Kubernetes overlap conflict

I have these configurations on my kubernetes cluster initialized with kube admin:
–service-cluster-ip-range = / 12

I use weave as network overlay with:

The master and slave node are configured with these network:
172.31.4.x / 26

and finaly docker on:

Is there an overlap of networko? How can I check? and where can I find literature about it? I read the kubernets documentations but found nothing


Source: StackOverflow