From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 28D487346D for ; Fri, 15 Nov 2024 23:03:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731711785; cv=none; b=hBLEL1K96YsL87EtzzU+vaoEwRs5IB/Z00RLueCBDR50C6e3MmRUaC4cw1S862pz1sTccQrxjHLSlb0gwezAkaCNtQV9fU7BkmwPyVczqcugscZep5Q4h23Sx0hi2mP1VqAuycvP1S8aptDsj7K/wy4pDbaX4Jw8nIE6ttpzW5I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731711785; c=relaxed/simple; bh=t2XiTNbL3PGInfYAp4yZu+eB8efE/gjHGgnsP2+qp74=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=LocuCNoDwnvtmdNMeif4mPjxSEqnumOfR4mFnoEYxkgAnks51xbpiQgq5+TkyuNycZPv19AX7f6zpkwzdlHedkt+G7SHCeqQzCTET7vLZvSF84o5WiO3056BY7oUbc7jkMaZZrUVROWDlwj4gYpEUMwyB7j47J0okMpXpKLKIlo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-83abb901672so241583939f.3 for ; Fri, 15 Nov 2024 15:03:03 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731711783; x=1732316583; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=5hiwjEO+AOrBwenkKAdfZyDGvRKtEogqhlLWQFYfXE8=; b=RYclv1cleuHLXVS3wtDgVBmT6R1K03hv6TCEj+m5F5RDV35xCA/54DTaRXfqURPOam 3pAQtcz61I5CP8dA75KWuf4v4gBqbI62wC423+Focx5WiEkW/jxTRp2MZ0spfoShkcxo tih4hJ42/vABQjNHW14xspQQtZJVFiao90G5RMfFvjzegyNUyhLE1Hc2gB/VxsE2tIfS Db92euJ8M02x8D+joaP0R9grIa3lGFMT4tDNFMOfIRKPBDbMiZmTlS3G9X8QAS15KHiT 5EAkUKY3h8JRR6mzmTB1vte1QGJeEnIKIuQRzGUFUb9wQMSaUTeU8ecBCxopVZKRR0Fx 7+kg== X-Forwarded-Encrypted: i=1; AJvYcCVevl0a2rcqpFuxbqU4UMvw3BThM5zARyJu874uyRWanr24UJlFowkyKZxxkT+tcUTEmD1Y+zw=@vger.kernel.org X-Gm-Message-State: AOJu0YzvEUwM92PBiSbGcGZSdMJT9zEHncpgZrlUukIa4Fqq7T4y5/bH 6H3PFPzI87gh7eU63K+uRENEfia7ib7YcU46FPPlF7nxEF4cUyTjlEkauZmYVLh92Cp+B+sIoqi c6OJ1i3LgMK8A7KN9uULv+dSfDKLRSzFuMuEHl96odd/MUdAC7lqmbfQ= X-Google-Smtp-Source: AGHT+IGCWQb2OFq+eRkFN5Be/l2kdINtmGhVA25ziCy7onrqtTIY+y47XSwL8lIK4nziRpWINhyZ+hSokuOwnLRypykFMAjGs49x Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:a:b0:3a6:ac17:13e4 with SMTP id e9e14a558f8ab-3a748079fc1mr51440345ab.18.1731711783356; Fri, 15 Nov 2024 15:03:03 -0800 (PST) Date: Fri, 15 Nov 2024 15:03:03 -0800 In-Reply-To: <0000000000005423e30621f745ff@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6737d327.050a0220.57553.0040.GAE@google.com> Subject: Re: [syzbot] [net?] WARNING in l2tp_exit_net From: syzbot To: davem@davemloft.net, edumazet@google.com, guohui.study@gmail.com, horms@kernel.org, jchapman@katalix.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tparkin@katalix.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 73d33bd063c4cfef3db17f9bec3d202928ed8631 Author: James Chapman Date: Fri Aug 23 14:22:57 2024 +0000 l2tp: avoid using drain_workqueue in l2tp_pre_exit_net bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1306eb5f980000 start commit: ccb35037c48a Merge branch 'net-lan969x-add-vcap-functional.. git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=1086eb5f980000 console output: https://syzkaller.appspot.com/x/log.txt?x=1706eb5f980000 kernel config: https://syzkaller.appspot.com/x/.config?x=a9d1c42858837b59 dashboard link: https://syzkaller.appspot.com/bug?extid=332fe1e67018625f63c9 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=136a36a7980000 Reported-by: syzbot+332fe1e67018625f63c9@syzkaller.appspotmail.com Fixes: 73d33bd063c4 ("l2tp: avoid using drain_workqueue in l2tp_pre_exit_net") For information about bisection process see: https://goo.gl/tpsmEJ#bisection