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Message-Id: <169818232963.2100071.8744701530771099437.b4-ty@chromium.org>
Date:   Tue, 24 Oct 2023 14:18:56 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Amit Shah <amit@...nel.org>, Kees Cook <keescook@...omium.org>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        virtualization@...ts.linux-foundation.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] virtio_console: Annotate struct port_buffer with __counted_by

On Fri, 22 Sep 2023 10:51:15 -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 port_buffer.
> 
> [...]

Applied to for-next/hardening, thanks!

[1/1] virtio_console: Annotate struct port_buffer with __counted_by
      https://git.kernel.org/kees/c/bf5abc17bc43

Take care,

-- 
Kees Cook

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