From: Danilo Krummrich <dakr@kernel.org>
To: Alice Ryhl <aliceryhl@google.com>
Cc: gregkh@linuxfoundation.org, rafael@kernel.org, ojeda@kernel.org,
alex.gaynor@gmail.com, boqun.feng@gmail.com, gary@garyguo.net,
bjorn3_gh@protonmail.com, lossin@kernel.org,
a.hindborg@kernel.org, tmgross@umich.edu,
david.m.ertman@intel.com, ira.weiny@intel.com, leon@kernel.org,
kwilczynski@kernel.org, bhelgaas@google.com,
rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org
Subject: Re: [PATCH v2 4/4] rust: devres: implement register_release()
Date: Mon, 23 Jun 2025 14:51:57 +0200 [thread overview]
Message-ID: <aFlN7W5rMRcmE300@cassiopeiae> (raw)
In-Reply-To: <aFlCCsvXCSJeYaFQ@google.com>
On Mon, Jun 23, 2025 at 12:01:14PM +0000, Alice Ryhl wrote:
> On Sun, Jun 22, 2025 at 06:40:41PM +0200, Danilo Krummrich wrote:
> > +pub fn register_release<P>(dev: &Device<Bound>, data: P) -> Result
> > +where
> > + P: ForeignOwnable,
> > + for<'a> P::Borrowed<'a>: Release,
>
> I think we need where P: ForeignOwnable + 'static too.
>
> otherwise I can pass something with a reference that expires before the
> device is unbound and access it in the devm callback as a UAF.
I can't really come up with an example for such a case, mind providing one? :)
next prev parent reply other threads:[~2025-06-23 12:52 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-06-22 16:40 [PATCH v2 0/4] Improvements for Devres Danilo Krummrich
2025-06-22 16:40 ` [PATCH v2 1/4] rust: revocable: support fallible PinInit types Danilo Krummrich
2025-06-22 20:23 ` Benno Lossin
2025-06-22 20:30 ` Miguel Ojeda
2025-06-23 11:53 ` Alice Ryhl
2025-06-22 16:40 ` [PATCH v2 2/4] rust: devres: replace Devres::new_foreign_owned() Danilo Krummrich
2025-06-22 20:25 ` Benno Lossin
2025-06-23 11:56 ` Alice Ryhl
2025-06-23 12:41 ` Danilo Krummrich
2025-06-22 16:40 ` [PATCH v2 3/4] rust: devres: get rid of Devres' inner Arc Danilo Krummrich
2025-06-22 20:45 ` Benno Lossin
2025-06-22 21:09 ` Danilo Krummrich
2025-06-23 1:54 ` Boqun Feng
2025-06-24 15:18 ` Danilo Krummrich
2025-06-24 15:46 ` Boqun Feng
2025-06-24 16:15 ` Danilo Krummrich
2025-06-24 16:20 ` Danilo Krummrich
2025-06-24 16:37 ` Boqun Feng
2025-06-22 16:40 ` [PATCH v2 4/4] rust: devres: implement register_release() Danilo Krummrich
2025-06-22 20:47 ` Benno Lossin
2025-06-22 21:12 ` Danilo Krummrich
2025-06-22 21:20 ` Benno Lossin
2025-06-22 21:24 ` Danilo Krummrich
2025-06-22 22:29 ` Benno Lossin
2025-06-23 12:01 ` Alice Ryhl
2025-06-23 12:51 ` Danilo Krummrich [this message]
2025-06-23 13:40 ` Benno Lossin
2025-06-23 13:49 ` Danilo Krummrich
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