INFO: task kworker/u4:4:2485 blocked for more than 140 seconds.
      Not tainted 4.14.169-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:4    D26768  2485      2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
 context_switch kernel/sched/core.c:2808 [inline]
 __schedule+0x7b8/0x1cd0 kernel/sched/core.c:3384
FAT-fs (loop2): bogus number of reserved sectors
 schedule+0x92/0x1c0 kernel/sched/core.c:3428
FAT-fs (loop2): Can't find a valid FAT filesystem
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3486
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x73c/0x1470 kernel/locking/mutex.c:893
 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908
 cleanup_net+0x11c/0x870 net/core/net_namespace.c:450
 process_one_work+0x863/0x1600 kernel/workqueue.c:2114
 worker_thread+0x5d9/0x1050 kernel/workqueue.c:2248
 kthread+0x319/0x430 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404

Showing all locks held in the system:
1 lock held by khungtaskd/1053:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffff81488cf8>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4544
3 locks held by kworker/u4:4/2485:
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813d223e>] work_static include/linux/workqueue.h:199 [inline]
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813d223e>] set_work_data kernel/workqueue.c:619 [inline]
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813d223e>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813d223e>] process_one_work+0x76e/0x1600 kernel/workqueue.c:2085
 #1:  (net_cleanup_work){+.+.}, at: [<ffffffff813d227b>] process_one_work+0x7ab/0x1600 kernel/workqueue.c:2089
 #2:  (net_mutex){+.+.}, at: [<ffffffff851be28c>] cleanup_net+0x11c/0x870 net/core/net_namespace.c:450
2 locks held by getty/7599:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
2 locks held by getty/7600:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
2 locks held by getty/7601:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
2 locks held by getty/7602:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
2 locks held by getty/7603:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
2 locks held by getty/7604:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
2 locks held by getty/7605:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff86692003>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff834c3816>] n_tty_read+0x1e6/0x17d0 drivers/tty/n_tty.c:2156
1 lock held by syz-executor.5/12455:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12478:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12483:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12514:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12542:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12554:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/12617:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12670:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12671:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12690:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12713:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12733:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12763:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12769:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12784:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12905:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/12981:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13352:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13429:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13455:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13596:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13662:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13751:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13778:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13872:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/13925:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14021:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14086:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14314:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/14613:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/14615:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14706:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14729:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/14762:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/14785:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/14816:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14887:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/14909:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/14971:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15006:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15012:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15037:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15049:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15117:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15118:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15166:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15169:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15194:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15195:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15209:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15210:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15287:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15316:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15402:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15420:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15429:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15430:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15453:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15471:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15493:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15496:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15511:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15577:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15648:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15680:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15723:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15758:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15811:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15850:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/15875:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/15884:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/15941:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/15971:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/16046:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/16064:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16097:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16120:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16245:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/16262:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16264:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16330:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16350:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16355:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16361:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/16377:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16421:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16426:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16445:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16458:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/16467:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16482:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16496:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16516:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16620:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16688:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16821:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16843:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16932:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/16948:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/16968:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/17087:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17119:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/17145:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17162:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17221:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17232:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/17259:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/17260:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17278:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17344:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17359:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17425:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17440:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/17443:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/17457:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17458:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17530:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17588:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17608:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17622:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17629:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17651:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/17672:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17749:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/17806:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/17893:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/17943:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/17991:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/18021:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/18022:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18096:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18117:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18139:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18155:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18178:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/18247:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/18329:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18380:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18444:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18471:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18532:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18595:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18657:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18781:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/18842:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18901:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/18932:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/18948:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19174:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/19335:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/19350:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/19376:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/19436:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19447:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/19526:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/19586:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/19608:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19645:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/19675:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/19774:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19805:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19824:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19854:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19874:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/19912:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/19982:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
2 locks held by kworker/0:1/20009:
 #0:  ("events"){+.+.}, at: [<ffffffff813d223e>] work_static include/linux/workqueue.h:199 [inline]
 #0:  ("events"){+.+.}, at: [<ffffffff813d223e>] set_work_data kernel/workqueue.c:619 [inline]
 #0:  ("events"){+.+.}, at: [<ffffffff813d223e>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
 #0:  ("events"){+.+.}, at: [<ffffffff813d223e>] process_one_work+0x76e/0x1600 kernel/workqueue.c:2085
 #1:  (xfrm_state_gc_work){+.+.}, at: [<ffffffff813d227b>] process_one_work+0x7ab/0x1600 kernel/workqueue.c:2089
1 lock held by syz-executor.0/20060:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20084:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20109:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20131:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20186:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20209:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20261:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20267:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20293:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20520:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20524:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20555:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20589:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20604:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20665:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/20819:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20858:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20887:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/20899:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21021:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21044:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21144:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21150:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21204:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21224:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21273:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21285:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21291:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21305:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21315:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21329:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21357:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21394:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21451:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21585:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21641:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21661:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/21807:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21903:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/21997:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22076:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22096:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22123:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22332:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22350:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/22383:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/22406:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/22466:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22478:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22545:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/22589:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22624:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/22856:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22911:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/22920:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22932:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/22991:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23007:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23079:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/23114:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/23127:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23384:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/23394:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23445:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23490:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/23491:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23517:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/23758:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24162:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24275:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24411:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24437:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24505:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24520:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24590:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24621:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24805:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24824:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24839:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/24861:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/25071:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/25092:
 #0:  (net_mutex){+.+.}, at: [<ffffffff851beb3a>] copy_net_ns+0x15a/0x440 net/core/net_namespace.c:410

=============================================

IPVS: ftp: loaded support on port[0] = 21
NMI backtrace for cpu 0
CPU: 0 PID: 1053 Comm: khungtaskd Not tainted 4.14.169-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x142/0x197 lib/dump_stack.c:58
 nmi_cpu_backtrace.cold+0x57/0x94 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x141/0x189 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38
 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
 watchdog+0x5e7/0xb90 kernel/hung_task.c:274
 kthread+0x319/0x430 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 7648 Comm: syz-executor.4 Not tainted 4.14.169-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88806acae380 task.stack: ffff88806acb0000
RIP: 0010:find_held_lock+0xd4/0x130 kernel/locking/lockdep.c:3620
RSP: 0018:ffff8880aed07ac0 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: 0000000000000005 RCX: ffff8880aed07b50
RDX: 1ffff1100d595d96 RSI: ffffffff87f84ee0 RDI: ffff88806acaecb0
RBP: ffff8880aed07af0 R08: ffff88806acae380 R09: 0000000000000005
R10: 0000000000000000 R11: ffff88806acae380 R12: ffff88806acaeca0
R13: ffffffff814745db R14: ffffffff87f84ee0 R15: 0000000000000004
FS:  0000000001427940(0000) GS:ffff8880aed00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000e00914 CR3: 000000006ac89000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 __lock_release kernel/locking/lockdep.c:3763 [inline]
 lock_release+0x243/0x940 kernel/locking/lockdep.c:4013
 rcu_lock_release include/linux/rcupdate.h:247 [inline]
 rcu_read_unlock include/linux/rcupdate.h:685 [inline]
 cpuacct_charge+0x1f8/0x360 kernel/sched/cpuacct.c:363
 update_curr+0x2d9/0x6a0 kernel/sched/fair.c:856
 enqueue_entity+0x273/0x2120 kernel/sched/fair.c:3712
 enqueue_task_fair+0xb9/0x5b0 kernel/sched/fair.c:4912
 enqueue_task kernel/sched/core.c:763 [inline]
 activate_task+0x107/0x2e0 kernel/sched/core.c:782
 ttwu_activate kernel/sched/core.c:1670 [inline]
 ttwu_do_activate+0xd4/0x200 kernel/sched/core.c:1729
 ttwu_queue kernel/sched/core.c:1874 [inline]
 try_to_wake_up+0x8a2/0xf90 kernel/sched/core.c:2087
 wake_up_process+0x10/0x20 kernel/sched/core.c:2160
 hrtimer_wakeup+0x48/0x60 kernel/time/hrtimer.c:1441
 __run_hrtimer kernel/time/hrtimer.c:1223 [inline]
 __hrtimer_run_queues+0x270/0xbc0 kernel/time/hrtimer.c:1287
 hrtimer_interrupt+0x1d8/0x5d0 kernel/time/hrtimer.c:1321
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline]
 smp_apic_timer_interrupt+0x11c/0x5e0 arch/x86/kernel/apic/apic.c:1100
 apic_timer_interrupt+0x96/0xa0 arch/x86/entry/entry_64.S:792
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline]
RIP: 0010:lock_release+0x44d/0x940 kernel/locking/lockdep.c:4016
RSP: 0018:ffff88806acb79a0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10
RAX: 1ffffffff0fe2ce1 RBX: 1ffff1100d596f3a RCX: 1ffff1100d595d7e
RDX: dffffc0000000000 RSI: 0000000000000003 RDI: 0000000000000286
RBP: ffff88806acb7a38 R08: ffff88806acae380 R09: 0000000000000002
R10: 0000000000000000 R11: ffff88806acae380 R12: ffff88806acae380
R13: ffffffff81298494 R14: 0000000000000003 R15: ffff88806acb7a10
 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
 _raw_spin_unlock+0x1b/0x50 kernel/locking/spinlock.c:184
 spin_unlock include/linux/spinlock.h:357 [inline]
 sync_global_pgds+0x194/0x400 arch/x86/mm/init_64.c:171
 vmalloc_sync_all+0x22/0x30 arch/x86/mm/fault.c:406
 __vmalloc_node_range+0x383/0x6a0 mm/vmalloc.c:1772
 __vmalloc_node mm/vmalloc.c:1815 [inline]
 __vmalloc_node_flags mm/vmalloc.c:1829 [inline]
 vzalloc+0x46/0x50 mm/vmalloc.c:1868
 alloc_counters.isra.0+0x48/0x90 net/ipv6/netfilter/ip6_tables.c:818
 copy_entries_to_user net/ipv4/netfilter/ip_tables.c:822 [inline]
 get_entries net/ipv4/netfilter/ip_tables.c:1025 [inline]
 do_ipt_get_ctl+0x439/0x7e0 net/ipv4/netfilter/ip_tables.c:1702
 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline]
 nf_getsockopt+0x6a/0xc0 net/netfilter/nf_sockopt.c:122
 ip_getsockopt net/ipv4/ip_sockglue.c:1566 [inline]
 ip_getsockopt+0x10d/0x150 net/ipv4/ip_sockglue.c:1551
 tcp_getsockopt net/ipv4/tcp.c:3249 [inline]
 tcp_getsockopt+0x84/0xd0 net/ipv4/tcp.c:3243
 sock_common_getsockopt+0x94/0xd0 net/core/sock.c:2927
 SYSC_getsockopt net/socket.c:1896 [inline]
 SyS_getsockopt+0x126/0x1e0 net/socket.c:1878
 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45de5a
RSP: 002b:00007ffd2fc3e078 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffd2fc3e0a0 RCX: 000000000045de5a
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000071de80 R08: 00007ffd2fc3e09c R09: 0000000000004000
R10: 00007ffd2fc3e1a0 R11: 0000000000000212 R12: 0000000000000003
R13: 0000000000000000 R14: 0000000000000000 R15: 000000000071ca40
Code: 48 c1 e8 03 83 e2 07 42 0f b6 04 28 38 d0 7f 04 84 c0 75 5a 41 32 5c 24 21 83 e3 60 74 8e 45 31 e4 48 b8 00 00 00 00 00 fc ff df <48> 8b 4d d0 48 89 ca 48 c1 ea 03 0f b6 14 02 48 89 c8 83 e0 07