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