linux-hardening - Re: [PATCH] pinctrl: samsung: Annotate struct exynos_muxed_weint_data with __counted

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Message-Id: <169676506007.13281.4277310481310428464.b4-ty@linaro.org>
Date: Sun,  8 Oct 2023 13:37:45 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Tomasz Figa <tomasz.figa@...il.com>,
	Kees Cook <keescook@...omium.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Linus Walleij <linus.walleij@...aro.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	linux-gpio@...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] pinctrl: samsung: Annotate struct exynos_muxed_weint_data with __counted_by


On Fri, 06 Oct 2023 13:17:07 -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 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
> exynos_muxed_weint_data. Additionally, since the element count member
> must be set before accessing the annotated flexible array member, move
> its initialization earlier.
> 
> [...]

Applied, thanks!

[1/1] pinctrl: samsung: Annotate struct exynos_muxed_weint_data with __counted_by
      https://git.kernel.org/pinctrl/samsung/c/4e1e21117e7e1275477ba80e634c769a511249bd

Best regards,
-- 
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>