InformationYou should verify that the daemon.json file individual ownership and group ownership is correctly set to root, if it is in use.
The daemon.json file contains sensitive parameters that could alter the behavior of the docker daemon. It should therefore be owned and group owned by root to ensure it can not be modified by less privileged users.
SolutionIf the daemon.json file is present, you should execute the command below:
chown root:root /etc/docker/daemon.json
This sets the ownership and group ownership for the file to root.
This file may not be present on the system, and in that case, this recommendation is not applicable.