Because overlay component instrumentation code runs as part of the service layer and is executed with root privileges, these components must be installed in the /usr/lpp/sva/overlay directory. You must have root privileges to write to this directory.

Changing the privileges of the /usr/lpp/sva/overlay directory could allow a non-root user to install a component that would then run with root privileges, creating a potential security exposure. For this reason, it is important that you ensure that the /usr/lpp/sva/overlay directory is only writeable by those with root privileges.