binder: 18027:18123 ioctl c0046209 7fffffffffffbfc returned -22
INFO: task syz-executor0:18076 blocked for more than 140 seconds.
      Not tainted 4.9.117-g8b21e85 #19
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor0   D29088 18076   7890 0x00000004
 ffff8801d33ae000 ffff8801cca38540 ffff8801c8354540 ffff88019da2b000
 ffff8801db321c18 ffff8801a2c279c8 ffffffff839ebd0d ffffffff81235687
 0000000000000000 ffff8801d33ae8c0 0000000600000007 ffff8801db3224e8
Call Trace:
 [<ffffffff839ed30f>] schedule+0x7f/0x1b0 kernel/sched/core.c:3553
 [<ffffffff839f8948>] __rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:526 [inline]
 [<ffffffff839f8948>] rwsem_down_write_failed+0x598/0x990 kernel/locking/rwsem-xadd.c:555
 [<ffffffff81ee8ec7>] call_rwsem_down_write_failed+0x17/0x30 arch/x86/lib/rwsem.S:105
 [<ffffffff8122c2b0>] __down_write arch/x86/include/asm/rwsem.h:125 [inline]
 [<ffffffff8122c2b0>] down_write_nested+0x60/0xa0 kernel/locking/rwsem.c:174
 [<ffffffff815944a6>] inode_lock_nested include/linux/fs.h:801 [inline]
 [<ffffffff815944a6>] lock_rename+0x236/0x290 fs/namei.c:2857
 [<ffffffff815af3dd>] SYSC_renameat2 fs/namei.c:4607 [inline]
 [<ffffffff815af3dd>] SyS_renameat2 fs/namei.c:4546 [inline]
 [<ffffffff815af3dd>] SYSC_rename fs/namei.c:4697 [inline]
 [<ffffffff815af3dd>] SyS_rename+0x3bd/0x800 fs/namei.c:4695
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fcc13>] 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: [<ffffffff813667fc>] check_hung_uninterruptible_tasks kernel/hung_task.c:168 [inline]
 #0:  (rcu_read_lock){......}, at: [<ffffffff813667fc>] watchdog+0x11c/0xa20 kernel/hung_task.c:239
 #1:  (tasklist_lock){.+.+..}, at: [<ffffffff81426017>] debug_show_all_locks+0x79/0x218 kernel/locking/lockdep.c:4336
2 locks held by rs:main Q:Reg/3670:
 #0:  (&f->f_pos_lock){+.+.+.}, at: [<ffffffff815d859c>] __fdget_pos+0xac/0xd0 fs/file.c:781
 #1:  (sb_writers#3){.+.+.+}, at: [<ffffffff8157307e>] file_start_write include/linux/fs.h:2640 [inline]
 #1:  (sb_writers#3){.+.+.+}, at: [<ffffffff8157307e>] vfs_write+0x3ae/0x530 fs/read_write.c:556
2 locks held by getty/3768:
 #0:  (&tty->ldisc_sem){++++++}, at: [<ffffffff839fadb2>] ldsem_down_read+0x32/0x40 drivers/tty/tty_ldsem.c:367
 #1:  (&ldata->atomic_read_lock){+.+...}, at: [<ffffffff821207f2>] n_tty_read+0x202/0x16e0 drivers/tty/n_tty.c:2142
2 locks held by syz-executor0/18076:
 #0:  (sb_writers#16){.+.+.+}, at: [<ffffffff815e0e3f>] sb_start_write include/linux/fs.h:1573 [inline]
 #0:  (sb_writers#16){.+.+.+}, at: [<ffffffff815e0e3f>] mnt_want_write+0x3f/0xb0 fs/namespace.c:391
 #1:  (&type->i_mutex_dir_key#4/1){+.+.+.}, at: [<ffffffff815944a6>] inode_lock_nested include/linux/fs.h:801 [inline]
 #1:  (&type->i_mutex_dir_key#4/1){+.+.+.}, at: [<ffffffff815944a6>] lock_rename+0x236/0x290 fs/namei.c:2857
1 lock held by syz-executor0/18118:
 #0:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff81595061>] inode_lock_shared include/linux/fs.h:776 [inline]
 #0:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff81595061>] lookup_slow+0x141/0x470 fs/namei.c:1645
1 lock held by syz-executor0/18119:
 #0:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff81595061>] inode_lock_shared include/linux/fs.h:776 [inline]
 #0:  (&type->i_mutex_dir_key#4){++++++}, at: [<ffffffff81595061>] lookup_slow+0x141/0x470 fs/namei.c:1645

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

NMI backtrace for cpu 0
CPU: 0 PID: 519 Comm: khungtaskd Not tainted 4.9.117-g8b21e85 #19
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
 ffff8801d85dfd08 ffffffff81eb4be9 0000000000000000 0000000000000000
 0000000000000000 0000000000000001 ffffffff810b9bd0 ffff8801d85dfd40
 ffffffff81ebfee7 0000000000000000 0000000000000000 0000000000000003
Call Trace:
 [<ffffffff81eb4be9>] __dump_stack lib/dump_stack.c:15 [inline]
 [<ffffffff81eb4be9>] dump_stack+0xc1/0x128 lib/dump_stack.c:51
 [<ffffffff81ebfee7>] nmi_cpu_backtrace.cold.2+0x48/0x87 lib/nmi_backtrace.c:99
 [<ffffffff81ebfe7a>] 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
 [<ffffffff81366d94>] trigger_all_cpu_backtrace include/linux/nmi.h:58 [inline]
 [<ffffffff81366d94>] check_hung_task kernel/hung_task.c:125 [inline]
 [<ffffffff81366d94>] check_hung_uninterruptible_tasks kernel/hung_task.c:182 [inline]
 [<ffffffff81366d94>] watchdog+0x6b4/0xa20 kernel/hung_task.c:239
 [<ffffffff8119d0ed>] kthread+0x26d/0x300 kernel/kthread.c:211
 [<ffffffff839fcddc>] 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: 18057 Comm: syz-executor0 Not tainted 4.9.117-g8b21e85 #19
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
task: ffff88019ab63000 task.stack: ffff880199fe0000
RIP: 0010:[<ffffffff8123ac80>] 
c [<ffffffff8123ac80>] variable_test_bit arch/x86/include/asm/bitops.h:318 [inline]
RIP: 0010:[<ffffffff8123ac80>] 
c [<ffffffff8123ac80>] cpumask_test_cpu include/linux/cpumask.h:317 [inline]
RIP: 0010:[<ffffffff8123ac80>] 
c [<ffffffff8123ac80>] trace_lock_acquire include/trace/events/lock.h:12 [inline]
RIP: 0010:[<ffffffff8123ac80>] 
c [<ffffffff8123ac80>] lock_acquire+0xe0/0x3e0 kernel/locking/lockdep.c:3755
RSP: 0018:ffff880199fe7300  EFLAGS: 00000047
RAX: 0000000000000001 RBX: 0000000000000046 RCX: 0000000000000000
RDX: ffff88019ab63000 RSI: 0000000000000000 RDI: ffff88019ab638c4
RBP: ffff880199fe7368 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801cb5d0578
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS:  00007fb1c0bb2700(0000) GS:ffff8801db300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000209fb10 CR3: 00000001d832e000 CR4: 00000000001606f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 0000000000000000
c ffff88019ab638c0
c 0000000600000007
c ffff88019ab63000
c
 ffffffff839fc30a
c ffff880199fe7498
c ffff8801cb5d0560
c 0000000100000046
c
 ffff8801cb5d0560
c 0000000000000296
c ffff880199fe7498
c ffff8801cb5d0560
c
Call Trace:
 [<ffffffff839fcb2e>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:112 [inline]
 [<ffffffff839fcb2e>] _raw_spin_lock_irqsave+0x4e/0x62 kernel/locking/spinlock.c:159
 [<ffffffff812215fb>] prepare_to_wait_event+0x6b/0x450 kernel/sched/wait.c:213
 [<ffffffff81907c8e>] request_wait_answer+0x22e/0x6e0 fs/fuse/dev.c:459
 [<ffffffff81908799>] __fuse_request_send+0x109/0x1b0 fs/fuse/dev.c:480
 [<ffffffff8190889d>] fuse_request_send+0x5d/0x70 fs/fuse/dev.c:493
 [<ffffffff81912af4>] fuse_simple_request+0x2f4/0x660 fs/fuse/dev.c:551
 [<ffffffff8191ae93>] fuse_lookup_name+0x253/0x5d0 fs/fuse/dir.c:369
 [<ffffffff8191b2fd>] fuse_lookup+0xed/0x3a0 fs/fuse/dir.c:406
 [<ffffffff8159515e>] lookup_slow+0x23e/0x470 fs/namei.c:1668
 [<ffffffff815a16e6>] walk_component+0x716/0x1bb0 fs/namei.c:1784
 [<ffffffff815a4046>] lookup_last fs/namei.c:2266 [inline]
 [<ffffffff815a4046>] path_lookupat.isra.41+0x186/0x410 fs/namei.c:2283
 [<ffffffff815a9af7>] filename_lookup.part.55+0x177/0x370 fs/namei.c:2317
 [<ffffffff815a9eb3>] filename_lookup fs/namei.c:2310 [inline]
 [<ffffffff815a9eb3>] user_path_at_empty+0x53/0x70 fs/namei.c:2578
 [<ffffffff81580e96>] user_path_at include/linux/namei.h:55 [inline]
 [<ffffffff81580e96>] vfs_fstatat+0xc6/0x170 fs/stat.c:106
 [<ffffffff81582046>] vfs_stat fs/stat.c:123 [inline]
 [<ffffffff81582046>] SYSC_newstat+0x86/0xf0 fs/stat.c:270
 [<ffffffff8158244d>] SyS_newstat+0x1d/0x30 fs/stat.c:266
 [<ffffffff81006316>] do_syscall_64+0x1a6/0x490 arch/x86/entry/common.c:282
 [<ffffffff839fcc13>] entry_SYSCALL_64_after_swapgs+0x5d/0xdb
Code: 
c00 
c00 
cc7 
c82 
cc4 
c08 
c00 
c00 
c01 
c00 
c00 
c00 
c8b 
c05 
ca1 
c30 
ca1 
c03 
c85 
cc0 
c0f 
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c00 
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cb2 
cb4 
cdd 
c7e 
c89 
cc0 
c48 
c0f 
ca3 
c05 
cb8 
c3e 
ca2 
c03 
c<0f> 
c82 
ca1 
c00 
c00 
c00 
cc7 
c44 
c24 
c18 
c00 
c00 
c00 
c00 
c49 
c89 
cd9 
c4c 
c89 
ce7 
c44 
c