On Mon, Feb 23, 2015 at 11:52:29AM +0100, Raphael Glon wrote:
> On 02/23/2015 11:23 AM, Daniel P. Berrange wrote:
> >The alternative Nova implementation is*not*  using fuse, it is using real
> >mounts on the host FS. This is not a potential issue, it is an*actual*
> >issue. There have been bugs in Linux filesystem drivers, including ext4,
> >that would have allowed a malicous kernel image to crash and/or exploit
> >the host kernel if mounted.
> >
> >   http://libguestfs.org/guestfs.3.html#security-of-mounting-filesystems
> 
> Ok noted -> so why is losetup or qemu-nbd still proposed by nova and still
> the default method ?

Libguestfs method takes priority if it is installed on the host, but
the legacy code still exists for benefit of existing deployed setups
and drivers which don't have qemu/kvm available, eg LXC containers.

Regards,
Daniel
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