linux-kernel - Re: [PATCH 1/1] x86: change default to spec_store_bypass_disable=prctl spectre_v2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <202110041214.564BF23@keescook>
Date:   Mon, 4 Oct 2021 12:14:31 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Andrea Arcangeli <aarcange@...hat.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        YiFei Zhu <zhuyifei1999@...il.com>,
        Linux Containers <containers@...ts.linux-foundation.org>,
        YiFei Zhu <yifeifz2@...inois.edu>, bpf <bpf@...r.kernel.org>,
        kernel list <linux-kernel@...r.kernel.org>,
        Aleksa Sarai <cyphar@...har.com>,
        Andy Lutomirski <luto@...capital.net>,
        David Laight <David.Laight@...lab.com>,
        Dimitrios Skarlatos <dskarlat@...cmu.edu>,
        Giuseppe Scrivano <gscrivan@...hat.com>,
        Hubertus Franke <frankeh@...ibm.com>,
        Jack Chen <jianyan2@...inois.edu>,
        Jann Horn <jannh@...gle.com>,
        Josep Torrellas <torrella@...inois.edu>,
        Tianyin Xu <tyxu@...inois.edu>,
        Tobin Feldman-Fitzthum <tobin@....com>,
        Tycho Andersen <tycho@...ho.pizza>,
        Valentin Rothberg <vrothber@...hat.com>,
        Will Drewry <wad@...omium.org>, Jiri Kosina <jikos@...nel.org>,
        Waiman Long <longman@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 1/1] x86: change default to
 spec_store_bypass_disable=prctl spectre_v2_user=prctl

On Mon, Oct 04, 2021 at 10:54:31AM -0700, Josh Poimboeuf wrote:
> On Sat, Sep 11, 2021 at 07:01:40PM -0700, Josh Poimboeuf wrote:
> > 
> > 
> > > On Sep 11, 2021, at 2:13 PM, Kees Cook <keescook@...omium.org> wrote:
> > > 
> > > On Wed, Nov 04, 2020 at 06:50:54PM -0500, Andrea Arcangeli wrote:
> > >> Switch the kernel default of SSBD and STIBP to the ones with
> > >> CONFIG_SECCOMP=n (i.e. spec_store_bypass_disable=prctl
> > >> spectre_v2_user=prctl) even if CONFIG_SECCOMP=y.
> > > 
> > > Hello x86 maintainers!
> > > 
> > > I'd really like to get this landed, so I'll take this via the
> > > seccomp-tree unless someone else speaks up. This keeps falling off
> > > the edge of my TODO list. :)
> > 
> > Thanks!  You can add my
> > 
> > Acked-by: Josh Poimboeuf <jpoimboe@...hat.com>
> 
> Hi Kees,
> 
> Ping - I don't see this patch in linux-next.  Are you planning on grabbing this
> for the next merge window?

Thanks for the reminder! I've pushed this to the seccomp next tree.

-- 
Kees Cook