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=-9.0 required=3.0 tests=BAYES_00,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 EC29DC433FC for ; Mon, 20 Jul 2020 07:08:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D7EB121775 for ; Mon, 20 Jul 2020 07:08:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727805AbgGTHII (ORCPT ); Mon, 20 Jul 2020 03:08:08 -0400 Received: from mail-io1-f72.google.com ([209.85.166.72]:39235 "EHLO mail-io1-f72.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727780AbgGTHIG (ORCPT ); Mon, 20 Jul 2020 03:08:06 -0400 Received: by mail-io1-f72.google.com with SMTP id r19so10680610iod.6 for ; Mon, 20 Jul 2020 00:08:06 -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=hf+kwcKJaoB2O2XzZ62VTTEDTpLPt+1+yZptVyrXu3Y=; b=qF2ujNmay7zEaVrus3TpMWHNu0TOsQdNJNd8JRoDPB4cHJEDkQni88COJJaGFjiIPF Ht7KLwycBC+XqkfTYQu8qPiJy8PhjeEeCTFPAQOwHMNHZAticu2SP8WrGKq2PQUkuRTp 9a0KXVK4U2HQ2a4gVffTDSGb2X2XNrjbNs4rU4oAuA/lVvOvlI9Z2GtRK/Xq5LSJcIBM xheGU7WgpSN79Da+zYIih7OP+5HPsd9itMElN1FwhY9QikC4kNt8KIKrRGDBgU45q4V4 xc5k2hNEFeeW6Ox6HoBZBG7sG0PzhqQrMiTgsYPA5aSDuKWpPZkV8mXaOEwT9SKQc+2y z1Xg== X-Gm-Message-State: AOAM533AEE4T6fJItVGlLIb1rRgF6r+jBW8g+htVMwjeIo8vxtKuMMUa 9hfHlUKf+nBWyLxlIq7dAHVKAF0zj/unSc31qZ80XB1vS7oe X-Google-Smtp-Source: ABdhPJxo/yL9uQtzaZRRNF+0FqYGONLLfW8cud6VWFvmxM1Yav75gunkUZy2TqikI8tHCMeJFCpPmRIsXPeM+7wwYZcGZeKzh4Ah MIME-Version: 1.0 X-Received: by 2002:a05:6638:2601:: with SMTP id m1mr17777548jat.141.1595228885931; Mon, 20 Jul 2020 00:08:05 -0700 (PDT) Date: Mon, 20 Jul 2020 00:08:05 -0700 In-Reply-To: <0000000000005d946305a9f5d206@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000014dc1805aada2bea@google.com> Subject: Re: INFO: rcu detected stall in sock_close (3) From: syzbot To: Markus.Elfring@web.de, davem@davemloft.net, fweisbec@gmail.com, hdanton@sina.com, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, mingo@kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tipc-discussion@lists.sourceforge.net, tuong.t.lien@dektech.com.au, ying.xue@windriver.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 5e9eeccc58f3e6bcc99b929670665d2ce047e9c9 Author: Tuong Lien Date: Wed Jun 3 05:06:01 2020 +0000 tipc: fix NULL pointer dereference in streaming bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16c5517d100000 start commit: 7cc2a8ea Merge tag 'block-5.8-2020-07-01' of git://git.ker.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=15c5517d100000 console output: https://syzkaller.appspot.com/x/log.txt?x=11c5517d100000 kernel config: https://syzkaller.appspot.com/x/.config?x=183dd243398ba7ec dashboard link: https://syzkaller.appspot.com/bug?extid=4168fa4c45be33afa73c syz repro: https://syzkaller.appspot.com/x/repro.syz?x=112223b7100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=154793a3100000 Reported-by: syzbot+4168fa4c45be33afa73c@syzkaller.appspotmail.com Fixes: 5e9eeccc58f3 ("tipc: fix NULL pointer dereference in streaming") For information about bisection process see: https://goo.gl/tpsmEJ#bisection