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Message-ID: <ZR+fcY+W5CBODmfX@gauss3.secunet.de>
Date: Fri, 6 Oct 2023 07:47:29 +0200
From: Steffen Klassert <steffen.klassert@...unet.com>
To: Kees Cook <keescook@...omium.org>
CC: Herbert Xu <herbert@...dor.apana.org.au>, "David S. Miller"
	<davem@...emloft.net>, <netdev@...r.kernel.org>, "Gustavo A. R. Silva"
	<gustavoars@...nel.org>, Nathan Chancellor <nathan@...nel.org>, "Nick
 Desaulniers" <ndesaulniers@...gle.com>, Tom Rix <trix@...hat.com>,
	<linux-kernel@...r.kernel.org>, <linux-hardening@...r.kernel.org>,
	<llvm@...ts.linux.dev>
Subject: Re: [PATCH] xfrm: Annotate struct xfrm_sec_ctx with __counted_by

On Tue, Oct 03, 2023 at 04:18:28PM -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 xfrm_sec_ctx.
> 
> Cc: Steffen Klassert <steffen.klassert@...unet.com>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: netdev@...r.kernel.org
> Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1]
> Signed-off-by: Kees Cook <keescook@...omium.org>

Applied to ipsec-next, thanks!

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