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Subject: Re: [PATCH] wifi: brcmfmac: Annotate struct brcmf_gscan_config with
 __counted_by
From:   Kalle Valo <kvalo@kernel.org>
In-Reply-To: <20230915200542.never.417-kees@kernel.org>
References: <20230915200542.never.417-kees@kernel.org>
To:     Kees Cook <keescook@chromium.org>
Cc:     Arend van Spriel <aspriel@gmail.com>,
        Kees Cook <keescook@chromium.org>,
        Franky Lin <franky.lin@broadcom.com>,
        Hante Meuleman <hante.meuleman@broadcom.com>,
        "Gustavo A. R. Silva" <gustavoars@kernel.org>,
        Hector Martin <marcan@marcan.st>,
        Ryohei Kondo <ryohei.kondo@cypress.com>,
        Hans de Goede <hdegoede@redhat.com>,
        linux-wireless@vger.kernel.org,
        brcm80211-dev-list.pdl@broadcom.com,
        SHA-cyfmac-dev-list@infineon.com,
        Nathan Chancellor <nathan@kernel.org>,
        Nick Desaulniers <ndesaulniers@google.com>,
        Tom Rix <trix@redhat.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        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: <169520846255.991705.4120611293307630241.kvalo@kernel.org>
Date:   Wed, 20 Sep 2023 11:14:24 +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 brcmf_gscan_config.
> 
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
> 
> Cc: Arend van Spriel <aspriel@gmail.com>
> Cc: Franky Lin <franky.lin@broadcom.com>
> Cc: Hante Meuleman <hante.meuleman@broadcom.com>
> Cc: Kalle Valo <kvalo@kernel.org>
> Cc: "Gustavo A. R. Silva" <gustavoars@kernel.org>
> Cc: Hector Martin <marcan@marcan.st>
> Cc: Ryohei Kondo <ryohei.kondo@cypress.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
> Cc: linux-wireless@vger.kernel.org
> Cc: brcm80211-dev-list.pdl@broadcom.com
> Cc: SHA-cyfmac-dev-list@infineon.com
> Signed-off-by: Kees Cook <keescook@chromium.org>
> Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>

Patch applied to wireless-next.git, thanks.

cf74cdc6e581 wifi: brcmfmac: Annotate struct brcmf_gscan_config with __counted_by

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230915200542.never.417-kees@kernel.org/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches