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=-3.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 2F540C2D0A3 for ; Sun, 1 Nov 2020 05:40:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id EB07322246 for ; Sun, 1 Nov 2020 05:40:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725905AbgKAFkN (ORCPT ); Sun, 1 Nov 2020 01:40:13 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:46622 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725783AbgKAFkM (ORCPT ); Sun, 1 Nov 2020 01:40:12 -0400 Received: by mail-il1-f198.google.com with SMTP id z8so7893452ilh.13 for ; Sat, 31 Oct 2020 22:40:11 -0700 (PDT) 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=23OyltOe5EBhl8ArboyuBXKjLdoO9g+XhjDrucC98XU=; b=N4T7MKmk8EQX4mifeHyQd8qecKchY/YZuntAPTGvVWenuxO5DVK23yY4hrhgnii8Aq evyqVyG0EwGsUJUYskV80SJFdIjpqo3GdAr+RcLfWqiPR75zSadiMQPYTOxfhgDnDmiw BpKVlKak8UV5Km6XQFHPGjCROfUB3tvO2yxx4HiiCH7pE36JNqa4zM4VzHQU7gszRtSh p5Wy7xTrh3depIMxGhM8Y/nLEQBzvQ3YjRbLJcMOnstYyAeqdYs1FZftyGulG97TSNIo kxB393BdVFJ+vjlHAiUJXRdVr2pg8wBN09dgD3TeMG0nMkgy1Z0SegN13GaQN76KRcE9 9mCQ== X-Gm-Message-State: AOAM533hnZp6Fixbpe36pLveECK6lA7/iwGAA+2yErDd3O7btlZl/8J0 ORzB7OZfHeGYZEwAmWBnXcYQJu/iWRD+DbNmfn4wPwB8stKh X-Google-Smtp-Source: ABdhPJzop3BnuUmDv/RjS8YKnkYc3J7Hlabiq8WoaIZLlZjQOVQar2LUCPdvTKih8EIFknDVrPx1Mz5a6Yinm5bdbKguNde8y9Ej MIME-Version: 1.0 X-Received: by 2002:a05:6638:24cc:: with SMTP id y12mr7386176jat.144.1604209211179; Sat, 31 Oct 2020 22:40:11 -0700 (PDT) Date: Sat, 31 Oct 2020 22:40:11 -0700 In-Reply-To: <00000000000013259505a931dd26@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002d865a05b3051076@google.com> Subject: Re: KASAN: use-after-free Read in decode_session6 From: syzbot To: davem@davemloft.net, herbert@gondor.apana.org.au, kuba@kernel.org, linux-kernel@vger.kernel.org, lucien.xin@gmail.com, marcelo.leitner@gmail.com, netdev@vger.kernel.org, steffen.klassert@secunet.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this issue to: commit bcd623d8e9fa5f82bbd8cd464dc418d24139157b Author: Xin Long Date: Thu Oct 29 07:05:05 2020 +0000 sctp: call sk_setup_caps in sctp_packet_transmit instead bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14df9cb8500000 start commit: 68bb4665 Merge branch 'l2-multicast-forwarding-for-ocelot-.. git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=16df9cb8500000 console output: https://syzkaller.appspot.com/x/log.txt?x=12df9cb8500000 kernel config: https://syzkaller.appspot.com/x/.config?x=eac680ae76558a0e dashboard link: https://syzkaller.appspot.com/bug?extid=5be8aebb1b7dfa90ef31 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11286398500000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=11bbf398500000 Reported-by: syzbot+5be8aebb1b7dfa90ef31@syzkaller.appspotmail.com Fixes: bcd623d8e9fa ("sctp: call sk_setup_caps in sctp_packet_transmit instead") For information about bisection process see: https://goo.gl/tpsmEJ#bisection