INFO: task syz-executor:5217 blocked for more than 143 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D
 stack:20896 pid:5217  tgid:5217  ppid:1      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x1843/0x4ae0 kernel/sched/core.c:6675
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6767
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2591
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xa37/0xc50 kernel/workqueue.c:4217
 flush_work kernel/workqueue.c:4238 [inline]
 flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4260
 invalidate_dquots fs/quota/dquot.c:577 [inline]
 dquot_disable+0x7a7/0x1cd0 fs/quota/dquot.c:2295
 ocfs2_disable_quotas+0xf3/0x210 fs/ocfs2/super.c:963
 ocfs2_dismount_volume+0x1ad/0x8f0 fs/ocfs2/super.c:1870
 generic_shutdown_super+0x139/0x2d0 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1696
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:228
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:939
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 __do_sys_exit_group kernel/exit.c:1099 [inline]
 __se_sys_exit_group kernel/exit.c:1097 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097
 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb34937dff9
RSP: 002b:00007fffeb4b2328 EFLAGS: 00000246
 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fb3493f0159 RCX: 00007fb34937dff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 000000000000000d R08: 00007fffeb4b00c6 R09: 00007fffeb4b35e0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffeb4b35e0
R13: 00007fb3493f0134 R14: 0000000000011b5a R15: 00007fffeb4b46a0
 </TASK>
INFO: task syz-executor:5230 blocked for more than 147 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:18864 pid:5230  tgid:5230  ppid:1      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x1843/0x4ae0 kernel/sched/core.c:6675
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6767
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2591
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xa37/0xc50 kernel/workqueue.c:4217
 flush_work kernel/workqueue.c:4238 [inline]
 flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4260
 invalidate_dquots fs/quota/dquot.c:577 [inline]
 dquot_disable+0x7a7/0x1cd0 fs/quota/dquot.c:2295
 ext4_quota_off+0xf2/0x540 fs/ext4/super.c:7121
 ext4_quotas_off fs/ext4/super.c:1185 [inline]
 ext4_put_super+0xee/0xd50 fs/ext4/super.c:1300
 generic_shutdown_super+0x139/0x2d0 fs/super.c:642
 kill_block_super+0x44/0x90 fs/super.c:1696
 ext4_kill_sb+0x68/0xa0 fs/ext4/super.c:7320
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:228
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:939
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 __do_sys_exit_group kernel/exit.c:1099 [inline]
 __se_sys_exit_group kernel/exit.c:1097 [inline]
 __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1097
 x64_sys_call+0x2634/0x2640 arch/x86/include/generated/asm/syscalls_64.h:232
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fed5e97dff9
RSP: 002b:00007fffb8a60f78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fed5e9f0159 RCX: 00007fed5e97dff9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000075 R08: 00007fffb8a5ed15 R09: 00007fffb8a62230
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffb8a62230
R13: 00007fed5e9f0134 R14: 0000000000013c78 R15: 00007fffb8a632f0
 </TASK>
INFO: task syz.2.50:5637 blocked for more than 150 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00165-g360c1f1f24c6 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.50        state:D
 stack:19392 pid:5637  tgid:5636  ppid:5220   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5315 [inline]
 __schedule+0x1843/0x4ae0 kernel/sched/core.c:6675
 __schedule_loop kernel/sched/core.c:6752 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6767
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2591
 do_wait_for_common kernel/sched/completion.c:95 [inline]
 __wait_for_common kernel/sched/completion.c:116 [inline]
 wait_for_common kernel/sched/completion.c:127 [inline]
 wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
 __flush_work+0xa37/0xc50 kernel/workqueue.c:4217
 flush_work kernel/workqueue.c:4238 [inline]
 flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4260
 invalidate_dquots fs/quota/dquot.c:577 [inline]
 dquot_disable+0x7a7/0x1cd0 fs/quota/dquot.c:2295
 ext4_orphan_cleanup+0x100c/0x13d0 fs/ext4/orphan.c:504
 __ext4_fill_super fs/ext4/super.c:5563 [inline]
 ext4_fill_super+0x64d4/0x6e60 fs/ext4/super.c:5686
 get_tree_bdev+0x3f7/0x570 fs/super.c:1635
 vfs_get_tree+0x90/0x2b0 fs/super.c:1800
 do_new_mount+0x2be/0xb40 fs/namespace.c:3507
 do_mount fs/namespace.c:3847 [inline]
 __do_sys_mount fs/namespace.c:4055 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:4032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6c38b7f79a
RSP: 002b:00007f6c3997de68 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f6c3997def0 RCX: 00007f6c38b7f79a
RDX: 0000000020000080 RSI: 0000000020000100 RDI: 00007f6c3997deb0
RBP: 0000000020000080 R08: 00007f6c3997def0 R09: 0000000000000041
R10: 0000000000000041 R11: 0000000000000246 R12: 0000000020000100
R13: 00007f6c3997deb0 R14: 000000000000050a R15: 00000000200008c0
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/30:
 #0: 
ffffffff8e937de0
 (
rcu_read_lock
){....}-{1:2}
, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
7 locks held by kworker/u8:3/52:
2 locks held by kworker/u8:5/159:
2 locks held by getty/4976:
 #0: ffff88802e4220a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5217:
 #0: ffff88806ebc20e0 (&type->s_umount_key#65){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff88806ebc20e0 (&type->s_umount_key#65){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff88806ebc20e0 (&type->s_umount_key#65){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz-executor/5230:
 #0: ffff88801b3cc0e0 (&type->s_umount_key#31){++++}-{3:3}, at: __super_lock fs/super.c:56 [inline]
 #0: ffff88801b3cc0e0 (&type->s_umount_key#31){++++}-{3:3}, at: __super_lock_excl fs/super.c:71 [inline]
 #0: ffff88801b3cc0e0 (&type->s_umount_key#31){++++}-{3:3}, at: deactivate_super+0xb5/0xf0 fs/super.c:505
5 locks held by kworker/u9:8/5234:
 #0: ffff88807171e948 (
(wq_completion)hci2
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3204 [inline]
, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
 #1: 
ffffc90004097d00
 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
 #2: 
ffff88802b900d80
 (
&hdev->req_lock
){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327
 #3: 
ffff88802b900078
 (
&hdev->lock){+.+.}-{3:3}
, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5567
 #4: 
ffffffff8fe2bde8
 (
hci_cb_list_lock
){+.+.}-{3:3}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1957 [inline]
, at: hci_conn_failed+0x15d/0x300 net/bluetooth/hci_conn.c:1262
1 lock held by syz-executor/5487:
 #0: 
ffff88805dee40e0
 (
&type->s_umount_key
#31
){++++}-{3:3}
, at: __super_lock fs/super.c:56 [inline]
, at: __super_lock_excl fs/super.c:71 [inline]
, at: deactivate_super+0xb5/0xf0 fs/super.c:505
1 lock held by syz.2.50/5637:
 #0: 
ffff88807b68a0e0 (&type->s_umount_key
#27
/1
){+.+.}-{3:3}
, at: alloc_super+0x221/0x9d0 fs/super.c:344
1 lock held by syz-executor/6221:
 #0: 
ffff88802a89c0e0
 (