Warning: Permanently added '10.128.1.60' (ECDSA) to the list of known hosts.
[  721.493810][ T1661] INFO: task syz-executor673:8496 can't die for more than 143 seconds.
[  721.502369][ T1661] task:syz-executor673 state:R  running task     stack:25752 pid: 8496 ppid:  8491 flags:0x00004006
[  721.516196][ T1661] Call Trace:
[  721.519547][ T1661]  ? rcu_is_watching+0xe/0xc0
[  721.526418][ T1661]  ? lock_release+0x5b7/0x710
[  721.531314][ T1661]  ? ilookup5_nowait+0x7e/0xb0
[  721.539619][ T1661]  ? do_raw_spin_unlock+0x171/0x230
[  721.546242][ T1661]  ? _raw_spin_lock+0x2a/0x40
[  721.551059][ T1661]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.558180][ T1661]  ? fuse_init_file_inode+0x1e0/0x1e0
[  721.565004][ T1661]  ? ___might_sleep+0x202/0x2c0
[  721.570003][ T1661]  ? __sanitizer_cov_trace_const_cmp1+0x22/0x80
[  721.577893][ T1661]  ? iget5_locked+0x41/0x220
[  721.582551][ T1661]  ? fuse_iget+0x271/0x610
[  721.588599][ T1661]  ? fuse_change_attributes+0x610/0x610
[  721.595282][ T1661]  ? fuse_simple_request+0x3e8/0xd10
[  721.600626][ T1661]  ? fuse_lookup_name+0x447/0x630
[  721.607277][ T1661]  ? fuse_create+0x30/0x30
[  721.611736][ T1661]  ? find_held_lock+0x2d/0x110
[  721.618378][ T1661]  ? fuse_lookup.part.0+0xdf/0x390
[  721.625053][ T1661]  ? fuse_lookup_name+0x630/0x630
[  721.630261][ T1661]  ? lockdep_init_map_waits+0x26a/0x720
[  721.637451][ T1661]  ? fuse_lookup+0x70/0x90
[  721.641927][ T1661]  ? __lookup_slow+0x24c/0x480
[  721.648990][ T1661]  ? page_put_link+0x210/0x210
[  721.654970][ T1661]  ? inode_permission.part.0+0xab/0x410
[  721.660595][ T1661]  ? walk_component+0x418/0x6a0
[  721.668471][ T1661]  ? handle_dots.part.0+0x1520/0x1520
[  721.674983][ T1661]  ? walk_component+0x6a0/0x6a0
[  721.679986][ T1661]  ? path_lookupat+0x1ba/0x830
[  721.686538][ T1661]  ? filename_lookup+0x19f/0x560
[  721.691535][ T1661]  ? may_linkat+0x2b0/0x2b0
[  721.697787][ T1661]  ? getname_kernel+0x4e/0x370
[  721.702667][ T1661]  ? memcpy+0x39/0x60
[  721.708680][ T1661]  ? getname_kernel+0x21e/0x370
[  721.715680][ T1661]  ? unix_find_other+0xd1/0x6f0
[  721.720664][ T1661]  ? unix_stream_recvmsg+0xf0/0xf0
[  721.727383][ T1661]  ? unix_dgram_sendmsg+0xc73/0x1a80
[  721.733102][ T1661]  ? unix_stream_sendpage+0xcb0/0xcb0
[  721.740484][ T1661]  ? aa_af_perm+0x230/0x230
[  721.746174][ T1661]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[  721.755475][ T1661]  ? unix_stream_sendpage+0xcb0/0xcb0
[  721.760901][ T1661]  ? sock_sendmsg+0xcf/0x120
[  721.767964][ T1661]  ? ____sys_sendmsg+0x331/0x810
[  721.773042][ T1661]  ? kernel_sendmsg+0x50/0x50
[  721.779378][ T1661]  ? do_recvmmsg+0x6c0/0x6c0
[  721.785085][ T1661]  ? __lock_acquire+0x16b7/0x5500
[  721.790178][ T1661]  ? ___sys_sendmsg+0xf3/0x170
[  721.797784][ T1661]  ? sendmsg_copy_msghdr+0x160/0x160
[  721.803140][ T1661]  ? find_held_lock+0x2d/0x110
[  721.809580][ T1661]  ? 0xffffffff81000000
[  721.814787][ T1661]  ? __sys_sendmmsg+0x195/0x470
[  721.819692][ T1661]  ? __ia32_sys_sendmsg+0xb0/0xb0
[  721.826277][ T1661]  ? lock_downgrade+0x6d0/0x6d0
[  721.831219][ T1661]  ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70
[  721.839040][ T1661]  ? fd_install+0x215/0x640
[  721.844833][ T1661]  ? __do_sys_futex+0x2a2/0x470
[  721.849783][ T1661]  ? __do_sys_futex+0x2ab/0x470
[  721.856168][ T1661]  ? __x64_sys_sendmmsg+0x99/0x100
[  721.864918][ T1661]  ? syscall_enter_from_user_mode+0x1d/0x50
[  721.870938][ T1661]  ? do_syscall_64+0x2d/0x70
[  721.877801][ T1661]  ? entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  721.885092][ T1661] 
[  721.885092][ T1661] Showing all locks held in the system:
[  721.892844][ T1661] 1 lock held by khungtaskd/1661:
[  721.899456][ T1661]  #0: ffffffff8b363660 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[  721.910666][ T1661] 1 lock held by in:imklog/8166:
[  721.916689][ T1661]  #0: ffff888012879270 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100
[  721.928274][ T1661] 2 locks held by syz-executor673/8496:
[  721.934887][ T1661] 
[  721.937238][ T1661] =============================================
[  721.937238][ T1661] 
[  721.947253][ T1661] Kernel panic - not syncing: hung_task: blocked tasks
[  721.954132][ T1661] CPU: 1 PID: 1661 Comm: khungtaskd Not tainted 5.10.0-next-20201223-syzkaller #0
[  721.963354][ T1661] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  721.973524][ T1661] Call Trace:
[  721.976825][ T1661]  dump_stack+0x107/0x163
[  721.981241][ T1661]  panic+0x306/0x73d
[  721.985176][ T1661]  ? __warn_printk+0xf3/0xf3
[  721.989805][ T1661]  ? watchdog.cold+0x22d/0x248
[  721.994622][ T1661]  watchdog.cold+0x23e/0x248
[  721.999261][ T1661]  ? trace_sched_process_hang+0x280/0x280
[  722.005113][ T1661]  kthread+0x3b1/0x4a0
[  722.009270][ T1661]  ? kthread_create_worker_on_cpu+0xf0/0xf0
[  722.015190][ T1661]  ret_from_fork+0x1f/0x30
[  722.020263][ T1661] Kernel Offset: disabled
[  722.024661][ T1661] Rebooting in 86400 seconds..