Description of problem: motion (web camera motion triggered recording) won't run. Version-Release number of selected component (if applicable): motion-3.3.0.trunkREV557-10.fc21.x86_64 How reproducible: Always Steps to Reproduce: 1. systemctl start motion Actual results: Feb 14 13:24:56 localhost systemd[1]: motion.service: main process exited, code=exited, status=127/n/a Feb 14 13:24:56 localhost systemd[1]: Unit motion.service entered failed state. Feb 14 13:24:56 localhost systemd[1]: motion.service failed. Expected results: Started working motion (web camera motion triggered recording service) I don't understand yet why motion would need execstack access though. Maybe bug in a motion rather than in Fedora SElinux labels(?). Additional info: $ sealert -l xxx SELinux is preventing /usr/bin/motion from using the execstack access on a process. ***** Plugin catchall (100. confidence) suggests ************************** If you believe that motion should be allowed execstack access on processes labeled motion_t 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 motion /var/log/audit/audit.log | audit2allow -M mypol # semodule -i mypol.pp Additional Information: Source Context system_u:system_r:motion_t:s0 Target Context system_u:system_r:motion_t:s0 Target Objects Unknown [ process ] Source motion Source Path /usr/bin/motion Port <Unknown> Host localhost Source RPM Packages motion-3.3.0.trunkREV557-10.fc21.x86_64 Target RPM Packages Policy RPM selinux-policy-3.13.1-105.3.fc21.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name localhost Platform Linux localhost 3.18.6-200.fc21.x86_64 #1 SMP Fri Feb 6 22:59:42 UTC 2015 x86_64 x86_64 Alert Count 53 First Seen 2015-02-07 21:34:29 EET Last Seen 2015-02-14 02:51:53 EET Raw Audit Messages type=AVC msg=audit(1423875113.913:974): avc: denied { execstack } for pid=13268 comm="motion" scontext=system_u:system_r:motion_t:s0 tcontext=system_u:system_r:motion_t:s0 tclass=process permissive=0 type=SYSCALL msg=audit(1423875113.913:974): arch=x86_64 syscall=mprotect success=no exit=EACCES a0=7fff23136000 a1=1000 a2=1000007 a3=34cfe1e2f0 items=0 ppid=1 pid=13268 auid=4294967295 uid=491 gid=39 euid=491 suid=491 fsuid=491 egid=39 sgid=39 fsgid=39 tty=(none) ses=4294967295 comm=motion exe=/usr/bin/motion subj=system_u:system_r:motion_t:s0 key=(null) Hash: motion,motion_t,motion_t,process,execstack
libOpenCL seems to be to blame: $ ldd /usr/bin/motion | perl -ane 'print $F[2],"\n";' | xargs execstack -q | grep X X /usr/lib64/nvidia-304xx/libOpenCL.so.1 $ rpm -qf /usr/lib64/nvidia-304xx/libOpenCL.so.1 xorg-x11-drv-nvidia-304xx-libs-304.125-1.fc21.x86_64
Also, after I allowed that execstack SELinux-access for motion, I got another SELinux permission denied notification: Feb 17 20:24:39 localhost motion[5803]: /usr/bin/motion: error while loading shared libraries: libOpenCL.so.1: cannot enable executable stack as shared object requires: Permission denied Feb 17 20:24:40 localhost python[5805]: SELinux is preventing /usr/bin/motion from using the execmem access on a process. After allowing that also, then: Feb 17 20:31:16 localhost python[20556]: SELinux is preventing /usr/bin/motion from read access on the chr_file urandom. " $ sealert -l XXXXXXXXXXX SELinux is preventing /usr/bin/motion from read access on the chr_file urandom. If you want to enable reading of urandom for all domains. Then you must tell SELinux about this by enabling the 'global_ssp' boolean. You can read 'None' man page for more details. Do setsebool -P global_ssp 1 Additional Information: Source Context system_u:system_r:motion_t:s0 Target Context system_u:object_r:urandom_device_t:s0 Target Objects urandom [ chr_file ] Source motion Source Path /usr/bin/motion Port <Unknown> Host localhost Source RPM Packages motion-3.3.0.trunkREV557-10.fc21.x86_64 Target RPM Packages Policy RPM selinux-policy-3.13.1-105.3.fc21.noarch Selinux Enabled True Policy Type targeted Enforcing Mode Enforcing Host Name localhost Platform Linux localhost 3.18.6-200.fc21.x86_64 #1 SMP Fri Feb 6 22:59:42 UTC 2015 x86_64 x86_64 Alert Count 1 First Seen 2015-02-17 20:31:15 EET Last Seen 2015-02-17 20:31:15 EET ... Raw Audit Messages type=AVC msg=audit(1424197875.771:12989): avc: denied { read } for pid=28128 comm="motion" name="urandom" dev="devtmpfs" ino=1033 scontext=system_u:system_r:motion_t:s0 tcontext=system_u:object_r:urandom_device_t:s0 tclass=chr_file permissive=0 type=SYSCALL msg=audit(1424197875.771:12989): arch=x86_64 syscall=open success=no exit=EACCES a0=3dba8f2d90 a1=0 a2=0 a3=11f items=0 ppid=1 pid=28128 auid=4294967295 uid=491 gid=39 euid=491 suid=491 fsuid=491 egid=39 sgid=39 fsgid=39 tty=(none) ses=4294967295 comm=motion exe=/usr/bin/motion subj=system_u:system_r:motion_t:s0 key=(null) Hash: motion,motion_t,urandom_device_t,chr_file,read "
This message is a reminder that Fedora 21 is nearing its end of life. Approximately 4 (four) weeks from now Fedora will stop maintaining and issuing updates for Fedora 21. 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 '21'. 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 21 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 21 changed to end-of-life (EOL) status on 2015-12-01. Fedora 21 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.