* Fix an issue where filesystems are not unmounted when a backend is not reachable and returns EIO. ([#67097](https://github.com/kubernetes/kubernetes/pull/67097), [@chakri-nelluri](https://github.com/chakri-nelluri))

- On compatible systems, a mounter's Unmount implementation is changed to not return an error when the specified target can be detected as not a mount point. On Linux, the behavior of detecting a mount point depends on `umount` command is validated when the mounter is created. Additionally, mount point checks will be skipped in CleanupMountPoint/CleanupMountWithForce if the mounter's Unmount having the changed behavior of not returning error when target is not a...

* Fix race condition introduced by graceful termination which can lead to a deadlock in kube-proxy ([#72361](https://github.com/kubernetes/kubernetes/pull/72361), [@lbernail](https://github.com/lbernail))

- Fixed a race condition that could result in erroneous volume unmounts for flex volume plugins during kubelet restart. ([#127669](https://github.com/kubernetes/kubernetes/pull/127669), [@olyazavr](https://github.com/olyazavr))

- Fix azure disk attach failure for disk size bigger than 4TB ([#95463](https://github.com/kubernetes/kubernetes/pull/95463), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]
- Fix azure disk data loss issue on Windows when unmount disk ([#95456](https://github.com/kubernetes/kubernetes/pull/95456), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]

   ([#122334](https://github.com/kubernetes/kubernetes/pull/122334), [@carlory](https://github.com/carlory))

* kubeadm reset correctly unmounts mount points inside /var/lib/kubelet ([#71663](https://github.com/kubernetes/kubernetes/pull/71663), [@bart0sh](https://github.com/bart0sh))

    // lowest respectively). If centerFloor is in allRequired, we will definitely find it. If not,
    // but centerFloor + 1 is, we'll definitely find that. The closest value to the true (unrounded)
    // center will be at either low or high.
    int low = requiredFrom;
    int high = requiredTo;
    while (high > low + 1) {
      int mid = (low + high) >>> 1;
      if (allRequired[mid] > centerFloor) {

- Fix azure disk data loss issue on Windows when unmount disk ([#95456](https://github.com/kubernetes/kubernetes/pull/95456), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider and Storage]

    * try to only update vm if detach a non-existing disk when got <200, error> after detach disk operation
* fix pod stuck issue due to corrupt mnt point in flexvol plugin, call Unmount if PathExists returns any error ([#75234](https://github.com/kubernetes/kubernetes/pull/75234), [@andyzhangx](https://github.com/andyzhangx))