Re: [PATCH] reset: Annotate struct reset_control_array with __counted_by

From: Kees Cook
Date: Tue Oct 24 2023 - 17:19:25 EST


On Fri, 22 Sep 2023 10:52:29 -0700, Kees Cook wrote:
> Prepare for the coming implementation by GCC and Clang of the __counted_by
> attribute. Flexible array members annotated with __counted_by can have
> their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS
> (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
> functions).
>
> As found with Coccinelle[1], add __counted_by for struct reset_control_array.
> Additionally, since the element count member must be set before accessing
> the annotated flexible array member, move its initialization earlier.
>
> [...]

Applied to for-next/hardening, thanks!

[1/1] reset: Annotate struct reset_control_array with __counted_by
https://git.kernel.org/kees/c/fed2ef7abaeb

Take care,

--
Kees Cook