From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.221.52 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792827182; b=hmJG+Rd65bKsOA+79lcp0OfTnnhjw9LGAXH1EUkjJIjYd3MIwDv04u/8eLM74B4xBeT/ +0Np6tcNEm7LoDD6mTd6pVSviRbzQvYt987ZtfqpGZ8s4r6M85BoQERlf2VL4DOozAQI7 3q2WmvjwZHrO47T0uArNWvpq1NLg2fGklvOdMyfg1ykNceDoi3vf8qG7ezkbeO7ZTNKxs 8OUtCURpfRTWdQCnOP6iWwxfNqLSGlOz1MazD/9zR7nXkwXtX92gb9bOO9EhFongOz8YX dwSPT3u7pHSQSd+HYrp9uFWvx1JxKEkrHj04WNvZ5HDNMI0AzeZLk5uraN52XnURLzA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792827182; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; bh=li2QB09lPsjXluSnSfXMvObkOrNnmZZOmi28fPXekeo=; b=vkg4k7/vxo/5BTEtvga+Vug67/xl2yLvSsp4cmSgOFz2OFsFv/W6k8iQwkemnzcbABqV bhvucgIub0Z2ZsDHJ6hLjbuzk4lgjqmmPF2+rD3xQJch1ojjfcx4/SeQQfVgPFnqVOkld 1MelgTbMjQztrIwjKyJFlbk+M8U7hK/g9xcAWI4zEvzw2yNqXae7fk62tU5KqD+l1E6VS Wb92wsQEaGm4ATFsPy1dGg/q221JxQdWmJUYkQY0SduvebsFvSH+jdZGbOgSDpx7IUjyt fQP1JB4DSGWCQzR4Lt1XJKqRvgI74YfduiWOayc46o+wzoKovVeB++0hCkGeGt8i6tA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass header.d=baylibre.com header.i=@baylibre.com header.a=rsa-sha256 header.s=google header.b=bIDYtbOn; arc=none smtp.remote-ip=209.85.221.52 Received: from mail-wr1-f52.google.com (mail-wr1-f52.google.com [209.85.221.52]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3FF52606A31E for ; Sat, 24 Oct 2026 07:32:55 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 3FF52606A31E Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=baylibre.com header.i=@baylibre.com header.a=rsa-sha256 header.s=google header.b=bIDYtbOn Received: by mail-wr1-f52.google.com with SMTP id ffacd0b85a97d-48b042c0728so421247f8f.1 for ; Sat, 24 Oct 2026 00:32:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre.com; s=google; t=1792827174; x=1793431974; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=li2QB09lPsjXluSnSfXMvObkOrNnmZZOmi28fPXekeo=; b=bIDYtbOnPGADlrjGilR6HlFVpF/eIp31wIxr3wVKS/McxWVagsZZJcNMwIGOaDkaGh jPydXHn40ca3LBrlABACC/cWWoUxiiNQ6K37TuAZ9OwdOWByTtGVMcTPttbPs/rrEPpo lJ60v1+90zWJIUQbjPMADewT4OKMmnJWfpxYytolFHNH7DWkKldRUsZyWrhDofT7/PhB hnOIsKB4wTNr035cZj+SICgnq++LdGkxL98N7LJaydych2gY8QLXItAv1k93WeYHehTv Ds3pnjJrMgM8GsA9BuPW6XaI9nQwpsSBGPGmFcNOQnnUl7tbCIZ3e6bA8AfUd7KMXs7D IkNA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792827174; x=1793431974; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=li2QB09lPsjXluSnSfXMvObkOrNnmZZOmi28fPXekeo=; b=VyaFUEuQtygy54dJk+YFAKScqBG4eG4IIqFKlzRnshX8KkXzh8eUR4qHzSw74hwszL iEJT+JVcWF1/RnoiiMVnp290Bw9varwPb9MrhvJ1ERfFTXLFQ+4hkk0ff4L8XdLG9pZu lPOLdGzbkZrh2am5AF63qRyIyDAGBfzLqU757zpuexrDBOJifjahuLcYqdNN1IxRqq49 /HN+aKOmaPsPEU78fYo+2pCehjOi7wFycaEuZAcRIvr2URmzMgZ1ZjUFUY8rHf7U1lIK nUXR46rixHK4Mm6oAYAYwPt434StKzXCk8X81QoQQeXaLLcZ6ZulKfbDjrnfkNskFsM0 X1WA== X-Forwarded-Encrypted: i=1; AKwUvBxC7a+93VQjFFL9qk9Qln0CJF6wkJlBh4kT223SeumkPZldasrRgsKAksaw4dQbLZJcUFRx7djHyzE=@vger.kernel.org X-Gm-Message-State: AFq9FYI9LeGbVdZLgG4HERYgAe97v6MAJ1y6qZ38aTEVpADNvkllQIUi Ez2xNqbqThJbCvTIn+yWjHWHF8X6ZSTfw2Qr9VFJTfFdcwClOMVbGLxVZMz0sqFbtd0= X-Gm-Gg: AYBFou1wLBBokw3S/D8MDSOFqD898XG8TzQTrOzgNgJeDMnxel0uWaOCsiiT0+UxS2k cX4LcRLcaAWm9CWvhLMZrPG8wjLvGYe+tFT1H3Fh1OFK6c6yYMxtZFF7FXmH1+sl+V2zbKsDyY+ e4ziKyuyWviNmZoZVdCLzYCu5UwZK4yvBEaGu//y5ZAqfkQlXCsxn1SmLSr9obAi6lWZSE2UXbt OO6v4tJvYzoLFuwMMslgpc3dX8Utk561ku8WUHdoWui5Q5oZrTlQMXBygNcVeY/lyWSnMcMJxX2 WwWkjQLh1B97FGeL7ntqjaj27wahn1ftMakZlwpMvIqF4D2gr2pRQ+X99BMh8pxUFwg8IwTK9qy rQjOC94q8lBjecjFCwsZStX7fYEqlIePjQsWc2w0gzufYD/hK04fjwUEtm4y4lIoExK0x/Tr0ry X7deq9pUfY45+J6i21ZTShAGJlZBVPCPIkbd3iEXpAke6qBCQQEOlCTyC/OZb/qYK4RloNgNSr+ 3KO1d9wtOgNEkqULN8lN5n8RgOlDVdQMjAlcK8wORcv1x7wSNzV8BjLxhgdqhoHGU30RdmEn0WT hv2AMIDMHW/J1AM93BxX6qrkubPdC0I2s/U= X-Received: by 2002:a05:6000:40e1:b0:48e:932:aefa with SMTP id ffacd0b85a97d-48e3eb9263fmr1987532f8f.26.1792827174053; 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-usb@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. Best regards Uwe --snd5d5o342ief275 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEP4GsaTp6HlmJrf7Tj4D7WH0S/k4FAmrcXyAACgkQj4D7WH0S /k6DIAf8DAU1k1OUjt0oOb7bxXYD1+h/zw0y3dtkGS8G+zRTS/qzzPPjfmqRP0h9 J5L7m6Y88ojmkEkaTuZykFHJjTD0oRB1HPOJTgCW6xGNMm2ZWeh0nTUKgD9H5GY7 w2HgqDafsFSbrwjrivGi8AGwp3WErwD0r+kOCr0MrPDA9d4RxztnKRXgDPP79VFz 52dVyEVot3hTvhqxMfO0yLVcwGhQaO5VnfAGO3zqb7oOJoL3MzMUVk3Qo8NuSz6R zP04L1Pg9uTjUgCUKeKGGkzd/2+nMfGXjUGnId1rwsRI7WfBXP4t0r6JIOZsSNIY RuU/lvGyyvYfTEwZjc1S5kWfcRrIdw== =5xdK -----END PGP SIGNATURE----- --snd5d5o342ief275--