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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 459C3C433F5 for ; Thu, 10 Feb 2022 09:37:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238696AbiBJJhY (ORCPT ); Thu, 10 Feb 2022 04:37:24 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:56996 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238259AbiBJJhX (ORCPT ); Thu, 10 Feb 2022 04:37:23 -0500 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2583810B4 for ; Thu, 10 Feb 2022 01:37:25 -0800 (PST) Received: by mail-il1-f198.google.com with SMTP id b3-20020a056e020c8300b002be19f9e043so3561335ile.13 for ; Thu, 10 Feb 2022 01:37:25 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=WMAa1QK9Kxhsy8/kVs+uPN7XYVttZNgIOYjzv5RISB8=; b=pwuYwlymrS/4XuGtUmUfmXhni1PC1Z6sWlykPYkmrmBH6hpkAuRLCpmrFjSfnGYyx8 wSMYUPi7rlrfj5P0KOQsSxvvHD4S8qsHyOxFY6p/raK2dHpN4hXPdlJUmlEmr70vJEeY rnXZuZcXfWmnHI3QEwJU7GG8FEKf9J9FYP5StZWoKXBZOAw3Fel5ZRO1OYzN+flZIIet 20e/lZh6+lJTGgkCo0uSrMYiX3iXXPExlpIi9q6L920f+4BRWqAV4OBE68nD9nwFXBZi b/bsoMqMkRNVLB+NfbIIhlIbrsUQ7Swo7NtuOssf2qLVkA1zAQ9bNIZyAkyzVZGXxpu4 2RfQ== X-Gm-Message-State: AOAM532fpUfSHe1cLgdUXWN2gXwMXWEe6Mm2UKGKHkBD3w6AcFdqiDY2 CckBjghyet0ZayCdSoY1JJJaGI+ymRalD+PSpy2GKjxLWQqN X-Google-Smtp-Source: ABdhPJxlrs0tfruePAiedbMxqBIY+mk2PNpErSRsdCCar4qxDMSvU2QoKxJYzkZUwwESzwTp/eQucdtG2jk87AYhZKvF2bcIcwBV MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a21:: with SMTP id g1mr1474902ile.154.1644485844491; Thu, 10 Feb 2022 01:37:24 -0800 (PST) Date: Thu, 10 Feb 2022 01:37:24 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000009962dc05d7a6b27f@google.com> Subject: [syzbot] WARNING in mroute_clean_tables From: syzbot To: davem@davemloft.net, dsahern@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, yoshfuji@linux-ipv6.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: e5313968c41b Merge branch 'Split bpf_sk_lookup remote_port.. git tree: bpf-next console output: https://syzkaller.appspot.com/x/log.txt?x=1109f758700000 kernel config: https://syzkaller.appspot.com/x/.config?x=c40b67275bfe2a58 dashboard link: https://syzkaller.appspot.com/bug?extid=a7c030a05218db921de5 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a7c030a05218db921de5@syzkaller.appspotmail.com ------------[ cut here ]------------ RTNL: assertion failed at net/core/dev.c (10367) WARNING: CPU: 0 PID: 29585 at net/core/dev.c:10367 unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Modules linked in: CPU: 0 PID: 29585 Comm: syz-executor.4 Not tainted 5.16.0-syzkaller-11655-ge5313968c41b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:unregister_netdevice_many+0x1246/0x1850 net/core/dev.c:10367 Code: 0f 85 9b ee ff ff e8 59 f1 4a fa ba 7f 28 00 00 48 c7 c6 00 90 ae 8a 48 c7 c7 40 90 ae 8a c6 05 0e a1 51 06 01 e8 3c 8a d8 01 <0f> 0b e9 70 ee ff ff e8 2e f1 4a fa 4c 89 e7 e8 c6 22 59 fa e9 ee RSP: 0018:ffffc90003f976d8 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815fa058 RDI: fffff520007f2ecd RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001 R10: ffffffff815f3dbe R11: 0000000000000000 R12: ffffc90003f97850 R13: dffffc0000000000 R14: ffffc90003f97748 R15: ffff888075174000 FS: 00007ff7a83c1700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f76931c2fc0 CR3: 000000006a1c3000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mroute_clean_tables+0x271/0xb50 net/ipv4/ipmr.c:1282 ipmr_free_table net/ipv4/ipmr.c:411 [inline] ipmr_rules_init net/ipv4/ipmr.c:259 [inline] ipmr_net_init net/ipv4/ipmr.c:3059 [inline] ipmr_net_init+0x3f0/0x4e0 net/ipv4/ipmr.c:3051 ops_init+0xaf/0x470 net/core/net_namespace.c:140 setup_net+0x54f/0xbb0 net/core/net_namespace.c:331 copy_net_ns+0x318/0x760 net/core/net_namespace.c:475 create_new_namespaces+0x3f6/0xb20 kernel/nsproxy.c:110 copy_namespaces+0x391/0x450 kernel/nsproxy.c:178 copy_process+0x2e15/0x7310 kernel/fork.c:2167 kernel_clone+0xe7/0xab0 kernel/fork.c:2555 __do_sys_clone+0xc8/0x110 kernel/fork.c:2672 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7ff7a9a4c059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff7a83c1118 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ff7a9b5ef60 RCX: 00007ff7a9a4c059 RDX: 0000000020000080 RSI: 0000000020000050 RDI: 0000000046000080 RBP: 00007ff7a9aa608d R08: 0000000020000100 R09: 0000000020000100 R10: 00000000200000c0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffff1377c7f R14: 00007ff7a83c1300 R15: 0000000000022000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.