Re: [PATCH 1/2] gnttab: fully ignore zero-size copy requests

[Julien Grall <julien@xxxxxxx>]

Hi Jan,

On 05/02/2024 11:03, Jan Beulich wrote:
> Along the line with observations in the context of XSA-448, no field in
> struct gnttab_copy_ptr is relevant when no data is to be copied, much
> like e.g. the pointers passed to memcpy() are irrelevant (and would
> never be "validated") when the passed length is zero.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Reviewed-by: Julien Grall <jgrall@xxxxxxxxxx>

Cheers,

--
Julien Grall