Received: by 2002:a25:ca44:0:0:0:0:0 with SMTP id a65csp1686361ybg; Wed, 29 Jul 2020 23:13:10 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyDB/t61rK3czqkwI867QWVMh/K2QeviRQWagw1l0aKcAqwGNNV0L3RgNyl6R8gkUZLGwXy X-Received: by 2002:a17:906:52c5:: with SMTP id w5mr1064181ejn.425.1596089590642; Wed, 29 Jul 2020 23:13:10 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1596089590; cv=none; d=google.com; s=arc-20160816; b=q/pF1PTkxrLWMNBCcXo1BiuWTe6xxQPIHAkpb58Y9oeu/41fzMrCvYSLbKAf/uGkz/ D8dES/QBtnWjq/z9m7lCIKddY+YruxuNtOweheoIhLp1LcZNgA5V705YP7ZrF/4UZjs8 Ov/WfK8RikPDyITFgTSCO2eRghEiYUFG4evTlybVxMyBhWPs3adPb/zE8lTuqwyEj+zw aaTHzOKiZDzTNIy7K87FaM3gmlg46aFYhw1AOiePqQzlKv8HzpwzLiy5KylX/co9Ad59 9A1FJTN3BKzfOLPWzuXlMPZSlPeTl1ShcMXz9fm4tjiPNAaYl0VCkUcC0ofPQRiLzMYA icBw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :message-id:date:subject:cc:to:from:dkim-signature; bh=EJ/xSr4Slr9PDG/RHcGFIsz8YPKBZNCUcGfQ1BXp/oA=; b=aqAHR4AWkD9jb3OjUSEJNA7IihstNHxUD8kpaWRGBLiB6E9yTWdWZK3OkNddld9I6Y sP5i1Mv5dayL6sCOcrxc1P2gadI4eUtPJAmuyaf0MiH7UXmjfTPOZ4R8JqAtQfVEHxLg eMeeiS9y0G2LrB0zmuUYQygQpolYsYfVqEHGRUUzs1nnn3qx0qdroKEe+C8cWS8GfA2j Slj15EInTIQr17XRlDj1c2/YZWbF0DPV/Bxjl0AhVkXv6hkM1GRHxAbIyNQJLcyDOQo+ Jtm1CcPq4ZIJNjhiEEVaZ8kqpE4kkIuKQMlJz1q6mawWmIVmnDUm3YHRcXM1WsA0QJzt dPAA== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=iqxFPnhP; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id p2si2560224eju.192.2020.07.29.23.12.47; Wed, 29 Jul 2020 23:13:10 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=casper.20170209 header.b=iqxFPnhP; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728671AbgG3GKi (ORCPT + 99 others); Thu, 30 Jul 2020 02:10:38 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34830 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725892AbgG3GKh (ORCPT ); Thu, 30 Jul 2020 02:10:37 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BA241C061794 for ; Wed, 29 Jul 2020 23:10:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=EJ/xSr4Slr9PDG/RHcGFIsz8YPKBZNCUcGfQ1BXp/oA=; b=iqxFPnhPx40Z+lwdPlVwACPnma Fj1IdmHiSCKC62LI3/tPhOSvmAO1h3Dwr+Y5bbFgka7B+e1C8dco6xUOybS/zvwQPgbezrez8wU8v NQMlGU4Kj65zYtALJ0BGcAY1KCgydO6J7IpXvneIZBantP34URoQ7ueOtSu2REGdRw/LJ/UAqD7N1 Yiyv4EpqhTooDwLQoSn98ACisd1I1TwwLTcaLHGsFt9NSFhRZPxBZ6j81J+f1kO4Kz7HSeChEQkAh Fs6sH7xTrq34Bi85pyFhNy+XMXoBhjxMUjucvhnWhXkWhx5i6C6PqXPngqVJ6jFau1vvy2KyhjDye YUrCnIpw==; Received: from 138.57.168.109.cust.ip.kpnqwest.it ([109.168.57.138] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1k11ls-0007U6-Je; Thu, 30 Jul 2020 06:10:32 +0000 From: Christoph Hellwig To: Jessica Yu Cc: Greg Kroah-Hartman , linux-kernel@vger.kernel.org (open list) Subject: inherit TAINT_PROPRIETARY_MODULE v2 Date: Thu, 30 Jul 2020 08:10:19 +0200 Message-Id: <20200730061027.29472-1-hch@lst.de> X-Mailer: git-send-email 2.27.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jessica, we've had a bug in our resolution of _GPL modules since day one, that is a module can claim to be GPL licensed and use _GPL exports, while it also depends on symbols from non-GPL modules. This is used as a circumvention of the _GPL exports by using a small shim module using the _GPL exports and the other functionality. A recent example can be found here: https://lore.kernel.org/netdev/6376CA34-BC6F-45DE-9FFD-7E32664C7569@fb.com/T/#md514322fdfa212afe9f1d3eb4e5f7eaefece36eb Changes since v1: - standardize on one spelling of "license" - fix a commit message type Diffstat: include/linux/module.h | 26 +++----------------------- kernel/module.c | 46 +++++++++++++++++++++++++++++----------------- 2 files changed, 32 insertions(+), 40 deletions(-)