INFO: task syz-executor:8234 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:18856 pid:8234  tgid:8234  ppid:1      task_flags:0x400140 flags:0x00004006
Call Trace:
 <TASK>
 __schedule+0x1798/0x4cc0
 schedule+0x165/0x360
 schedule_preempt_disabled+0x13/0x30
 __mutex_lock+0x7e6/0x1350
 lmLogClose+0xb4/0x520
 jfs_umount+0x2ef/0x3c0
 jfs_put_super+0x8c/0x190
 generic_shutdown_super+0x135/0x2c0
 kill_block_super+0x44/0x90
 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: 0033:0x7ff91758fed7
RSP: 002b:00007ffc4ea2d908 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007ff917611c05 RCX: 00007ff91758fed7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc4ea2d9c0
RBP: 00007ffc4ea2d9c0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc4ea2ea50
R13: 00007ff917611c05 R14: 0000000000032953 R15: 00007ffc4ea2ea90
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/34:
 #0: ffffffff8e139f20 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5678:
 #0: ffff88810dbdc0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900029062f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x43e/0x1400
2 locks held by kworker/u8:3/5875:
2 locks held by syz-executor/8038:
 #0: ffff8880282f60e0 (&type->s_umount_key#62){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8e56e9c8 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/8154:
 #0: ffff88802bc940e0 (&type->s_umount_key#62){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8e56e9c8 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/8234:
 #0: ffff88803cd1c0e0 (&type->s_umount_key#62){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8e56e9c8 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/8834:
 #0: ffff888124bb60e0 (&type->s_umount_key#62){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8e56e9c8 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
2 locks held by syz-executor/9336:
 #0: ffff888129a180e0 (&type->s_umount_key#62){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
 #1: ffffffff8e56e9c8 (jfs_log_mutex){+.+.}-{4:4}, at: lmLogClose+0xb4/0x520
1 lock held by syz.2.362/9465:
 #0: ffff8880282f60e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x25c/0x3b0
1 lock held by syz.4.370/9546:
 #0: ffff88803cd1c0e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.8.419/9928:
 #0: ffff888124bb60e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x25c/0x3b0
1 lock held by syz.3.433/9969:
 #0: ffff88802bc940e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x25c/0x3b0
1 lock held by syz-executor/10383:
 #0: ffff8881211d80e0 (&type->s_umount_key#62){++++}-{4:4}
, at: deactivate_super+0xa9/0xe0
1 lock held by syz.2.578/10908:
 #0: ffff8880282f60e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.4.585/10969:
 #0: ffff88803cd1c0e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.5.591/11087:
 #0: ffff888129a180e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.8.616/11179:
 #0: ffff888124bb60e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
1 lock held by syz.3.632/11245:
 #0: ffff88802bc940e0 (&type->s_umount_key#62){++++}-{4:4}, at: super_lock+0x2a9/0x3b0
2 locks held by syz.6.643/11376:
 #0: ffff88804b039f98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140
 #1: ffff88804b024008 (psi_seq){-.-.}-{0:0}, at: psi_task_switch+0x53/0x880

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

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+0x189/0x250
 nmi_cpu_backtrace+0x39e/0x3d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 watchdog+0xf93/0xfe0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 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: 5828 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+0x840/0xd20
Code: 89 ca c1 c2 04 41 29 cc 44 31 e2 44 01 f9 41 29 d7 89 d6 c1 c6 06 44 31 fe 01 ca 89 f0 c1 c0 08 29 f1 31 c8 01 d6 29 c2 89 c1 <c1> c1 10 31 d1 01 f0 41 89 cf 41 c1 c7 13 29 ce 41 31 f7 01 c1 44
RSP: 0018:ffffc9000319f8d0 EFLAGS: 00000012
RAX: 00000000efadb5f8 RBX: 0000000000000000 RCX: 00000000efadb5f8
RDX: 00000000105209fd RSI: 00000000ffef7dec RDI: ffff888108848000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8484c12a
R10: dffffc0000000000 R11: ffffed102233f581 R12: 0000000000004008
R13: ffff888108848af0 R14: ffff888108848af0 R15: 0000000000004008
FS:  0000555589602500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c30aa00 CR3: 0000000028708000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 lock_acquire+0x120/0x360
 aa_file_perm+0x157/0x1550
 common_file_perm+0x1a9/0x230
 security_file_permission+0x91/0x290
 rw_verify_area+0xbb/0x4d0
 vfs_read+0x154/0xa30
 ksys_read+0x145/0x250
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0779f8d57d
Code: a8 ff ff ff f7 d8 64 89 02 b8 ff ff ff ff eb b5 e8 a8 48 00 00 0f 1f 84 00 00 00 00 00 80 3d e1 af 21 00 00 74 17 31 c0 0f 05 <48> 3d 00 f0 ff ff 77 5b c3 66 2e 0f 1f 84 00 00 00 00 00 48 83 ec
RSP: 002b:00007ffdd773d768 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0779f8d57d
RDX: 0000000000000004 RSI: 00007ffdd773d77c RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000025eea649 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdd773db90
R13: 0000000000000004 R14: 00007ffdd773d77c R15: 00007ffdd773d810
 </TASK>
