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Re: [XEN PATCH] XSM/domctl: Only pass properly initialized ssidref to xsm_domctl
- To: Teddy Astie <teddy.astie@xxxxxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Wed, 4 Dec 2024 11:40:19 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Wed, 04 Dec 2024 10:40:30 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 04.12.2024 11:17, Teddy Astie wrote:
> On XEN_DOMCTL_create_domain, we need to pass the ssidref parameter to
> xsm_domctl,
> currently, it is always passed regardless of what command we actually do
> (meaning
> that we are likely to pass garbage in !XEN_DOMCTL_create_domain).
>
> Pass ssidref from u.createdomain only for create_domain command, 0 otherwise.
> No functionnal change as ssidref parameter is ignored for
> non-XEN_DOMCTL_create_domain
> commands.
And then why is this change being made?
> Fixes: ee32b9b29af449d38aad0a1b3a81aaae586f5ea7 ("XSM/domctl: Fix permission
> checks on XEN_DOMCTL_createdomain")
Please limit the hash to 12 digits.
Jan
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