Messages in this thread | | | Subject | Re: [PATCH v2] x86/xen: allow userspace access during hypercalls | From | Juergen Groß <> | Date | Mon, 26 Jun 2017 14:54:07 +0200 |
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On 06/26/2017 02:49 PM, Marek Marczykowski-Górecki wrote: > Userspace application can do a hypercall through /dev/xen/privcmd, and > some for some hypercalls argument is a pointers to user-provided > structure. When SMAP is supported and enabled, hypervisor can't access. > So, lets allow it. > > The same applies to HYPERVISOR_dm_op, where additionally privcmd driver > carefully verify buffer addresses. > > Cc: stable@vger.kernel.org > Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Thanks,
Juergen
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