Hi Leon, have you tried mounting with 'httpd_sys_rw_content_t' instead of 'httpd_var_run_t' ? Best Regards, Strahil Nikolov На 25 юли 2020 г. 14:20:19 GMT+03:00, Leon Fauster via CentOS <centos at centos.org> написа: >Hi all, > >I have some AVC in the logs and wonder how to resolve this: Under >EL8 (enforcing SElinux) I have /var/lib/php/session mounted as tmpfs. > > ># tail -1 /etc/fstab >tmpfs /var/lib/php/session tmpfs >defaults,noatime,mode=770,gid=apache,size=16777216,context="system_u:object_r:httpd_var_run_t:s0" > > 0 0 > ># df -a |grep php >tmpfs 16384 0 16384 0% /var/lib/php/session > ># ls -laZ /var/lib/php/session >insgesamt 0 >drwxrwx---. 2 root apache system_u:object_r:httpd_var_run_t:s0 40 24. >Jul 15:36 . >drwxr-xr-x. 6 root root system_u:object_r:httpd_var_lib_t:s0 68 7. >Jul 10:54 .. > > >the applications can read the session data without any problems. > > > >When I reboot the system following AVC appears: > ># last |grep ^re|head -3 >reboot system boot 4.18.0-193.6.3.e Fri Jul 24 15:28 still running >reboot system boot 4.18.0-193.6.3.e Fri Jul 24 13:33 - 15:27 >(01:54) >reboot system boot 4.18.0-193.6.3.e Fri Jul 24 01:20 - 13:33 >(12:13) > > ># ausearch -m avc --start today >---- >time->Fri Jul 24 01:20:08 2020 >type=AVC msg=audit(1595546408.754:28): avc: denied { remount } for >pid=952 comm="(ostnamed)" scontext=system_u:system_r:init_t:s0 >tcontext=system_u:object_r:httpd_var_run_t:s0 tclass=filesystem >permissive=0 >---- >time->Fri Jul 24 13:34:04 2020 >type=AVC msg=audit(1595590444.080:29): avc: denied { remount } for >pid=1020 comm="(ostnamed)" scontext=system_u:system_r:init_t:s0 >tcontext=system_u:object_r:httpd_var_run_t:s0 tclass=filesystem >permissive=0 >---- >time->Fri Jul 24 15:28:40 2020 >type=AVC msg=audit(1595597320.783:28): avc: denied { remount } for >pid=934 comm="(ostnamed)" scontext=system_u:system_r:init_t:s0 >tcontext=system_u:object_r:httpd_var_run_t:s0 tclass=filesystem >permissive=0 > > >I wonder about the "remount" and the comm="ostnamed". > >I do not found any ostnamed application, the closest is hostnamed. > >Should the tmpfs be mounted differently (without fstab entry)? > >To get rid of the AVC I could add the corresponding policy >"allow init_t httpd_var_run_t:filesystem remount;" but is this >not a bit of overkill? > >Any hints about what the cause is? > >I'd really appreciate any ideas on this. > >-- >Leon > > > > > > > >_______________________________________________ >CentOS mailing list >CentOS at centos.org >https://lists.centos.org/mailman/listinfo/centos