Description of problem:

So far I collected 122 alerts of that kind on a laptop which occasionally is used pretty intensively but it also has a prolonged periods when it is not powered on at all:

SELinux is preventing chronyd from sendto access on the unix_dgram_socket /run/chrony/chronyc.783.sock.

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

If you believe that chronyd should be allowed sendto access on the chronyc.783.sock unix_dgram_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 'chronyd' --raw | audit2allow -M my-chronyd
# semodule -X 300 -i my-chronyd.pp

Additional Information:
Source Context                system_u:system_r:chronyd_t:s0
Target Context                system_u:system_r:unconfined_service_t:s0
Target Objects                /run/chrony/chronyc.783.sock [ unix_dgram_socket ]
Source                        chronyd
Source Path                   chronyd
Port                          <Unknown>
Host                          aaa.bbb.cc
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-158.24.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     aaa.bbb.cc
Platform                      Linux aaa.bbb.cc 4.8.8-100.fc23.x86_64 #1
                              SMP Tue Nov 15 18:51:53 UTC 2016 x86_64 x86_64
Alert Count                   122
First Seen                    2016-06-24 12:18:28 MDT
Last Seen                     2016-11-27 13:09:58 MST
Local ID                      6375dca9-dd0b-4536-a352-58fc9d05f5fb

Raw Audit Messages
type=AVC msg=audit(1480277398.118:209): avc:  denied  { sendto } for  pid=690 comm="chronyd" path="/run/chrony/chronyc.783.sock" scontext=system_u:system_r:chronyd_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=unix_dgram_socket permissive=1


Hash: chronyd,chronyd_t,unconfined_service_t,unix_dgram_socket,sendto
ryjek:$ cat alert.chrony 
SELinux is preventing chronyd from sendto access on the unix_dgram_socket /run/chrony/chronyc.783.sock.

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

If you believe that chronyd should be allowed sendto access on the chronyc.783.sock unix_dgram_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 'chronyd' --raw | audit2allow -M my-chronyd
# semodule -X 300 -i my-chronyd.pp

Additional Information:
Source Context                system_u:system_r:chronyd_t:s0
Target Context                system_u:system_r:unconfined_service_t:s0
Target Objects                /run/chrony/chronyc.783.sock [ unix_dgram_socket ]
Source                        chronyd
Source Path                   chronyd
Port                          <Unknown>
Host                          aaa.bbb.cc
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.13.1-158.24.fc23.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     aaa.bbb.cc
Platform                      Linux aaa.bbb.cc 4.8.8-100.fc23.x86_64 #1
                              SMP Tue Nov 15 18:51:53 UTC 2016 x86_64 x86_64
Alert Count                   122
First Seen                    2016-06-24 12:18:28 MDT
Last Seen                     2016-11-27 13:09:58 MST
Local ID                      6375dca9-dd0b-4536-a352-58fc9d05f5fb

Raw Audit Messages
type=AVC msg=audit(1480277398.118:209): avc:  denied  { sendto } for  pid=690 comm="chronyd" path="/run/chrony/chronyc.783.sock" scontext=system_u:system_r:chronyd_t:s0 tcontext=system_u:system_r:unconfined_service_t:s0 tclass=unix_dgram_socket permissive=1


Hash: chronyd,chronyd_t,unconfined_service_t,unix_dgram_socket,sendto



Version-Release number of selected component (if applicable):
selinux-policy-3.13.1-158.24.fc23

How reproducible:
see "Alert Count"