[kernel-hardening] Re: [PATCH v9 1/4] syscalls: Verify address limit before returning to user-mode

[Christoph Hellwig]

On Tue, May 09, 2017 at 06:00:01AM -0700, Andy Lutomirski wrote:
> fs/splice.c has some, ahem, interesting uses that have been the source
> of nasty exploits in the past.  Converting them to use iov_iter
> properly would be really, really nice.  Christoph, I don't suppose
> you'd like to do that?

I can take care of all the fs code including this one.