INFO: task syz-executor.3:24981 blocked for more than 143 seconds.
      Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D
 stack:24632 pid:24981 tgid:24981 ppid:5509   flags:0x00000006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5409 [inline]
 __schedule+0x1781/0x49d0 kernel/sched/core.c:6736
 __schedule_loop kernel/sched/core.c:6813 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6828
 schedule_timeout+0xb0/0x310 kernel/time/timer.c:2548
 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+0xa7b/0xc90 kernel/workqueue.c:4205
 __cancel_work_sync+0x330/0x6d0 kernel/workqueue.c:4304
 uhid_dev_destroy drivers/hid/uhid.c:584 [inline]
 uhid_char_release+0xaf/0x600 drivers/hid/uhid.c:662
 __fput+0x429/0x8a0 fs/file_table.c:422
 __do_sys_close fs/open.c:1556 [inline]
 __se_sys_close fs/open.c:1541 [inline]
 __x64_sys_close+0x7f/0x110 fs/open.c:1541
 do_syscall_64+0xfb/0x240
 entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fdf8407cc9a
RSP: 002b:00007ffd17d6b330 EFLAGS: 00000293
 ORIG_RAX: 0000000000000003
RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fdf8407cc9a
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000032 R08: 0000001b32f60000 R09: 00007fdf841ac12c
R10: 00007ffd17d6b480 R11: 0000000000000293 R12: 00007fdf83c01ad8
R13: ffffffffffffffff R14: 00007fdf83c00000 R15: 000000000006a6bd
 </TASK>

Showing all locks held in the system:
3 locks held by kworker/0:1/8:
3 locks held by kworker/1:0/24:
1 lock held by khungtaskd/29:
 #0: 
ffffffff8e132020
 (
rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
5 locks held by kworker/u8:2/42:
3 locks held by kworker/u9:0/52:
 #0: ffff88805cdc9148 ((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
 #0: ffff88805cdc9148 ((wq_completion)hci4){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335
 #1: 
ffffc90000bc7d00
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3230 [inline]
, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335
 #2: 
ffff88802952d060 (&hdev->req_lock){+.+.}-{3:3}, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:309
3 locks held by kworker/0:2/783:
3 locks held by kworker/1:2/928:
 #0: 
ffff888014c78948
 (
(wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3229 [inline]
, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335
 #1: 
ffffc900040dfd00
 (
(linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
(linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x1770 kernel/workqueue.c:3335
 #2: ffffffff8f37b588
 (
rtnl_mutex
){+.+.}-{3:3}
, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:276
3 locks held by kworker/u8:7/1276:
 #0: 
ffff88802a075148
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x1770 kernel/workqueue.c:3335
 #1: 
ffffc90004cb7d00
 (