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5b9cc7fb79
Automatic merge from submit-queue (batch tested with PRs 65897, 65909, 65856, 65815). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. make RBAC escalation error message more useful Fixes #65804 Tested by granting a namespaced admin role to a user, then attempt to grant a broader role as that user: ``` kubectl create rolebinding user1-admin --clusterrole=admin --user=user1 kubectl create rolebinding user2-volume --as=user1 --clusterrole=system:volume-scheduler --user=user2 ``` before: > Error from server (Forbidden): rolebindings.rbac.authorization.k8s.io "user2-volume" is forbidden: attempt to grant extra privileges: [{[get] [] [persistentvolumes] [] []} {[list] [] [persistentvolumes] [] []} {[patch] [] [persistentvolumes] [] []} {[update] [] [persistentvolumes] [] []} {[watch] [] [persistentvolumes] [] []} {[get] [storage.k8s.io] [storageclasses] [] []} {[list] [storage.k8s.io] [storageclasses] [] []} {[watch] [storage.k8s.io] [storageclasses] [] []}] user=&{user1 [system:authenticated] map[]} ownerrules=[{[create] [authorization.k8s.io] [selfsubjectaccessreviews selfsubjectrulesreviews] [] []} {[get] [] [] [] [/api /api/* /apis /apis/* /healthz /openapi /openapi/* /swagger-2.0.0.pb-v1 /swagger.json /swaggerapi /swaggerapi/* /version /version/]} {[create delete deletecollection get list patch update watch] [] [pods pods/attach pods/exec pods/portforward pods/proxy] [] []} {[create delete deletecollection get list patch update watch] [] [configmaps endpoints persistentvolumeclaims replicationcontrollers replicationcontrollers/scale secrets serviceaccounts services services/proxy] [] []} {[get list watch] [] [bindings events limitranges namespaces/status pods/log pods/status replicationcontrollers/status resourcequotas resourcequotas/status] [] []} {[get list watch] [] [namespaces] [] []} {[impersonate] [] [serviceaccounts] [] []} {[create delete deletecollection get list patch update watch] [apps] [daemonsets deployments deployments/rollback deployments/scale replicasets replicasets/scale statefulsets statefulsets/scale] [] []} {[create delete deletecollection get list patch update watch] [autoscaling] [horizontalpodautoscalers] [] []} {[create delete deletecollection get list patch update watch] [batch] [cronjobs jobs] [] []} {[create delete deletecollection get list patch update watch] [extensions] [daemonsets deployments deployments/rollback deployments/scale ingresses networkpolicies replicasets replicasets/scale replicationcontrollers/scale] [] []} {[create delete deletecollection get list patch update watch] [policy] [poddisruptionbudgets] [] []} {[create delete deletecollection get list patch update watch] [networking.k8s.io] [networkpolicies] [] []} {[create] [authorization.k8s.io] [localsubjectaccessreviews] [] []} {[create delete deletecollection get list patch update watch] [rbac.authorization.k8s.io] [rolebindings roles] [] []}] ruleResolutionErrors=[] after > Error from server (Forbidden): rolebindings.rbac.authorization.k8s.io "user2-volume" is forbidden: user "user1" (groups=["system:authenticated"]) is attempting to grant RBAC permissions not currently held: > {APIGroups:[""], Resources:["persistentvolumes"], Verbs:["get" "list" "patch" "update" "watch"]} > {APIGroups:["storage.k8s.io"], Resources:["storageclasses"], Verbs:["get" "list" "watch"]}