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Sat, 24 Oct 2026 00:32:54 -0700 (PDT) Received: from localhost ([2a02:8071:56d1:2de0:1d24:d58d:2b65:c291]) by smtp.gmail.com with UTF8SMTPSA id ffacd0b85a97d-48e3ecd35c2sm2752126f8f.39.2026.10.24.00.32.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2026 00:32:53 -0700 (PDT) Date: Sat, 24 Oct 2026 09:32:51 +0200 From: Uwe =?utf-8?Q?Kleine-K=C3=B6nig?= To: Greg Kroah-Hartman Cc: Alex Williamson , Armin Wolf , David Lechner , Danilo Krummrich , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , Aaron Tomlin , Jonathan Corbet , Shuah Khan , Randy Dunlap , "Rafael J. Wysocki" , Steven Rostedt , Masami Hiramatsu , Mathieu Desnoyers , Bradley Morgan , Aleksandr Nogikh , linux-modules@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, linux-usb@vger.kernel.org, driver-core@lists.linux.dev, linux-trace-kernel@vger.kernel.org, Johan Hovold , Richard Weinberger , Thierry Reding , Jason Gunthorpe Subject: Re: [PATCH v4 0/3] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers Message-ID: References: <20260914-bind_taint-v4-0-eadf8a090903@linuxfoundation.org> <9bd3a34b-5e98-4038-80d6-da2c3b1948dd@gmx.de> <2026092321-province-yearly-44aa@gregkh> <2026092348-victory-erased-0e5a@gregkh> <20261023181326.0dc2f7ed@shazbot.org> <2026102437-vista-unsoiled-b089@gregkh> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="snd5d5o342ief275" Content-Disposition: inline In-Reply-To: <2026102437-vista-unsoiled-b089@gregkh> --snd5d5o342ief275 Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Subject: Re: [PATCH v4 0/3] driver core: add TAINT_FORCED_BIND for when userspace manually messes with devices and drivers MIME-Version: 1.0 Hello Greg, On Sat, Oct 24, 2026 at 06:56:34AM +0200, Greg Kroah-Hartman wrote: > We have real problems with random "bind/unbind" attempts that this taint > is here to help resolve as it was creating hundreds of false-positive > bug reports on developers all across the tree now that the fuzzers > decided to think this was a valid action to take. Without this taint, > people were being forced to add hacks to all drivers for this which is > not an acceptable solution. Why is it false positive? IMHO unless it involves a driver_override it is a bug to fix. So have you considered tainting on driver_override instead of bind/unbind? You did, I'm sure because several peoplel voiced that approach already, but unless I missed something, you didn't share your thoughts about it yet. https://lore.kernel.org/all/cover.1790612298.git.u.kleine-koenig@baylibre.com/ would be a suitable thread to share your opinion. 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