Since v2:
- new patch 2, spec changes based on list followup
- tweak patch 3 to use MIN() and stop open-coding a calculation [Berto]
- tweak patch 4 to stop overallocating by a sector [Berto]

Eric Blake (4):
  qcow2: Prefer byte-based calls into bs->file
  qcow2: Document some maximum size constraints
  qcow2: Don't allow overflow during cluster allocation
  qcow2: Avoid memory over-allocation on compressed images

 docs/interop/qcow2.txt | 29 ++++++++++++++++++++++++++---
 block/qcow2.h          |  6 ++++++
 block/qcow2-cluster.c  | 32 ++++++++++++++++++++------------
 block/qcow2-refcount.c | 27 +++++++++++++++++----------
 block/qcow2.c          |  2 +-
 5 files changed, 70 insertions(+), 26 deletions(-)

-- 
2.14.3