Re: [PATCH] module: Annotate struct module_notes_attrs with __counted_by

From: Luis Chamberlain
Date: Fri Sep 22 2023 - 17:58:02 EST


On Fri, Sep 22, 2023 at 10:52:53AM -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 module_notes_attrs.
>
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
>
> Cc: Luis Chamberlain <mcgrof@xxxxxxxxxx>
> Cc: linux-modules@xxxxxxxxxxxxxxx
> Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>

Thanks, applied and pushed!

Luis