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=-8.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, 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 AFA7ECA9EA9 for ; Sun, 20 Oct 2019 09:10:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B9FC21928 for ; Sun, 20 Oct 2019 09:10:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726285AbfJTJJ5 (ORCPT ); Sun, 20 Oct 2019 05:09:57 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:32823 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726019AbfJTJJ4 (ORCPT ); Sun, 20 Oct 2019 05:09:56 -0400 Received: by ozlabs.org (Postfix, from userid 1034) id 46wv9b25JSz9sPK; Sun, 20 Oct 2019 20:09:55 +1100 (AEDT) X-powerpc-patch-notification: thanks X-powerpc-patch-commit: d10f60ae27d26d811e2a1bb39ded47df96d7499f In-Reply-To: <067a1b09f15f421d40797c2d04c22d4049a1cee8.1571071875.git.christophe.leroy@c-s.fr> To: Christophe Leroy , Benjamin Herrenschmidt , Paul Mackerras From: Michael Ellerman Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] powerpc/32s: fix allow/prevent_user_access() when crossing segment boundaries. Message-Id: <46wv9b25JSz9sPK@ozlabs.org> Date: Sun, 20 Oct 2019 20:09:55 +1100 (AEDT) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2019-10-14 at 16:51:28 UTC, Christophe Leroy wrote: > Make sure starting addr is aligned to segment boundary so that when > incrementing the segment, the starting address of the new segment is > below the end address. Otherwise the last segment might get missed. > > Fixes: a68c31fc01ef ("powerpc/32s: Implement Kernel Userspace Access Protection") > Signed-off-by: Christophe Leroy Applied to powerpc fixes, thanks. https://git.kernel.org/powerpc/c/d10f60ae27d26d811e2a1bb39ded47df96d7499f cheers