Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752552AbbLOCmK (ORCPT ); Mon, 14 Dec 2015 21:42:10 -0500 Received: from e23smtp01.au.ibm.com ([202.81.31.143]:58017 "EHLO e23smtp01.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751423AbbLOCmI (ORCPT ); Mon, 14 Dec 2015 21:42:08 -0500 X-IBM-Helo: d23dlp03.au.ibm.com X-IBM-MailFrom: andrew.donnellan@au1.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Subject: Re: [RFC] powerpc: Enable UBSAN support To: Daniel Axtens , linuxppc-dev@ozlabs.org References: <1449708123-7340-1-git-send-email-dja@axtens.net> Cc: akpm@linux-foundation.org, Andrey Ryabinin , linux-kernel@vger.kernel.org From: Andrew Donnellan Message-ID: <566F7D9A.4050806@au1.ibm.com> Date: Tue, 15 Dec 2015 13:40:26 +1100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.4.0 MIME-Version: 1.0 In-Reply-To: <1449708123-7340-1-git-send-email-dja@axtens.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15121502-1618-0000-0000-0000034B58A8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1633 Lines: 43 On 10/12/15 11:42, Daniel Axtens wrote: > This hooks up UBSAN support for PowerPC. > > So far it's found some interesting cases where we don't properly sanitise > input to shifts, including one in our futex handling. Nothing critical, > but interesting and worth fixing. > > CC: Andrey Ryabinin > --- > > This to be applied on top of next with Andrey's patches: > 1) https://patchwork.kernel.org/patch/7761341/ > 2) https://patchwork.kernel.org/patch/7761351/ > 3) https://patchwork.kernel.org/patch/7761361/ > 4) https://patchwork.kernel.org/patch/7785791/ > > This is RFC for a couple of reasons: > > - I'd like the original patches to > s/ARCH_HAS_UBSAN_SANTIZE_ALL/ARCH_HAS_UBSAN_SAN*I*TIZE_ALL/ > (I'm about to send an email about that) > > - I've only tested on LE pseries so far - I want to test on powernv, > and on BE. > > Signed-off-by: Daniel Axtens I tested this patch as found in linux-next, along with the SANITIZE_ALL typo fix, on a big-endian BML system, with gcc 5.2.1. It successfully picked up one of the shift input issues that Daniel found, so therefore... Tested-by: Andrew Donnellan -- Andrew Donnellan Software Engineer, OzLabs andrew.donnellan@au1.ibm.com Australia Development Lab, Canberra +61 2 6201 8874 (work) IBM Australia Limited -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/