Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts.
executing program
[ 1001.333865] INFO: task syz-executor269:8025 blocked for more than 140 seconds.
[ 1001.341288]       Not tainted 4.14.295-syzkaller #0
[ 1001.348057] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1001.356399] syz-executor269 D28392  8025   8023 0x00000004
[ 1001.362020] Call Trace:
[ 1001.365155]  __schedule+0x88b/0x1de0
[ 1001.368857]  ? lock_acquire+0x170/0x3f0
[ 1001.372809]  ? io_schedule_timeout+0x140/0x140
[ 1001.378235]  ? _raw_spin_unlock+0x29/0x40
[ 1001.382374]  ? fuse_writepage_locked+0xe80/0xe80
[ 1001.387709]  schedule+0x8d/0x1b0
[ 1001.391062]  fuse_wait_on_page_writeback.isra.0+0xdc/0x120
[ 1001.397254]  ? fuse_do_ioctl+0x1570/0x1570
[ 1001.401473]  ? end_page_writeback+0xe3/0x1c0
[ 1001.406554]  ? wait_woken+0x230/0x230
[ 1001.410350]  fuse_launder_page+0xa2/0xd0
[ 1001.414944]  invalidate_inode_pages2_range+0x547/0xc00
[ 1001.420212]  ? clear_shadow_entry+0x160/0x160
[ 1001.425238]  ? fuse_range_is_writeback+0x1f0/0x1f0
[ 1001.430156]  ? fuse_file_alloc+0x1ca/0x260
[ 1001.434909]  ? _raw_spin_unlock+0x29/0x40
[ 1001.439043]  ? fuse_do_open+0x18e/0x460
[ 1001.442993]  fuse_finish_open+0x262/0x500
[ 1001.447852]  fuse_open_common+0x234/0x290
[ 1001.451983]  do_dentry_open+0x44b/0xec0
[ 1001.456475]  ? fuse_open_common+0x290/0x290
[ 1001.460789]  ? __inode_permission+0xcd/0x2f0
[ 1001.465720]  vfs_open+0x105/0x220
[ 1001.469158]  path_openat+0x628/0x2970
[ 1001.472938]  ? path_lookupat+0x780/0x780
[ 1001.478043]  ? trace_hardirqs_on+0x10/0x10
[ 1001.482270]  do_filp_open+0x179/0x3c0
[ 1001.486624]  ? may_open_dev+0xe0/0xe0
[ 1001.490414]  ? lock_downgrade+0x740/0x740
[ 1001.495088]  ? do_raw_spin_unlock+0x164/0x220
[ 1001.499584]  ? _raw_spin_unlock+0x29/0x40
[ 1001.504011]  ? __alloc_fd+0x1be/0x490
[ 1001.507812]  do_sys_open+0x296/0x410
[ 1001.511502]  ? filp_open+0x60/0x60
[ 1001.515079]  ? do_syscall_64+0x4c/0x640
[ 1001.519032]  ? compat_SyS_openat+0x30/0x30
[ 1001.523240]  do_syscall_64+0x1d5/0x640
[ 1001.527185]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 1001.532361] RIP: 0033:0x7f97e26704c9
[ 1001.536091] RSP: 002b:00007f97e26212f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 1001.543853] RAX: ffffffffffffffda RBX: 00007f97e27014c0 RCX: 00007f97e26704c9
[ 1001.551107] RDX: 00007f97e26704c9 RSI: 0000000000000000 RDI: 00000000200001c0
[ 1001.558392] RBP: 00007f97e26ce164 R08: 0000000000000000 R09: 0000000000000000
[ 1001.565701] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[ 1001.572956] R13: 00007f97e26ca158 R14: 00007f97e26cc160 R15: 00007f97e27014c8
[ 1001.580269] 
[ 1001.580269] Showing all locks held in the system:
[ 1001.586658] 1 lock held by khungtaskd/1535:
[ 1001.591008]  #0:  (tasklist_lock){.+.+}, at: [<ffffffff87024c59>] debug_show_all_locks+0x7c/0x21a
[ 1001.600091] 2 locks held by syz-executor269/8025:
[ 1001.604996]  #0:  (sb_writers#10){.+.+}, at: [<ffffffff818e083a>] mnt_want_write+0x3a/0xb0
[ 1001.613396]  #1:  (&sb->s_type->i_mutex_key#17){+.+.}, at: [<ffffffff822f5f24>] fuse_open_common+0x1a4/0x290
[ 1001.623406] 
[ 1001.625072] =============================================
[ 1001.625072] 
[ 1001.632162] NMI backtrace for cpu 1
[ 1001.635822] CPU: 1 PID: 1535 Comm: khungtaskd Not tainted 4.14.295-syzkaller #0
[ 1001.643250] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 1001.652582] Call Trace:
[ 1001.655147]  dump_stack+0x1b2/0x281
[ 1001.658747]  nmi_cpu_backtrace.cold+0x57/0x93
[ 1001.663216]  ? irq_force_complete_move+0x350/0x350
[ 1001.668119]  nmi_trigger_cpumask_backtrace+0x13a/0x180
[ 1001.673370]  watchdog+0x5b9/0xb40
[ 1001.676797]  ? hungtask_pm_notify+0x50/0x50
[ 1001.681092]  kthread+0x30d/0x420
[ 1001.684432]  ? kthread_create_on_node+0xd0/0xd0
[ 1001.689074]  ret_from_fork+0x24/0x30
[ 1001.692854] Sending NMI from CPU 1 to CPUs 0:
[ 1001.697423] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff8724544e
[ 1001.698481] Kernel panic - not syncing: hung_task: blocked tasks
[ 1001.710749] CPU: 1 PID: 1535 Comm: khungtaskd Not tainted 4.14.295-syzkaller #0
[ 1001.718168] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 1001.727496] Call Trace:
[ 1001.730059]  dump_stack+0x1b2/0x281
[ 1001.733666]  panic+0x1f9/0x42d
[ 1001.736843]  ? add_taint.cold+0x16/0x16
[ 1001.740797]  watchdog+0x5ca/0xb40
[ 1001.744229]  ? hungtask_pm_notify+0x50/0x50
[ 1001.748524]  kthread+0x30d/0x420
[ 1001.751864]  ? kthread_create_on_node+0xd0/0xd0
[ 1001.756505]  ret_from_fork+0x24/0x30
[ 1001.760456] Kernel Offset: disabled
[ 1001.764068] Rebooting in 86400 seconds..