Bug 2016451

Description of problem:

See below error in RHEL-8.6 auto test with NetworkManager-1.34.0-0.2.el8.x86_64 installed.

[root@ip-10-116-2-236 ec2-user]# systemd-analyze verify nm-sudo.service
/usr/lib/systemd/system/nm-sudo.service:47: Unknown lvalue 'ProtectClock' in section 'Service'
/usr/lib/systemd/system/nm-sudo.service:50: Unknown lvalue 'ProtectHostname' in section 'Service'
/usr/lib/systemd/system/nm-sudo.service:51: Unknown lvalue 'ProtectKernelLogs' in section 'Service'
[root@ip-10-116-2-236 ec2-user]# rpm -qf /usr/lib/systemd/system/nm-sudo.service
NetworkManager-1.34.0-0.2.el8.x86_64
[root@ip-10-116-2-236 ec2-user]# cat /usr/lib/systemd/system/nm-sudo.service
[Unit]
Description=NetworkManager Sudo Helper
#
# nm-sudo exists for privilege separation. It allows to run NetworkManager
# without certain capabilities, and ask nm-sudo for special operations
# where more privileges are required.
#
# While nm-sudo has privileges that NetworkManager has not, it does not
# mean that itself should run totally unconstrained. On the contrary, it
# also should only have permissions it requires.
#
# nm-sudo rejects all requests that come from any other than the name
# owner of "org.freedesktop.NetworkManager" (that is, NetworkManager process
# itself). It is thus only an implementation detail and provides no public
# API to the user.

[Service]
Type=dbus
BusName=org.freedesktop.nm.sudo
ExecStart=/usr/libexec/nm-sudo
NotifyAccess=main

# Extra configuration options. Set via `systemctl edit nm-sudo.service`:
#
# FOR TESTING ONLY: disable authentication to allow requests from
# everybody. Don't set this outside of testing!
#Environment=NM_SUDO_NO_AUTH_FOR_TESTING=1
#
# The logging level for debug messages (to stdout).
#Environment=NM_SUDO_LOG=TRACE
#
# nm-sudo will exit on idle after timeout. Set timeout here
# or set to 2147483647 for infinity.
#Environment=NM_SUDO_IDLE_TIMEOUT_MSEC=10000

[Install]
Alias=dbus-org.freedesktop.nm.sudo.service

[Service]
# Restrict:
AmbientCapabilities=
CapabilityBoundingSet=
PrivateDevices=true
PrivateMounts=true
PrivateNetwork=true
PrivateTmp=true
ProtectClock=true
ProtectControlGroups=true
ProtectHome=true
ProtectHostname=true
ProtectKernelLogs=true
ProtectKernelModules=true
ProtectKernelTunables=true
ProtectSystem=strict
RestrictAddressFamilies=
RestrictNamespaces=true
SystemCallFilter=~@clock
SystemCallFilter=~@cpu-emulation
SystemCallFilter=~@debug
SystemCallFilter=~@module
SystemCallFilter=~@mount
SystemCallFilter=~@obsolete
SystemCallFilter=~@privileged
SystemCallFilter=~@raw-io
SystemCallFilter=~@reboot
SystemCallFilter=~@swap
NoNewPrivileges=true
SupplementaryGroups=

# Grant:
CapabilityBoundingSet=CAP_DAC_OVERRIDE
PrivateUsers=no
RestrictAddressFamilies=AF_UNIX
SystemCallFilter=@resources

RHEL Version:
RHEL-8.6(4.18.0-348.3.el8.x86_64)

How reproducible:
100%

Steps to Reproduce:
1. launch a rhel8.6 instance
2. run 'systemd-analyze verify nm-sudo.service'

Actual results:
Unknown lvalue found

Expected results:
All lvalue are correct

Additional info:
- No such issue in RHEL-9(NetworkManager-1.34.0-0.1.el9.x86_64)