device vti33 entered promiscuous mode
device vti34 entered promiscuous mode
device vti35 entered promiscuous mode
device vti36 entered promiscuous mode
device vti37 entered promiscuous mode
INFO: task syz-executor.3:28379 blocked for more than 140 seconds.
      Not tainted 4.9.194+ #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D28280 28379  18303 0x80000006
 0000000000000087 ffff8801a15c5f00 ffff8801c9073180 ffff8801db621000
 ffff8801c824c740 ffff8801db621018 ffff8801a7e3f768 ffffffff8281af8e
 ffffffff8151c694 ffffffff8151c9f6 00ffffff81141688 ffff8801db6218f0
Call Trace:
 [<00000000ce64edb5>] schedule+0x92/0x1c0 kernel/sched/core.c:3546
 [<00000000a8b439d4>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3579
 [<00000000f6b14ce9>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
 [<00000000f6b14ce9>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621
 [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
 [<000000008c1de145>] ipv6_sock_ac_close+0xe7/0x270 net/ipv6/anycast.c:184
 [<000000006bdac1bc>] inet6_release+0x4b/0x80 net/ipv6/af_inet6.c:453
 [<00000000b403e1fb>] __sock_release+0xd3/0x2c0 net/socket.c:605
 [<0000000045e0da91>] sock_close+0x1b/0x30 net/socket.c:1060
 [<0000000041fe5e0c>] __fput+0x274/0x720 fs/file_table.c:208
 [<00000000b10312ac>] ____fput+0x16/0x20 fs/file_table.c:244
 [<0000000062a059c6>] task_work_run+0x108/0x180 kernel/task_work.c:116
 [<00000000058f9ff8>] exit_task_work include/linux/task_work.h:21 [inline]
 [<00000000058f9ff8>] do_exit+0x78f/0x2aa0 kernel/exit.c:842
 [<00000000257fe40b>] do_group_exit+0x111/0x300 kernel/exit.c:946
 [<00000000854e2577>] get_signal+0x377/0x1cb0 kernel/signal.c:2395
 [<0000000080617a60>] do_signal+0x9c/0x1920 arch/x86/kernel/signal.c:812
 [<000000008a157b00>] exit_to_usermode_loop+0x11c/0x160 arch/x86/entry/common.c:159
 [<000000004f145bb4>] prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
 [<000000004f145bb4>] syscall_return_slowpath arch/x86/entry/common.c:266 [inline]
 [<000000004f145bb4>] do_syscall_64+0x3ab/0x5c0 arch/x86/entry/common.c:293
 [<000000001f6969b2>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/24:
 #0:  (rcu_read_lock){......}, at: [<00000000db3d7861>] check_hung_uninterruptible_tasks kernel/hung_task.c:169 [inline]
 #0:  (rcu_read_lock){......}, at: [<00000000db3d7861>] watchdog+0x14b/0xaf0 kernel/hung_task.c:263
 #1:  (tasklist_lock){.+.+..}, at: [<00000000519adbcb>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336
1 lock held by rsyslogd/1904:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<000000002431321d>] __fdget_pos+0xa8/0xd0 fs/file.c:782
2 locks held by getty/2031:
 #0:  (&tty->ldisc_sem){++++++}, at: [<000000003f89917f>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:376
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<00000000bb17f3d1>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156
2 locks held by syz-executor.3/28379:
 #0:  (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [<00000000da4eeeb3>] inode_lock include/linux/fs.h:771 [inline]
 #0:  (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [<00000000da4eeeb3>] __sock_release+0x89/0x2c0 net/socket.c:604
 #1:  (rtnl_mutex){+.+.+.}, at: [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
3 locks held by kworker/1:3/3197:
 #0:  ("%s"("ipv6_addrconf")){.+.+..}, at: [<00000000b014b0b8>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107
 #1:  ((addr_chk_work).work){+.+...}, at: [<00000000b036c533>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111
 #2:  (rtnl_mutex){+.+.+.}, at: [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
2 locks held by syz-executor.3/14391:
 #0:  (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [<00000000da4eeeb3>] inode_lock include/linux/fs.h:771 [inline]
 #0:  (&sb->s_type->i_mutex_key#8){+.+.+.}, at: [<00000000da4eeeb3>] __sock_release+0x89/0x2c0 net/socket.c:604
 #1:  (rtnl_mutex){+.+.+.}, at: [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
3 locks held by kworker/1:7/7941:
 #0:  ("events_power_efficient"){.+.+.+}, at: [<00000000b014b0b8>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107
 #1:  ((check_lifetime_work).work){+.+.+.}, at: [<00000000b036c533>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111
 #2:  (rtnl_mutex){+.+.+.}, at: [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
2 locks held by syz-executor.3/7099:
 #0:  (rtnl_mutex){+.+.+.}, at: [<00000000d85da111>] rtnl_lock net/core/rtnetlink.c:70 [inline]
 #0:  (rtnl_mutex){+.+.+.}, at: [<00000000d85da111>] rtnetlink_rcv+0x1c/0x40 net/core/rtnetlink.c:4086
 #1:  (rcu_preempt_state.exp_mutex){+.+...}, at: [<000000000f611710>] exp_funnel_lock kernel/rcu/tree_exp.h:256 [inline]
 #1:  (rcu_preempt_state.exp_mutex){+.+...}, at: [<000000000f611710>] _synchronize_rcu_expedited+0x339/0x850 kernel/rcu/tree_exp.h:569
1 lock held by syz-executor.4/7101:
 #0:  (rtnl_mutex){+.+.+.}, at: [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
1 lock held by syz-executor.4/7108:
 #0:  (rtnl_mutex){+.+.+.}, at: [<00000000d9ae1e48>] rtnl_lock+0x17/0x20 net/core/rtnetlink.c:70
2 locks held by kworker/1:5/7128:
 #0:  ("events"){.+.+.+}, at: [<00000000b014b0b8>] process_one_work+0x790/0x1600 kernel/workqueue.c:2107
 #1:  ((&rew.rew_work)){+.+...}, at: [<00000000b036c533>] process_one_work+0x7ce/0x1600 kernel/workqueue.c:2111

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

NMI backtrace for cpu 1
CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.194+ #0
 ffff8801d98d7cc8 ffffffff81b67001 0000000000000001 0000000000000000
 0000000000000001 ffffffff81099d01 dffffc0000000000 ffff8801d98d7d00
 ffffffff81b7229c 0000000000000001 0000000000000000 0000000000000001
Call Trace:
 [<00000000c52b0884>] __dump_stack lib/dump_stack.c:15 [inline]
 [<00000000c52b0884>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<000000000489d7c1>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99
 [<0000000065eb42c5>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60
 [<0000000090e43566>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<00000000fe272d7a>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<00000000fe272d7a>] check_hung_task kernel/hung_task.c:126 [inline]
 [<00000000fe272d7a>] check_hung_uninterruptible_tasks kernel/hung_task.c:183 [inline]
 [<00000000fe272d7a>] watchdog+0x670/0xaf0 kernel/hung_task.c:263
 [<000000000cf7526c>] kthread+0x278/0x310 kernel/kthread.c:211
 [<000000006bb0aab8>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:375
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff8282a0e1