Description of problem:
SELinux is preventing (machined) from 'mounton' accesses on the chr_file /run/systemd/unit-root/dev/kmsg.

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

If you believe that (machined) should be allowed mounton access on the kmsg chr_file 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 '(machined)' --raw | audit2allow -M my-machined
# semodule -X 300 -i my-machined.pp

Additional Information:
Source Context                system_u:system_r:init_t:s0
Target Context                system_u:object_r:kmsg_device_t:s0
Target Objects                /run/systemd/unit-root/dev/kmsg [ chr_file ]
Source                        (machined)
Source Path                   (machined)
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           
Policy RPM                    selinux-policy-3.14.5-16.fc32.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 5.4.0-2.fc32.x86_64 #1 SMP Mon Nov
                              25 22:45:19 UTC 2019 x86_64 x86_64
Alert Count                   27
First Seen                    2019-11-26 22:52:06 CET
Last Seen                     2019-11-26 22:55:52 CET
Local ID                      5e8463d0-a756-497c-8539-9d3d13e8e35a

Raw Audit Messages
type=AVC msg=audit(1574805352.734:263): avc:  denied  { mounton } for  pid=5068 comm="(imedated)" path="/run/systemd/unit-root/dev/kmsg" dev="devtmpfs" ino=2066 scontext=system_u:system_r:init_t:s0 tcontext=system_u:object_r:kmsg_device_t:s0 tclass=chr_file permissive=1


Hash: (machined),init_t,kmsg_device_t,chr_file,mounton

Version-Release number of selected component:
selinux-policy-3.14.5-16.fc32.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.11.3
hashmarkername: setroubleshoot
kernel:         5.4.0-2.fc32.x86_64
type:           libreport