linux-hardening - Re: [PATCH] mtd: rawnand: rockchip: Use struct

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Message-ID: <3186469.5fSG56mABF@phil>
Date: Mon, 09 Oct 2023 22:18:49 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>,
 Kees Cook <keescook@...omium.org>,
 "Gustavo A. R. Silva" <gustavoars@...nel.org>,
 Nathan Chancellor <nathan@...nel.org>,
 Nick Desaulniers <ndesaulniers@...gle.com>, Tom Rix <trix@...hat.com>,
 Christophe JAILLET <christophe.jaillet@...adoo.fr>
Cc: linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
 Christophe JAILLET <christophe.jaillet@...adoo.fr>,
 linux-mtd@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-hardening@...r.kernel.org,
 llvm@...ts.linux.dev
Subject: Re: [PATCH] mtd: rawnand: rockchip: Use struct_size()

Am Sonntag, 1. Oktober 2023, 09:44:04 CEST schrieb Christophe JAILLET:
> Use struct_size() instead of hand writing it.
> This is less verbose and more robust.
> 
> While at it, 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).
> 
> Also remove a useless comment about the position of a flex-array in a
> structure.
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>

Acked-by: Heiko Stuebner <heiko@...ech.de>