From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 6CEF612E7F for ; Sat, 26 Oct 2024 15:16:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729955804; cv=none; b=jT2iKyk2x9VzUA338ETBMkmcGv83xCI7gOEkvyUm3Lt4zKre+TdXCUB6eUheWkNNQayC7jkT7dtyGX2z+Q4ZX9NoE+2zSGqiQNkBEU8ysOxJpIdMl17xqq7AAYaEa+D+n6aihc3dOHSfrmo4YBaCiOiEwQRGciQZh+Bwp76RKPw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729955804; c=relaxed/simple; bh=+nz5RGliBDXdyGlTPnx5tEoP5B634LEwMtbaEY2hKtI=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=SdEQUq9DvVuV/MKEJ4reqWvFFLfXqpiVpkcGmWlVwX2XyBKAMlyR4meM12JpDxRchYR6MYjS03GNeWjAbVFAVjYQ+653P5jY7zMKnwfD5yk/3LMRqxx5znJPBy0ZiysLrJ5iYNmDjfat0hnhoGh2d3UPY5IGGnInajxdaR/T2L0= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3a3c5a6c5e1so27858615ab.2 for ; Sat, 26 Oct 2024 08:16:42 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1729955801; x=1730560601; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=zj/TXT0peYcbVWtL1V2i3O4IbyqgcXzUK4CK4R5SwBg=; b=KBOGhOio47s/drGzxnIcB/sn1eVtTo1+3Qx//uOH2A0Mdo3QxNXoa1XSs6A6QOHnGt gWjZxkCiqQXQ1/bHS+wLtjdWegYoqXWPlSDzBQLJTtqp99vanly8etrixhCw9ACMbaH5 MxIp/iui7/mbg17uX7LmQumkgZWO6niYQMXBLq4NdSl8OJSDGJrxc4EbMUtcgigvJzY0 ZNPvV2Y15RmDDg0MmZUk+hngwB6+eapaOpRiKviDPFmgBGIKsY5WRuxVLMzTYu7unQpz f4BU7utfZPop67V05ixR5h7Fg3OAqhE1PVqtD//+svF4ZqrZH+kJgYCxffHEX50K/+dP m1AA== X-Forwarded-Encrypted: i=1; AJvYcCWdzkfqt7pm4cFh3tmXPnf9tbE9Z38D/uiI4qttnrKt6MYseiPVS++m2XdFkrfR2i9JAgBfll8=@vger.kernel.org X-Gm-Message-State: AOJu0YwhD85413XYc8KdGmNo4rFAdBZuKo687Bvaimcqe3XuRGg6AdEh hGE2MvdadijPMYJmykpK+PUAvkueoSJUhEqiZBiP/gSS3cvq5IQty62i6u6LEh9PRiGKXN3H8Ht dbhjlRw7W1+cLt4aAxBml8UXav+hPxybHKPlPrqfu9UxaAFHjvThxYwQ= X-Google-Smtp-Source: AGHT+IHU2ZGBOsrvtWpUYLXvP+7OqfG36dutsBmc0AnypkK3ZbSK85fy3TshdFu4FXZLCyt5EqUN+B0DjlBjv7vUG/I23FpaqTjf Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1d85:b0:3a3:445d:f711 with SMTP id e9e14a558f8ab-3a4ed1c2ea6mr26731905ab.0.1729955801683; Sat, 26 Oct 2024 08:16:41 -0700 (PDT) Date: Sat, 26 Oct 2024 08:16:41 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <671d07d9.050a0220.2fdf0c.022b.GAE@google.com> Subject: [syzbot] [net?] WARNING in rtnl_dellink (4) From: syzbot To: davem@davemloft.net, edumazet@google.com, 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: 6d858708d465 Merge branch 'net-ethernet-freescale-use-pa-t.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=15ce50a7980000 kernel config: https://syzkaller.appspot.com/x/.config?x=e7f0cac6eaefe81d dashboard link: https://syzkaller.appspot.com/bug?extid=e1153ace01ff073581b7 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/88c678a36ec8/disk-6d858708.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/b19b4fbbd593/vmlinux-6d858708.xz kernel image: https://storage.googleapis.com/syzbot-assets/18fef9c3fe20/bzImage-6d858708.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+e1153ace01ff073581b7@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 31309 at net/core/dev.c:9526 dev_xdp_uninstall net/core/dev.c:9526 [inline] WARNING: CPU: 1 PID: 31309 at net/core/dev.c:9526 unregister_netdevice_many_notify+0x18c8/0x1da0 net/core/dev.c:11468 Modules linked in: CPU: 1 UID: 0 PID: 31309 Comm: syz.4.12366 Not tainted 6.12.0-rc2-syzkaller-00631-g6d858708d465 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:dev_xdp_uninstall net/core/dev.c:9526 [inline] RIP: 0010:unregister_netdevice_many_notify+0x18c8/0x1da0 net/core/dev.c:11468 Code: 00 f8 90 0f 0b 90 e9 4f ff ff ff e8 42 25 00 f8 90 0f 0b 90 eb 9d e8 37 25 00 f8 90 0f 0b 90 e9 e8 f1 ff ff e8 29 25 00 f8 90 <0f> 0b 90 e9 5a f3 ff ff e8 1b 25 00 f8 90 0f 0b 90 e9 cd f4 ff ff RSP: 0018:ffffc9000efd6fc0 EFLAGS: 00010283 RAX: ffffffff8994c227 RBX: 00000000ffffffa1 RCX: 0000000000040000 RDX: ffffc9000a0a1000 RSI: 0000000000000dad RDI: 0000000000000dae RBP: ffffc9000efd71b0 R08: ffffffff8994b57d R09: ffffffff8667d4c8 R10: 0000000000000004 R11: ffff8880619cda00 R12: ffffc90004cdd000 R13: 1ffff1100f056986 R14: ffff8880782b4c30 R15: ffff8880782b4c28 FS: 00007fe4187436c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5ea6d0cfce CR3: 0000000027e0a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rtnl_delete_link net/core/rtnetlink.c:3355 [inline] rtnl_dellink+0x50b/0x8d0 net/core/rtnetlink.c:3407 rtnetlink_rcv_msg+0x73f/0xcf0 net/core/rtnetlink.c:6749 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline] netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901 sock_sendmsg_nosec net/socket.c:729 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:744 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607 ___sys_sendmsg net/socket.c:2661 [inline] __sys_sendmsg+0x292/0x380 net/socket.c:2690 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe41797dff9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fe418743038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fe417b35f80 RCX: 00007fe41797dff9 RDX: 0000000020004010 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007fe4179f0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe417b35f80 R15: 00007ffd07629398 --- 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