Re: [PATCH v2] xen/sched: fix sched_move_domain() for domain without vcpus

[Dario Faggioli <dfaggioli@xxxxxxxx>]

On Wed, 2021-09-08 at 15:04 +0200, Juergen Gross wrote:
> In case a domain is created with a cpupool other than Pool-0
> specified
> it will be moved to that cpupool before any vcpus are allocated.
> 
> This will lead to a NULL pointer dereference in sched_move_domain().
> 
> Fix that by tolerating vcpus not being allocated yet.
> 
> Fixes: 70fadc41635b9b6 ("xen/cpupool: support moving domain between
> cpupools with different granularity")
> Reported-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
> Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
>
Reviewed-by: Dario Faggioli <dfaggioli@xxxxxxxx>

Regards
-- 
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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