linux-hardening - Re: [PATCH] wifi: mt76: Annotate struct mt76_rx_tid with __counted

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Date: Sat, 07 Oct 2023 06:45:52 +0300
From: Kalle Valo <kvalo@...nel.org>
To: Kees Cook <keescook@...omium.org>
Cc: Felix Fietkau <nbd@....name>,  Lorenzo Bianconi <lorenzo@...nel.org>,
  Ryder Lee <ryder.lee@...iatek.com>,  Shayne Chen
 <shayne.chen@...iatek.com>,  Sean Wang <sean.wang@...iatek.com>,  Matthias
 Brugger <matthias.bgg@...il.com>,  AngeloGioacchino Del Regno
 <angelogioacchino.delregno@...labora.com>,
  linux-wireless@...r.kernel.org,  linux-arm-kernel@...ts.infradead.org,
  linux-mediatek@...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] wifi: mt76: Annotate struct mt76_rx_tid with __counted_by

Kees Cook <keescook@...omium.org> writes:

> On Fri, Sep 15, 2023 at 01:06:12PM -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 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 mt76_rx_tid.
>
> Friendly ping. Can this get picked up by the wifi tree, or should it go
> via something else?

It's already in mt76 pull request and should be in wireless-next next
week:

https://patchwork.kernel.org/project/linux-wireless/patch/a5a2baaa-0db4-403e-9ebd-a7ff089675b4@nbd.name/

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

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