linux-hardening - Re: [PATCH] wifi: ath10k: Annotate struct ath10k_ce_ring with __counted

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Date: Thu, 21 Sep 2023 08:10:24 +0000 (UTC)
From: Kalle Valo <kvalo@...nel.org>
To: Kees Cook <keescook@...omium.org>
Cc: Kees Cook <keescook@...omium.org>,
 Jeff Johnson <quic_jjohnson@...cinc.com>, ath10k@...ts.infradead.org,
 linux-wireless@...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,
 linux-hardening@...r.kernel.org
Subject: Re: [PATCH] wifi: ath10k: Annotate struct ath10k_ce_ring with
 __counted_by

Kees Cook <keescook@...omium.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 ath10k_ce_ring.
> 
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
> 
> Cc: Kalle Valo <kvalo@...nel.org>
> Cc: Jeff Johnson <quic_jjohnson@...cinc.com>
> Cc: ath10k@...ts.infradead.org
> Cc: linux-wireless@...r.kernel.org
> Signed-off-by: Kees Cook <keescook@...omium.org>
> Acked-by: Jeff Johnson <quic_jjohnson@...cinc.com>
> Reviewed-by: Gustavo A. R. Silva <gustavoars@...nel.org>
> Signed-off-by: Kalle Valo <quic_kvalo@...cinc.com>

Patch applied to ath-next branch of ath.git, thanks.

3f856f29551f wifi: ath10k: Annotate struct ath10k_ce_ring with __counted_by

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20230915200636.never.762-kees@kernel.org/

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