INFO: task syz-executor:11568 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:22312 pid:11568 tgid:11568 ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x1821/0x5740
 schedule+0x164/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7f7/0x1550
 lmLogClose+0xb4/0x520
 jfs_umount+0x2fb/0x3d0
 jfs_put_super+0x8c/0x190
 generic_shutdown_super+0x13d/0x2d0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x437/0x4d0
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xf3/0x4d0
 do_syscall_64+0x33e/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb95dd9e017
RSP: 002b:00007fff517db6f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fb95de32120 RCX: 00007fb95dd9e017
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff517db7b0
RBP: 00007fff517db7b0 R08: 00007fff517dc7b0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff517dc840
R13: 00007fb95de32120 R14: 000000000004861d R15: 00007fff517dc880
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e95cd60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by kworker/u9:5/3399:
2 locks held by getty/5439:
 #0: ffff88816af430a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034762e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13a0
3 locks held by kworker/u8:3/5670:
 #0: ffff888111f3f940 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90006b77c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffffffff8fdd00c0 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x11e/0x14c0
3 locks held by kworker/1:9/8312:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc900066f7c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffff88817264a250 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x202/0x3d0
2 locks held by syz-executor/10783:
 #0: ffff88811e39c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/11568:
 #0: ffff88810b8700d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.3.830/11907:
 #0: ffff88811e39c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.3.830/11908:
 #0: ffff88811e39c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz.3.830/11909:
 #0: ffff88811e39c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
2 locks held by syz-executor/12355:
 #0: ffff88811190a0d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.8.964/12884:
 #0: ffff88811e39c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x289/0x3d0
2 locks held by syz-executor/13352:
 #0: ffff88811c41c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz.4.1027/13648:
 #0: ffff8881bb67e0d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
3 locks held by kworker/0:10/14124:
 #0: ffff88810006b140 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0xa35/0x1860
 #1: ffffc90007f97c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0xa70/0x1860
 #2: ffff88819d439250 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x202/0x3d0
2 locks held by syz.3.1050/14142:
 #0: ffff88819b4260d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.7.1078/14223:
 #0: ffff88810b8700d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x289/0x3d0
1 lock held by syz.9.1092/14327:
 #0: ffff88811190a0d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x289/0x3d0
2 locks held by syz-executor/14336:
 #0: ffff8881ba1ac0d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/14664:
 #0: ffff88811720a0d8 (&type->s_umount_key#57){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8edf8480 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.1.1189/15021:
 #0: ffff88811c41c0d8 (&type->s_umount_key#57){++++}-{4:4}, at: super_lock+0x289/0x3d0
3 locks held by syz-executor/15190:
 #0: ffffffff8fdd00c0 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x883/0x1bb0
 #1: ffff88801d261590 (&wg->device_update_lock){+.+.}-{4:4}, at: wg_open+0x227/0x420
 #2: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
1 lock held by syz-executor/15213:
 #0: ffffffff8fdd00c0 (rtnl_mutex){+.+.}-{4:4}, at: inet6_rtm_newaddr+0x65f/0xe30
2 locks held by dhcpcd/15350:
 #0: ffff8881a18cc260 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe10
 #1: ffffffff8e963068 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x2d0/0x770
1 lock held by dhcpcd/15351:
 #0: ffff8881a4734260 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x33/0xe10

=============================================

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 34 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xfd3/0x1030
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 8987 Comm: kworker/0:9 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: wg-kex-wg1 wg_packet_handshake_receive_worker
RIP: 0010:__lock_acquire+0x17c0/0x2cf0
Code: 05 85 cb 9f 14 31 ff 45 31 e4 4d 85 e4 4c 8b 6c 24 10 74 30 49 8b 44 24 30 48 85 c0 74 26 48 8b 40 10 48 83 c0 30 49 8b 0c 24 <48> 89 8c 24 d8 00 00 00 48 39 c1 74 0d 4c 8b a4 24 d8 00 00 00 4d
RSP: 0018:ffffc900067a7340 EFLAGS: 00000082
RAX: ffffffff93e26670 RBX: 00000000000003fd RCX: ffffffff96d4bf28
RDX: ffffffff96cc9618 RSI: ffff88810e138c30 RDI: 00000000000003fd
RBP: fe59f9fe70e95f06 R08: ffffc900067a7308 R09: 0000000000000020
R10: 0000000000000003 R11: ffffffff81a21f90 R12: ffffffff96d4b278
R13: ffff88810e138c30 R14: ffff88810e138000 R15: 00000000000002a7
FS:  0000000000000000(0000) GS:ffff88818dc8c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3988529000 CR3: 000000019183e000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_acquire+0x106/0x350
 seqcount_lockdep_reader_access+0x55/0x100
 ktime_get+0x45/0x220
 clockevents_program_event+0x290/0x630
 __hrtimer_rearm_deferred+0x270/0x450
 irqentry_exit+0x6d5/0x760
 asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80
Code: f7 e8 3d e7 f6 f5 f7 c3 00 02 00 00 74 05 e8 30 7d 22 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 <e8> 14 68 e8 f5 65 8b 05 0d d0 8d 07 85 c0 74 18 5b 41 5e c3 cc cc
RSP: 0018:ffffc900067a7790 EFLAGS: 00000206
RAX: 0000000000000002 RBX: 0000000000000287 RCX: 0000000080000201
RDX: 0000000000000002 RSI: ffffffff8dfa6840 RDI: 0000000000000001
RBP: 00000000ffffffff R08: ffffffff9030b6f7 R09: 1ffffffff20616de
R10: dffffc0000000000 R11: fffffbfff20616df R12: ffff888121026100
R13: dffffc0000000000 R14: ffff888121026100 R15: 0000000000000287
 __mod_timer+0xb37/0xf30
 wg_timers_session_derived+0x1b9/0x290
 wg_packet_handshake_receive_worker+0x711/0x10c0
 process_scheduled_works+0xb5d/0x1860
 worker_thread+0xa53/0xfc0
 kthread+0x388/0x470
 ret_from_fork+0x514/0xb70
 ret_from_fork_asm+0x1a/0x30
 </TASK>
