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Message-ID: <ZRcLfYW0prCLXlJ4@gcabiddu-mobl1.ger.corp.intel.com>
Date:   Fri, 29 Sep 2023 18:38:05 +0100
From:   Giovanni Cabiddu <giovanni.cabiddu@...el.com>
To:     Kees Cook <keescook@...omium.org>
CC:     Herbert Xu <herbert@...dor.apana.org.au>,
        "David S. Miller" <davem@...emloft.net>,
        Nathan Chancellor <nathan@...nel.org>,
        "Nick Desaulniers" <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        "Adam Guerin" <adam.guerin@...el.com>,
        Lucas Segarra Fernandez <lucas.segarra.fernandez@...el.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        <qat-linux@...el.com>, <linux-crypto@...r.kernel.org>,
        <llvm@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        <linux-hardening@...r.kernel.org>
Subject: Re: [PATCH] crypto: qat: Annotate struct adf_fw_counters with
 __counted_by

On Fri, Sep 22, 2023 at 10:54:33AM -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 adf_fw_counters.
> 
> [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
> 
> Cc: Giovanni Cabiddu <giovanni.cabiddu@...el.com>
> Cc: Herbert Xu <herbert@...dor.apana.org.au>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Nathan Chancellor <nathan@...nel.org>
> Cc: Nick Desaulniers <ndesaulniers@...gle.com>
> Cc: Tom Rix <trix@...hat.com>
> Cc: Adam Guerin <adam.guerin@...el.com>
> Cc: Lucas Segarra Fernandez <lucas.segarra.fernandez@...el.com>
> Cc: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> Cc: qat-linux@...el.com
> Cc: linux-crypto@...r.kernel.org
> Cc: llvm@...ts.linux.dev
> Signed-off-by: Kees Cook <keescook@...omium.org>
Acked-by: Giovanni Cabiddu <giovanni.cabiddu@...el.com>

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