linux-kernel - Re: [PATCH] rust_binder: add additional alignment checks

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Message-ID: <aXO6u8weGao9S-c5@google.com>
Date: Fri, 23 Jan 2026 18:15:23 +0000
From: Carlos Llamas <cmllamas@...gle.com>
To: Alice Ryhl <aliceryhl@...gle.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-kernel@...r.kernel.org, rust-for-linux@...r.kernel.org,
	stable@...r.kernel.org
Subject: Re: [PATCH] rust_binder: add additional alignment checks

On Fri, Jan 23, 2026 at 04:23:56PM +0000, Alice Ryhl wrote:
> This adds some alignment checks to match C Binder more closely. This
> causes the driver to reject more transactions. I don't think any of the
> transactions in question are harmful, but it's still a bug because it's
> the wrong uapi to accept them.
> 
> The cases where usize is changed for u64, it will affect only 32-bit
> kernels.
> 
> Cc: stable@...r.kernel.org
> Fixes: eafedbc7c050 ("rust_binder: add Rust Binder driver")
> Signed-off-by: Alice Ryhl <aliceryhl@...gle.com>
> ---

Acked-by: Carlos Llamas <cmllamas@...gle.com>