After booting up Fedora 25 Atomic Host, the following SELinux denial was observed: audit[623]: AVC avc: denied { write } for pid=623 comm="systemd-journal" name="var" dev="dm-0" ino=2708768 scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=dir permissive=0 I understand that F25 is considered old now, but I wanted to report this for posterity. # rpm-ostree status State: idle Deployments: ● fedora-atomic:fedora-atomic/25/x86_64/testing/docker-host Version: 25.188 (2017-08-04 21:35:28) Commit: ddc19e4bf6d88faaa4019b5e530051d9ac4a41e82178e4e107706bc6f97b44c8 # rpm -q selinux-policy selinux-policy-3.13.1-225.19.fc25.noarch
Is your /var empty? Why would syslog be writing to /var and not to /var/log?
/var does not appear to be empty; not sure why it is not writing to /var/log # cd /var # ls -la total 12 drwxr-xr-x. 24 root root 4096 Aug 1 20:05 . drwxr-xr-x. 11 root root 253 Aug 7 14:12 .. drwxr-xr-x. 2 root root 6 Aug 1 20:05 adm drwxr-xr-x. 4 root root 36 Aug 1 20:08 cache drwxr-xr-x. 3 root root 18 Aug 1 20:05 db drwxr-xr-x. 3 root root 18 Aug 1 20:05 empty drwxr-xr-x. 2 root root 6 Aug 1 20:05 ftp drwxr-xr-x. 2 root root 6 Aug 1 20:05 games drwxr-xr-x. 2 root root 6 Aug 1 20:05 gopher drwxr-xr-x. 3 root root 21 Jul 5 07:13 home drwxr-xr-x. 3 root root 18 Aug 1 20:05 kerberos drwxr-xr-x. 31 root root 4096 Aug 1 20:05 lib drwxr-xr-x. 2 root root 6 Aug 1 20:05 local lrwxrwxrwx. 1 root root 11 Jul 5 07:13 lock -> ../run/lock drwxr-xr-x. 9 root root 159 Aug 7 15:15 log lrwxrwxrwx. 1 root root 10 Aug 1 20:05 mail -> spool/mail drwxr-xr-x. 2 root root 6 Jul 5 07:13 mnt drwxr-xr-x. 2 root root 6 Aug 1 20:05 nis drwxr-xr-x. 2 root root 6 Jul 5 07:13 opt -rw-r--r--. 1 root root 0 Jul 5 07:13 .ostree-selabeled drwxr-xr-x. 2 root root 6 Aug 1 20:05 preserve drwx------. 2 root root 129 Aug 1 20:09 roothome lrwxrwxrwx. 1 root root 6 Jul 5 07:13 run -> ../run drwxr-xr-x. 5 root root 45 Aug 1 20:05 spool drwxr-xr-x. 2 root root 6 Jul 5 07:13 srv drwxrwxrwt. 2 root root 6 Jul 5 07:13 tmp -rw-r--r--. 1 root root 163 Jan 1 1970 .updated drwxr-xr-x. 11 root root 114 Jul 5 07:13 usrlocal drwxr-xr-x. 2 root root 6 Aug 1 20:05 yp The contextual log messages around the denial show that it happens after 'ostree-remount' runs: # journalctl -b | grep -C 10 'avc: denied' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-journald comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-journald comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-fsck-root comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-fsck-root comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=kmod-static-nodes comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit: CONFIG_CHANGE audit_enabled=1 old=1 auid=4294967295 ses=4294967295 subj=system_u:system_r:syslogd_t:s0 res=1 Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-remount-fs comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-sysctl comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=ostree-remount comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_STOP pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=ostree-remount comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[623]: AVC avc: denied { write } for pid=623 comm="systemd-journal" name="var" dev="dm-0" ino=2708768 scontext=system_u:system_r:syslogd_t:s0 tcontext=system_u:object_r:var_t:s0 tclass=dir permissive=0 Aug 07 15:15:16 fedora25ah-dev audit[623]: SYSCALL arch=c000003e syscall=83 success=no exit=-13 a0=7ffdeace8cc0 a1=1ed a2=8 a3=75b69a680 items=0 ppid=1 pid=623 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="systemd-journal" exe="/usr/lib/systemd/systemd-journald" subj=system_u:system_r:syslogd_t:s0 key=(null) Aug 07 15:15:16 fedora25ah-dev audit: PROCTITLE proctitle="/usr/lib/systemd/systemd-journald" Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=lvm2-lvmetad comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:16 fedora25ah-dev audit[1]: SERVICE_START pid=1 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:init_t:s0 msg='unit=systemd-journald comm="systemd" exe="/usr/lib/systemd/systemd" hostname=? addr=? terminal=? res=success' Aug 07 15:15:15 fedora25ah-dev systemd[1]: systemd 231 running in system mode. (+PAM +AUDIT +SELINUX +IMA -APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD +IDN) Aug 07 15:15:15 fedora25ah-dev systemd[1]: Detected virtualization qemu. Aug 07 15:15:15 fedora25ah-dev systemd[1]: Detected architecture x86-64. Aug 07 15:15:15 fedora25ah-dev systemd[1]: Set hostname to <fedora25ah-dev>. Aug 07 15:15:16 fedora25ah-dev systemd[1]: tmp.mount: Cannot add dependency job, ignoring: Unit tmp.mount is masked. Aug 07 15:15:16 fedora25ah-dev systemd[1]: tmp.mount: Cannot add dependency job, ignoring: Unit tmp.mount is masked.
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.