[PATCH v3 0/3] virtio_balloon: don't push uninitialized buffers to stats virtqueue

[Ladi Prosek <lprosek@redhat.com>]

This series fixes issues with variable initialization in the virtio
balloon driver which manifest as the driver sending invalid memory
stats to the host.

v1->v2:

* Call update_balloon_stats instead of filling the buffer with
  invalid tags.
* Add BUG_ON to update_balloon_stats to formalize the invariant that
  all slots in the buffer must be initialized.

v2->v3:

* Remove BUG_ON and return the actual number of counters from
  update_balloon_stats instead.
* Added Arnd's patch to omit VM stats if CONFIG_VM_EVENT_COUNTERS
  is not defined.


Arnd Bergmann (1):
      virtio_balloon: prevent uninitialized variable use

Ladi Prosek (2):
      virtio_balloon: don't push uninitialized buffers to stats virtqueue
      virtio-balloon: use actual number of stats for stats queue buffers

 drivers/virtio/virtio_balloon.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

Thanks!
Ladi