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This may or may not be related to https://bugzilla.redhat.com/show_bug.cgi?id=1263350 and the comments I made there; I couldn't tell so it seemed worth making a new bug. On a system with the unconfined module disabled, doing this: ``` rlpowell@stodi> sudo systemctl restart user rlpowell@stodi> sudo systemctl status user ● user - User Manager for UID 1052 Loaded: loaded (/usr/lib/systemd/system/user@.service; static; vendor preset: disabled) Active: active (running) since Sun 2016-12-04 21:32:29 PST; 7s ago Main PID: 20515 (systemd) Status: "Startup finished in 5ms." Tasks: 2 Memory: 2.5M CPU: 102ms CGroup: /user.slice/user-1052.slice/user └─init.scope ├─20515 /usr/lib/systemd/systemd --user └─20517 (sd-pam) Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Created slice -.slice. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: dbus.socket: Failed to listen on sockets: No such file or directory Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Failed to listen on D-Bus User Message Bus Socket. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: dbus.socket: Unit entered failed state. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Reached target Sockets. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Reached target Timers. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Reached target Basic System. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Reached target Default. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[20515]: Startup finished in 5ms. Dec 04 21:32:29 stodi.digitalkingdom.org systemd[1]: Started User Manager for UID 1052. ``` for a staff_t user results in: ``` type=AVC msg=audit(1480915949.459:2945): avc: denied { write } for pid=18800 comm="systemd" name="user" dev="cgroup" ino=835 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:cgroup_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480915949.459:2946): avc: denied { remove_name } for pid=18800 comm="systemd" name="init.scope" dev="cgroup" ino=840 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:cgroup_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480915949.459:2947): avc: denied { rmdir } for pid=18800 comm="systemd" name="init.scope" dev="cgroup" ino=840 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:cgroup_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480915949.579:2953): avc: denied { ioctl } for pid=20515 comm="systemd" path="socket:[312982]" dev="sockfs" ino=312982 ioctlcmd=0x5401 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:system_r:init_t:s0 tclass=unix_stream_socket permissive=1 type=AVC msg=audit(1480916032.710:2963): avc: denied { setpgid } for pid=20750 comm="timeout" scontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tcontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tclass=process permissive=1 type=AVC msg=audit(1480916032.725:2964): avc: denied { connectto } for pid=20751 comm="nc" path="/run/clamd.exim/clamd.sock" scontext=system_u:system_r:system_cronjob_t:s0-s0:c0.c1023 tcontext=system_u:system_r:antivirus_t:s0 tclass=unix_stream_socket permissive=1 type=AVC msg=audit(1480916036.248:2965): avc: denied { wake_alarm } for pid=1016 comm="systemd-udevd" capability=35 scontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tcontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tclass=capability2 permissive=1 ``` But for normal users it works fine. (Some of those AVCs are probably something else; sorry)
What's interesting to me is that this failure occurs even when setenforce 0. That is: with setenforce 0, systemd --user fails to actually work because it doesn't set up the dbus properly, and it appears to be selinux's fault. Maybe something else is causing the failure, though?, hard to tell.
So I patched the above using audit2allow, and ran it again. This time it actually *succeeded*, so here's the AVCs from that run (with dontaudit off, and setenforce 0): type=AVC msg=audit(1480917931.883:3563): avc: denied { wake_alarm } for pid=1016 comm="systemd-udevd" capability=35 scontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tcont ext=system_u:system_r:udev_t:s0-s0:c0.c1023 tclass=capability2 permissive=1 type=AVC msg=audit(1480917931.894:3564): avc: denied { rlimitinh } for pid=31004 comm="unix_chkpwd" scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:chkpwd_ t:s0 tclass=process permissive=1 type=AVC msg=audit(1480917931.894:3565): avc: denied { siginh } for pid=31004 comm="unix_chkpwd" scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:chkpwd_t:s 0 tclass=process permissive=1 type=AVC msg=audit(1480917931.894:3566): avc: denied { noatsecure } for pid=31004 comm="unix_chkpwd" scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:chkpwd _t:s0 tclass=process permissive=1 type=AVC msg=audit(1480917931.959:3571): avc: denied { wake_alarm } for pid=1016 comm="systemd-udevd" capability=35 scontext=system_u:system_r:udev_t:s0-s0:c0.c1023 tcont ext=system_u:system_r:udev_t:s0-s0:c0.c1023 tclass=capability2 permissive=1 type=AVC msg=audit(1480917931.960:3572): avc: denied { read write } for pid=30998 comm="systemd" path="socket:[352447]" dev="sockfs" ino=352447 scontext=staff_u:staff_r:st aff_t:s0-s0:c0.c1023 tcontext=system_u:system_r:init_t:s0 tclass=unix_stream_socket permissive=1 type=AVC msg=audit(1480917931.960:3573): avc: denied { rlimitinh } for pid=30998 comm="systemd" scontext=system_u:system_r:init_t:s0 tcontext=staff_u:staff_r:staff_t:s0-s0 :c0.c1023 tclass=process permissive=1 type=AVC msg=audit(1480917931.960:3574): avc: denied { siginh } for pid=30998 comm="systemd" scontext=system_u:system_r:init_t:s0 tcontext=staff_u:staff_r:staff_t:s0-s0:c0 .c1023 tclass=process permissive=1 type=AVC msg=audit(1480917931.960:3575): avc: denied { read execute } for pid=30998 comm="systemd" path="/usr/lib/systemd/systemd" dev="vda2" ino=534955 scontext=staff_u:s taff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:init_exec_t:s0 tclass=file permissive=1 type=AVC msg=audit(1480917931.968:3576): avc: denied { add_name } for pid=30998 comm="systemd" name="init.scope" scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=s ystem_u:object_r:cgroup_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480917931.968:3577): avc: denied { create } for pid=30998 comm="systemd" name="init.scope" scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=sta ff_u:object_r:cgroup_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480917931.968:3578): avc: denied { getattr } for pid=30998 comm="systemd" path="/sys/fs/cgroup/cpu" dev="tmpfs" ino=9880 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:tmpfs_t:s0 tclass=lnk_file permissive=1 type=AVC msg=audit(1480917931.978:3579): avc: denied { read } for pid=30998 comm="systemd" name="mount" dev="tmpfs" ino=12299 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:mount_var_run_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480917931.984:3580): avc: denied { read } for pid=30998 comm="systemd" name="cpu" dev="tmpfs" ino=9880 scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:tmpfs_t:s0 tclass=lnk_file permissive=1 type=AVC msg=audit(1480917931.985:3581): avc: denied { add_name } for pid=30998 comm="systemd" name="dbus.socket" scontext=staff_u:staff_r:staff_t:s0-s0:c0.c1023 tcontext=system_u:object_r:cgroup_t:s0 tclass=dir permissive=1 type=AVC msg=audit(1480917933.711:3585): avc: denied { read write } for pid=1 comm="systemd" path="socket:[350620]" dev="sockfs" ino=350620 scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=unix_stream_socket permissive=1 type=AVC msg=audit(1480917933.792:3586): avc: denied { read write } for pid=1 comm="systemd" path="socket:[350622]" dev="sockfs" ino=350622 scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:kernel_t:s0-s0:c0.c1023 tclass=unix_stream_socket permissive=1 The module I added has this: fs_delete_cgroup_dirs(staff_t) init_ioctl_stream_sockets(staff_t)
FWIW, here's the full working module; I've not confirmed that everything in here is necessary, but the mount_var_run_t bit definitely is: policy_module(MYLOCAL_systemdbugs1401385,1.0.0) require { type staff_t; type mount_var_run_t; class dir { read }; } # systemd + staff_t -- https://bugzilla.redhat.com/show_bug.cgi?id=1401385 fs_delete_cgroup_dirs(staff_t) init_ioctl_stream_sockets(staff_t) fs_manage_cgroup_dirs(staff_t) fs_read_tmpfs_symlinks(staff_t) init_exec(staff_t) init_rw_stream_sockets(staff_t) allow staff_t mount_var_run_t:dir read;
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