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Description of problem: Not possible to start a plasma-wayland session from sddm. Likely because of SELinux. Version-Release number of selected component (if applicable): 3.13.1-157.fc23 Steps to Reproduce: 1. Install plasma-workspace-wayland 2. Reboot 3. Select Plasma Wayland (Wayland) from sddm menu 4. Login Actual results: Black screen, then dropped back to sddm Expected results: Entering a plasma-wayland session Additional Info (from syslog): Dez 13 12:25:57 johnp-pc setroubleshoot[1983]: SELinux is preventing sddm-helper from create access on the file .wayland-errors. For complete SELinux messages. run sealert -l 2e70ea4e-dfe3-4d21-ad9a-16ce8fddbda9 Dez 13 12:25:57 johnp-pc python3[1983]: SELinux is preventing sddm-helper from create access on the file .wayland-errors. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that sddm-helper should be allowed create access on the .wayland-errors file 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 sddm-helper /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Dez 13 12:25:57 johnp-pc setroubleshoot[1983]: SELinux is preventing sddm-helper from entrypoint access on the file /etc/sddm/wayland-session. For complete SELinux messages. run sealert -l 4c899f1b-84ad-4624-9781-a8cf7be23ee4 Dez 13 12:25:57 johnp-pc python3[1983]: SELinux is preventing sddm-helper from entrypoint access on the file /etc/sddm/wayland-session. ***** Plugin catchall_labels (83.8 confidence) suggests ******************* If you want to allow sddm-helper to have entrypoint access on the wayland-session file Then you need to change the label on /etc/sddm/wayland-session Do # semanage fcontext -a -t FILE_TYPE '/etc/sddm/wayland-session' where FILE_TYPE is one of the following: bin_t, gkeyringd_exec_t, mount_ecryptfs_exec_t, mount_exec_t, mozilla_exec_t, shell_exec_t, telepathy_gabble_exec_t, telepathy_idle_exec_t, telepathy_logger_exec_t, telepathy_mission_control_exec_t, telepathy_msn_exec_t, telepathy_salut_exec_t, telepathy_sofiasip_exec_t, telepathy_stream_engine_exec_t, telepathy_sunshine_exec_t, unconfined_exec_t, user_cron_spool_t, user_home_t, usr_t, xsession_exec_t. Then execute: restorecon -v '/etc/sddm/wayland-session' ***** Plugin catchall (17.1 confidence) suggests ************************** If you believe that sddm-helper should be allowed entrypoint access on the wayland-session file 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 sddm-helper /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp
commit db7036d49b628edbcec58930d576a6e8ad822bfc Author: Lukas Vrabec <lvrabec@redhat.com> Date: Thu Dec 10 13:22:11 2015 +0100 Label ssdm binaries storedin /etc/sddm/ as bin_t. BZ(1291085)
selinux-policy-3.13.1-158.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2015-eb32da49ac
selinux-policy-3.13.1-158.fc23 has been pushed to the Fedora 23 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 'dnf --enablerepo=updates-testing update selinux-policy' You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2015-eb32da49ac
The first two entries in the syslog are still showing up. No create access to .wayland-errors is granted.
Details: SELinux is preventing sddm-helper from create access on the file .wayland-errors. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that sddm-helper should be allowed create access on the .wayland-errors file 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 sddm-helper /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:user_home_t:s0 Target Objects .wayland-errors [ file ] Source sddm-helper Source Path sddm-helper Port <Unknown> Host johnp-pc Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-158.fc23.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name johnp-pc Platform Linux johnp-pc 4.2.7-300.fc23.x86_64 #1 SMP Wed Dec 9 22:28:30 UTC 2015 x86_64 x86_64 Alert Count 4 First Seen 2015-11-21 21:35:43 CET Last Seen 2015-12-18 20:08:56 CET Local ID 2e70ea4e-dfe3-4d21-ad9a-16ce8fddbda9 Raw Audit Messages type=AVC msg=audit(1450465736.506:499): avc: denied { create } for pid=1752 comm="sddm-helper" name=".wayland-errors" scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:user_home_t:s0 tclass=file permissive=0 Hash: sddm-helper,xdm_t,user_home_t,file,create
selinux-policy-3.13.1-158.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
*** Bug 1294060 has been marked as a duplicate of this bug. ***