Update to systemd 246

[tjkirch]

https://github.com/systemd/systemd/blob/master/NEWS

I tried updating from systemd 245 to 246, but the wicked nanny service fails to start about half of the time, maybe more - maybe a timing issue. So far all I have is the console message saying "Failed to start wicked network nanny service", which prevents most networking from starting up.

[bcressey]

We're hitting SELinux denials because of two changes in v246.

systemd/systemd@4f07ddf causes this kernel denial:

avc:  denied  { write } for
  pid=1 comm="systemd"
  path="pipe:[12129]" dev="pipefs" ino=12129
  scontext=system_u:system_r:init_t:s0
  tcontext=system_u:system_r:api_t:s0
  tclass=fifo_file permissive=0

systemd/systemd@77ee178 causes this userspace denial:

Sep 18 21:35:11 localhost systemd[1]: Starting D-Bus System Message Bus...
Sep 18 21:35:11 localhost systemd[286]: selinux: avc:  netlink recvfrom: error 9

(PID 286 is dbus-broker-launcher.)

[bcressey]

The userspace denial seems harmless. The EBADFD or bad file descriptor error happens only when starting dbus-broker,
apparently because systemd is trying to access the dbus socket before the server is ready.