Warning: Permanently added '10.128.0.96' (ECDSA) to the list of known hosts.
[  721.123187][ T1664] INFO: task syz-executor200:8507 can't die for more than 143 seconds.
[  721.131772][ T1664] task:syz-executor200 state:R  running task     stack:27512 pid: 8507 ppid:  8502 flags:0x00004006
[  721.144741][ T1664] Call Trace:
[  721.148096][ T1664]  ? rcu_read_lock_sched_held+0x1c/0x70
[  721.155606][ T1664]  ? lock_release+0x710/0x710
[  721.160351][ T1664]  ? lock_release+0x710/0x710
[  721.166701][ T1664]  ? iget5_locked+0xcc/0x2d0
[  721.171390][ T1664]  ? _raw_spin_lock+0x2a/0x40
[  721.177448][ T1664]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.182886][ T1664]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.189504][ T1664]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.195772][ T1664]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.201168][ T1664]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.207781][ T1664]  ? iget5_locked+0x1be/0x2d0
[  721.212488][ T1664]  ? fuse_inode_eq+0x80/0x80
[  721.218484][ T1664]  ? fuse_iget+0x271/0x610
[  721.222931][ T1664]  ? fuse_change_attributes+0x610/0x610
[  721.229637][ T1664]  ? fuse_simple_request+0x3e8/0xd10
[  721.235806][ T1664]  ? fuse_lookup_name+0x447/0x630
[  721.240862][ T1664]  ? fuse_create+0x30/0x30
[  721.246466][ T1664]  ? find_held_lock+0x2d/0x110
[  721.251286][ T1664]  ? fuse_lookup.part.0+0xdf/0x390
[  721.257848][ T1664]  ? fuse_lookup_name+0x630/0x630
[  721.262925][ T1664]  ? lockdep_init_map_waits+0x26a/0x720
[  721.269840][ T1664]  ? fuse_lookup+0x70/0x90
[  721.275406][ T1664]  ? __lookup_slow+0x24c/0x480
[  721.280256][ T1664]  ? page_put_link+0x210/0x210
[  721.286321][ T1664]  ? inode_permission.part.0+0xab/0x410
[  721.291902][ T1664]  ? walk_component+0x418/0x6a0
[  721.298045][ T1664]  ? handle_dots.part.0+0x1520/0x1520
[  721.304219][ T1664]  ? walk_component+0x6a0/0x6a0
[  721.309104][ T1664]  ? path_lookupat+0x1ba/0x830
[  721.315157][ T1664]  ? filename_lookup+0x19f/0x560
[  721.320121][ T1664]  ? may_linkat+0x2b0/0x2b0
[  721.325915][ T1664]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[  721.332269][ T1664]  ? __check_object_size+0x171/0x3f0
[  721.338720][ T1664]  ? __sanitizer_cov_trace_const_cmp8+0x1d/0x70
[  721.345799][ T1664]  ? strncpy_from_user+0x2a0/0x3e0
[  721.350987][ T1664]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[  721.358372][ T1664]  ? getname_flags.part.0+0x1dd/0x4f0
[  721.365054][ T1664]  ? __x64_sys_mount+0x1ea/0x300
[  721.370121][ T1664]  ? copy_mnt_ns+0xae0/0xae0
[  721.377183][ T1664]  ? syscall_enter_from_user_mode+0x1d/0x50
[  721.384133][ T1664]  ? do_syscall_64+0x2d/0x70
[  721.388752][ T1664]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  721.396424][ T1664] 
[  721.396424][ T1664] Showing all locks held in the system:
[  721.405227][ T1664] 1 lock held by khungtaskd/1664:
[  721.410269][ T1664]  #0: ffffffff8b373fe0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  721.421369][ T1664] 1 lock held by in:imklog/8173:
[  721.427276][ T1664]  #0: ffff8880262ea870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[  721.438456][ T1664] 2 locks held by syz-executor200/8507:
[  721.444822][ T1664] 
[  721.447154][ T1664] =============================================
[  721.447154][ T1664] 
[  721.456857][ T1664] Kernel panic - not syncing: hung_task: blocked tasks
[  721.463765][ T1664] CPU: 0 PID: 1664 Comm: khungtaskd Not tainted 5.11.0-rc2-next-20210108-syzkaller #0
[  721.473421][ T1664] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  721.483484][ T1664] Call Trace:
[  721.486782][ T1664]  dump_stack+0x107/0x163
[  721.491197][ T1664]  panic+0x306/0x73d
[  721.495101][ T1664]  ? __warn_printk+0xf3/0xf3
[  721.499711][ T1664]  ? watchdog.cold+0x22d/0x248
[  721.504504][ T1664]  watchdog.cold+0x23e/0x248
[  721.509123][ T1664]  ? trace_sched_process_hang+0x280/0x280
[  721.514854][ T1664]  kthread+0x3b1/0x4a0
[  721.518958][ T1664]  ? kthread_create_worker_on_cpu+0xf0/0xf0
[  721.524878][ T1664]  ret_from_fork+0x1f/0x30
[  721.530354][ T1664] Kernel Offset: disabled
[  721.534682][ T1664] Rebooting in 86400 seconds..