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Message-Id: <20230922145148.578528-1-miquel.raynal@bootlin.com>
Date: Fri, 22 Sep 2023 16:51:48 +0200
From: Miquel Raynal <miquel.raynal@...tlin.com>
To: Kees Cook <keescook@...omium.org>,
	Miquel Raynal <miquel.raynal@...tlin.com>
Cc: Richard Weinberger <richard@....at>,
	Vignesh Raghavendra <vigneshr@...com>,
	linux-mtd@...ts.infradead.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,
	linux-hardening@...r.kernel.org
Subject: Re: [PATCH] mtd: rawnand: denali: Annotate struct denali_chip with __counted_by

On Fri, 2023-09-15 at 20:12:28 UTC, 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 denali_chip.
> 
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
> 
> Cc: Miquel Raynal <miquel.raynal@...tlin.com>
> Cc: Richard Weinberger <richard@....at>
> Cc: Vignesh Raghavendra <vigneshr@...com>
> Cc: linux-mtd@...ts.infradead.org
> Signed-off-by: Kees Cook <keescook@...omium.org>
> Reviewed-by: Gustavo A. R. Silva <gustavoars@...nel.org>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/next, thanks.

Miquel

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