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Date: Tue, 24 Oct 2023 14:18:56 -0700
From: Kees Cook <>
To: Amit Shah <>,
	Kees Cook <>
Cc: Arnd Bergmann <>,
	Greg Kroah-Hartman <>,,
	Nathan Chancellor <>,
	Nick Desaulniers <>,
	Tom Rix <>,,,
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

Take care,

Kees Cook

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