Date:   Tue, 24 Jan 2023 15:09:51 -0800
From:   Kees Cook <kees@kernel.org>
To:     Eric Biggers <ebiggers@kernel.org>,
        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>,
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        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 January 24, 2023 11:38:05 AM PST, Eric Biggers <ebiggers@kernel=2Eorg> w=
rote:
>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?
>> > >=20
>> > > As I understand, the answer is "hopefully yes" with the big
>> > > presumption that all stakeholders are on board for the change=2E Th=
ere
>> > > is *definitely* a plan to *submit* backports to the stable trees, b=
ut
>> > > ofc it will require some approvals=2E
>> >=20
>> > I've asked for at least v6=2E1=2Ex (it's a clean cherry-pick)=2E Earl=
ier
>> > kernels will need some non-trivial backporting=2E Is there anyone tha=
t
>> > would be interested in stepping up to do that?
>> >=20
>> > https://lore=2Ekernel=2Eorg/lkml/202301191532=2EAEEC765@keescook
>> >=20
>>=20
>> I've sent out a backport to 5=2E15:
>> https://lore=2Ekernel=2Eorg/stable/20230124185110=2E143857-1-ebiggers@k=
ernel=2Eorg/T/#t
>
>Also 5=2E10, which wasn't too hard after doing 5=2E15:
>https://lore=2Ekernel=2Eorg/stable/20230124193004=2E206841-1-ebiggers@ker=
nel=2Eorg/T/#t

Oh excellent! Thank you very much!

-Kees


--=20
Kees Cook