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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=unavailable 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 61122C3A5A1 for ; Wed, 28 Aug 2019 17:19:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 43C0B20679 for ; Wed, 28 Aug 2019 17:19:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726623AbfH1RT3 (ORCPT ); Wed, 28 Aug 2019 13:19:29 -0400 Received: from mx1.redhat.com ([209.132.183.28]:25004 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726400AbfH1RT3 (ORCPT ); Wed, 28 Aug 2019 13:19:29 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id BB35A807064; Wed, 28 Aug 2019 17:19:28 +0000 (UTC) Received: from treble (ovpn-121-55.rdu2.redhat.com [10.10.121.55]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5FB1360BEC; Wed, 28 Aug 2019 17:19:26 +0000 (UTC) Date: Wed, 28 Aug 2019 12:19:23 -0500 From: Josh Poimboeuf To: Randy Dunlap Cc: akpm@linux-foundation.org, broonie@kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-next@vger.kernel.org, mhocko@suse.cz, mm-commits@vger.kernel.org, sfr@canb.auug.org.au, Peter Zijlstra Subject: Re: mmotm 2019-08-27-20-39 uploaded (objtool: xen) Message-ID: <20190828171923.4sir3sxwsnc2pvjy@treble> References: <20190828034012.sBvm81sYK%akpm@linux-foundation.org> <8b09d93a-bc42-bd8e-29ee-cd37765f4899@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <8b09d93a-bc42-bd8e-29ee-cd37765f4899@infradead.org> User-Agent: NeoMutt/20180716 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.6.2 (mx1.redhat.com [10.5.110.67]); Wed, 28 Aug 2019 17:19:29 +0000 (UTC) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Wed, Aug 28, 2019 at 09:58:37AM -0700, Randy Dunlap wrote: > On 8/27/19 8:40 PM, akpm@linux-foundation.org wrote: > > The mm-of-the-moment snapshot 2019-08-27-20-39 has been uploaded to > > > > http://www.ozlabs.org/~akpm/mmotm/ > > > > mmotm-readme.txt says > > > > README for mm-of-the-moment: > > > > http://www.ozlabs.org/~akpm/mmotm/ > > > > This is a snapshot of my -mm patch queue. Uploaded at random hopefully > > more than once a week. > > > > You will need quilt to apply these patches to the latest Linus release (5.x > > or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in > > http://ozlabs.org/~akpm/mmotm/series > > > > The file broken-out.tar.gz contains two datestamp files: .DATE and > > .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss, > > followed by the base kernel version against which this patch series is to > > be applied. > > > > drivers/xen/gntdev.o: warning: objtool: gntdev_copy()+0x229: call to __ubsan_handle_out_of_bounds() with UACCESS enabled Easy one :-) diff --git a/tools/objtool/check.c b/tools/objtool/check.c index 0c8e17f946cd..6a935ab93149 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -483,6 +483,7 @@ static const char *uaccess_safe_builtin[] = { "ubsan_type_mismatch_common", "__ubsan_handle_type_mismatch", "__ubsan_handle_type_mismatch_v1", + "__ubsan_handle_out_of_bounds", /* misc */ "csum_partial_copy_generic", "__memcpy_mcsafe",