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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@redhat.com> 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@redhat.com> 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
Fix included in qemu-kvm-1.5.3-94.el7
According to comment4, set this issue as verified.
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