INFO: task syz.7.967:11215 blocked for more than 143 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.967       state:D stack:25448 pid:11215 tgid:11213 ppid:8001   task_flags:0x400040 flags:0x00004004
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 hfsplus_find_init+0x15a/0x1d0
 hfsplus_lookup+0x19c/0x890
 lookup_one_qstr_excl+0x131/0x360
 filename_create+0x224/0x3c0
 do_mknodat+0x184/0x4d0
 __x64_sys_mknod+0x8c/0xa0
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e1618eba9
RSP: 002b:00007f0e17070038 EFLAGS: 00000246
 ORIG_RAX: 0000000000000085
RAX: ffffffffffffffda RBX: 00007f0e163d6090 RCX: 00007f0e1618eba9
RDX: 000000000000070f RSI: 0000000000000000 RDI: 0000200000000000
RBP: 00007f0e16211e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f0e163d6128 R14: 00007f0e163d6090 R15: 00007fffde5a2378
 </TASK>

Showing all locks held in the system:
4 locks held by kworker/u9:1/28:
 #0: 
ffff8881016d6148
 (
(wq_completion)writeback
){+.+.}-{0:0}, at: process_scheduled_works+0x9b4/0x17b0
 #1: 
ffffc9000061fbc0
 (
(work_completion)(&(&wb->dwork)->work)
){+.+.}-{0:0}
, at: process_scheduled_works+0x9ef/0x17b0
 #2: ffff8880240160e0 (&type->s_umount_key#68){++++}-{4:4}, at: super_trylock_shared+0x20/0xf0
 #3: ffff88802c5100b0 (&tree->tree_lock){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0
1 lock held by khungtaskd/34:
 #0: ffffffff8e13a0e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5674:
 #0: 
ffff888108d510a0
 (
&tty->ldisc_sem
){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70
 #1: 
ffffc900029132f0
 (
&ldata->atomic_read_lock
){+.+.}-{4:4}
, at: n_tty_read+0x43e/0x1400
3 locks held by kworker/1:7/8149:
 #0: 
ffff888100ac9d48
 (
(wq_completion)pm
){+.+.}-{0:0}
, at: process_scheduled_works+0x9b4/0x17b0
 #1: 
ffffc90003327bc0
 (
(work_completion)(&hub->events)
){+.+.}-{0:0}
, at: process_scheduled_works+0x9ef/0x17b0
 #2: 
ffff888136482198
 (
&dev->mutex
){....}-{4:4}
, at: hub_event+0x184/0x4a20
9 locks held by syz.7.967/11214:
3 locks held by syz.7.967/11215:
 #0: 
ffff888024016428 (sb_writers#19
){.+.+}-{0:0}
, at: mnt_want_write+0x41/0x90
 #1: 
ffff88802a2e3af8
 (
&type->i_mutex_dir_key
#12
/1
){+.+.}-{4:4}
, at: filename_create+0x1f8/0x3c0
 #2: 
ffff88802c5100b0
 (&tree->tree_lock){+.+.}-{4:4}, at: hfsplus_find_init+0x15a/0x1d0
1 lock held by syz-executor/13219:
 #0: ffffffff8e13fb78 (rcu_state.exp_mutex){+.+.}-{4:4}
, at: synchronize_rcu_expedited+0x2f6/0x730

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

NMI backtrace for cpu 0
CPU: 0 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+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x439/0x7d0
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 13219 Comm: syz-executor 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
RIP: 0010:__lock_acquire+0x38b/0xd20
Code: 00 75 19 90 48 c7 c7 ff 82 ba 8d 48 c7 c6 75 d0 a9 8d e8 b8 e5 e5 ff 90 0f 0b 90 90 90 31 c0 48 8b 3c 24 0f b6 98 c4 00 00 00 <41> 8b 46 20 25 ff 1f 00 00 48 0f a3 05 d4 fe 0a 12 73 17 48 69 c0
RSP: 0018:ffffc90004b4f780 EFLAGS: 00000006
RAX: ffffffff93497d38 RBX: 0000000000000002 RCX: 000000000000000d
RDX: 0000000000080000 RSI: 0000000000000000 RDI: ffff888108109cc0
RBP: 000000000000000d R08: 0000000000000000 R09: ffffffff81a073a0
R10: dffffc0000000000 R11: fffffbfff1bfa22c R12: 0000000000000000
R13: 0000000000000000 R14: ffff88810810a800 R15: ffff88810810a7b0
FS:  000055555f2e6500(0000) GS:ffff8881a3c15000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558df24608 CR3: 000000011b552000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_acquire+0x120/0x360
 _raw_spin_lock+0x2e/0x40
 console_flush_all+0x690/0xc40
 console_unlock+0xc4/0x270
 vprintk_emit+0x5b7/0x7a0
 __bch2_print+0x176/0x220
 bch2_fs_free+0x526/0x5a0
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x425/0x4c0
 task_work_run+0x1d4/0x260
 exit_to_user_mode_loop+0xec/0x110
 do_syscall_64+0x2bd/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f16fe78fed7
Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffa3fadf78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f16fe811c05 RCX: 00007f16fe78fed7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffa3fae030
RBP: 00007fffa3fae030 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffa3faf0c0
R13: 00007f16fe811c05 R14: 000000000007b6d8 R15: 00007fffa3faf100
 </TASK>
