[Qemu-block] [PATCH 0/4] Misc qcow2 corruption checks

[Alberto Garcia]

Misc qcow2 corruption checks

This series contains a few checks that prevent QEMU from crashing
under some scenarios with corrupted qcow2 images.

The first patch solves the crash reported here:

  https://bugs.launchpad.net/qemu/+bug/1728615

And the others solve similar crashes that I detected in the process of
fixing this one.

Regards,

Berto

Alberto Garcia (4):
  qcow2: Prevent allocating refcount blocks at offset 0
  qcow2: Prevent allocating L2 tables at offset 0
  qcow2: Don't open images with header.refcount_table_clusters == 0
  qcow2: Add iotest for an empty refcount table

 block/qcow2-cluster.c      |  7 +++++++
 block/qcow2-refcount.c     |  7 +++++++
 block/qcow2.c              |  6 ++++++
 tests/qemu-iotests/060     | 32 ++++++++++++++++++++++++++++++++
 tests/qemu-iotests/060.out | 25 +++++++++++++++++++++++++
 5 files changed, 77 insertions(+)

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2.11.0