Re: [Libguestfs] [guestfs-tools PATCH 2/2] sysprep: advise against cloning VMs with internal full disk encryption

This is relevant for sysprep because we recommend sysprep for facilitating cloning. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2106286 Signed-off-by: Laszlo Ersek <lersek(a)redhat.com&gt; --- sysprep/virt-sysprep.pod | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/sysprep/virt-sysprep.pod b/sysprep/virt-sysprep.pod index deeb5341e57c..232b9f24ba27 100644 --- a/sysprep/virt-sysprep.pod +++ b/sysprep/virt-sysprep.pod @@ -519,6 +519,13 @@ Either or both options can be used multiple times on the command line. =head1 SECURITY +Virtual machines that employ full disk encryption I<internally to the +guest> should not be considered for cloning and distribution, as it +provides multiple parties with the same internal volume key, enabling +any one such party to decrypt all the other clones. Refer to the L<LUKS +FAQ|https://gitlab.com/cryptsetup/cryptsetup/-/blob/main/FAQ.md> for +details. + Although virt-sysprep removes some sensitive information from the guest, it does not pretend to remove all of it. You should examine the L</OPERATIONS> above and the guest afterwards. --