INFO: task kworker/u4:0:5 blocked for more than 140 seconds.
      Not tainted 4.14.94+ #10
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:0    D25632     5      2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
 schedule+0x92/0x1c0 kernel/sched/core.c:3490
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3548
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x559/0x1430 kernel/locking/mutex.c:893
 cleanup_net+0x136/0x860 net/core/net_namespace.c:449
 process_one_work+0x7c6/0x14e0 kernel/workqueue.c:2114
 worker_thread+0x5d7/0x1080 kernel/workqueue.c:2248
 kthread+0x310/0x420 kernel/kthread.c:232
 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:402

Showing all locks held in the system:
3 locks held by kworker/u4:0/5:
 #0:  ("%s""netns"){+.+.}, at: [<ffffffffab927dc5>] process_one_work+0x6e5/0x14e0 kernel/workqueue.c:2085
 #1:  (net_cleanup_work){+.+.}, at: [<ffffffffab927dfb>] process_one_work+0x71b/0x14e0 kernel/workqueue.c:2089
 #2:  (net_mutex){+.+.}, at: [<ffffffffacaeb5d6>] cleanup_net+0x136/0x860 net/core/net_namespace.c:449
1 lock held by khungtaskd/23:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffffab9ffc0c>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541
2 locks held by getty/1754:
 #0:  (&tty->ldisc_sem){++++}, at: [<ffffffffac536a02>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:275
 #1:  (&ldata->atomic_read_lock){+.+.}, at: [<ffffffffac531e27>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156
1 lock held by syz-executor383/23375:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/23441:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/23647:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24009:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24022:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24158:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24272:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24344:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24379:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24722:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24831:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25276:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25315:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25427:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25694:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25765:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25808:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25828:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25885:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25956:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26149:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26212:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26343:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26360:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26467:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26525:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26838:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26972:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27107:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27184:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27327:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27411:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27542:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27669:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27740:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27748:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27842:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28234:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28490:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28691:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29377:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29401:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29565:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29603:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29629:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29729:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29795:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29889:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30026:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30040:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30089:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30113:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30149:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30186:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30243:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30274:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30320:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30411:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30442:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30517:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30761:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30809:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30830:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30852:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30994:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31024:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31048:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31258:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31294:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31419:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31467:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31487:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31615:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31677:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31727:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31778:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31801:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31889:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31996:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32045:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32063:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32117:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32136:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32360:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32517:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32599:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32619:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32707:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/433:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/507:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/620:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/729:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/858:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/881:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1065:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1207:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1250:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1494:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1528:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1605:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1757:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1782:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1979:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2507:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2578:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2651:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2722:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2779:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/3157:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/3292:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/3586:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/3824:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/4584:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/4652:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/5550:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/5681:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/5960:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/6006:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/6721:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/7330:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/7461:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/7530:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/8072:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/8148:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/8191:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/9814:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/9948:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/10213:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/10418:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/10574:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/10636:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/11150:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/11910:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/12065:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/12454:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/12508:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/12945:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/13589:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/13723:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/13841:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/13894:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/14510:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/14649:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/14703:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/14812:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/15567:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/16239:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/16512:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/16589:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/17920:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/18905:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19134:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19193:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19501:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19664:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19790:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19937:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20046:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20343:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20472:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20565:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20798:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/21173:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/21382:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/21766:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/21870:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/22350:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/22678:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/22871:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/23185:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/23336:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/23398:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24482:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24861:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25076:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/25641:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/26261:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27488:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27687:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27752:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27820:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28080:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28417:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28949:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29465:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29907:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30179:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30325:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30457:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30777:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30855:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31743:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31813:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31872:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32188:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32250:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32502:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/429:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/817:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1327:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1609:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2515:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/4478:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/4792:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/6801:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/7130:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/8004:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/9252:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/9869:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/10624:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/11226:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/11383:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/12366:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/12953:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/14288:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/14601:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/15503:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/15792:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/16102:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/16290:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/16455:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/17229:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/17439:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/18030:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/18754:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/19880:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20058:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/20928:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/21744:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/22770:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24504:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/24584:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/27277:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28569:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/28720:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29478:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29847:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/29987:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/30545:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31085:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31289:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31661:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/31821:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32034:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32228:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/32763:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/1971:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/2462:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/5937:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/6326:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/8513:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/13128:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409
1 lock held by syz-executor383/3100:
 #0:  (net_mutex){+.+.}, at: [<ffffffffacaec206>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:409

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

NMI backtrace for cpu 0
CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.94+ #10
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0xb9/0x10e lib/dump_stack.c:53
 nmi_cpu_backtrace.cold+0x47/0x86 lib/nmi_backtrace.c:101
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1 skipped: idling at pc 0xffffffffad04f432