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=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 32883C432C0 for ; Thu, 28 Nov 2019 10:30:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1328121774 for ; Thu, 28 Nov 2019 10:30:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726655AbfK1KaE (ORCPT ); Thu, 28 Nov 2019 05:30:04 -0500 Received: from mail-io1-f69.google.com ([209.85.166.69]:54759 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726252AbfK1KaD (ORCPT ); Thu, 28 Nov 2019 05:30:03 -0500 Received: by mail-io1-f69.google.com with SMTP id f15so2452203iol.21 for ; Thu, 28 Nov 2019 02:30:01 -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=1y+8h0adrUwE7n/UFRdlXn6lrWhJARMArZmc7WSZSbo=; b=g5EUClrUosSYfoRIdyU2BEplkyTqH8qVaM6SS9uK59HZ4mNBWptbBYeTOgHpUNM9zM go0ruez7sdaJwvQbsG5hd4HryquPA24W31CE0/zvIZjbxp/UyLmwPLjk1mp07Dqos+DD CewSISiF5XrmzrN4yISfV4R2lAzu4BJi81jQ3isrouNQCLGwaKw3Ig7DReOjl1pX8aZC UMsBSfF/geN+W4JtqpXiv5+OyuP+2Bv6qPjACeoalH4W0tNuiSWE/0WWe1+TVPedjq3+ KhczzwGelDxHy1Tc+GsXkf8kwkWZuFBh/yl5alxGkEoKYn6XLhTbucPUcu6ABNKUMNGH rEJg== X-Gm-Message-State: APjAAAUunMzcWq1yKksCh+pKJtp8CasTw/tqycrEpaS5WeWPRgjjIpX8 ds+tSWT0BVNzMTa7HDZ1jGhw0dbyjR5hHFSCsy3KEtdLMRkT X-Google-Smtp-Source: APXvYqw2P2kVfRCOmAlhCFdPp4pODsE7Gp3HDeRuvO52RgpRAmsfSGU8ZjG8MAIR7k8Tm/JF3bkAGnvJEgGs1eN+T2lG1oJs2xsz MIME-Version: 1.0 X-Received: by 2002:a02:cd31:: with SMTP id h17mr407619jaq.94.1574937000680; Thu, 28 Nov 2019 02:30:00 -0800 (PST) Date: Thu, 28 Nov 2019 02:30:00 -0800 In-Reply-To: <0000000000003872fd0568da185f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000007825cd05986598e6@google.com> Subject: Re: KASAN: use-after-free Read in ccid2_hc_tx_packet_recv From: syzbot To: alexey.kodanev@oracle.com, coreteam@netfilter.org, davem@davemloft.net, dccp@vger.kernel.org, dsahern@gmail.com, edumazet@google.com, fw@strlen.de, gerrit@erg.abdn.ac.uk, kadlec@blackhole.kfki.hu, keescook@chromium.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, soheil@google.com, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this bug to: commit 3fa6f616a7a4d0bdf4d877d530456d8a5c3b109b Author: David Ahern Date: Mon Aug 7 15:44:17 2017 +0000 net: ipv4: add second dif to inet socket lookups bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=141e882ae00000 start commit: b5069438 Merge branch 'stable/for-linus-4.17' of git://git.. git tree: upstream final crash: https://syzkaller.appspot.com/x/report.txt?x=161e882ae00000 console output: https://syzkaller.appspot.com/x/log.txt?x=121e882ae00000 kernel config: https://syzkaller.appspot.com/x/.config?x=982e2df1b9e60b02 dashboard link: https://syzkaller.appspot.com/bug?extid=554ccde221001ab5479a syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1363ccb7800000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1272e2b7800000 Reported-by: syzbot+554ccde221001ab5479a@syzkaller.appspotmail.com Fixes: 3fa6f616a7a4 ("net: ipv4: add second dif to inet socket lookups") For information about bisection process see: https://goo.gl/tpsmEJ#bisection