Warning: Permanently added '10.128.0.117' (ECDSA) to the list of known hosts.
syzkaller login: [  721.359820][ T1659] INFO: task syz-executor279:8462 can't die for more than 143 seconds.
[  721.368310][ T1659] task:syz-executor279 state:R  running task     stack:27896 pid: 8462 ppid:  8457 flags:0x00004006
[  721.383931][ T1659] Call Trace:
[  721.387281][ T1659]  ? find_held_lock+0x2d/0x110
[  721.393380][ T1659]  ? lock_release+0x710/0x710
[  721.398080][ T1659]  ? find_inode+0x1b8/0x220
[  721.403783][ T1659]  ? ilookup5_nowait+0x5e/0xb0
[  721.408567][ T1659]  ? do_raw_spin_lock+0x120/0x2b0
[  721.414749][ T1659]  ? lock_release+0x710/0x710
[  721.419448][ T1659]  ? ilookup5_nowait+0x7e/0xb0
[  721.425394][ T1659]  ? do_raw_spin_unlock+0x171/0x230
[  721.431384][ T1659]  ? ilookup5_nowait+0x5e/0xb0
[  721.436167][ T1659]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.442761][ T1659]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.448177][ T1659]  ? iget5_locked+0x41/0x220
[  721.453918][ T1659]  ? fuse_inode_eq+0x80/0x80
[  721.458537][ T1659]  ? fuse_iget+0x271/0x610
[  721.464080][ T1659]  ? fuse_change_attributes+0x610/0x610
[  721.470408][ T1659]  ? fuse_simple_request+0x3e8/0xd10
[  721.475724][ T1659]  ? fuse_lookup_name+0x447/0x630
[  721.481862][ T1659]  ? fuse_create+0x30/0x30
[  721.486302][ T1659]  ? find_held_lock+0x2d/0x110
[  721.492416][ T1659]  ? mark_held_locks+0x9f/0xe0
[  721.497219][ T1659]  ? fuse_lookup.part.0+0xdf/0x390
[  721.503467][ T1659]  ? d_alloc_parallel+0x8fe/0x19b0
[  721.508700][ T1659]  ? fuse_lookup_name+0x630/0x630
[  721.516133][ T1659]  ? lock_downgrade+0x6d0/0x6d0
[  721.521748][ T1659]  ? __d_lookup+0x3ff/0x6f0
[  721.526288][ T1659]  ? fuse_atomic_open+0x2de/0x440
[  721.532592][ T1659]  ? fuse_lookup+0x90/0x90
[  721.537040][ T1659]  ? lookup_open.isra.0+0xc09/0x1350
[  721.543577][ T1659]  ? nd_jump_root+0x570/0x570
[  721.548340][ T1659]  ? path_openat+0x96d/0x2730
[  721.554340][ T1659]  ? path_lookupat+0x830/0x830
[  721.559220][ T1659]  ? lockdep_hardirqs_on_prepare+0x400/0x400
[  721.566519][ T1659]  ? do_filp_open+0x17e/0x3c0
[  721.571999][ T1659]  ? may_open_dev+0xf0/0xf0
[  721.576534][ T1659]  ? do_raw_spin_lock+0x120/0x2b0
[  721.583070][ T1659]  ? rwlock_bug.part.0+0x90/0x90
[  721.588038][ T1659]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[  721.595522][ T1659]  ? _raw_spin_unlock+0x24/0x40
[  721.601430][ T1659]  ? alloc_fd+0x2bc/0x640
[  721.605795][ T1659]  ? do_sys_openat2+0x16d/0x420
[  721.611978][ T1659]  ? build_open_flags+0x680/0x680
[  721.617042][ T1659]  ? __x64_sys_openat+0x13f/0x1f0
[  721.623137][ T1659]  ? __ia32_sys_open+0x1c0/0x1c0
[  721.628101][ T1659]  ? syscall_enter_from_user_mode+0x1d/0x50
[  721.635284][ T1659]  ? do_syscall_64+0x2d/0x70
[  721.641814][ T1659]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  721.648000][ T1659] 
[  721.648000][ T1659] Showing all locks held in the system:
[  721.657043][ T1659] 1 lock held by khungtaskd/1659:
[  721.664116][ T1659]  #0: ffffffff8b363660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  721.674785][ T1659] 1 lock held by in:imklog/8164:
[  721.680598][ T1659]  #0: ffff88801859c0f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[  721.690523][ T1659] 2 locks held by syz-executor279/8462:
[  721.696107][ T1659] 
[  721.698427][ T1659] =============================================
[  721.698427][ T1659] 
[  721.708377][ T1659] Kernel panic - not syncing: hung_task: blocked tasks
[  721.715233][ T1659] CPU: 1 PID: 1659 Comm: khungtaskd Not tainted 5.10.0-next-20201223-syzkaller #0
[  721.724433][ T1659] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  721.734484][ T1659] Call Trace:
[  721.737761][ T1659]  dump_stack+0x107/0x163
[  721.742133][ T1659]  panic+0x306/0x73d
[  721.746036][ T1659]  ? __warn_printk+0xf3/0xf3
[  721.750629][ T1659]  ? watchdog.cold+0x22d/0x248
[  721.755404][ T1659]  watchdog.cold+0x23e/0x248
[  721.759994][ T1659]  ? trace_sched_process_hang+0x280/0x280
[  721.765726][ T1659]  kthread+0x3b1/0x4a0
[  721.769843][ T1659]  ? kthread_create_worker_on_cpu+0xf0/0xf0
[  721.775742][ T1659]  ret_from_fork+0x1f/0x30
[  721.781265][ T1659] Kernel Offset: disabled
[  721.785599][ T1659] Rebooting in 86400 seconds..