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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id k15-20020a170902d58f00b001947c22185bsm11085080plh.184.2023.01.19.16.28.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 19 Jan 2023 16:28:42 -0800 (PST) Date: Thu, 19 Jan 2023 16:28:42 -0800 From: Kees Cook To: Seth Jenkins Cc: SeongJae Park , Jann Horn , Luis Chamberlain , Greg KH , Linus Torvalds , Andy Lutomirski , Andrew Morton , tangmeng , "Guilherme G. Piccoli" , Tiezhu Yang , Sebastian Andrzej Siewior , "Eric W. Biederman" , Arnd Bergmann , Dmitry Vyukov , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Daniel Bristot de Oliveira , Valentin Schneider , Andrey Ryabinin , Alexander Potapenko , Andrey Konovalov , Vincenzo Frascino , David Gow , "Paul E. McKenney" , Jonathan Corbet , Baolin Wang , "Jason A. Donenfeld" , Eric Biggers , Huang Ying , Anton Vorontsov , Mauro Carvalho Chehab , Laurent Dufour , Rob Herring , 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 Message-ID: <202301191627.FC1E24ED5@keescook> References: <20221117234328.594699-2-keescook@chromium.org> <20230119201023.4003-1-sj@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspam-User: X-Rspamd-Server: rspam03 X-Stat-Signature: ygyefkquotxd1eeua75tse5zam4r8tot X-Rspamd-Queue-Id: 01735180002 X-HE-Tag: 1674174524-176040 X-HE-Meta: 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 Hkz8sZBj 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 -Kees -- Kees Cook