INFO: task kworker/u4:30:26535 blocked for more than 140 seconds.
      Not tainted 4.14.174-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:30   D28192 26535      2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
 schedule+0x8d/0x1b0 kernel/sched/core.c:3428
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3486
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x73c/0x1470 kernel/locking/mutex.c:893
 cleanup_net+0x123/0x820 net/core/net_namespace.c:450
 process_one_work+0x813/0x1540 kernel/workqueue.c:2116
 worker_thread+0x5d1/0x1070 kernel/workqueue.c:2250
 kthread+0x30d/0x420 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/1058:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffff81465b93>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4544
2 locks held by getty/7259:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
2 locks held by getty/7260:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
2 locks held by getty/7261:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
2 locks held by getty/7262:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
2 locks held by getty/7263:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
2 locks held by getty/7264:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
2 locks held by getty/7265:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffff833adad2>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffff833a1714>] n_tty_read+0x1e4/0x16f0 drivers/tty/n_tty.c:2156
3 locks held by kworker/u4:30/26535:
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813b67d7>] work_static include/linux/workqueue.h:199 [inline]
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813b67d7>] set_work_data kernel/workqueue.c:619 [inline]
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813b67d7>] set_work_pool_and_clear_pending kernel/workqueue.c:646 [inline]
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff813b67d7>] process_one_work+0x727/0x1540 kernel/workqueue.c:2087
 #1:  (net_cleanup_work){+.+.}, at: [<ffffffff813b6811>] process_one_work+0x761/0x1540 kernel/workqueue.c:2091
 #2:  (net_mutex){+.+.}, at: [<ffffffff84fc6233>] cleanup_net+0x123/0x820 net/core/net_namespace.c:450
1 lock held by syz-executor.1/6585:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6589:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6600:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6606:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6622:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6630:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6641:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6650:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6665:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6676:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6705:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6721:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6799:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6916:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6927:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6936:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7177:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7185:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7189:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7204:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7217:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7233:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7243:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7267:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7269:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7315:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7316:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7341:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7349:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7367:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7378:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7387:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7396:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7399:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7414:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7428:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7455:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7475:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7478:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7489:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7512:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7536:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7559:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7648:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7665:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7671:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7721:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7724:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7739:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7744:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7757:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7770:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7775:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7798:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7809:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7817:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7830:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7837:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7854:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7865:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7870:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7905:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7929:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7931:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/7939:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7941:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7948:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7956:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7961:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/7962:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/7972:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7995:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8001:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8023:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8028:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8068:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8083:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8101:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8118:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8119:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8147:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8157:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8160:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8183:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8194:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/8196:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8201:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8209:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/8216:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8239:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8256:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8261:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8268:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8336:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8358:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8394:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8451:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8488:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8505:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8527:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8761:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8783:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8796:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8814:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8829:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8853:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8872:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8973:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/9003:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9021:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9070:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9179:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9191:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9204:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/9875:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9918:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/9934:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9950:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/9961:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10010:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10092:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10141:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10181:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10218:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10228:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10230:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10249:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10258:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10283:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10284:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10285:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10310:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10311:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10324:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10357:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10421:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10440:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10445:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/10467:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10505:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10619:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10626:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10637:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10661:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10674:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10698:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10725:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10744:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10764:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10798:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10833:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/10864:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10868:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/10991:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11010:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11019:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11024:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11026:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11044:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11059:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/11068:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11072:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11081:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/11105:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11109:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11126:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11129:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11132:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11165:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11177:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11182:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11190:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11218:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11248:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11287:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11294:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11309:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11349:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11365:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11386:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11389:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11401:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/11411:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11418:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11452:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11483:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11504:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11505:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11529:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11566:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11607:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11625:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11631:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/11685:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11700:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/11705:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/11750:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11832:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/11844:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11944:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11995:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12030:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12045:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/12091:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12109:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12124:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/12160:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12191:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12230:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12248:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/12362:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/12403:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12447:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12470:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12493:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12503:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12521:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/12557:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12566:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12585:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12601:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12650:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12678:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12740:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/12774:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12840:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/12863:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12877:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/12897:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12910:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/12931:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12967:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12997:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13015:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13120:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13241:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13280:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13336:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13342:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13376:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13393:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13419:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13512:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13520:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/13587:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13592:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/13632:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13671:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13713:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13745:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/13748:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/13773:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13777:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/13802:
 #0:  (net_mutex){+.+.}, at: [<ffffffff84fc6a86>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410

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

IPVS: ftp: loaded support on port[0] = 21
ntfs: (device loop1): parse_options(): Unrecognized mount option di#Ñ×zˆ'lD
Ù'9£­sable_sparse.
ntfs: (device loop1): parse_options(): The dmask option requires an argument.
IPVS: ftp: loaded support on port[0] = 21
NMI backtrace for cpu 1
CPU: 1 PID: 1058 Comm: khungtaskd Not tainted 4.14.174-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+0x13e/0x194 lib/dump_stack.c:58
 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x139/0x17e lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
 watchdog+0x5e2/0xb80 kernel/hung_task.c:274
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7309 Comm: syz-executor.3 Not tainted 4.14.174-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88805e1ba4c0 task.stack: ffff88805e1c0000
RIP: 0010:strlen+0x4d/0x90 lib/string.c:482
RSP: 0018:ffff88805e1c7978 EFLAGS: 00000806
RAX: ffffffff86a8ec6a RBX: dffffc0000000000 RCX: ffffffff86a8ec6a
RDX: 1ffffffff0d51d8d RSI: ffff8880967ce710 RDI: ffffffff86a8ec60
RBP: ffffffff86a8ec60 R08: 0000000000004c4b R09: 0000000000000000
R10: ffff88805e1bad90 R11: ffff88805e1ba4c0 R12: 1ffff1100bc38f39
R13: 0000000000000000 R14: ffffffff87d6e660 R15: ffff88805e1c7a28
FS:  00000000028d4940(0000) GS:ffff8880aea00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000071ead4 CR3: 000000005e18e000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 trace_event_get_offsets_lock_acquire include/trace/events/lock.h:13 [inline]
 perf_trace_lock+0xcc/0x4b0 include/trace/events/lock.h:39
 trace_lock_release include/trace/events/lock.h:58 [inline]
 lock_release+0x4df/0x7f0 kernel/locking/lockdep.c:4012
 __raw_spin_unlock include/linux/spinlock_api_smp.h:150 [inline]
 _raw_spin_unlock+0x17/0x40 kernel/locking/spinlock.c:184
 spin_unlock include/linux/spinlock.h:357 [inline]
 sync_global_pgds+0x19b/0x400 arch/x86/mm/init_64.c:171
 __vmalloc_node_range+0x3a2/0x6c0 mm/vmalloc.c:1772
 __vmalloc_node mm/vmalloc.c:1815 [inline]
 __vmalloc_node_flags mm/vmalloc.c:1829 [inline]
 vzalloc+0x42/0x50 mm/vmalloc.c:1868
 alloc_counters.isra.0+0x42/0x80 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+0x406/0x760 net/ipv4/netfilter/ip_tables.c:1702
 nf_sockopt net/netfilter/nf_sockopt.c:104 [inline]
 nf_getsockopt+0x62/0xc0 net/netfilter/nf_sockopt.c:122
 ip_getsockopt net/ipv4/ip_sockglue.c:1566 [inline]
 ip_getsockopt+0x105/0x150 net/ipv4/ip_sockglue.c:1551
 tcp_getsockopt net/ipv4/tcp.c:3255 [inline]
 tcp_getsockopt+0x7b/0xc0 net/ipv4/tcp.c:3249
 SYSC_getsockopt net/socket.c:1896 [inline]
 SyS_getsockopt+0x102/0x1c0 net/socket.c:1878
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x42/0xb7
RIP: 0033:0x45f35a
RSP: 002b:00007ffd28f68cb8 EFLAGS: 00000216 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffd28f68ce0 RCX: 000000000045f35a
RDX: 0000000000000041 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 000000000071fe60 R08: 00007ffd28f68cdc R09: 0000000000004000
R10: 00007ffd28f68de0 R11: 0000000000000216 R12: 0000000000000003
R13: 0000000000000000 R14: 0000000000000000 R15: 000000000071f7a0
Code: e2 07 38 d0 7f 04 84 c0 75 48 80 7d 00 00 74 39 48 bb 00 00 00 00 00 fc ff df 48 89 e8 48 83 c0 01 48 89 c2 48 89 c1 48 c1 ea 03 <83> e1 07 0f b6 14 1a 38 ca 7f 04 84 d2 75 1f 80 38 00 75 de 48