INFO: task kworker/u4:20:25225 blocked for more than 140 seconds.
Not tainted 4.14.115+ #64
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:20 D26096 25225 2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
schedule+0x92/0x1c0 kernel/sched/core.c:3498
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3556
__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:450
process_one_work+0x7c6/0x1510 kernel/workqueue.c:2134
worker_thread+0x5d7/0x1080 kernel/workqueue.c:2271
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:
1 lock held by khungtaskd/23:
#0: (tasklist_lock){.+.+}, at: [<00000000d5cb9386>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4541
2 locks held by getty/1775:
#0: (&tty->ldisc_sem){++++}, at: [<000000000f625464>] tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:284
#1: (&ldata->atomic_read_lock){+.+.}, at: [<0000000023dfcb55>] n_tty_read+0x1f7/0x1700 drivers/tty/n_tty.c:2156
3 locks held by kworker/u4:20/25225:
#0: ("%s""netns"){+.+.}, at: [<00000000262c0950>] process_one_work+0x6e5/0x1510 kernel/workqueue.c:2105
#1: (net_cleanup_work){+.+.}, at: [<000000008698d274>] process_one_work+0x71b/0x1510 kernel/workqueue.c:2109
#2: (net_mutex){+.+.}, at: [<00000000f6528dd5>] cleanup_net+0x136/0x860 net/core/net_namespace.c:450
1 lock held by syz-executor.0/4114:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4135:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4150:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4156:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4172:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4174:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/4223:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4227:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4238:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4286:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4300:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4315:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4330:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4334:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4403:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4426:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4437:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4444:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4481:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/4487:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4488:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4503:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4525:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4549:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4553:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4557:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4599:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4634:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4656:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4670:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4674:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/4676:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4677:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4681:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4716:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4722:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4754:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4757:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/4760:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4786:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4794:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/4811:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4836:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4855:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/4882:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4883:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4918:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4931:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4942:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/4959:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4960:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/4994:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/4996:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5000:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/5014:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5066:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5069:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5111:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5114:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5121:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5145:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5167:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5169:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5184:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5187:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5202:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5206:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5227:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5232:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5259:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5305:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5316:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5371:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5372:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5376:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/5378:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5391:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5413:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5475:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5477:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5480:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5481:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5518:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5521:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5536:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/5554:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5583:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5597:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5618:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5631:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5644:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5670:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5714:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5723:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5763:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5764:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5765:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5777:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5813:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/5814:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5877:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5884:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5886:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5914:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/5948:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/5966:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/5968:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/5974:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/5985:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6007:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6026:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6085:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6096:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6099:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6131:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6133:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6172:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6177:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6188:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6210:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6230:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6235:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6261:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6265:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6269:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/6296:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6317:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6319:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6357:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6382:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6418:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6438:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6451:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6481:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6484:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6506:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6514:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6579:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6626:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6653:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6673:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6690:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6702:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6725:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6730:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6736:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6753:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6758:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6811:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6825:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6867:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6872:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/6892:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6904:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/6931:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by /6968:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7005:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7048:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7049:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7158:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7209:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7216:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7227:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7254:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7276:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7306:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7329:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7349:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7399:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7457:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7475:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7502:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7504:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7551:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7611:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7613:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7665:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7702:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7707:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7754:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7772:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7786:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7789:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7823:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7925:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7971:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/7976:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8070:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/8095:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8117:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/8142:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8270:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8319:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8360:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8522:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8566:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8617:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8727:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8754:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/12289:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12298:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/12324:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12327:
#0: (net_mutex){+.+.}, at: [<0000000028aa7624>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 23 Comm: khungtaskd Not tainted 4.14.115+ #64
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
CPU: 1 PID: 13787 Comm: syz-executor.1 Not tainted 4.14.115+ #64
task: 0000000044cf5f1a task.stack: 0000000083d94ba5
RIP: 0010:debug_lockdep_rcu_enabled.part.0+0x22/0x50 kernel/rcu/update.c:300
RSP: 0018:ffff888113fbf938 EFLAGS: 00000a03
RAX: dffffc0000000000 RBX: ffff888196792f00 RCX: 1ffffffff6e425bc
RDX: 1ffff11032cf26e5 RSI: ffff888196793780 RDI: ffff88819679372c
RBP: 00000000000000cd R08: 0000000000000000 R09: 0000000000020025
R10: ffff888196793780 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000032 R14: 00000000000000cd R15: 0000000000000000
FS: 00007fe0eea8c700(0000) GS:ffff8881dbb00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000019424e0 CR3: 000000014deae002 CR4: 00000000001606a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
rcu_read_lock include/linux/rcupdate.h:632 [inline]
avc_has_perm_noaudit security/selinux/avc.c:1106 [inline]
avc_has_perm+0xd4/0x350 security/selinux/avc.c:1144
selinux_key_permission security/selinux/hooks.c:6200 [inline]
selinux_key_permission+0xe9/0x120 security/selinux/hooks.c:6181
security_key_permission+0x7c/0xb0 security/security.c:1682
key_task_permission+0x150/0x320 security/keys/permission.c:77
search_nested_keyrings+0x51d/0xb60 security/keys/keyring.c:769
keyring_search_aux+0x201/0x3c0 security/keys/keyring.c:899
search_my_process_keyrings+0x21e/0x4e0 security/keys/process_keys.c:396
search_process_keyrings+0x2d/0x3d0 security/keys/process_keys.c:459
key_get_instantiation_authkey+0x108/0x1e0 security/keys/request_key_auth.c:253
keyctl_assume_authority+0x27/0xd0 security/keys/keyctl.c:1407
SYSC_keyctl security/keys/keyctl.c:1712 [inline]
SyS_keyctl+0xce/0x330 security/keys/keyctl.c:1638
do_syscall_64+0x19b/0x4b0 arch/x86/entry/common.c:289
Code: 2e 0f 1f 84 00 00 00 00 00 48 b8 00 00 00 00 00 fc ff df 53 65 48 8b 1c 25 c0 de 01 00 48 8d bb 2c 08 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 0f