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=-11.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 5709AC2D0EC for ; Sat, 28 Mar 2020 11:00:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3530920716 for ; Sat, 28 Mar 2020 11:00:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727774AbgC1LAa (ORCPT ); Sat, 28 Mar 2020 07:00:30 -0400 Received: from Galois.linutronix.de ([193.142.43.55]:55563 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727302AbgC1LAG (ORCPT ); Sat, 28 Mar 2020 07:00:06 -0400 Received: from [5.158.153.53] (helo=tip-bot2.lab.linutronix.de) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1jI9C8-0003fP-M2; Sat, 28 Mar 2020 12:00:04 +0100 Received: from [127.0.1.1] (localhost [IPv6:::1]) by tip-bot2.lab.linutronix.de (Postfix) with ESMTP id C2E4B1C0483; Sat, 28 Mar 2020 12:00:01 +0100 (CET) Date: Sat, 28 Mar 2020 11:00:01 -0000 From: "tip-bot2 for Al Viro" Reply-to: linux-kernel@vger.kernel.org To: linux-tip-commits@vger.kernel.org Subject: [tip: x86/cleanups] x86 kvm page table walks: switch to explicit __get_user() Cc: Al Viro , x86 , LKML MIME-Version: 1.0 Message-ID: <158539320147.28353.8883550146531337005.tip-bot2@tip-bot2> X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The following commit has been merged into the x86/cleanups branch of tip: Commit-ID: a4814443993c7c8686036bb8ca0df6abc499d63f Gitweb: https://git.kernel.org/tip/a4814443993c7c8686036bb8ca0df6abc499d63f Author: Al Viro AuthorDate: Sat, 15 Feb 2020 11:29:04 -05:00 Committer: Al Viro CommitterDate: Sat, 15 Feb 2020 17:26:26 -05:00 x86 kvm page table walks: switch to explicit __get_user() Signed-off-by: Al Viro --- arch/x86/kvm/mmu/paging_tmpl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h index 4e1ef04..5bea4cf 100644 --- a/arch/x86/kvm/mmu/paging_tmpl.h +++ b/arch/x86/kvm/mmu/paging_tmpl.h @@ -400,7 +400,7 @@ retry_walk: goto error; ptep_user = (pt_element_t __user *)((void *)host_addr + offset); - if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte)))) + if (unlikely(__get_user(pte, ptep_user))) goto error; walker->ptep_user[walker->level - 1] = ptep_user;