IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
IPVS: ftp: loaded support on port[0] = 21
INFO: task kworker/u4:0:17175 blocked for more than 140 seconds.
      Not tainted 4.14.213-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:0    D27240 17175      2 0x80000000
Workqueue: netns cleanup_net
Call Trace:
 context_switch kernel/sched/core.c:2808 [inline]
 __schedule+0x88b/0x1de0 kernel/sched/core.c:3384
 schedule+0x8d/0x1b0 kernel/sched/core.c:3428
 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:3486
 __mutex_lock_common kernel/locking/mutex.c:833 [inline]
 __mutex_lock+0x669/0x1310 kernel/locking/mutex.c:893
 cleanup_net+0x110/0x840 net/core/net_namespace.c:450
 process_one_work+0x793/0x14a0 kernel/workqueue.c:2116
 worker_thread+0x5cc/0xff0 kernel/workqueue.c:2250
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404

Showing all locks held in the system:
1 lock held by khungtaskd/1532:
 #0:  (tasklist_lock){.+.+}, at: [<ffffffff81430dd4>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548
3 locks held by kworker/u4:0/17175:
 #0:  ("%s""netns"){+.+.}, at: [<ffffffff81373630>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2087
 #1:  (net_cleanup_work){+.+.}, at: [<ffffffff81373666>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2091
 #2:  (net_mutex){+.+.}, at: [<ffffffff85dc8bf0>] cleanup_net+0x110/0x840 net/core/net_namespace.c:450
1 lock held by syz-executor.1/6034:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6049:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6074:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6136:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6166:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6184:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6213:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6250:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6273:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6333:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6354:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6364:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6394:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6406:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6434:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6455:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6483:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/6484:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6499:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6531:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6561:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6620:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6635:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6669:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6717:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6745:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6770:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6831:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6851:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6879:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6897:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6928:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6949:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/6980:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/6999:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7028:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7055:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7108:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7155:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7209:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7227:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7245:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7285:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7337:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7369:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7393:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7419:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7424:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7452:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7472:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7482:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7507:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7527:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7535:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7574:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7584:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7632:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7634:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7698:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7749:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7751:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7799:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7803:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7848:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7899:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7900:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/7927:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/7957:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/7966:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8007:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8091:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8139:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8223:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8225:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8250:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8366:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8377:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8381:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8452:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8450:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8536:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8586:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8597:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8637:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8645:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8663:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8681:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8690:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8719:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8725:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8733:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8789:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8805:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/8856:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/8905:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/8936:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/8999:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9004:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9014:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/9023:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/9047:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9063:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9077:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/9096:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9104:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9108:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/9135:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9146:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9150:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9168:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/9183:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/9192:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9196:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9215:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/9226:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/9264:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.4/9274:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9295:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.5/9301:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9329:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9341:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9382:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9415:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9437:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9452:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9469:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9498:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9515:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9543:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9577:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9598:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9631:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9677:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9701:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9730:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9753:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9806:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9834:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9856:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9877:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9888:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9910:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9918:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9937:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9946:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/9966:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/9973:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10001:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10029:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10039:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10057:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10066:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10087:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10097:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10124:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10129:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10153:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10216:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10268:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10292:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10346:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10385:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10461:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10468:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10504:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10525:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10566:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10589:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10602:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10629:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10670:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10715:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10770:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10806:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/10832:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10870:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/10886:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/10939:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11041:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11097:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11132:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11322:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11336:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/11379:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11410:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11459:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11484:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11558:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11582:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11685:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11694:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11814:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11826:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/11923:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/11945:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.3/12115:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12185:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12203:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12266:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12282:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12479:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12496:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12577:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12732:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12828:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/12884:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/12987:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13032:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13114:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13234:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13337:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13367:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13463:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13543:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13631:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13664:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13733:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13770:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13827:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.1/13841:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13862:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.2/13990:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410
1 lock held by syz-executor.0/23084:
 #0:  (net_mutex){+.+.}, at: [<ffffffff85dc9476>] copy_net_ns+0x156/0x440 net/core/net_namespace.c:410

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

NMI backtrace for cpu 0
CPU: 0 PID: 1532 Comm: khungtaskd Not tainted 4.14.213-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:17 [inline]
 dump_stack+0x1b2/0x283 lib/dump_stack.c:58
 nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
 nmi_trigger_cpumask_backtrace+0x13a/0x17f lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
 watchdog+0x5b9/0xb40 kernel/hung_task.c:274
 kthread+0x30d/0x420 kernel/kthread.c:232
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 6015 Comm: syz-executor.2 Not tainted 4.14.213-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8881dbf3e5c0 task.stack: ffff8881dbf48000
RIP: 0010:memcmp+0x37/0xb0 lib/string.c:885
RSP: 0018:ffff8881dbf4f4c8 EFLAGS: 00000807
RAX: 1ffff1103b7e9eb2 RBX: ffff8881dbf4f597 RCX: 0000000000000006
RDX: ffff8881dbf4f597 RSI: ffff888235610bdf RDI: ffff8881dbf4f560
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000003
R10: 0000000000000000 R11: ffff8881dbf3e5c0 R12: ffff8881dbf4f600
R13: 0000000000000014 R14: ffff8881dbf4f560 R15: ffff888235610b90
FS:  00007f6e644cd700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fba8802d000 CR3: 00000001fa3e5000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 find_stack lib/stackdepot.c:180 [inline]
 depot_save_stack+0x10d/0x3e3 lib/stackdepot.c:229
 save_stack mm/kasan/kasan.c:453 [inline]
 set_track mm/kasan/kasan.c:459 [inline]
 kasan_slab_free+0x117/0x1a0 mm/kasan/kasan.c:524
 __cache_free mm/slab.c:3496 [inline]
 kmem_cache_free+0x7c/0x2b0 mm/slab.c:3758
 kfree_skbmem+0x98/0x100 net/core/skbuff.c:586
 __kfree_skb net/core/skbuff.c:646 [inline]
 consume_skb+0xed/0x380 net/core/skbuff.c:705
 netlink_broadcast_filtered+0x2ab/0x9e0 net/netlink/af_netlink.c:1489
 kobject_uevent_env+0x9c8/0xf40 lib/kobject_uevent.c:495
 rx_queue_add_kobject net/core/net-sysfs.c:931 [inline]
 net_rx_queue_update_kobjects+0xce/0x3e0 net/core/net-sysfs.c:953
 register_queue_kobjects net/core/net-sysfs.c:1401 [inline]
 netdev_register_kobject+0x26f/0x410 net/core/net-sysfs.c:1612
 register_netdevice+0x955/0xe40 net/core/dev.c:7660
 register_netdev+0x17/0x30 net/core/dev.c:7805
 sit_init_net+0x2cf/0x8d0 net/ipv6/sit.c:1848
 ops_init+0xaa/0x3e0 net/core/net_namespace.c:118
 setup_net+0x22f/0x530 net/core/net_namespace.c:295
 copy_net_ns+0x19b/0x440 net/core/net_namespace.c:419
 create_new_namespaces+0x375/0x720 kernel/nsproxy.c:107
 copy_namespaces+0x27b/0x310 kernel/nsproxy.c:165
 copy_process.part.0+0x25f8/0x71c0 kernel/fork.c:1793
 copy_process kernel/fork.c:1605 [inline]
 _do_fork+0x184/0xc80 kernel/fork.c:2091
 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
 entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x45e219
RSP: 002b:00007f6e644ccc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045e219
RDX: 0000000020000200 RSI: 0000000020000140 RDI: 0000000040101100
RBP: 000000000119bfd0 R08: 0000000020000280 R09: 0000000000000000
R10: 0000000020000240 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffcbb18286f R14: 00007f6e644cd9c0 R15: 000000000119bf8c
Code: 48 bd 00 00 00 00 00 fc ff df 53 48 89 fb 48 83 ec 10 eb 0d 48 83 c3 01 48 83 c6 01 49 39 dc 74 45 48 89 d8 48 89 da 48 c1 e8 03 <83> e2 07 0f b6 04 28 38 d0 7f 04 84 c0 75 54 48 89 f2 48 89 f1