SELinux: failure in selinux_parse_skb(), unable to parse packet
IPVS: stopping backup sync thread 6974 ...
INFO: task syz-executor3:30393 blocked for more than 140 seconds.
      Not tainted 4.9.116-g52be322 #17
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor3   D28824 30393  13703 0x00000004
 ffff8801b542e000 ffff88019995f480 ffff88019fbb6a00 ffff88019928e000
 ffff8801db321c18 ffff8801d84df5d8 ffffffff839ead0d ffffffff81235647
 0000000000000000 ffff8801b542e8c0 0000000600000007 ffff8801db3224e8
Call Trace:
 [<ffffffff839ec30f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3553
 [<ffffffff839f7948>] __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:526 [inline]
 [<ffffffff839f7948>] rwsem_down_write_failed+0x598/0x990 kernel/locking/rwsem-xadd.c:555
 [<ffffffff81ee8987>] call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 [<ffffffff839f571c>] __down_write arch/x86/include/asm/rwsem.h:125 [inline]
 [<ffffffff839f571c>] down_write+0x5c/0xa0 kernel/locking/rwsem.c:54
 [<ffffffff8191baee>] inode_lock include/linux/fs.h:766 [inline]
 [<ffffffff8191baee>] fuse_reverse_inval_entry+0xae/0x670 fs/fuse/dir.c:1011
 [<ffffffff8190d51e>] fuse_notify_delete fs/fuse/dev.c:1536 [inline]
 [<ffffffff8190d51e>] fuse_notify fs/fuse/dev.c:1768 [inline]
 [<ffffffff8190d51e>] fuse_dev_do_write+0x98e/0x20a0 fs/fuse/dev.c:1843
 [<ffffffff8190f96b>] fuse_dev_write+0x14b/0x1e0 fs/fuse/dev.c:1929
 [<ffffffff8156ee20>] new_sync_write fs/read_write.c:496 [inline]
 [<ffffffff8156ee20>] __vfs_write+0x3e0/0x580 fs/read_write.c:509
 [<ffffffff81572c17>] vfs_write+0x187/0x530 fs/read_write.c:557
 [<ffffffff81576a49>] SYSC_write fs/read_write.c:604 [inline]
 [<ffffffff81576a49>] SyS_write+0xd9/0x1c0 fs/read_write.c:596
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fbc13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb

Showing all locks held in the system:
2 locks held by khungtaskd/519:
 #0:  (rcu_read_lock){......}, at: [<ffffffff8136677c>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff8136677c>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff81425e07>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
2 locks held by getty/3775:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff839f9db2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+.+.}, at: [<ffffffff82120212>] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142
2 locks held by syz-executor3/30393:
 #0:  (&fc->killsb){++++.+}, at: [<ffffffff8190e694>] fuse_notify_delete fs/fuse/dev.c:1533 [inline]
 #0:  (&fc->killsb){++++.+}, at: [<ffffffff8190e694>] fuse_notify fs/fuse/dev.c:1768 [inline]
 #0:  (&fc->killsb){++++.+}, at: [<ffffffff8190e694>] fuse_dev_do_write+0x1b04/0x20a0 fs/fuse/dev.c:1843
 #1:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff8191baee>] inode_lock include/linux/fs.h:766 [inline]
 #1:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff8191baee>] fuse_reverse_inval_entry+0xae/0x670 fs/fuse/dir.c:1011
1 lock held by syz-executor3/30477:
 #0:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff81594e21>] inode_lock_shared include/linux/fs.h:776 [inline]
 #0:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff81594e21>] lookup_slow+0x141/0x470 fs/namei.c:1645

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

NMI backtrace for cpu 0
CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.116-g52be322 #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d92dfd08 ffffffff81eb46a9 0000000000000000 0000000000000000
 0000000000000000 0000000000000001 ffffffff810b9bd0 ffff8801d92dfd40
 ffffffff81ebf9a7 0000000000000000 0000000000000000 0000000000000003
Call Trace:
 [<ffffffff81eb46a9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb46a9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81ebf9a7>] nmi_cpu_backtrace.cold.2+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81ebf93a>] nmi_trigger_cpumask_backtrace+0x12a/0x14f lib/nmi_backtrace.c:60
 [<ffffffff810b9cd4>] arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:37
 [<ffffffff81366d14>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff81366d14>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff81366d14>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff81366d14>] watchdog+0x6b4/0xa20 kernel/hung_task.c:239
 [<ffffffff8119d0ad>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff839fbddc>] ret_from_fork+0x5c/0x70 arch/x86/entry/entry_64.S:373
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 30384 Comm: syz-executor3 Not tainted 4.9.116-g52be322 #17
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff8801b542c800 task.stack: ffff8801975e8000
RIP: 0010:[<ffffffff8122fc35>] 
c [<ffffffff8122fc35>] match_held_lock+0x25/0x570 kernel/locking/lockdep.c:3404
RSP: 0018:ffff8801975ef338  EFLAGS: 00000806
RAX: dffffc0000000000 RBX: ffff8801b542c800 RCX: ffffc900012db000
RDX: 1ffff10036a85a1b RSI: ffffffff846def60 RDI: ffff8801b542d0d8
RBP: ffff8801975ef360 R08: ffff8801b542d110 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffed0036a85a18
R13: ffff8801b542d0c8 R14: ffffffff846def60 R15: 0000000000000000
FS:  00007fa19b1e2700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c42e5a3000 CR3: 0000000197507000 CR4: 00000000001606f0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Stack:
 ffff8801b542c800
c ffffed0036a85a18
c ffff8801b542d0c8
c ffffffff846def60
c
 0000000000000000
c ffff8801975ef3a0
c ffffffff81230222
c ffff8801b542d0c0
c
 0000000000000246
c ffff8801b542c800
c ffffffff846def60
c 00000000000001cc
c
Call Trace:
 [<ffffffff81230222>] __lock_is_held+0xa2/0xf0 kernel/locking/lockdep.c:3597
 [<ffffffff81230a54>] lock_is_held+0xb4/0x140 kernel/locking/lockdep.c:3794
 [<ffffffff811bb58f>] ___might_sleep+0x1ff/0x260 kernel/sched/core.c:7954
 [<ffffffff811bb685>] __might_sleep+0x95/0x1a0 kernel/sched/core.c:7945
 [<ffffffff81907994>] request_wait_answer+0x124/0x6e0 fs/fuse/dev.c:459
 [<ffffffff819085a9>] __fuse_request_send+0x109/0x1b0 fs/fuse/dev.c:480
 [<ffffffff819086ad>] fuse_request_send+0x5d/0x70 fs/fuse/dev.c:493
 [<ffffffff81912904>] fuse_simple_request+0x2f4/0x660 fs/fuse/dev.c:551
 [<ffffffff8191aca3>] fuse_lookup_name+0x253/0x5d0 fs/fuse/dir.c:369
 [<ffffffff8191b10d>] fuse_lookup+0xed/0x3a0 fs/fuse/dir.c:406
 [<ffffffff81594f1e>] lookup_slow+0x23e/0x470 fs/namei.c:1668
 [<ffffffff815a14a6>] walk_component+0x716/0x1bb0 fs/namei.c:1784
 [<ffffffff815a3e06>] lookup_last fs/namei.c:2266 [inline]
 [<ffffffff815a3e06>] path_lookupat.isra.41+0x186/0x410 fs/namei.c:2283
 [<ffffffff815a98b7>] filename_lookup.part.55+0x177/0x370 fs/namei.c:2317
 [<ffffffff815a9c73>] filename_lookup fs/namei.c:2310 [inline]
 [<ffffffff815a9c73>] user_path_at_empty+0x53/0x70 fs/namei.c:2578
 [<ffffffff81580c56>] user_path_at include/linux/namei.h:55 [inline]
 [<ffffffff81580c56>] vfs_fstatat+0xc6/0x170 fs/stat.c:106
 [<ffffffff81581e06>] vfs_stat fs/stat.c:123 [inline]
 [<ffffffff81581e06>] SYSC_newstat+0x86/0xf0 fs/stat.c:270
 [<ffffffff8158220d>] SyS_newstat+0x1d/0x30 fs/stat.c:266
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fbc13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
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c