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

[Danilo Krummrich]

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? :)