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Message-ID: <202408061230.82BE3CEFA7@keescook>
Date: Tue, 6 Aug 2024 12:31:29 -0700
From: Kees Cook <kees@...nel.org>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: Masahiro Yamada <masahiroy@...nel.org>,
	Nathan Chancellor <nathan@...nel.org>,
	Nicolas Schier <nicolas@...sle.eu>,
	Sami Tolvanen <samitolvanen@...gle.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Miguel Ojeda <ojeda@...nel.org>,
	Alex Gaynor <alex.gaynor@...il.com>,
	Wedson Almeida Filho <wedsonaf@...il.com>,
	Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
	Björn Roy Baron <bjorn3_gh@...tonmail.com>,
	Benno Lossin <benno.lossin@...ton.me>,
	Andreas Hindborg <a.hindborg@...sung.com>,
	Matthew Maurer <mmaurer@...gle.com>, linux-kbuild@...r.kernel.org,
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2 0/2] Rust KCFI support

On Thu, Aug 01, 2024 at 01:35:16PM +0000, Alice Ryhl wrote:
> The control flow integrity (kCFI) sanitizer is an important sanitizer
> that is often used in production. This patch series makes it possible to
> use kCFI and Rust together.
> 
> The second patch in this series depends on the next version of [1],
> which Miguel will send soon. It also depends on [2].
> 
> Link: https://lore.kernel.org/r/20240709160615.998336-12-ojeda@kernel.org [1]
> Link: https://lore.kernel.org/r/20240730-target-json-arrays-v1-1-2b376fd0ecf4@google.com [2]
> Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
> ---
> Changes in v2:
> - Fix for FineIBT.
> - Add more info to commit messages and config descrptions.
> - Link to v1: https://lore.kernel.org/r/20240730-kcfi-v1-0-bbb948752a30@google.com
> 
> ---
> Alice Ryhl (1):
>       cfi: add CONFIG_CFI_ICALL_NORMALIZE_INTEGERS
> 
> Matthew Maurer (1):
>       rust: cfi: add support for CFI_CLANG with Rust
> 
>  Makefile                        | 10 ++++++++++
>  arch/Kconfig                    | 16 ++++++++++++++++
>  arch/x86/Makefile               |  4 ++++
>  init/Kconfig                    |  4 +++-
>  rust/Makefile                   |  2 +-
>  scripts/generate_rust_target.rs |  1 +
>  6 files changed, 35 insertions(+), 2 deletions(-)

This is great to have! I assume this will go via the Rust tree, so:

Acked-by: Kees Cook <kees@...nel.org>

-- 
Kees Cook

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