Re: [PATCH v2 55/63] HID: roccat: Use struct_group() to zero kone_mouse_event

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On Fri, Aug 20, 2021, 6:02 AM Jiri Kosina <jikos@xxxxxxxxxx> wrote:
On Tue, 17 Aug 2021, Kees Cook wrote:

> In preparation for FORTIFY_SOURCE performing compile-time and run-time
> field bounds checking for memset(), avoid intentionally writing across
> neighboring fields.
>
> Add struct_group() to mark region of struct kone_mouse_event that should
> be initialized to zero.
>
> Cc: Stefan Achatz <erazor_de@xxxxxxxxxxxxxxxxxxxxx>
> Cc: Jiri Kosina <jikos@xxxxxxxxxx>
> Cc: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> Cc: linux-input@xxxxxxxxxxxxxxx
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>

Applied, thank you Kees.

Eek! No, this will break the build: struct_group() is not yet in the tree. I can carry this with an Ack, etc.

-Kees

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