[Pkg-xen-devel] Bug#727100: Bug#727100: domain doesn't reboot with xl toolstack

[PÁSZTOR György]

Hi,

"Ian Campbell" <ijc at hellion.org.uk> írta 2013-10-22 11:17-kor:
> On Tue, 2013-10-22 at 11:52 +0200, PASZTOR Gyorgy wrote:
> > When you use xl toolstack, you can't reboot domUs.
> > When you switch back to xm toolstack, than reboot works again.
> > I think the problem with the debian packaged version is the same as in
> > this thread:
> > http://lists.xen.org/archives/html/xen-devel/2011-09/msg01289.html
> > I also think it's a security issue, since this is kind of a DoS from
> > the viewpoint of a domU.
> 
> The only people who can migrate a domain in any sensible deployment
> would be host administrator or maybe the VM admin. So there is no
> security aspect since they already more than privileged enough to simply
> destroy the domain if they wanted.

I didn't mention migrate, I wrote about reboot.
However if the domU's admin don't have host admin right's, just want to
reboot, then it'll fail, and his machine will remain shut down, until host
admin starts it again... What is this, if not a denial of a service?

PS.: I understand that 4.1/xl is just 'try and use if works' in Debian 7.0,
but if your patch works, I don't see a reason, why it couldn't applied, and
pushed through proposed-updates, and if a wider userbase tested it, it
could be incorporated into the next point release of Wheezy.

Cheers,
György