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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 4E955C33CA1 for ; Mon, 20 Jan 2020 13:22:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2F58B21835 for ; Mon, 20 Jan 2020 13:22:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727107AbgATNWH (ORCPT ); Mon, 20 Jan 2020 08:22:07 -0500 Received: from youngberry.canonical.com ([91.189.89.112]:35445 "EHLO youngberry.canonical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726642AbgATNWH (ORCPT ); Mon, 20 Jan 2020 08:22:07 -0500 Received: from [154.119.55.242] (helo=wittgenstein) by youngberry.canonical.com with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.86_2) (envelope-from ) id 1itWy2-0005zt-Dn; Mon, 20 Jan 2020 13:19:46 +0000 Date: Mon, 20 Jan 2020 14:19:31 +0100 From: Christian Brauner To: syzbot Cc: a@unstable.cc, akpm@linux-foundation.org, allison@lohutok.net, arnd@arndb.de, axboe@kernel.dk, b.a.t.m.a.n@lists.open-mesh.org, bp@alien8.de, catalin.marinas@arm.com, chris@zankel.net, christian@brauner.io, coreteam@netfilter.org, davem@davemloft.net, elena.reshetova@intel.com, florent.fourcot@wifirst.fr, fw@strlen.de, geert@linux-m68k.org, hare@suse.com, heiko.carstens@de.ibm.com, hpa@zytor.com, info@metux.net, jcmvbkbc@gmail.com, jeremy@azazel.net, johannes.berg@intel.com, kadlec@netfilter.org, linux-api@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-xtensa@linux-xtensa.org, linux@armlinux.org.uk, mareklindner@neomailbox.ch, mingo@redhat.com, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, peterz@infradead.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, viro@zeniv.linux.org.uk, will@kernel.org, x86@kernel.org Subject: Re: KASAN: slab-out-of-bounds Read in bitmap_ip_ext_cleanup Message-ID: <20200120131930.pbhbsrm4bk4lq3d7@wittgenstein> References: <000000000000bdb5b2059c865f5c@google.com> <000000000000c795fa059c884c21@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <000000000000c795fa059c884c21@google.com> User-Agent: NeoMutt/20180716 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Sun, Jan 19, 2020 at 05:35:01PM -0800, syzbot wrote: > syzbot has bisected this bug to: > > commit d68dbb0c9ac8b1ff52eb09aa58ce6358400fa939 > Author: Christian Brauner > Date: Thu Jun 20 23:26:35 2019 +0000 > > arch: handle arches who do not yet define clone3 > > bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1456fed1e00000 > start commit: 09d4f10a net: sched: act_ctinfo: fix memory leak > git tree: net > final crash: https://syzkaller.appspot.com/x/report.txt?x=1656fed1e00000 > console output: https://syzkaller.appspot.com/x/log.txt?x=1256fed1e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=7e89bd00623fe71e > dashboard link: https://syzkaller.appspot.com/bug?extid=6491ea8f6dddbf04930e > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=141af959e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1067fa85e00000 > > Reported-by: syzbot+6491ea8f6dddbf04930e@syzkaller.appspotmail.com > Fixes: d68dbb0c9ac8 ("arch: handle arches who do not yet define clone3") > > For information about bisection process see: https://goo.gl/tpsmEJ#bisection This bisect seems bogus. Christian