None
This rarely happens in some environments mostly at image generation time, hence, it's not straightforward to reproduce.
To avoid this a fix has been introduced upstream, to avoid this issue in upcoming releases it should be ported downstream as well.
https://github.com/openshift/sandboxed-containers-operator/commit/a4e4814092df7ff9e8ef7ef31d059f58cdc8d1b8
KATA-2980 controller-manager gets OOMKILLed when kataconfig is created
KATA-2790 Controller Manager is OOM killed on Single Node Cluster
Merge request - Increase memory limit to avoid OOMKilled