INFO: task syz.1.764:9526 blocked for more than 143 seconds.
      Not tainted 6.11.0-rc1-next-20240729-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.764       state:D
 stack:27392 pid:9526  tgid:9523  ppid:8957   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5239 [inline]
 __schedule+0x1800/0x4a60 kernel/sched/core.c:6603
 __schedule_loop kernel/sched/core.c:6680 [inline]
 schedule+0x14b/0x320 kernel/sched/core.c:6695
 schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6752
 __mutex_lock_common kernel/locking/mutex.c:684 [inline]
 __mutex_lock+0x6a4/0xd70 kernel/locking/mutex.c:752
 do_ip_setsockopt+0x127d/0x3cd0 net/ipv4/ip_sockglue.c:1077
 ip_setsockopt+0x63/0x100 net/ipv4/ip_sockglue.c:1417
 do_sock_setsockopt+0x3af/0x720 net/socket.c:2324
 __sys_setsockopt+0x1ae/0x250 net/socket.c:2347
 __do_sys_setsockopt net/socket.c:2356 [inline]
 __se_sys_setsockopt net/socket.c:2353 [inline]
 __x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2353
 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: 0033:0x7fb95ad779f9
RSP: 002b:00007fb95bb2e048 EFLAGS: 00000246
 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007fb95af06058 RCX: 00007fb95ad779f9
RDX: 000000000000002e RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007fb95ade58ee R08: 0000000000000108 R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007fb95af06058 R15: 00007ffd86f93518
 </TASK>

Showing all locks held in the system:
2 locks held by kworker/0:0/8:
1 lock held by khungtaskd/30:
 #0: 
ffffffff8e937a60
 (
rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6695
3 locks held by kworker/0:2/940:
5 locks held by kworker/u9:1/4619:
 #0: 
ffff88802ff78948
 (
(wq_completion)hci17
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc9000d427d00
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: 
ffff88803fc54d80
 (&hdev->req_lock
){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327
 #3: 
ffff88803fc54078
 (
&hdev->lock){+.+.}-{3:3}
, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5512
 #4: ffffffff8fded8e8
 (
hci_cb_list_lock
){+.+.}-{3:3}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline]
, at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265
1 lock held by dhcpcd/4896:
 #0: 
ffffffff8fc81d48
 (rtnl_mutex
){+.+.}-{3:3}
, at: rtnl_lock net/core/rtnetlink.c:149 [inline]
, at: rtnetlink_rcv_msg+0x6eb/0xd00 net/core/rtnetlink.c:6731
2 locks held by getty/4990:
 #0: ffff88802b11d0a0
 (
&tty->ldisc_sem){++++}-{0:0}
, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
 #1: 
ffffc90002efe2f0
 (
&ldata->atomic_read_lock
){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 drivers/tty/n_tty.c:2211
5 locks held by kworker/u9:2/5236:
 #0: 
ffff888023f95948
 (
(wq_completion)hci16){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3206 [inline]
(wq_completion)hci16){+.+.}-{0:0}, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc900035e7d00
 ((work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: 
ffff88803d860d80
 (
&hdev->req_lock){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327
 #3: 
ffff88803d860078
 (&hdev->lock
){+.+.}-{3:3}
, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5512
 #4: 
ffffffff8fded8e8
 (hci_cb_list_lock
){+.+.}-{3:3}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline]
, at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265
2 locks held by kworker/0:3/5237:
5 locks held by kworker/u9:3/5241:
 #0: 
ffff8880333b8948
 ((wq_completion)hci14
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc90003637d00
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: ffff88806aa4cd80
 (
&hdev->req_lock){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327
 #3: ffff88806aa4c078
 (
&hdev->lock){+.+.}-{3:3}
, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5512
 #4: ffffffff8fded8e8
 (
hci_cb_list_lock
){+.+.}-{3:3}
, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1962 [inline]
, at: hci_conn_failed+0x185/0x340 net/bluetooth/hci_conn.c:1265
5 locks held by kworker/u9:7/5250:
 #0: 
ffff8880333ba148
 ((wq_completion)hci15
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: ffffc900036e7d00
 (
(work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: ffff888055ffcd80
 (
&hdev->req_lock){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x1ec/0x400 net/bluetooth/hci_sync.c:327
 #3: ffff888055ffc078
 (&hdev->lock){+.+.}-{3:3}
, at: hci_abort_conn_sync+0x1ea/0xde0 net/bluetooth/hci_sync.c:5512
 #4: ffffffff8e93ce38
 (
rcu_state.exp_mutex){+.+.}-{3:3}
, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:967
3 locks held by kworker/1:3/5274:
 #0: 
ffff888015881948
 (
(wq_completion)events_power_efficient
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc900039e7d00
 ((reg_check_chans).work
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: 
ffffffff8fc81d48
 (rtnl_mutex
){+.+.}-{3:3}
, at: reg_check_chans_work+0x99/0xfd0 net/wireless/reg.c:2480
3 locks held by kworker/0:7/7003:
 #0: 
ffff888015880948
 ((wq_completion)events
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc9000459fd00
 (
deferred_process_work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: 
ffffffff8fc81d48
 (
rtnl_mutex){+.+.}-{3:3}
, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
3 locks held by kworker/u8:26/8567:
 #0: 
ffff888029f3f148
 (
(wq_completion)ipv6_addrconf){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc9000963fd00
 ((work_completion)(&(&ifa->dad_work)->work)
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: ffffffff8fc81d48
 (
rtnl_mutex){+.+.}-{3:3}
, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4194
4 locks held by kworker/u8:28/8569:
 #0: 
ffff8880166e5948
 ((wq_completion)netns
){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3206 [inline]
, at: process_scheduled_works+0x90a/0x1830 kernel/workqueue.c:3312
 #1: 
ffffc90009677d00
 (
net_cleanup_work){+.+.}-{0:0}
, at: process_one_work kernel/workqueue.c:3207 [inline]
, at: process_scheduled_works+0x945/0x1830 kernel/workqueue.c:3312
 #2: 
ffffffff8fc751d0
 (
pernet_ops_rwsem
){++++}-{3:3}
, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:594
 #3: 
ffffffff8fc81d48
 (
rtnl_mutex
){+.+.}-{3:3}
, at: ieee80211_unregister_hw+0x55/0x2c0 net/mac80211/main.c:1662
2 locks held by syz-executor/9035:
 #0: 
ffff88801195c0e0
 (&type->s_umount_key
#32
){++++}-{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: 
ffffffff8e9f2688
 (lock
#3
){+.+.}-{3:3}
, at: __lru_add_drain_all+0x66/0x560 mm/swap.c:875
3 locks held by syz-executor/9082:
 #0: 
ffff88806eb520e0
 (
&type->s_umount_key#62
){+.+.}-{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: 
ffffffff8eeada68