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Qt QSGRenderThread uses system resources to keep the lock transition files when desktop ( KDE PLasma ) is locked/non logged. Using proprietary nvidia/ati drivers, selinux is blocking the access of this resources making unable to unlock the desktop unless using terminal loginctl workaround. Confirmed that add access to the resources system returns to work. Log of the resulting problem: SELinux is preventing QSGRenderThread from execute access on the file 2F7661722F6C69622F7364646D2F233230353738353038202864656C6574656429. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that QSGRenderThread should be allowed execute access on the 2F7661722F6C69622F7364646D2F233230353738353038202864656C6574656429 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: # ausearch -c 'QSGRenderThread' --raw | audit2allow -M my-QSGRenderThread # semodule -X 300 -i my-QSGRenderThread.pp Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:xdm_var_lib_t:s0 Target Objects 2F7661722F6C69622F7364646D2F2332303537383530382028 64656C6574656429 [ file ] Source QSGRenderThread Source Path QSGRenderThread Port <Unknown> Host trex.bmw-carit.intra Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-220.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name trex.bmw-carit.intra Platform Linux trex.bmw-carit.intra 4.8.4-301.fc25.x86_64 #1 SMP Tue Oct 25 00:01:49 UTC 2016 x86_64 x86_64 Alert Count 4 First Seen 2016-11-07 17:34:11 CET Last Seen 2016-11-10 17:03:58 CET Local ID a8824324-a04f-4054-8d8a-1f7563cf4d19 Raw Audit Messages type=AVC msg=audit(1478793838.690:1679): avc: denied { execute } for pid=13927 comm="QSGRenderThread" path=2F7661722F6C69622F7364646D2F233230353738353038202864656C6574656429 dev="dm-0" ino=20578508 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xdm_var_lib_t:s0 tclass=file permissive=0 Hash: QSGRenderThread,xdm_t,xdm_var_lib_t,file,execute
I can no longer start sddm w/ Fedora 25. SELinux is preventing QSGRenderThread from execute access on the file 2F7661722F6C69622F7364646D2F23353236393538202864656C6574656429. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that QSGRenderThread should be allowed execute access on the 2F7661722F6C69622F7364646D2F23353236393538202864656C6574656429 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: # ausearch -c 'QSGRenderThread' --raw | audit2allow -M my-QSGRenderThread # semodule -X 300 -i my-QSGRenderThread.pp Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:xdm_var_lib_t:s0 Target Objects 2F7661722F6C69622F7364646D2F2335323639353820286465 6C6574656429 [ file ] Source QSGRenderThread Source Path QSGRenderThread Port <Unknown> Host gilboa-wx-dev Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-225.3.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name gilboa-wx-dev Platform Linux gilboa-wx-dev 4.8.15-300.fc25.x86_64 #1 SMP Thu Dec 15 23:10:23 UTC 2016 x86_64 x86_64 Alert Count 16 First Seen 2016-12-12 11:16:54 IST Last Seen 2017-01-09 19:49:39 IST Local ID 826ed34b-2d3e-4373-8205-d6870ad8fb22 Raw Audit Messages type=AVC msg=audit(1483984179.345:1571): avc: denied { execute } for pid=5176 comm="QSGRenderThread" path=2F7661722F6C69622F7364646D2F23353236393538202864656C6574656429 dev="dm-3" ino=526958 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xdm_var_lib_t:s0 tclass=file permissive=0
I am getting very similar SELinux Alerts: SELinux is preventing sddm-greeter from read access on the file core_pattern. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that sddm-greeter should be allowed read access on the core_pattern 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: # ausearch -c 'sddm-greeter' --raw | audit2allow -M my-sddmgreeter # semodule -X 300 -i my-sddmgreeter.pp Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:usermodehelper_t:s0 Target Objects core_pattern [ file ] Source sddm-greeter Source Path sddm-greeter Port <Unknown> Host localhost.localdomain Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-225.6.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name localhost.localdomain Platform Linux localhost.localdomain 4.9.9-200.fc25.x86_64 #1 SMP Thu Feb 9 17:28:13 UTC 2017 x86_64 x86_64 Alert Count 1 First Seen 2017-02-15 22:20:31 EST Last Seen 2017-02-15 22:20:31 EST Local ID 93c5abd1-1a10-4253-ba7f-28cbbf045f06 Raw Audit Messages type=AVC msg=audit(1487215231.247:153): avc: denied { read } for pid=1058 comm="sddm-greeter" name="core_pattern" dev="proc" ino=14422 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usermodehelper_t:s0 tclass=file permissive=0 Hash: sddm-greeter,xdm_t,usermodehelper_t,file,read SELinux is preventing QSGRenderThread from execute access on the file 2F7661722F6C69622F7364646D2F2332343930343437202864656C6574656429. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that QSGRenderThread should be allowed execute access on the 2F7661722F6C69622F7364646D2F2332343930343437202864656C6574656429 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: # ausearch -c 'QSGRenderThread' --raw | audit2allow -M my-QSGRenderThread # semodule -X 300 -i my-QSGRenderThread.pp Additional Information: Source Context system_u:system_r:xdm_t:s0-s0:c0.c1023 Target Context system_u:object_r:xdm_var_lib_t:s0 Target Objects 2F7661722F6C69622F7364646D2F2332343930343437202864 656C6574656429 [ file ] Source QSGRenderThread Source Path QSGRenderThread Port <Unknown> Host localhost.localdomain Source RPM Packages Target RPM Packages Policy RPM selinux-policy-3.13.1-225.6.fc25.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name localhost.localdomain Platform Linux localhost.localdomain 4.9.9-200.fc25.x86_64 #1 SMP Thu Feb 9 17:28:13 UTC 2017 x86_64 x86_64 Alert Count 1 First Seen 2017-02-15 22:20:32 EST Last Seen 2017-02-15 22:20:32 EST Local ID c0e9f833-1722-4c1e-b04a-7bc5c9537fad Raw Audit Messages type=AVC msg=audit(1487215232.480:156): avc: denied { execute } for pid=1058 comm="QSGRenderThread" path=2F7661722F6C69622F7364646D2F2332343930343437202864656C6574656429 dev="sda3" ino=2490447 scontext=system_u:system_r:xdm_t:s0-s0:c0.c1023 tcontext=system_u:object_r:xdm_var_lib_t:s0 tclass=file permissive=0 Hash: QSGRenderThread,xdm_t,xdm_var_lib_t,file,execute
I am running Fedora 25 with KDE Plasma Version 5.8.5. Kernel Version is 4.9.9-200.fc25.x86_64. Am using Nvidia proprietary drivers. Thanks, GregoryS
This message is a reminder that Fedora 25 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 25. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a Fedora 'version' of '25'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, simply change the 'version' to a later Fedora version. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora 25 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora, you are encouraged change the 'version' to a later Fedora version prior this bug is closed as described in the policy above. Although we aim to fix as many bugs as possible during every release's lifetime, sometimes those efforts are overtaken by events. Often a more recent Fedora release includes newer upstream software that fixes bugs or makes them obsolete.
Fedora 25 changed to end-of-life (EOL) status on 2017-12-12. Fedora 25 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora please feel free to reopen this bug against that version. If you are unable to reopen this bug, please file a new report against the current release. If you experience problems, please add a comment to this bug. Thank you for reporting this bug and we are sorry it could not be fixed.