Re: [PATCH v2 4/4] rust: devres: implement register_release()

Danilo Krummrich
2025-06-23T12:52:03Z

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 (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? :)