Warning: Permanently added '10.128.1.0' (ECDSA) to the list of known hosts.
executing program
[  717.683071] INFO: task syz-executor418:8117 blocked for more than 140 seconds.
[  717.690556]       Not tainted 4.19.211-syzkaller #0
[  717.696577] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  717.705019] syz-executor418 D26984  8117   8115 0x00000004
[  717.710643] Call Trace:
[  717.713654]  __schedule+0x887/0x2040
[  717.717382]  ? io_schedule_timeout+0x140/0x140
[  717.721944]  ? _raw_spin_unlock+0x29/0x40
[  717.726431]  schedule+0x8d/0x1b0
[  717.729820]  fuse_wait_on_page_writeback.isra.0+0x11b/0x170
[  717.735861]  ? fuse_do_ioctl+0x1850/0x1850
[  717.740245]  ? wait_woken+0x250/0x250
[  717.744379]  ? fuse_writepage_locked+0xb63/0x1010
[  717.749220]  ? fuse_writepage_locked+0x1010/0x1010
[  717.754586]  fuse_launder_page+0xb6/0xe0
[  717.758706]  invalidate_inode_pages2_range+0x795/0x1110
[  717.764410]  ? clear_shadow_entry+0x170/0x170
[  717.768906]  ? fuse_file_alloc+0x1d9/0x270
[  717.773511]  ? do_raw_spin_unlock+0x171/0x230
[  717.778004]  ? _raw_spin_unlock+0x29/0x40
[  717.782135]  ? fuse_do_open+0x1c4/0x500
[  717.786607]  fuse_finish_open+0x2e2/0x590
[  717.790759]  fuse_open_common+0x254/0x2c0
[  717.795301]  do_dentry_open+0x4aa/0x1160
[  717.799374]  ? fuse_open_common+0x2c0/0x2c0
[  717.804077]  ? inode_permission.part.0+0x10c/0x450
[  717.809007]  ? chown_common+0x550/0x550
[  717.813469]  ? inode_permission+0x3d/0x140
[  717.817704]  path_openat+0x793/0x2df0
[  717.821492]  ? path_lookupat+0x8d0/0x8d0
[  717.825859]  ? mark_held_locks+0xf0/0xf0
[  717.829923]  do_filp_open+0x18c/0x3f0
[  717.834028]  ? may_open_dev+0xf0/0xf0
[  717.837838]  ? lock_downgrade+0x720/0x720
[  717.841966]  ? lock_acquire+0x170/0x3c0
[  717.846304]  ? __alloc_fd+0x34/0x570
[  717.850021]  ? do_raw_spin_unlock+0x171/0x230
[  717.854837]  ? _raw_spin_unlock+0x29/0x40
[  717.858983]  ? __alloc_fd+0x28d/0x570
[  717.862777]  do_sys_open+0x3b3/0x520
[  717.866808]  ? filp_open+0x70/0x70
[  717.870350]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[  717.876089]  ? trace_hardirqs_off_caller+0x6e/0x210
[  717.881119]  ? do_syscall_64+0x21/0x620
[  717.885417]  do_syscall_64+0xf9/0x620
[  717.889217]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[  717.894717] RIP: 0033:0x7f00a44be4c9
[  717.898427] Code: Bad RIP value.
[  717.901774] RSP: 002b:00007f00a446f2f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
[  717.909805] RAX: ffffffffffffffda RBX: 00007f00a454f4c0 RCX: 00007f00a44be4c9
[  717.917331] RDX: 00007f00a44be4c9 RSI: 0000000000000000 RDI: 00000000200001c0
[  717.924856] RBP: 00007f00a451c164 R08: 0000000000000000 R09: 0000000000000000
[  717.932128] R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e
[  717.939734] R13: 00007f00a4518158 R14: 00007f00a451a160 R15: 00007f00a454f4c8
[  717.947270] 
[  717.947270] Showing all locks held in the system:
[  717.953884] 1 lock held by khungtaskd/1570:
[  717.958206]  #0: 00000000963b2792 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265
[  717.967186] 1 lock held by in:imklog/7808:
[  717.971412]  #0: 0000000037d29c1d (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310
[  717.979728] 2 locks held by syz-executor418/8117:
[  717.984881]  #0: 000000007b48497e (sb_writers#11){.+.+}, at: mnt_want_write+0x3a/0xb0
[  717.993136]  #1: 00000000e2cd62d2 (&sb->s_type->i_mutex_key#17){+.+.}, at: fuse_open_common+0x1bc/0x2c0
[  718.002708] 
[  718.004644] =============================================
[  718.004644] 
[  718.011688] NMI backtrace for cpu 0
[  718.015407] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
[  718.022856] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  718.032209] Call Trace:
[  718.034804]  dump_stack+0x1fc/0x2ef
[  718.038419]  nmi_cpu_backtrace.cold+0x63/0xa2
[  718.042907]  ? lapic_can_unplug_cpu+0x80/0x80
[  718.047393]  nmi_trigger_cpumask_backtrace+0x1a6/0x1f0
[  718.052697]  watchdog+0x991/0xe60
[  718.056137]  ? reset_hung_task_detector+0x30/0x30
[  718.060984]  kthread+0x33f/0x460
[  718.064331]  ? kthread_park+0x180/0x180
[  718.068288]  ret_from_fork+0x24/0x30
[  718.072081] Sending NMI from CPU 0 to CPUs 1:
[  718.076779] NMI backtrace for cpu 1 skipped: idling at native_safe_halt+0xe/0x10
[  718.077730] Kernel panic - not syncing: hung_task: blocked tasks
[  718.090466] CPU: 0 PID: 1570 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0
[  718.097919] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
[  718.107255] Call Trace:
[  718.109831]  dump_stack+0x1fc/0x2ef
[  718.113448]  panic+0x26a/0x50e
[  718.116623]  ? __warn_printk+0xf3/0xf3
[  718.120496]  ? lapic_can_unplug_cpu+0x80/0x80
[  718.124986]  ? ___preempt_schedule+0x16/0x18
[  718.129394]  ? watchdog+0x991/0xe60
[  718.133003]  ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0
[  718.138442]  watchdog+0x9a2/0xe60
[  718.141880]  ? reset_hung_task_detector+0x30/0x30
[  718.146702]  kthread+0x33f/0x460
[  718.150138]  ? kthread_park+0x180/0x180
[  718.154099]  ret_from_fork+0x24/0x30
[  718.158082] Kernel Offset: disabled
[  718.161699] Rebooting in 86400 seconds..