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[198.145.64.163]) by smtp.gmail.com with ESMTPSA id a16sm3464188pgh.48.2020.09.12.00.55.04 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 12 Sep 2020 00:55:04 -0700 (PDT) Date: Sat, 12 Sep 2020 00:55:03 -0700 From: Kees Cook To: John Wood Cc: Jann Horn , Matthew Wilcox , Jonathan Corbet , Alexander Viro , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Luis Chamberlain , Iurii Zaikin , James Morris , "Serge E. Hallyn" , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-security-module@vger.kernel.org Subject: Re: [RESEND][RFC PATCH 0/6] Fork brute force attack mitigation (fbfam) Message-ID: <202009120053.9FB7F2A7@keescook> References: <20200910202107.3799376-1-keescook@chromium.org> <202009101656.FB68C6A@keescook> <20200911144806.GA4128@ubuntu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200911144806.GA4128@ubuntu> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 11, 2020 at 04:48:06PM +0200, John Wood wrote: > In other words, a late reply to this serie comments is not a lack of > interest. Moreover, I think it would be better that I try to understand and > to implement your ideas before anything else. Understood! :) > My original patch serie is composed of 9 patches, so the 3 lasts are lost. > Kees: Have you removed them for some reason? Can you send them for review? > > security/fbfam: Add two new prctls to enable and disable the fbfam feature > https://github.com/johwood/linux/commit/8a36399847213e7eb7b45b853568a53666bd0083 > > Documentation/security: Add documentation for the fbfam feature > https://github.com/johwood/linux/commit/fb46804541f5c0915f3f48acefbe6dc998815609 > > MAINTAINERS: Add a new entry for the fbfam feature > https://github.com/johwood/linux/commit/4303bc8935334136c6ef47b5e50b87cd2c472c1f Oh, hm, I'm not sure where they went. I think they were missing from my inbox when I saved your series from email. An oversight on my part; apologies! > Is there a problem if I ask for some guidance (replying to this thread) > during the process to do my second patch series? Please feel free! I'm happy to help. :) > My goal is to learn as much as possible doing something useful for the > linux kernel. Sounds good; thanks! -- Kees Cook