linux-kernel - Re: [PATCH v2] wifi: p54: Annotate struct p54_cal_database with __counted

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Message-ID: <CAKf6xpvPgaSMA=oCMgXqoHWYfYt53_U1vAhvh1dX6HHytKjOwA@mail.gmail.com>
Date:   Mon, 9 Oct 2023 23:02:06 -0400
From:   Jason Andryuk <jandryuk@...il.com>
To:     Kees Cook <keescook@...omium.org>
Cc:     Christian Lamparter <chunkeey@...glemail.com>,
        Kalle Valo <kvalo@...nel.org>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-wireless@...r.kernel.org, linux-hardening@...r.kernel.org,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH v2] wifi: p54: Annotate struct p54_cal_database with __counted_by

On Mon, Oct 9, 2023 at 12:10 PM Kees Cook <keescook@...omium.org> 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 via CONFIG_UBSAN_BOUNDS (for
> array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family
> functions).
>
> Add __counted_by for struct p54_cal_database.
>
> Cc: Christian Lamparter <chunkeey@...glemail.com>
> Cc: Kalle Valo <kvalo@...nel.org>
> Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org>
> Cc: linux-wireless@...r.kernel.org
> Cc: linux-hardening@...r.kernel.org
> Suggested-by: Jason Andryuk <jandryuk@...il.com>
> Signed-off-by: Kees Cook <keescook@...omium.org>

Reviewed-by: Jason Andryuk <jandryuk@...il.com>

Thanks,
Jason