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 4E89CC4742C 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 12D7D22260 for ; Sun, 1 Nov 2020 05:40:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725907AbgKAFkN (ORCPT ); Sun, 1 Nov 2020 01:40:13 -0400 Received: from mail-il1-f199.google.com ([209.85.166.199]:39939 "EHLO mail-il1-f199.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725681AbgKAFkM (ORCPT ); Sun, 1 Nov 2020 01:40:12 -0400 Received: by mail-il1-f199.google.com with SMTP id g14so7864229ilr.7 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=ox6BbDJIZ7oL1O1/F9XKjjEAr/+yLBFLTEI65Fw6tMO4VZ4SQVp6/vqmFi9ZbiZK4W BfBBufkuZM3zGI2uibE4I8K2ert9Jpm8Gb+Nk4le/u9QJ4bZwpl6k3y4YcWTO1SQxPjf aHI6r7D08wbTvaPMB6vg0BCv+jqJJIFZ/TLzwLl0q1Z5vqhyS5lILEy6ydgdVvPcXXS/ iFb+vhijDOUSqBAtezhQoDMnFaE5AQMX68YqKrQj6bbDJNDkYoNnR7ShsS61yZe5qgMc 5E00anAzTwSByfGGALZcRlJNRZUFKS8xZcd2y2HDKMXy3DsIicLpBHAYx9cI/C5RMHVc fSZQ== X-Gm-Message-State: AOAM531fOQpCg+79uqEMs4cqME759eB1Qt3Yp6EwTafzUEddRv2vi8dt R50P0wya3IlIdCSKt4aw5QGT4A/duWtvv/4aPaoaow/VRjFP 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: linux-kernel@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