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Re: [Qemu-block] [PATCH 7/7] qcow2: Make qemu-img check detect corrupted

From: Eric Blake
Subject: Re: [Qemu-block] [PATCH 7/7] qcow2: Make qemu-img check detect corrupted L1 tables in snapshots
Date: Thu, 1 Mar 2018 19:37:10 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0

On 03/01/2018 10:27 AM, Alberto Garcia wrote:
'qemu-img check' cannot detect if a snapshot's L1 table is corrupted.
This patch checks the table's offset and size and reports corruption
if the values are not valid.

This patch doesn't add code to fix that corruption yet, only to detect
and report it.

Signed-off-by: Alberto Garcia <address@hidden>
  block/qcow2-refcount.c     | 14 ++++++++++++++
  tests/qemu-iotests/080     |  2 ++
  tests/qemu-iotests/080.out | 20 ++++++++++++++++++++
  3 files changed, 36 insertions(+)

Reviewed-by: Eric Blake <address@hidden>

Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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