BUG: memory leak
unreferenced object 0xffff88811958bc00 (size 240):
  comm "kworker/1:7", pid 3727, jiffies 4294990875 (age 23.320s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 bc 58 19 81 88 ff ff  ..........X.....
    00 a0 83 1a 81 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff8387bb59>] __alloc_skb+0x1f9/0x270 net/core/skbuff.c:422
    [<ffffffff83e4ecb4>] alloc_skb include/linux/skbuff.h:1257 [inline]
    [<ffffffff83e4ecb4>] lapb_send_control+0x34/0x1b0 net/lapb/lapb_subr.c:227
    [<ffffffff83e4f4e6>] __lapb_disconnect_request+0xa6/0xc0 net/lapb/lapb_iface.c:326
    [<ffffffff83e4f775>] lapb_device_event+0x195/0x250 net/lapb/lapb_iface.c:492
    [<ffffffff81288eed>] notifier_call_chain kernel/notifier.c:87 [inline]
    [<ffffffff81288eed>] raw_notifier_call_chain+0x5d/0xa0 kernel/notifier.c:455
    [<ffffffff8389e328>] call_netdevice_notifiers_info+0x78/0xe0 net/core/dev.c:1945
    [<ffffffff8389ec76>] call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
    [<ffffffff8389ec76>] call_netdevice_notifiers net/core/dev.c:1997 [inline]
    [<ffffffff8389ec76>] __dev_close_many+0x76/0x150 net/core/dev.c:1490
    [<ffffffff838a31d3>] dev_close_many+0xc3/0x1b0 net/core/dev.c:1541
    [<ffffffff838a5c9e>] dev_close net/core/dev.c:1567 [inline]
    [<ffffffff838a5c9e>] dev_close+0xae/0xf0 net/core/dev.c:1561
    [<ffffffff82b43a73>] lapbeth_device_event+0x333/0x580 drivers/net/wan/lapbether.c:462
    [<ffffffff81288eed>] notifier_call_chain kernel/notifier.c:87 [inline]
    [<ffffffff81288eed>] raw_notifier_call_chain+0x5d/0xa0 kernel/notifier.c:455
    [<ffffffff8389e328>] call_netdevice_notifiers_info+0x78/0xe0 net/core/dev.c:1945
    [<ffffffff8389ec76>] call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
    [<ffffffff8389ec76>] call_netdevice_notifiers net/core/dev.c:1997 [inline]
    [<ffffffff8389ec76>] __dev_close_many+0x76/0x150 net/core/dev.c:1490
    [<ffffffff838a31d3>] dev_close_many+0xc3/0x1b0 net/core/dev.c:1541
    [<ffffffff838a7f1f>] unregister_netdevice_many+0x1df/0xb40 net/core/dev.c:10836
    [<ffffffff838a89b4>] unregister_netdevice_queue+0x134/0x190 net/core/dev.c:10793

BUG: memory leak
unreferenced object 0xffff88811a0ebc00 (size 512):
  comm "kworker/1:7", pid 3727, jiffies 4294990875 (age 23.320s)
  hex dump (first 32 bytes):
    00 00 00 00 ff ff ff ff ff ff 42 42 42 42 42 42  ..........BBBBBB
    60 00 02 00 01 53 00 00 00 00 00 00 00 00 00 00  `....S..........
  backtrace:
    [<ffffffff8387ba3d>] kmalloc_reserve net/core/skbuff.c:362 [inline]
    [<ffffffff8387ba3d>] __alloc_skb+0xdd/0x270 net/core/skbuff.c:434
    [<ffffffff83e4ecb4>] alloc_skb include/linux/skbuff.h:1257 [inline]
    [<ffffffff83e4ecb4>] lapb_send_control+0x34/0x1b0 net/lapb/lapb_subr.c:227
    [<ffffffff83e4f4e6>] __lapb_disconnect_request+0xa6/0xc0 net/lapb/lapb_iface.c:326
    [<ffffffff83e4f775>] lapb_device_event+0x195/0x250 net/lapb/lapb_iface.c:492
    [<ffffffff81288eed>] notifier_call_chain kernel/notifier.c:87 [inline]
    [<ffffffff81288eed>] raw_notifier_call_chain+0x5d/0xa0 kernel/notifier.c:455
    [<ffffffff8389e328>] call_netdevice_notifiers_info+0x78/0xe0 net/core/dev.c:1945
    [<ffffffff8389ec76>] call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
    [<ffffffff8389ec76>] call_netdevice_notifiers net/core/dev.c:1997 [inline]
    [<ffffffff8389ec76>] __dev_close_many+0x76/0x150 net/core/dev.c:1490
    [<ffffffff838a31d3>] dev_close_many+0xc3/0x1b0 net/core/dev.c:1541
    [<ffffffff838a5c9e>] dev_close net/core/dev.c:1567 [inline]
    [<ffffffff838a5c9e>] dev_close+0xae/0xf0 net/core/dev.c:1561
    [<ffffffff82b43a73>] lapbeth_device_event+0x333/0x580 drivers/net/wan/lapbether.c:462
    [<ffffffff81288eed>] notifier_call_chain kernel/notifier.c:87 [inline]
    [<ffffffff81288eed>] raw_notifier_call_chain+0x5d/0xa0 kernel/notifier.c:455
    [<ffffffff8389e328>] call_netdevice_notifiers_info+0x78/0xe0 net/core/dev.c:1945
    [<ffffffff8389ec76>] call_netdevice_notifiers_extack net/core/dev.c:1983 [inline]
    [<ffffffff8389ec76>] call_netdevice_notifiers net/core/dev.c:1997 [inline]
    [<ffffffff8389ec76>] __dev_close_many+0x76/0x150 net/core/dev.c:1490
    [<ffffffff838a31d3>] dev_close_many+0xc3/0x1b0 net/core/dev.c:1541
    [<ffffffff838a7f1f>] unregister_netdevice_many+0x1df/0xb40 net/core/dev.c:10836
    [<ffffffff838a89b4>] unregister_netdevice_queue+0x134/0x190 net/core/dev.c:10793