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SubjectRe: [PATCH RESEND v5 0/5] namei: vfs flags to restrict path resolution
On Mon, Mar 25, 2019 at 6:05 AM Aleksa Sarai <cyphar@cyphar.com> wrote:
>
> On 2019-03-21, Andy Lutomirski <luto@kernel.org> wrote:
> > On Wed, Mar 20, 2019 at 7:38 AM Aleksa Sarai <cyphar@cyphar.com> wrote:
> > > Now that the holiday break is over, it's time to re-send this patch
> > > series (with a few additions, due to new information we got from
> > > CVE-2019-5736 -- which this patchset mostly protected against but had
> > > some holes with regards to #!-style scripts).
> >
> > I generally like this, but, as Linus pointed out, it will be
> > unfortunate if application authors see this as just another
> > non-portable weird Linux API and don't use it. Would it be worthwhile
> > to put some thought into making it an API that other OSes might be
> > willing to implement? As it stands, the openat(2) flags are getting
> > rather crazy in this patch set.

I think many of the issues are specific to Linux (and Linux containers
especially), so I'm not sure this should get blocked because we want
something more portable.

This series provides solutions to so many different race and confusion
issues, I'd really like to see it land. What's the next step here? Is
this planned to go directly to Linus for v5.2, or is it going to live
in -mm for a while? I'd really like to see this moving forward.

Thanks for continuing to work on it!

-Kees

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