From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752204AbdFOFHy (ORCPT ); Thu, 15 Jun 2017 01:07:54 -0400 Received: from ozlabs.org ([103.22.144.67]:36501 "EHLO ozlabs.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750816AbdFOFHx (ORCPT ); Thu, 15 Jun 2017 01:07:53 -0400 Date: Thu, 15 Jun 2017 15:07:51 +1000 From: Stephen Rothwell To: Daniel Micay Cc: Kees Cook , linux-kernel@vger.kernel.org, Josh Poimboeuf , Andrew Morton Subject: Re: [PATCH] objtool: Add fortify_panic as __noreturn function Message-ID: <20170615150751.7c5dbc04@canb.auug.org.au> In-Reply-To: <1497502161.1435.9.camel@gmail.com> References: <20170615021851.GA83998@beast> <20170615140522.5f7027e1@canb.auug.org.au> <20170615142652.0c8b53ef@canb.auug.org.au> <1497502161.1435.9.camel@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Daniel, On Thu, 15 Jun 2017 00:49:21 -0400 Daniel Micay wrote: > > > So after that the errors (x86_64 allmodconfig build) are only: > > > > In file included from include/linux/bitmap.h:8:0, > > from include/linux/cpumask.h:11, > > from arch/x86/include/asm/cpumask.h:4, > > from arch/x86/include/asm/msr.h:10, > > from arch/x86/include/asm/processor.h:20, > > from arch/x86/include/asm/cpufeature.h:4, > > from arch/x86/include/asm/thread_info.h:52, > > from include/linux/thread_info.h:37, > > from arch/x86/include/asm/preempt.h:6, > > from include/linux/preempt.h:80, > > from include/linux/spinlock.h:50, > > from include/linux/mmzone.h:7, > > from include/linux/gfp.h:5, > > from arch/x86/power/hibernate_64.c:11: > > In function 'memcpy', > > inlined from 'relocate_restore_code' at > > arch/x86/power/hibernate_64.c:150:2, > > inlined from 'swsusp_arch_resume' at > > arch/x86/power/hibernate_64.c:186:8: > > include/linux/string.h:309:4: error: call to '__read_overflow2' > > declared with attribute error: detected read beyond size of object > > passed as 2nd parameter > > __read_overflow2(); > > ^ > > In file included from include/linux/bitmap.h:8:0, > > from include/linux/cpumask.h:11, > > from arch/x86/include/asm/cpumask.h:4, > > from arch/x86/include/asm/msr.h:10, > > from arch/x86/include/asm/processor.h:20, > > from arch/x86/include/asm/cpufeature.h:4, > > from arch/x86/include/asm/thread_info.h:52, > > from include/linux/thread_info.h:37, > > from arch/x86/include/asm/preempt.h:6, > > from include/linux/preempt.h:80, > > from include/linux/spinlock.h:50, > > from include/linux/mmzone.h:7, > > from include/linux/gfp.h:5, > > from include/linux/mm.h:9, > > from kernel/kexec_file.c:15: > > In function 'memcmp', > > inlined from 'kexec_load_purgatory' at kernel/kexec_file.c:900:6: > > include/linux/string.h:348:4: error: call to '__read_overflow' > > declared with attribute error: detected read beyond size of object > > passed as 1st parameter > > __read_overflow(); > > ^ > > > > Kees has the remaining ones here now: > > https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/log/?h=for-next/kspp Excellent, so hopefully tomorrow I won't need to revert (at which point the overnight builds (http://kisskb.ellerman.id.au/linux-next) will point out any more problems). > Not entirely sure what happened to the powerpc bits though. Maybe in the powerpc tree (git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git#next). -- Cheers, Stephen Rothwell