Path: csiph.com!weretis.net!feeder8.news.weretis.net!news.samoylyk.net!gothmog.csi.it!bofh.it!news.nic.it!robomod From: Bastian Blank Newsgroups: linux.debian.kernel Subject: Re: Looking for feedback on CONFIG_MODULE_HASHES for Linux Date: Sat, 22 Nov 2025 17:00:01 +0100 Message-ID: References: X-Original-To: Fabian =?utf-8?Q?Gr=C3=BCnbichler?= , Thomas =?utf-8?Q?Wei=C3=9Fschuh?= X-Mailbox-Line: From debian-kernel-request@lists.debian.org Sat Nov 22 15:57:10 2025 Old-Return-Path: X-Amavis-Spam-Status: No, score=-109.411 tagged_above=-10000 required=5.3 tests=[BAYES_00=-2, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FOURLA=0.1, LDO_WHITELIST=-5, RCVD_IN_DNSWL_MED=-2.3, USER_IN_DKIM_WELCOMELIST=-0.01, USER_IN_DKIM_WHITELIST=-100] autolearn=ham autolearn_force=no Mail-Followup-To: Fabian =?utf-8?Q?Gr=C3=BCnbichler?= , Thomas =?utf-8?Q?Wei=C3=9Fschuh?= , rb-general , debian-kernel@lists.debian.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Mailing-List: archive/latest/152401 List-ID: List-URL: List-Archive: https://lists.debian.org/msgid-search/20251122154105.ygqoqpig32rsglnr@shell.thinkmo.de Approved: robomod@news.nic.it Lines: 43 Organization: linux.* mail to news gateway Sender: robomod@news.nic.it X-Original-Cc: rb-general , debian-kernel@lists.debian.org X-Original-Date: Sat, 22 Nov 2025 16:41:05 +0100 X-Original-Message-ID: <20251122154105.ygqoqpig32rsglnr@shell.thinkmo.de> X-Original-References: <1909c6cd-9684-4baf-bf54-b4e915718670@t-8ch.de> <2b4fafe1-d600-4ff5-90b9-837f92f5bd72@app.fastmail.com> Xref: csiph.com linux.debian.kernel:90192 On Tue, Nov 18, 2025 at 06:32:35PM +0100, Fabian Grünbichler wrote: > On Thu, Nov 13, 2025, at 9:10 PM, Thomas Weißschuh via rb-general wrote: > > The current form of the patches can be found at [1], they are only slightly > > adapted from the previous submission to LKML. I'll try and take a look at those. > > adapted from the previous submission to LKML. Remaining open topics before the > > next submission are proper IMA support and stripping of modules. Yeah, stripping is a critical feature. My take on that would be something like that: - During the build process, not only link .ko, but also directly create the stripped version as maybe .ko.strip. - INSTALL_MOD_STRIP will then only select which of the two files to install, not actually call strip. As additional thing: To mimic the current behaviour of the Debian package, where we don't sign the unstripped files shipped for debugging help, we only want the stripped versions show up as hashes. But this we could do on our own. In the end this may reduce the attack surface due to a lot more debugging info. > > So if you are packaging Linux for your distribution, have looked at my > > patches > > and are eager to use them, please let me know. My plan is to talk with > > the > > upstream maintainers at the upcoming Linux Plumbers Conference on 11th > > of December. > Given the recent discussion on IRC about this, I figured this might be > the easiest way to get the ball rolling on potentially getting this patch > series endorsed/.. by the Debian kernel team - or at least getting a > written expression of interest or further discussion :) Thank you for bringing this up. Yes, Debian is interested in this patch set, so we can make our kernel builds reproducible again. Bastian -- We Klingons believe as you do -- the sick should die. Only the strong should live. -- Kras, "Friday's Child", stardate 3497.2