Date:   Tue, 24 Jan 2023 11:38:05 -0800
From:   Eric Biggers <ebiggers@kernel.org>
To:     Kees Cook <keescook@chromium.org>
Cc:     Seth Jenkins <sethjenkins@google.com>,
        SeongJae Park <sj@kernel.org>, Jann Horn <jannh@google.com>,
        Luis Chamberlain <mcgrof@kernel.org>,
        Greg KH <gregkh@linuxfoundation.org>,
        Linus Torvalds <torvalds@linuxfoundation.org>,
        Andy Lutomirski <luto@kernel.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        tangmeng <tangmeng@uniontech.com>,
        "Guilherme G. Piccoli" <gpiccoli@igalia.com>,
        Tiezhu Yang <yangtiezhu@loongson.cn>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        "Eric W. Biederman" <ebiederm@xmission.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Dmitry Vyukov <dvyukov@google.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Juri Lelli <juri.lelli@redhat.com>,
        Vincent Guittot <vincent.guittot@linaro.org>,
        Dietmar Eggemann <dietmar.eggemann@arm.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Ben Segall <bsegall@google.com>,
        Daniel Bristot de Oliveira <bristot@redhat.com>,
        Valentin Schneider <vschneid@redhat.com>,
        Andrey Ryabinin <ryabinin.a.a@gmail.com>,
        Alexander Potapenko <glider@google.com>,
        Andrey Konovalov <andreyknvl@gmail.com>,
        Vincenzo Frascino <vincenzo.frascino@arm.com>,
        David Gow <davidgow@google.com>,
        "Paul E. McKenney" <paulmck@kernel.org>,
        Jonathan Corbet <corbet@lwn.net>,
        Baolin Wang <baolin.wang@linux.alibaba.com>,
        "Jason A. Donenfeld" <Jason@zx2c4.com>,
        Huang Ying <ying.huang@intel.com>,
        Anton Vorontsov <anton@enomsg.org>,
        Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
        Laurent Dufour <ldufour@linux.ibm.com>,
        Rob Herring <robh@kernel.org>, linux-kernel@vger.kernel.org,
        kasan-dev@googlegroups.com, linux-mm@kvack.org,
        linux-doc@vger.kernel.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH v3 2/6] exit: Put an upper limit on how often we can oops
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On Tue, Jan 24, 2023 at 10:54:57AM -0800, Eric Biggers wrote:
> On Thu, Jan 19, 2023 at 04:28:42PM -0800, Kees Cook wrote:
> > On Thu, Jan 19, 2023 at 03:19:21PM -0500, Seth Jenkins wrote:
> > > > Do you have a plan to backport this into upstream LTS kernels?
> > > 
> > > As I understand, the answer is "hopefully yes" with the big
> > > presumption that all stakeholders are on board for the change. There
> > > is *definitely* a plan to *submit* backports to the stable trees, but
> > > ofc it will require some approvals.
> > 
> > I've asked for at least v6.1.x (it's a clean cherry-pick). Earlier
> > kernels will need some non-trivial backporting. Is there anyone that
> > would be interested in stepping up to do that?
> > 
> > https://lore.kernel.org/lkml/202301191532.AEEC765@keescook
> > 
> 
> I've sent out a backport to 5.15:
> https://lore.kernel.org/stable/20230124185110.143857-1-ebiggers@kernel.org/T/#t

Also 5.10, which wasn't too hard after doing 5.15:
https://lore.kernel.org/stable/20230124193004.206841-1-ebiggers@kernel.org/T/#t

- Eric