**Affected Versions**:

- kubelet v1.20 - v1.21
- kubelet v1.22.0 - v1.22.13
- kubelet v1.23.0 - v1.23.10
- kubelet v1.24.0 - v1.24.4

**How do I mitigate this vulnerability?**

There are no known mitigations to this vulnerability.

**Fixed Versions**:

- kubelet v1.22.14
- kubelet v1.23.11
- kubelet v1.24.5
- kubelet v1.25.0

#### From a specific node syslog

The CNI plugins are executed by threads in the `kubelet` process.  The CNI plugins logs end up the syslog
under the `kubelet` process. On systems with `journalctl` the following is an example command line
to view the last 1000 `kubelet` logs via the `less` utility to allow for `vi`-style searching:

```console
$ journalctl -t kubelet -n 1000 | less
```

#### GKE via Stackdriver Log Viewer

are installed to “/usr/libexec/kubernetes/kubelet-plugins/volume/exec/” on
every node, instead of being compiled into the Kubernetes binary. See [example](examples/volumes/flexvolume/README.md) for details.
  * vendor volumes into a pod. It expects vendor drivers are installed in the
volume plugin path on each kubelet node. This is an alpha feature and may
change in future.

  // Setting this field is optional. It has a maximum size of 32 entries.
  // If null (or empty), it is assumed this allocation will be processed by a
  // single kubelet plugin with no ResourceHandle data attached. The name of
  // the kubelet plugin invoked will match the DriverName set in the
  // ResourceClaimStatus this AllocationResult is embedded in.
  //
  // +listType=atomic
  // +optional
  repeated ResourceHandle resourceHandles = 1;

- Terminated Pods on a node will not be re-admitted on kubelet restart. This fixes the problem of Completed Pods awaiting for the finalizer marked as Failed after the kubelet restart. ([#127207](https://github.com/kubernetes/kubernetes/pull/127207), [@SergeyKanzhelev](https://github.com/SergeyKanzhelev)) [SIG Node and Testing]

	}

	installLog.Debugf("CNI config file %s exists, proceeding", cniConfigFilepath)

	return cniConfigFilepath, err
}

// Follows the same semantics as kubelet
// https://github.com/kubernetes/kubernetes/blob/954996e231074dc7429f7be1256a579bedd8344c/pkg/kubelet/dockershim/network/cni/cni.go#L144-L184
func getDefaultCNINetwork(confDir string) (string, error) {
	files, err := libcni.ConfFiles(confDir, []string{".conf", ".conflist"})

// they use the node-driver-registrar sidecar container, the kubelet will
// automatically populate the CSINode object for the CSI driver as part of
// kubelet plugin registration.
// CSINode has the same name as a node. If the object is missing, it means either
// there are no CSI Drivers available on the node, or the Kubelet version is low
// enough that it doesn't create this object.

  // Empty if not yet allocated.
  // +optional
  optional string carpIP = 6;

  // RFC 3339 date and time at which the object was acknowledged by the Kubelet.
  // This is before the Kubelet pulled the container image(s) for the carp.
  // +optional
  optional k8s.io.apimachinery.pkg.apis.meta.v1.Time startTime = 7;

// they use the node-driver-registrar sidecar container, the kubelet will
// automatically populate the CSINode object for the CSI driver as part of
// kubelet plugin registration.
// CSINode has the same name as a node. If the object is missing, it means either
// there are no CSI Drivers available on the node, or the Kubelet version is low
// enough that it doesn't create this object.

  optional EventSeries series = 3;

  // reportingController is the name of the controller that emitted this Event, e.g. `kubernetes.io/kubelet`.
  // This field cannot be empty for new Events.
  // +optional
  optional string reportingController = 4;

  // reportingInstance is the ID of the controller instance, e.g. `kubelet-xyzf`.
  // This field cannot be empty for new Events and it can have at most 128 characters.
  // +optional