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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 01BC8C5DF60 for ; Thu, 7 Nov 2019 13:43:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE1102077C for ; Thu, 7 Nov 2019 13:43:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731049AbfKGNmH (ORCPT ); Thu, 7 Nov 2019 08:42:07 -0500 Received: from mail-il1-f199.google.com ([209.85.166.199]:44309 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728568AbfKGNmF (ORCPT ); Thu, 7 Nov 2019 08:42:05 -0500 Received: by mail-il1-f199.google.com with SMTP id 13so2642709iln.11 for ; Thu, 07 Nov 2019 05:42:05 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:in-reply-to:message-id:subject :from:to; bh=rGCeFvT/AQARxs+6mGwlebmAqlHglnh6rUP8Pgma5SE=; b=EeSiBB4zcdokOv2ZUZNwcNvZ6M317dnsJnc637lMbgyMIc0G2MR1+ohAKdXXtpSnQU 519BnzC4cIrsm0NoZe9kaakN4KJtcoMpUHdt1GLow1XNa1Wg9W6wSY0FJ46Zl+WcFTL4 kj01mpW/i9mVmR7kSSAZRcYyjiSnlA8EeM9+t/LI4BONo2u+GIU1irfrHGt7vq+5LFIp +KCy+XL+LPudYTCkofstrcZo5cx2EdeH5B5mNXFTXR/s8yiKa6ufGdZmHfkmlAi5Ie+T FnnC0MnO+P8ncnLD+y9Ms0T/XiBp4lddHMgujSGw1o1K7IEx1dgvqIm7TizUDljS6ga0 4Brw== X-Gm-Message-State: APjAAAU3ObJnp75RX/HMIhHcbqY4rDrBgTV+uPBlffYkxnL+nvhu2Owv fhtVqfKOkReqNUU4NKlMlOTNDOYesgOE5DVKYF4lx3Mk0Q50 X-Google-Smtp-Source: APXvYqxHTBWUBJD+8E1NyDqdkz7hV5BSqgFdxPIDCKCY0BxMuoog4ra33v5nSn+Kxh1U5HB1IkGWjlzMWRyONaT5JSDK+u98616Z MIME-Version: 1.0 X-Received: by 2002:a5e:d917:: with SMTP id n23mr3702806iop.28.1573134124661; Thu, 07 Nov 2019 05:42:04 -0800 (PST) Date: Thu, 07 Nov 2019 05:42:04 -0800 In-Reply-To: <001a113fe6d081698f0568a5dcac@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000af44bb0596c1d4e8@google.com> Subject: Re: KASAN: use-after-free Read in _decode_session4 From: syzbot To: davem@davemloft.net, herbert@gondor.apana.org.au, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, sbrivio@redhat.com, sd@queasysnail.net, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org syzbot suspects this bug was fixed by commit: commit c6741fbed6dc0f183d26c4b6bca4517672f92e6c Author: Stefano Brivio Date: Thu Mar 15 16:17:11 2018 +0000 vti6: Properly adjust vti6 MTU from MTU of lower device bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1710f0dc600000 start commit: 0b412605 Merge tag 'drm-fixes-for-v4.16-rc8' of git://peop.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=8addcf4530d93e53 dashboard link: https://syzkaller.appspot.com/bug?extid=a7db9083ed4017ba4423 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14bf273b800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=117045d3800000 If the result looks correct, please mark the bug fixed by replying with: #syz fix: vti6: Properly adjust vti6 MTU from MTU of lower device For information about bisection process see: https://goo.gl/tpsmEJ#bisection