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Subject: Re: [PATCH] wifi: ipw2x00: Annotate struct libipw_txb with
 __counted_by
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20230915200602.never.582-kees@kernel.org>
References: <20230915200602.never.582-kees@kernel.org>
To:     Kees Cook <keescook@chromium.org>
Cc:     Stanislav Yakovlev <stas.yakovlev@gmail.com>,
        Kees Cook <keescook@chromium.org>,
        linux-wireless@vger.kernel.org,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Tom Rix <trix@redhat.com>, linux-kernel@vger.kernel.org,
        llvm@lists.linux.dev, linux-hardening@vger.kernel.org
User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.11.2
Message-ID: <169527785383.1469888.6111719451945571724.kvalo@kernel.org>
Date:   Thu, 21 Sep 2023 06:30:55 +0000 (UTC)
Precedence: bulk

Kees Cook <keescook@chromium.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 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 libipw_txb.
> 
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
> 
> Cc: Stanislav Yakovlev <stas.yakovlev@gmail.com>
> Cc: Kalle Valo <kvalo@kernel.org>
> Cc: linux-wireless@vger.kernel.org
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Patch applied to wireless-next.git, thanks.

357be7ebba38 wifi: ipw2x00: Annotate struct libipw_txb with __counted_by

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