Warning: Permanently added '10.128.0.124' (ECDSA) to the list of known hosts.
executing program
[ 1001.314912] INFO: task syz-executor225:7967 blocked for more than 140 seconds.
[ 1001.322378]       Not tainted 4.14.295-syzkaller #0
[ 1001.329761] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 1001.337764] syz-executor225 D28376  7967   7965 0x00000004
[ 1001.343377] Call Trace:
[ 1001.346171]  __schedule+0x88b/0x1de0
[ 1001.349890]  ? lock_acquire+0x170/0x3f0
[ 1001.353894]  ? io_schedule_timeout+0x140/0x140
[ 1001.358506]  ? _raw_spin_unlock+0x29/0x40
[ 1001.362668]  ? fuse_writepage_locked+0xe80/0xe80
[ 1001.367468]  schedule+0x8d/0x1b0
[ 1001.370826]  fuse_wait_on_page_writeback.isra.0+0xdc/0x120
[ 1001.376488]  ? fuse_do_ioctl+0x1570/0x1570
[ 1001.380879]  ? end_page_writeback+0xe3/0x1c0
[ 1001.385367]  ? wait_woken+0x230/0x230
[ 1001.389170]  fuse_launder_page+0xa2/0xd0
[ 1001.393232]  invalidate_inode_pages2_range+0x547/0xc00
[ 1001.398549]  ? clear_shadow_entry+0x160/0x160
[ 1001.403035]  ? fuse_range_is_writeback+0x1f0/0x1f0
[ 1001.407998]  ? fuse_file_alloc+0x1ca/0x260
[ 1001.412227]  ? _raw_spin_unlock+0x29/0x40
[ 1001.416409]  ? fuse_do_open+0x18e/0x460
[ 1001.420381]  fuse_finish_open+0x262/0x500
[ 1001.424539]  fuse_open_common+0x234/0x290
[ 1001.428747]  do_dentry_open+0x44b/0xec0
[ 1001.432722]  ? fuse_open_common+0x290/0x290
[ 1001.437117]  ? __inode_permission+0xcd/0x2f0
[ 1001.441527]  vfs_open+0x105/0x220
[ 1001.445090]  path_openat+0x628/0x2970
[ 1001.448891]  ? path_lookupat+0x780/0x780
[ 1001.452934]  ? trace_hardirqs_on+0x10/0x10
[ 1001.457213]  do_filp_open+0x179/0x3c0
[ 1001.461009]  ? may_open_dev+0xe0/0xe0
[ 1001.464962]  ? lock_downgrade+0x740/0x740
[ 1001.469117]  ? do_raw_spin_unlock+0x164/0x220
[ 1001.473591]  ? _raw_spin_unlock+0x29/0x40
[ 1001.477776]  ? __alloc_fd+0x1be/0x490
[ 1001.481571]  do_sys_open+0x296/0x410
[ 1001.485321]  ? filp_open+0x60/0x60
[ 1001.488895]  ? do_syscall_64+0x4c/0x640
[ 1001.492855]  ? compat_SyS_openat+0x30/0x30
[ 1001.497123]  do_syscall_64+0x1d5/0x640
[ 1001.501034]  entry_SYSCALL_64_after_hwframe+0x46/0xbb
[ 1001.506261] RIP: 0033:0x7f82208424c9
[ 1001.509959] RSP: 002b:00007f82207f32f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[ 1001.517696] RAX: ffffffffffffffda RBX: 00007f82208d34c0 RCX: 00007f82208424c9
[ 1001.525019] RDX: 00007f82208424c9 RSI: 0000000000000000 RDI: 00000000200001c0
[ 1001.532269] RBP: 00007f82208a0164 R08: 0000000000000000 R09: 0000000000000000
[ 1001.539556] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[ 1001.546871] R13: 00007f822089c158 R14: 00007f822089e160 R15: 00007f82208d34c8
[ 1001.554143] 
[ 1001.554143] Showing all locks held in the system:
[ 1001.560647] 1 lock held by khungtaskd/1535:
[ 1001.565106]  #0:  (tasklist_lock){.+.+}, at: [<ffffffff87024c59>] debug_show_all_locks+0x7c/0x21a
[ 1001.574168] 1 lock held by in:imklog/7662:
[ 1001.578457]  #0:  (&f->f_pos_lock){+.+.}, at: [<ffffffff818d77cb>] __fdget_pos+0x1fb/0x2b0
[ 1001.586941] 2 locks held by syz-executor225/7967:
[ 1001.591764]  #0:  (sb_writers#10){.+.+}, at: [<ffffffff818e083a>] mnt_want_write+0x3a/0xb0
[ 1001.600201]  #1:  (&sb->s_type->i_mutex_key#17){+.+.}, at: [<ffffffff822f5f24>] fuse_open_common+0x1a4/0x290
[ 1001.610253] 
[ 1001.611867] =============================================
[ 1001.611867] 
[ 1001.618892] NMI backtrace for cpu 1
[ 1001.622509] CPU: 1 PID: 1535 Comm: khungtaskd Not tainted 4.14.295-syzkaller #0
[ 1001.629933] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 1001.639260] Call Trace:
[ 1001.641827]  dump_stack+0x1b2/0x281
[ 1001.645428]  nmi_cpu_backtrace.cold+0x57/0x93
[ 1001.650039]  ? irq_force_complete_move+0x350/0x350
[ 1001.654971]  nmi_trigger_cpumask_backtrace+0x13a/0x180
[ 1001.660231]  watchdog+0x5b9/0xb40
[ 1001.663661]  ? hungtask_pm_notify+0x50/0x50
[ 1001.668009]  kthread+0x30d/0x420
[ 1001.671439]  ? kthread_create_on_node+0xd0/0xd0
[ 1001.676081]  ret_from_fork+0x24/0x30
[ 1001.679887] Sending NMI from CPU 1 to CPUs 0:
[ 1001.684425] NMI backtrace for cpu 0 skipped: idling at pc 0xffffffff8724544e
[ 1001.685482] Kernel panic - not syncing: hung_task: blocked tasks
[ 1001.697757] CPU: 1 PID: 1535 Comm: khungtaskd Not tainted 4.14.295-syzkaller #0
[ 1001.705180] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
[ 1001.715226] Call Trace:
[ 1001.717808]  dump_stack+0x1b2/0x281
[ 1001.721413]  panic+0x1f9/0x42d
[ 1001.724581]  ? add_taint.cold+0x16/0x16
[ 1001.728536]  watchdog+0x5ca/0xb40
[ 1001.731965]  ? hungtask_pm_notify+0x50/0x50
[ 1001.736293]  kthread+0x30d/0x420
[ 1001.739650]  ? kthread_create_on_node+0xd0/0xd0
[ 1001.744295]  ret_from_fork+0x24/0x30
[ 1001.748281] Kernel Offset: disabled
[ 1001.751897] Rebooting in 86400 seconds..