INFO: task syz-executor:8692 blocked for more than 143 seconds.
      Not tainted 6.12.0-rc5-syzkaller-00198-g9eaff63bfb59 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21176 pid:8692  tgid:8692  ppid:1      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 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
 __cancel_work_sync+0xbc/0x110 kernel/workqueue.c:4337
 hidp_session_remove+0x64/0x260 net/bluetooth/hidp/core.c:1169
 l2cap_unregister_all_users net/bluetooth/l2cap_core.c:1746 [inline]
 l2cap_conn_del+0x227/0x690 net/bluetooth/l2cap_core.c:1773
 hci_disconn_cfm include/net/bluetooth/hci_core.h:1975 [inline]
 hci_conn_hash_flush+0xff/0x240 net/bluetooth/hci_conn.c:2592
 hci_dev_close_sync+0xa42/0x11c0 net/bluetooth/hci_sync.c:5205
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2698
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:664
 __fput+0x23f/0x880 fs/file_table.c:431
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [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: 0033:0x7ff686f7e719
RSP: 002b:00007fff48eb5878 EFLAGS: 00000246
 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007ff686f7e719
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000043
RBP: 00007ff686fde5b0 R08: 00007fff48eb3617 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 0000000000000003 R14: 00000000ffffffff R15: 00007fff48eb5a20
 </TASK>
INFO: task khidpd_0c451010:8856 blocked for more than 147 seconds.
      Not tainted 6.12.0-rc5-syzkaller-00198-g9eaff63bfb59 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:khidpd_0c451010 state:D
 stack:28256 pid:8856  tgid:8856  ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5328 [inline]
 __schedule+0x18af/0x4bd0 kernel/sched/core.c:6690
 __schedule_loop kernel/sched/core.c:6767 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6782
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6839
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
 l2cap_unregister_user+0x6a/0x1c0 net/bluetooth/l2cap_core.c:1726
 hidp_session_thread+0x450/0x490 net/bluetooth/hidp/core.c:1304
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2698
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:664
RIP: 0033:0x7faeef77e719
){....}-{1:2}
 #0: 
 (
, at: process_one_work kernel/workqueue.c:3204 [inline]
, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
 #1: 
net_cleanup_work
){+.+.}-{0:0}
 #1: 
(work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}
 #2: 
ffff8880280e0d80
 (
&hdev->req_lock
){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:331
, at: hci_abort_conn_sync+0x1ea/0xe00 net/bluetooth/hci_sync.c:5577