From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,FROM_LOCAL_NOVOWEL, HEADER_FROM_DIFFERENT_DOMAINS,HK_RANDOM_FROM,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,USER_AGENT_GIT autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 39154C47404 for ; Sat, 12 Oct 2019 00:37:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0BB3920663 for ; Sat, 12 Oct 2019 00:37:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="GwdKcecD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727820AbfJLAh2 (ORCPT ); Fri, 11 Oct 2019 20:37:28 -0400 Received: from mail-lj1-f195.google.com ([209.85.208.195]:46881 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726345AbfJLAh2 (ORCPT ); Fri, 11 Oct 2019 20:37:28 -0400 Received: by mail-lj1-f195.google.com with SMTP id d1so11391386ljl.13 for ; Fri, 11 Oct 2019 17:37:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=f4Ki0HjVKaflfmxJ2byTawmZD59wBPdISnRBsFf1+EE=; b=GwdKcecDHoPtTKefPJDFPiTifnR2o2DiQsdu9eYxjZKHNGVh4M3eyOGTtSM4dIBG9w 2RD8MYbieejLw0IVF+lNSxv0IoF0Tg5WlyczNlhvVquO1YUWfqC+lsZsa+DTKHu9ThbS t+PHqCQqQFlR0W2nZ4ZSIuYfyJmz7hREKLdbJEofiuaDJXYcxJNbydcD0h0c8WqVUJl9 493ZoqzSV/+idkqjGDTon1NwD63dr4FCuieLRUOIjNQXWGJjMIBC2EOAfdD4LJ2YPLKp DXao1EjYBaRXqpKvw2MFhPr5LpYkb+twKkkUXKum9dBP/sPfT68zeszbwuqWLzIRsIQE MQ5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=f4Ki0HjVKaflfmxJ2byTawmZD59wBPdISnRBsFf1+EE=; b=cZrZqU9vePX6/OU+9bMsvtkFY5QRXZdsqFHgHc5uT5VXWUa9huzcwP5TJlMT6sAfq/ 7igEovJXK9spZBNrsXivFgCtxQEWw6F4g4YolLqAy5iYGUinVqA4CHDloR0xeVh9jNuV Uq9sW2aaUz2a0rcu/OqzslQgVY2/ufWco1j1mZl5mgvEHOlD6zriGXDg4l+zStp/xug7 oH9PnaWawXK57g4OWu0nIGCflPz9NPKpAnDsJkq8H94CwTvpWNQGiAy6vXmv+NLcahSq NgNfz2lUmTO4qrrYePQf0OArQTzx+REhvbHMT6VmhGo6+8QSu+4KWm4GDnAAuouEadhL r8Lg== X-Gm-Message-State: APjAAAURSMpatZvWOesYtm5DZ9iYwMTxPr7hHOkCUmpmRjwBFGH2ZvMe UopsgWxHsyX4TIpW19sHoyg= X-Google-Smtp-Source: APXvYqytgLNEilHpnDPZTz37dMIPamPyEfsAHb42Fyj4zkTggkCK5P5YAx4Af6P5wT6BgrshuxohoQ== X-Received: by 2002:a2e:858d:: with SMTP id b13mr9538774lji.71.1570840646279; Fri, 11 Oct 2019 17:37:26 -0700 (PDT) Received: from octofox.cadence.com (jcmvbkbc-1-pt.tunnel.tserv24.sto1.ipv6.he.net. [2001:470:27:1fa::2]) by smtp.gmail.com with ESMTPSA id f22sm2346620lfa.41.2019.10.11.17.37.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Oct 2019 17:37:25 -0700 (PDT) From: Max Filippov To: linux-xtensa@linux-xtensa.org, Al Viro Cc: Chris Zankel , linux-kernel@vger.kernel.org, Max Filippov Subject: [PATCH v2 0/4] xtensa: fix {get,put}_user() for 64bit values Date: Fri, 11 Oct 2019 17:37:04 -0700 Message-Id: <20191012003708.22182-1-jcmvbkbc@gmail.com> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, this series fixes return value, out-of-bound stack access and value truncation in xtensa implementation of {get,put}_user() for 64bit values. It also cleans up naming of assembly parameters in __{get,put}_user_asm and __check_align_{1,2,4}. Changes v1->v2: - initialize result when access_ok check fails in __get_user_check - initialize result in __get_user_asm for unaligned access Al Viro (1): xtensa: fix {get,put}_user() for 64bit values Max Filippov (3): xtensa: clean up assembly arguments in uaccess macros xtensa: fix type conversion in __get_user_[no]check xtensa: initialize result in __get_user_asm for unaligned access arch/xtensa/include/asm/uaccess.h | 105 +++++++++++++++++------------- 1 file changed, 60 insertions(+), 45 deletions(-) -- 2.20.1