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+++ This bug was initially created as a clone of Bug #1129892 +++
Via Bug 1004420, we introduced a few "qcow2 corruption prevention" patches.
But there are some recent upstream follow-ups that apparently should be included as well. This BZ is to track it and analyse which of these fixes should be backported.
Right now I see the following two series:
Date: Thu, 7 Aug 2014 22:47:52 +0200
From: Max Reitz <mreitz>
Subject: [Qemu-devel] [PATCH 0/3] qcow2: Prevent corruption-related crashes
Max Reitz (3):
qcow2: Catch !*host_offset for data allocation
iotests: Add test for image header overlap
block: Catch !bs->drv in bdrv_check()
AND
Date: Wed, 13 Aug 2014 23:01:42 +0200
From: Max Reitz <mreitz>
Subject: [Qemu-devel] [PATCH 0/8] qcow2: Fix image repairing
Max Reitz (8):
qcow2: Factor out refcount accounting for check
qcow2: Factor out refcount comparison for check
qcow2: Fix refcount blocks beyond image end
qcow2: Do not perform potentially damaging repairs
qcow2: Rebuild refcount structure during check
qcow2: Clean up after refcount rebuild
iotests: Fix test outputs
iotests: Add test for potentially damaging repairs
Comment 2Miroslav Rezanina
2015-06-26 05:53:19 UTC
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHBA-2015-2213.html