Comment 63 for bug 1548450

Reviewed: https://review.openstack.org/289957
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=116b1210ab772c55d1ed1f715687d83877c92701
Submitter: Jenkins
Branch: master

commit 116b1210ab772c55d1ed1f715687d83877c92701
Author: Lee Yarwood <email address hidden>
Date: Wed Feb 24 11:23:22 2016 +0000

    libvirt: Always copy or recreate disk.info during a migration

    The disk.info file contains the path and format of any image, config or
    ephermal disk associated with an instance. When using RAW images and migrating
    an instance this file should always be copied or recreated. This avoids the Raw
    imagebackend reinspecting the format of these disks when spawning the instance
    on the destination host.

    By not copying or recreating this disk.info file, a malicious image written to
    an instance disk on the source host will cause Nova to reinspect and record a
    different format for the disk on the destination. This format then being used
    incorrectly when finally spawning the instance on the destination.

    SecurityImpact
    Closes-bug: #1548450
    Change-Id: Idfc16f54049aaeab31ac1c1d8d79a129acc9fb87