linux-kernel - Re: [PATCH v3 2/6] exit: Put an upper limit on how often we can oops

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Message-ID: <E5988762-D1D7-4C8A-ACC8-E623D4B29A11@kernel.org>
Date:   Tue, 24 Jan 2023 15:09:51 -0800
From:   Kees Cook <kees@...nel.org>
To:     Eric Biggers <ebiggers@...nel.org>,
        Kees Cook <keescook@...omium.org>
CC:     Seth Jenkins <sethjenkins@...gle.com>,
        SeongJae Park <sj@...nel.org>, Jann Horn <jannh@...gle.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Linus Torvalds <torvalds@...uxfoundation.org>,
        Andy Lutomirski <luto@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        tangmeng <tangmeng@...ontech.com>,
        "Guilherme G. Piccoli" <gpiccoli@...lia.com>,
        Tiezhu Yang <yangtiezhu@...ngson.cn>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Arnd Bergmann <arnd@...db.de>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Juri Lelli <juri.lelli@...hat.com>,
        Vincent Guittot <vincent.guittot@...aro.org>,
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        Anton Vorontsov <anton@...msg.org>,
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Subject: Re: [PATCH v3 2/6] exit: Put an upper limit on how often we can oops

On January 24, 2023 11:38:05 AM PST, Eric Biggers <ebiggers@...nel.org> wrote:
>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

Oh excellent! Thank you very much!

-Kees



-- 
Kees Cook