From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 B7A5226461E for ; Tue, 8 Apr 2025 07:41:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744098088; cv=none; b=O53Ni2x9a+ADrjN/e7TxiEoTn2Xe47RNkCxSPEe1ABpvXLlf2X5o7X9w8BvOyLas+IkAnD6hbu9GqGiCFou3b6IT6fVGKLQvh9IuMPH/lOYPbKVBKqpCNYQ3EVTq+ZDaUjXxW/FCac9vZJ9BKnOhkPvKFbSjJtJH4K82D1vaT8c= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744098088; c=relaxed/simple; bh=c7DCdLXbOqDr50W9/qA7Md2fmFxz0hPGsDzruBo5d3U=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Awh9bam9rkgD2u62ozElskXD0txOO2EsS3UJHIByiWKpND/pY/pP3ZLFpRjnsxg+SOIrU5tFAIy62UY3WSsWXtPSV97Tom2a+fIYWXfYW42jcfHTMOsZOZKOghJGb2lnnT3MQ/ni3ejOfshWNskZBnrBz3P5HD7GoNQxl4qSX5w= 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=209.85.166.207 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-il1-f207.google.com with SMTP id e9e14a558f8ab-3d5a9e7dd5aso55729175ab.3 for ; Tue, 08 Apr 2025 00:41:26 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744098086; x=1744702886; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=D9nvmIGS/pjAS2D5FId0VkYzyKtpxKn9WhfgUHy7ueM=; b=TZROkb/a/CWdDEKhF0gsnos8RBLOOkBzhG+ZoeTm4ncsqr6fCoEfGIge/8von/dius kxX67BjY9PWfBGKWkUVwkeCgFI7xDBT3kvsEt/0OFD/kH8Ngfvy5H6G9EJBL2NJaw9AL 03tb05uFjVNEYVBU3I4fF+3zvU7PKpC5jzlVlVi4ZhileV2g2ialjN4vl8dunnfZshqY 0dZzlAztGrSvPf3lQ9zqGMG79sfJJaUK5GSJ6GUIB+/8TZSsVSLtUMNlzRgopjcuH0OY VjrIMwylXiRtmPEX7WxUInQMVNNL5w8BT5OEbTmwn0HtnL768qyySH2gwVNOH1JCYbdr L1wA== X-Forwarded-Encrypted: i=1; AJvYcCUfi+rVvQmuLH9xQDIunaiEHpDsDlWL+GBX1RnVZlj9mFM4J5AAiGwSENoe8q67z5d94X1HdR6+kWVl3/s=@vger.kernel.org X-Gm-Message-State: AOJu0YxhbzWbXV+pLsttgEzSAjbVkertb1vthpYEUm1DXbRksSqWXWIW K9pGYFKqzGoXoeZeOd+96x0zZxwrPz4PrRSFCkNDNGpE0ho9lDsXbrXqh8CnqcWNnx30CnMTGP3 s9faMkxrEqW89OueNDBJbv4cU+q90kuRWx7AnspIJqbDnK3c+r5sFCM4= X-Google-Smtp-Source: AGHT+IFZ2eHvFY/2Wu1GWjf1i7Xo7TQNwvjqzZ1pDdaqmGpIuMTl8L+5R8VHp4cPz1mlzRR1Q3tpXamKc3qegXbFgf9LLqtrtjyb Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2602:b0:3d3:fa0a:7242 with SMTP id e9e14a558f8ab-3d6e53473acmr150443345ab.9.1744098085699; Tue, 08 Apr 2025 00:41:25 -0700 (PDT) Date: Tue, 08 Apr 2025 00:41:25 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67f4d325.050a0220.396535.0558.GAE@google.com> Subject: [syzbot] [net?] WARNING in __linkwatch_sync_dev From: syzbot To: davem@davemloft.net, edumazet@google.com, horms@kernel.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 7702d0130dc0 Add linux-next specific files for 20250408 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=15fe8070580000 kernel config: https://syzkaller.appspot.com/x/.config?x=91edf513888f57d7 dashboard link: https://syzkaller.appspot.com/bug?extid=48c14f61594bdfadb086 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0603dd3556b9/disk-7702d013.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/d384baaee881/vmlinux-7702d013.xz kernel image: https://storage.googleapis.com/syzbot-assets/1ac172735b6c/bzImage-7702d013.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+48c14f61594bdfadb086@syzkaller.appspotmail.com ------------[ cut here ]------------ RTNL: assertion failed at ./include/net/netdev_lock.h (56) WARNING: CPU: 1 PID: 2971 at ./include/net/netdev_lock.h:56 netdev_ops_assert_locked include/net/netdev_lock.h:56 [inline] WARNING: CPU: 1 PID: 2971 at ./include/net/netdev_lock.h:56 __linkwatch_sync_dev+0x30d/0x360 net/core/link_watch.c:279 Modules linked in: CPU: 1 UID: 0 PID: 2971 Comm: kworker/u8:8 Not tainted 6.15.0-rc1-next-20250408-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Workqueue: bond0 bond_mii_monitor RIP: 0010:netdev_ops_assert_locked include/net/netdev_lock.h:56 [inline] RIP: 0010:__linkwatch_sync_dev+0x30d/0x360 net/core/link_watch.c:279 Code: 7c fe ff ff e8 f4 63 cc f7 c6 05 83 28 53 06 01 90 48 c7 c7 60 5c 51 8d 48 c7 c6 8a 9b 67 8e ba 38 00 00 00 e8 04 6b 8b f7 90 <0f> 0b 90 90 e9 4d fe ff ff 89 d9 80 e1 07 38 c1 0f 8c 19 fd ff ff RSP: 0018:ffffc9000b767710 EFLAGS: 00010246 RAX: bb6ea754fa006300 RBX: 0000000000000000 RCX: ffff888030979e00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff81824ed2 R09: 1ffffffff20c01c6 R10: dffffc0000000000 R11: fffffbfff20c01c7 R12: 0000000000000000 R13: dffffc0000000000 R14: ffff88805d768008 R15: ffff88805d768000 FS: 0000000000000000(0000) GS:ffff888125089000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f85e8c4df98 CR3: 000000006a050000 CR4: 00000000003526f0 DR0: 0000000000000099 DR1: 0000000000000000 DR2: 000000000000000b DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: ethtool_op_get_link+0x15/0x60 net/ethtool/ioctl.c:63 bond_check_dev_link+0x1fb/0x4b0 drivers/net/bonding/bond_main.c:864 bond_miimon_inspect drivers/net/bonding/bond_main.c:2734 [inline] bond_mii_monitor+0x49d/0x3170 drivers/net/bonding/bond_main.c:2956 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319 worker_thread+0x870/0xd50 kernel/workqueue.c:3400 kthread+0x7b7/0x940 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup