linux-kernel - Re: [PATCH] x86/Kconfig: make CFI_AUTO

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Message-ID: <CANiq72neZj+ESvkxwXAQFnznwYBiQAcpW4OqXg1ckhxZj3fd4Q@mail.gmail.com>
Date: Thu, 10 Apr 2025 15:54:32 +0200
From: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>
To: Peter Zijlstra <peterz@...radead.org>
Cc: Paweł Anikiel <panikiel@...gle.com>, 
	Sami Tolvanen <samitolvanen@...gle.com>, Kees Cook <kees@...nel.org>, 
	Alex Gaynor <alex.gaynor@...il.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, Ingo Molnar <mingo@...hat.com>, 
	Josh Poimboeuf <jpoimboe@...nel.org>, Masahiro Yamada <masahiroy@...nel.org>, 
	Miguel Ojeda <ojeda@...nel.org>, Thomas Gleixner <tglx@...utronix.de>, Alice Ryhl <aliceryhl@...gle.com>, 
	Nathan Chancellor <nathan@...nel.org>, x86@...nel.org, linux-kernel@...r.kernel.org, 
	rust-for-linux@...r.kernel.org
Subject: Re: [PATCH] x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST

On Thu, Apr 10, 2025 at 3:34 PM Peter Zijlstra <peterz@...radead.org> wrote:
>
> Anyway, given this core nonsense is now CFI unsound, it is no longer
> suitable to build the kernel. So either refrain from using part of the
> core that trips this, or get it fixed asap.

We discussed it a bit yesterday. Still, until it gets resolved one way
or another, we should be avoiding people to build the kernel like
that, no?

Cheers,
Miguel