INFO: task kworker/u8:2:35 blocked for more than 145 seconds.
Not tainted 6.10.0-rc7-syzkaller-00254-g528dd46d0fc3 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:2 state:I
stack:22416 pid:35 tgid:35 ppid:2 flags:0x00004000
Workqueue: 0x0
(events_unbound)
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5408 [inline]
__schedule+0xf15/0x5d00 kernel/sched/core.c:6745
__schedule_loop kernel/sched/core.c:6822 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6837
worker_thread+0x2de/0xf30 kernel/workqueue.c:3424
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/30:
#0: ffffffff8dbb1620
(rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:329 [inline]
(rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:781 [inline]
(rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
2 locks held by kworker/u8:2/35:
2 locks held by kworker/1:1/45:
4 locks held by kworker/u9:0/53:
#0: ffff888069a97148 ((wq_completion)hci2#2){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc90000be7d80 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffff88806dac8078 (&hdev->lock){+.+.}-{3:3}, at: hci_remote_features_evt+0x99/0x9e0 net/bluetooth/hci_event.c:3687
#3:
ffffffff8f9ae028
(hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1967 [inline]
(hci_cb_list_lock){+.+.}-{3:3}, at: hci_remote_features_evt+0x4dc/0x9e0 net/bluetooth/hci_event.c:3721
3 locks held by kworker/0:2/929:
2 locks held by kworker/0:3/1155:
2 locks held by getty/4842:
#0: ffff88802ad9c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1:
ffffc900031232f0 (
&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2211
4 locks held by kworker/u9:2/5084:
#0:
ffff88807edd8148 ((wq_completion)hci11#2){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc9000315fd80 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2:
ffff88807b524078
(
&hdev->lock){+.+.}-{3:3}
, at: hci_remote_features_evt+0x99/0x9e0 net/bluetooth/hci_event.c:3687
#3: ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1967 [inline]
#3: ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_remote_features_evt+0x4dc/0x9e0 net/bluetooth/hci_event.c:3721
3 locks held by kworker/1:3/5132:
3 locks held by kworker/1:5/5135:
#0:
ffff888015480948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc9000349fd80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2:
ffffffff8f74bf68
(rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
3 locks held by kworker/0:5/5136:
5 locks held by kworker/u8:11/6558:
7 locks held by kworker/0:7/6685:
2 locks held by kworker/u8:14/6939:
4 locks held by kworker/u8:18/9943:
#0: ffff8880162d3148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc90003d3fd80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2: ffffffff8f736cd0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xbb/0xbf0 net/core/net_namespace.c:594
#3: ffff88802d90d408 (&wg->device_update_lock){+.+.}-{3:3}, at: wg_destruct+0x151/0x3d0 drivers/net/wireguard/device.c:249
5 locks held by kworker/u9:3/11666:
#0: ffff888060d7d148
((wq_completion)hci7){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1:
ffffc9000363fd80
((work_completion)(&hdev->cmd_sync_work)
){+.+.}-{0:0}
, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2:
ffff88805ef3cd88
(&hdev->req_lock
){+.+.}-{3:3}
, at: hci_cmd_sync_work+0x170/0x410 net/bluetooth/hci_sync.c:322
#3:
ffff88805ef3c078 (
&hdev->lock){+.+.}-{3:3}, at: hci_abort_conn_sync+0x150/0xb50 net/bluetooth/hci_sync.c:5444
#4:
ffffffff8dbbcdb8
(
rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:323
4 locks held by kworker/u9:4/11681:
#0: ffff8880608d1948
(
(wq_completion)hci10#2){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3223
#1: ffffc9000344fd80 ((work_completion)(&hdev->rx_work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3224
#2:
ffff888027254078 (&hdev->lock){+.+.}-{3:3}, at: hci_remote_features_evt+0x99/0x9e0 net/bluetooth/hci_event.c:3687
#3: ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_connect_cfm include/net/bluetooth/hci_core.h:1967 [inline]
#3: ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_remote_features_evt+0x4dc/0x9e0 net/bluetooth/hci_event.c:3721
3 locks held by syz-executor/13833:
#0: ffff8880630fcd88
(&hdev->req_lock
){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510
#1: ffff8880630fc078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063
#2: ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}
, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline]
, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593
1 lock held by syz.3.2431/13921:
#0:
ffffffff8f74bf68
(rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
(rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x250 drivers/net/tun.c:3500
3 locks held by syz-executor/13962:
#0: ffff88801fbe0d88 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510
#1: ffff88801fbe0078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063
#2:
ffffffff8f9ae028
(hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline]
(hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593
1 lock held by syz.1.2445/13971:
#0:
ffffffff8f74bf68 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
ffffffff8f74bf68 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3e/0x250 drivers/net/tun.c:3500
3 locks held by syz-executor/13974:
#0:
ffff888066168d88 (
&hdev->req_lock
){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510
#1:
ffff888066168078
(&hdev->lock
){+.+.}-{3:3}
, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063
#2:
ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline]
ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593
3 locks held by syz-executor/13977:
#0: ffff88806ccd4d88
(
&hdev->req_lock
){+.+.}-{3:3}
, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510
#1: ffff88806ccd4078
(
&hdev->lock){+.+.}-{3:3}
, at: hci_dev_close_sync+0x339/0x1100 net/bluetooth/hci_sync.c:5063
#2:
ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1982 [inline]
ffffffff8f9ae028 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xc4/0x260 net/bluetooth/hci_conn.c:2593
3 locks held by syz-executor/13986:
#0: ffff88801c708d88 (&hdev->req_lock){+.+.}-{3:3}
, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:510