linux-kernel - Re: [PATCH 0/3] ABI CHANGE!!! Remove questionable remote SP reads

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Message-ID: <CA+55aFzo0xpbxbajpgcfyYoLyKihCiyMfgc+yCJ+b9ohw6wycQ@mail.gmail.com>
Date:   Mon, 3 Oct 2016 16:17:49 -0700
From:   Linus Torvalds <torvalds@...ux-foundation.org>
To:     Andy Lutomirski <luto@...capital.net>
Cc:     Andy Lutomirski <luto@...nel.org>, X86 ML <x86@...nel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Brian Gerst <brgerst@...il.com>,
        Borislav Petkov <bp@...en8.de>, Jann Horn <jann@...jh.net>,
        Linux API <linux-api@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>,
        Tycho Andersen <tycho.andersen@...onical.com>
Subject: Re: [PATCH 0/3] ABI CHANGE!!! Remove questionable remote SP reads

On Mon, Oct 3, 2016 at 4:08 PM, Andy Lutomirski <luto@...capital.net> wrote:
>
> Ping!
>
> We need to decide fairly soon whether to apply these (or perhaps just
> patch 1 or just patches 2 and 3) for 4.9.  For any parts that aren't
> applied, I'll send quick fixups to pin the stack in the offending
> code.

I think we should apply it. Hopefully nothing uses it, and nobody will
notice. And if somebody *does* notice, the sooner we find out, the
better.

             Linus