ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
INFO: task syz-executor.3:14228 blocked for more than 140 seconds.
      Not tainted 4.9.155+ #27
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.3  D25768 14228      1 0x10000004
 ffff8801cff44740 ffff8801a67dc200 ffff8801db621000 ffff8801a6a30000
 ffff8801db621018 ffff8801b022f598 ffffffff82806806 f73046bb42f7b4d6
 0000000000000001 ffff8801cff44ff0 0000000000000006 ffff8801db6218f0
Call Trace:
 [<ffffffff82807d92>] schedule+0x92/0x1c0 kernel/sched/core.c:3553
 [<ffffffff82808733>] schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:3586
 [<ffffffff8280a68d>] __mutex_lock_common kernel/locking/mutex.c:582 [inline]
 [<ffffffff8280a68d>] mutex_lock_nested+0x38d/0x920 kernel/locking/mutex.c:621
 [<ffffffff818928ad>] fuse_lock_inode+0xad/0xe0 fs/fuse/inode.c:364
 [<ffffffff81873bb9>] fuse_lookup+0x89/0x3b0 fs/fuse/dir.c:406
 [<ffffffff8152c99b>] lookup_slow+0x24b/0x480 fs/namei.c:1709
 [<ffffffff8153bc0e>] walk_component+0x71e/0xce0 fs/namei.c:1825
 [<ffffffff8153ca67>] link_path_walk+0x897/0x1200 fs/namei.c:2161
 [<ffffffff8153d977>] path_mountpoint+0x67/0x6d0 fs/namei.c:2737
 [<ffffffff81542502>] filename_mountpoint+0x2f2/0x350 fs/namei.c:2760
 [<ffffffff81543a8a>] user_path_mountpoint_at+0x3a/0x50 fs/namei.c:2788
 [<ffffffff81579bd6>] SYSC_umount fs/namespace.c:1722 [inline]
 [<ffffffff81579bd6>] SyS_umount+0x136/0xd30 fs/namespace.c:1706
 [<ffffffff810056bd>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285
 [<ffffffff82816a93>] 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: [<ffffffff8131bbab>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff8131bbab>] watchdog+0x11b/0xa40 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff813fea8f>] debug_show_all_locks+0x7f/0x21f kernel/locking/lockdep.c:4336
1 lock held by rsyslogd/1912:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff828062e8>] __schedule+0x138/0x1b50 kernel/sched/core.c:3448
2 locks held by getty/2040:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff82814b83>] ldsem_down_read+0x33/0x40 drivers/tty/tty_ldsem.c:377
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff81d3982e>] n_tty_read+0x1fe/0x1820 drivers/tty/n_tty.c:2156
2 locks held by syz-executor.3/14228:
 #0:  (&type->i_mutex_dir_key#7){++++++}, at: [<ffffffff8152c8b0>] inode_lock_shared include/linux/fs.h:778 [inline]
 #0:  (&type->i_mutex_dir_key#7){++++++}, at: [<ffffffff8152c8b0>] lookup_slow+0x160/0x480 fs/namei.c:1686
 #1:  (&fi->mutex){+.+.+.}, at: [<ffffffff818928ad>] fuse_lock_inode+0xad/0xe0 fs/fuse/inode.c:364
2 locks held by syz-executor.3/20264:
 #0:  (&type->i_mutex_dir_key#7){++++++}, at: [<ffffffff8152c8b0>] inode_lock_shared include/linux/fs.h:778 [inline]
 #0:  (&type->i_mutex_dir_key#7){++++++}, at: [<ffffffff8152c8b0>] lookup_slow+0x160/0x480 fs/namei.c:1686
 #1:  (&fi->mutex){+.+.+.}, at: [<ffffffff818928ad>] fuse_lock_inode+0xad/0xe0 fs/fuse/inode.c:364

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

NMI backtrace for cpu 1
CPU: 1 PID: 24 Comm: khungtaskd Not tainted 4.9.155+ #27
 ffff8801d9907cd0 ffffffff81b47871 0000000000000001 0000000000000000
 0000000000000001 ffffffff81097301 00000000003fff03 ffff8801d9907d08
 ffffffff81b52afc 0000000000000001 0000000000000000 0000000000000001
Call Trace:
 [<ffffffff81b47871>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81b47871>] dump_stack+0xc1/0x120 lib/dump_stack.c:51
 [<ffffffff81b52afc>] nmi_cpu_backtrace.cold+0x47/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81b52a84>] nmi_trigger_cpumask_backtrace+0x124/0x155 lib/nmi_backtrace.c:60
 [<ffffffff81097494>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff8131c087>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff8131c087>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff8131c087>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff8131c087>] watchdog+0x5f7/0xa40 kernel/hung_task.c:239
 [<ffffffff81142028>] kthread+0x278/0x310 kernel/kthread.c:211
 [<ffffffff82816c5c>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 1912 Comm: rsyslogd Not tainted 4.9.155+ #27
task: ffff8801d6165f00 task.stack: ffff8801d31a8000
RIP: 0010:[<ffffffff81b63073>] 
c [<ffffffff81b63073>] strlen+0x53/0xa0 lib/string.c:481
RSP: 0018:ffff8801d31af688  EFLAGS: 00000806
RAX: ffffffff82b1bd7a RBX: dffffc0000000000 RCX: ffffffff82b1bd7a
RDX: 1ffffffff05637af RSI: ffffffff84242330 RDI: ffffffff82b1bd60
RBP: ffff8801d31af6a0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000001 R12: ffffffff82b1bd60
R13: 0000000000000000 R14: ffffffff830bdbc0 R15: ffff8801d31af770
FS:  00007f0f8d416700(0000) GS:ffff8801db600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff232c5f88 CR3: 00000001d3185000 CR4: 00000000001606b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Stack:
 000060fe246146d8
c ffff8801c8561568
c 1ffff1003a635ede
c ffff8801d31af798
c
 ffffffff811ffa81
c ffff8801d31af6c0
c ffffffff81babd5c
c ffff8801d31af7b8
c
 ffffffff811ffabe
c ffffffff830d04a0
c ffffffff84242348
c ffff8801d61667a0
c
Call Trace:
 [<ffffffff811ffa81>] trace_event_get_offsets_lock include/trace/events/lock.h:38 [inline]
 [<ffffffff811ffa81>] perf_trace_lock+0xe1/0x540 include/trace/events/lock.h:38
 [<ffffffff8120d05a>] trace_lock_release include/trace/events/lock.h:57 [inline]
 [<ffffffff8120d05a>] lock_release+0x92a/0xc30 kernel/locking/lockdep.c:3774
 [<ffffffff8281617f>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
 [<ffffffff8281617f>] _raw_spin_unlock_irqrestore+0x1f/0x70 kernel/locking/spinlock.c:191
 [<ffffffff819efe6a>] spin_unlock_irqrestore include/linux/spinlock.h:362 [inline]
 [<ffffffff819efe6a>] avc_reclaim_node security/selinux/avc.c:541 [inline]
 [<ffffffff819efe6a>] avc_alloc_node security/selinux/avc.c:559 [inline]
 [<ffffffff819efe6a>] avc_alloc_node+0x29a/0x3c0 security/selinux/avc.c:547
 [<ffffffff819f1222>] avc_insert security/selinux/avc.c:670 [inline]
 [<ffffffff819f1222>] avc_compute_av+0x182/0x610 security/selinux/avc.c:976
 [<ffffffff819f2f65>] avc_has_perm_noaudit security/selinux/avc.c:1112 [inline]
 [<ffffffff819f2f65>] avc_has_perm+0x355/0x3a0 security/selinux/avc.c:1146
 [<ffffffff819fb029>] task_has_system+0x159/0x230 security/selinux/hooks.c:1681
 [<ffffffff81a07525>] selinux_syslog security/selinux/hooks.c:2237 [inline]
 [<ffffffff81a07525>] selinux_syslog+0x35/0xa0 security/selinux/hooks.c:2216
 [<ffffffff819e8243>] security_syslog+0x73/0xb0 security/security.c:210
 [<ffffffff81221e2b>] check_syslog_permissions+0x5b/0xb0 kernel/printk/printk.c:635
 [<ffffffff812250cb>] do_syslog+0x9b/0xaf0 kernel/printk/printk.c:1440
 [<ffffffff81689204>] kmsg_read+0x74/0xa0 fs/proc/kmsg.c:39
 [<ffffffff81660a3d>] proc_reg_read+0xfd/0x180 fs/proc/inode.c:203
 [<ffffffff81509c36>] __vfs_read+0x116/0x550 fs/read_write.c:451
 [<ffffffff8150c947>] vfs_read+0x137/0x380 fs/read_write.c:474
 [<ffffffff8151092c>] SYSC_read fs/read_write.c:590 [inline]
 [<ffffffff8151092c>] SyS_read+0xdc/0x1c0 fs/read_write.c:583
 [<ffffffff810056bd>] do_syscall_64+0x1ad/0x570 arch/x86/entry/common.c:285
 [<ffffffff82816a93>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
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c