packages nxserver-3.4.0-8 Policy RPM selinux-policy-3.6.32-55.fc12 Selinux Enabled True Policy Type targeted Enforcing Mode Permissive Plugin Name catchall Host Name (removed) Platform Linux (removed) 2.6.31.6-162.fc12.x86_64 #1 SMP Fri Dec 4 00:06:26 EST 2009 x86_64 x86_64 Alert Count 18 First Seen IST 15:18:35 2009 דצמ 10 ה' Last Seen IST 15:40:38 2009 דצמ 10 ה' Local ID 596eda50-1a35-465c-98f0-26c37bfe73d5 Line Numbers Raw Audit Messages node=(removed) type=AVC msg=audit(1260452438.797:200): avc: denied { write } for pid=7890 comm="xauth" name="nx" dev=sda6 ino=1067521 scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=system_u:object_r:nx_server_home_ssh_t:s0 tclass=dir node=(removed) type=AVC msg=audit(1260452438.797:200): avc: denied { add_name } for pid=7890 comm="xauth" name=".Xauthority-c" scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=system_u:object_r:nx_server_home_ssh_t:s0 tclass=dir node=(removed) type=AVC msg=audit(1260452438.797:200): avc: denied { create } for pid=7890 comm="xauth" name=".Xauthority-c" scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:nx_server_home_ssh_t:s0 tclass=file node=(removed) type=AVC msg=audit(1260452438.797:200): avc: denied { write open } for pid=7890 comm="xauth" name=".Xauthority-c" dev=sda6 ino=148180 scontext=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:nx_server_home_ssh_t:s0 tclass=file node=(removed) type=SYSCALL msg=audit(1260452438.797:200): arch=c000003e syscall=2 success=yes exit=128 a0=7ffffd041f70 a1=c1 a2=180 a3=7ffffd041b60 items=0 ppid=7889 pid=7890 auid=480 uid=480 gid=466 euid=480 suid=480 fsuid=480 egid=466 sgid=466 fsgid=466 tty=(none) ses=10 comm="xauth" exe="/usr/bin/xauth" subj=unconfined_u:unconfined_r:xauth_t:s0-s0:c0.c1023 key=(null) Hash String generated from selinux-policy-3.6.32-55.fc12,catchall,xauth,xauth_t,nx_server_home_ssh_t,dir,write audit2allow suggests: #============= xauth_t ============== allow xauth_t nx_server_home_ssh_t:dir { write add_name }; allow xauth_t nx_server_home_ssh_t:file { write create open };
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-3.6.32-58.fc12.noarch
selinux-policy-3.6.32-59.fc12 has been submitted as an update for Fedora 12. http://admin.fedoraproject.org/updates/selinux-policy-3.6.32-59.fc12
selinux-policy-3.6.32-59.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-2009-13384