linux-kernel - Re: [PATCH v1] rust: cfi: only 64-bit arm and x86 support CFI

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <71b9ca7a-3847-72d9-b9d1-c748f301450f@kernel.org>
Date: Fri, 3 Oct 2025 16:57:22 -0600 (MDT)
From: Paul Walmsley <pjw@...nel.org>
To: Conor Dooley <conor@...nel.org>
cc: Miguel Ojeda <miguel.ojeda.sandonis@...il.com>, 
    linux-kernel@...r.kernel.org, Conor Dooley <conor.dooley@...rochip.com>, 
    stable@...r.kernel.org, Paul Walmsley <paul.walmsley@...ive.com>, 
    Palmer Dabbelt <palmer@...belt.com>, Alexandre Ghiti <alex@...ti.fr>, 
    Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
    Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>, 
    Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
    Benno Lossin <lossin@...nel.org>, Andreas Hindborg <a.hindborg@...nel.org>, 
    Alice Ryhl <aliceryhl@...gle.com>, Trevor Gross <tmgross@...ch.edu>, 
    Danilo Krummrich <dakr@...nel.org>, Kees Cook <kees@...nel.org>, 
    Sami Tolvanen <samitolvanen@...gle.com>, 
    Matthew Maurer <mmaurer@...gle.com>, 
    "Peter Zijlstra (Intel)" <peterz@...radead.org>, 
    linux-riscv@...ts.infradead.org, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v1] rust: cfi: only 64-bit arm and x86 support
 CFI_CLANG

On Fri, 3 Oct 2025, Conor Dooley wrote:

> On Mon, Sep 08, 2025 at 04:36:09PM +0200, Miguel Ojeda wrote:
> > On Mon, Sep 8, 2025 at 3:13 PM Conor Dooley <conor@...nel.org> wrote:
> > >
> > > From: Conor Dooley <conor.dooley@...rochip.com>
> > >
> > > The kernel uses the standard rustc targets for non-x86 targets, and out
> > > of those only 64-bit arm's target has kcfi support enabled. For x86, the
> > > custom 64-bit target enables kcfi.
> 
> Hopefully someone can take it! I was hoping it'd be 6.18 material, can
> someone grab it for fixes please?

Will pick it up for early v6.18-rc fixes, thanks.


- Paul