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=-4.0 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 DDD6EC433E9 for ; Thu, 3 Sep 2020 15:33:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A8D8A206D4 for ; Thu, 3 Sep 2020 15:33:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728461AbgICPdI (ORCPT ); Thu, 3 Sep 2020 11:33:08 -0400 Received: from mail-io1-f69.google.com ([209.85.166.69]:45045 "EHLO mail-io1-f69.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726990AbgICPdG (ORCPT ); Thu, 3 Sep 2020 11:33:06 -0400 Received: by mail-io1-f69.google.com with SMTP id l8so2292214ioa.11 for ; Thu, 03 Sep 2020 08:33:06 -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=NOQoaI8MmUjTmRPzTkswBuSyXsa4TobuGT61RtxiEdk=; b=eQGY47x1UsB/HqsWImRfIVIjKMZaz+wR1clZIbdFTz/y2iEHGobJEhfa2ijHmrNBur 86PWBVzwG3vq0+lne/oKq/N/pUYjCGPtujQwoFdTDH9Ddl+uSpWWm52degc3Bz1aaOFa uLjahBHfN3In+qa3lxkZi9G0lJv3GPVxRk/dPlw9h9jfeOWMvXXmoVKGnVppIBOXo+bQ AtMFMvcKrDzekfhA0wtwo5kXWctCrDzoceCeOpYMxRWRJElYt2xWgXWPPFOW3AyJ5KgB rxCOGg8h29xzZptMO60iQbLCJ6TZl7zZFzFsjB2LEyi3onnDnIzWjz+UHZKK08yZwOt0 nSLQ== X-Gm-Message-State: AOAM531uZWeQLjXXgtDwEjOcu3X/0poNlMi3T2NPwhkUfeba2coPpd/F jVbQyXX3USoGCDpa/YKCxRrhdkbO90qNuw1hIp/ufrikEAh1 X-Google-Smtp-Source: ABdhPJy/G9JyxC5525578EvfqwJfRzuzFC+hyFWJWTSwCgZXoOjSHHNx7mjShsCPPxJCqgHLR1nJSK3dV9yrHHRIfOtDrEoegrlw MIME-Version: 1.0 X-Received: by 2002:a6b:6016:: with SMTP id r22mr3664364iog.42.1599147186374; Thu, 03 Sep 2020 08:33:06 -0700 (PDT) Date: Thu, 03 Sep 2020 08:33:06 -0700 In-Reply-To: <00000000000014fd1405ae64d01f@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000fcd01005ae6a77e7@google.com> Subject: Re: INFO: task hung in tcf_ife_init From: syzbot To: davem@davemloft.net, eric.dumazet@gmail.com, jhs@mojatatu.com, jiri@mellanox.com, jiri@resnulli.us, kuba@kernel.org, linux-kernel@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, vladbu@mellanox.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org syzbot has bisected this issue to: commit 4e8ddd7f1758ca4ddd0c1f7cf3e66fce736241d2 Author: Vlad Buslov Date: Thu Jul 5 14:24:30 2018 +0000 net: sched: don't release reference on action overwrite bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=14ae08e9900000 start commit: 1996cf46 net: bcmgenet: fix mask check in bcmgenet_validat.. git tree: net final oops: https://syzkaller.appspot.com/x/report.txt?x=16ae08e9900000 console output: https://syzkaller.appspot.com/x/log.txt?x=12ae08e9900000 kernel config: https://syzkaller.appspot.com/x/.config?x=a0437fdd630bee11 dashboard link: https://syzkaller.appspot.com/bug?extid=80e32b5d1f9923f8ace6 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=161678e1900000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=14f826d1900000 Reported-by: syzbot+80e32b5d1f9923f8ace6@syzkaller.appspotmail.com Fixes: 4e8ddd7f1758 ("net: sched: don't release reference on action overwrite") For information about bisection process see: https://goo.gl/tpsmEJ#bisection