Description of problem:
boot with enforcing=1 started failing for me as dbus is blocked from watching
system services directory, and can't recover.
this started after upgrade from F33 to F25.
SELinux is preventing dbus-broker-lau from 'watch' accesses on the directory /var/lib/snapd/dbus-1/system-services.

*****  Plugin catchall_labels (83.8 confidence) suggests   *******************

If you want to allow dbus-broker-lau to have watch access on the system-services directory
Then you need to change the label on /var/lib/snapd/dbus-1/system-services
Do
# semanage fcontext -a -t FILE_TYPE '/var/lib/snapd/dbus-1/system-services'
where FILE_TYPE is one of the following: dbusd_etc_t, system_dbusd_tmp_t, system_dbusd_tmpfs_t, system_dbusd_var_run_t, user_tmp_t, usr_t.
Then execute:
restorecon -v '/var/lib/snapd/dbus-1/system-services'


*****  Plugin catchall (17.1 confidence) suggests   **************************

If you believe that dbus-broker-lau should be allowed watch access on the system-services directory 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 'dbus-broker-lau' --raw | audit2allow -M my-dbusbrokerlau
# semodule -X 300 -i my-dbusbrokerlau.pp

Additional Information:
Source Context                system_u:system_r:system_dbusd_t:s0-s0:c0.c1023
Target Context                system_u:object_r:var_lib_t:s0
Target Objects                /var/lib/snapd/dbus-1/system-services [ dir ]
Source                        dbus-broker-lau
Source Path                   dbus-broker-lau
Port                          <Unknown>
Host                          (removed)
Source RPM Packages           
Target RPM Packages           snapd-2.54.1-1.fc35.x86_64
SELinux Policy RPM            selinux-policy-targeted-35.8-1.fc35.noarch
Local Policy RPM              selinux-policy-targeted-35.8-1.fc35.noarch
Selinux Enabled               True
Policy Type                   targeted
Enforcing Mode                Permissive
Host Name                     (removed)
Platform                      Linux (removed) 5.15.13-200.fc35.x86_64 #1 SMP Wed
                              Jan 5 16:39:13 UTC 2022 x86_64 x86_64
Alert Count                   2
First Seen                    2022-01-07 04:50:06 EST
Last Seen                     2022-01-07 19:06:06 EST
Local ID                      449326c4-b4ca-40ce-b727-78bbb4b48f75

Raw Audit Messages
type=AVC msg=audit(1641600366.953:138): avc:  denied  { watch } for  pid=883 comm="dbus-broker-lau" path="/var/lib/snapd/dbus-1/system-services" dev="nvme0n1p6" ino=2370118 scontext=system_u:system_r:system_dbusd_t:s0-s0:c0.c1023 tcontext=system_u:object_r:var_lib_t:s0 tclass=dir permissive=1


Hash: dbus-broker-lau,system_dbusd_t,var_lib_t,dir,watch

Version-Release number of selected component:
selinux-policy-targeted-35.8-1.fc35.noarch

Additional info:
component:      selinux-policy
reporter:       libreport-2.15.2
hashmarkername: setroubleshoot
kernel:         5.15.13-200.fc35.x86_64
type:           libreport