Description of problem:
Exact duplicate of bug 1420522 (now closed)

How to reproduce:

systemctl start  cups-lpd.socket

Happens always.

The following socket operations are also denied:

accept bind create getattr ioctl listen setopt

Installing this selinux .te module fixes it for me:

module my_allow_cups_lpd 1.0;

require {
        type cupsd_lpd_t;
        type init_t;
        class tcp_socket { accept bind create getattr ioctl listen setopt };
}

#============= init_t ==============
allow init_t cupsd_lpd_t:tcp_socket { accept bind create getattr ioctl listen setopt };
SELinux is preventing systemd from 'create' accesses on the tcp_socket port None.

*****  Plugin catchall (100. confidence) suggests   **************************

If you believe that systemd should be allowed create access on the port None tcp_socket 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:
# ausearch -c 'systemd' --raw | audit2allow -M my-systemd
# semodule -X 300 -i my-systemd.pp

Additional Information:
Source Context                system_u:system_r:init_t:s0
Target Context                system_u:system_r:unconfined_service_t:s0
Target Objects                port None [ tcp_socket ]
Source                        systemd
Source Path                   systemd
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-260.4.fc26.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 4.12.5-300.fc26.i686+PAE #1 SMP
                              Mon Aug 7 15:58:11 UTC 2017 i686 i686
Alert Count                   1
First Seen                    2017-08-21 15:53:31 CEST
Last Seen                     2017-08-21 15:53:31 CEST
Local ID                      4327967e-f83e-4ba4-9415-91a0d319fee8

Raw Audit Messages
type=AVC msg=audit(1503323611.551:84): avc:  denied  { create } for  pid=1 comm="systemd" scontext=system_u:system_r:init_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=tcp_socket permissive=1


Hash: systemd,init_t,unconfined_service_t,tcp_socket,create

Version-Release number of selected component:
selinux-policy-3.13.1-260.4.fc26.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.9.1
hashmarkername: setroubleshoot
kernel:         4.12.5-300.fc26.i686+PAE
type:           libreport

Potential duplicate: bug 1399758