Constrain mount access

Hey all!

Cluster information:

Kubernetes version: 1.19.2
Cloud being used: private
Installation method: kubeadm init
Host OS: Ubuntu 20.04
CNI and version: Waeve Net: 2.7.0
CRI and version: Docker: 19.03.13

Problem description

Multiple users accessing the k8s cluster. Regarding performance, it is mandatory, that each user mounts local persistent volumes or host path. I’d like to constrain the users access to only a certain local directory (on each node) e.g. /mnt/user1. Currently, every user is able to mount each directory in /mnt

Could someone give me a suggestion, how this can be achieved?

I am looking forward for any help
Best Regards