StatefulSet VolumeClaimTemplates stopped working recently

I have a StatefulSet that has been running on Linode for a few months, and after a recent cluster upgrade, the pod is no longer able to mount the volume.

To illustrate the problem, I created the simplest possible statefulset (straight out of the kubernetes documentation, with some Linode-specific changes to the spec) and tried to deploy it to my cluster:

apiVersion: v1
kind: Service
metadata:
  name: nginx
  labels:
    app: nginx
spec:
  ports:
  - port: 80
    name: web
  clusterIP: None
  selector:
    app: nginx
---
apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: web
spec:
  selector:
    matchLabels:
      app: nginx
  serviceName: "nginx"
  replicas: 1
  template:
    metadata:
      labels:
        app: nginx
    spec:
      terminationGracePeriodSeconds: 10
      containers:
      - name: nginx
        image: k8s.gcr.io/nginx-slim:0.8
        ports:
        - containerPort: 80
          name: web
        volumeMounts:
        - name: www
          mountPath: /usr/share/nginx/html
  volumeClaimTemplates:
  - metadata:
      name: www
    spec:
      accessModes: [ "ReadWriteOnce" ]
      storageClassName: "linode-block-storage-retain"
      resources:
        requests:
          storage: 10Gi

This fails with the following error:

$ kubectl describe pod web-0
 Events:
  Type     Reason              Age              From                     Message
  ----     ------              ----             ----                     -------
 Warning  FailedAttachVolume  0s (x3 over 2s)  attachdetach-controller  AttachVolume.Attach failed for volume "pvc-6675d1525e224fd5" : csinode.storage.k8s.io "lke14531-17810-5fca422f0e88" not found
$ kubectl get pvc -o wide
NAME        STATUS   VOLUME                 CAPACITY   ACCESS MODES   STORAGECLASS                  AGE     VOLUMEMODE
www-web-0   Bound    pvc-6675d1525e224fd5   10Gi       RWO            linode-block-storage-retain   6m51s   Filesystem

As you can see from the above, the volume fails to mount with an error that it does not exist -- despite the fact that the pvc clearly does exist and is bound to a pv.

Has anyone else had this problem?

If I could just get one complete simple example of a StatefulSet with volumeClaimTemplates that works on Linode, I would be satisfied.

Here's the version info:

$ kubectl version
Server Version: version.Info{Major:"1", Minor:"20", GitVersion:"v1.20.11", GitCommit:"27522a29febbcc4badac257763044d0d90c11abd", GitTreeState:"clean", BuildDate:"2021-09-15T19:16:25Z", GoVersion:"go1.15.15", Compiler:"gc", Platform:"linux/amd64"}

Thanks in advance for any help or ideas!