INFO: task syz.7.3475:21260 blocked for more than 144 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.3475      state:D stack:26624 pid:21260 tgid:21259 ppid:20790  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17db/0x58f0
 schedule+0x164/0x2b0
 schedule_timeout+0xc0/0x2c0
 __down_common+0x3b7/0x850
 down+0x80/0xd0
 console_lock+0x58/0x90
 con_flush_chars+0x74/0x90
 n_tty_receive_buf_common+0xd2a/0x13d0
 tiocsti+0x218/0x2a0
 tty_ioctl+0x626/0xdd0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd44939e1d9
RSP: 002b:00007fd44a24e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd449625fa0 RCX: 00007fd44939e1d9
RDX: 0000200000000280 RSI: 0000000000005412 RDI: 0000000000000004
RBP: 00007fd449435888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd449626038 R14: 00007fd449625fa0 R15: 00007ffe69c4dec8
 </TASK>
INFO: task syz.7.3475:21263 blocked for more than 144 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.7.3475      state:D stack:28808 pid:21263 tgid:21259 ppid:20790  task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x17db/0x58f0
 schedule+0x164/0x2b0
 schedule_timeout+0xc0/0x2c0
 __down_common+0x3b7/0x850
 down+0x80/0xd0
 console_lock+0x58/0x90
 do_con_write+0x12e/0x5500
 con_write+0x27/0x290
 tty_send_xchar+0x218/0x480
 tty_ioctl+0x9bd/0xdd0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x166/0x520
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd44939e1d9
RSP: 002b:00007fd44a22d028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fd449626090 RCX: 00007fd44939e1d9
RDX: 0000000000000002 RSI: 000000000000540a RDI: 0000000000000004
RBP: 00007fd449435888 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd449626128 R14: 00007fd449626090 R15: 00007ffe69c4dec8
 </TASK>

Showing all locks held in the system:
locks held by khungtaskd/34: 1, last CPU#0:
 #0: ffffffff8fd5c6e0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
locks held by kworker/u9:4/103: 3, last CPU#0:
 #0: ffff888022831940 ((wq_completion)wg-kex-wg2#49){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90002787c40 ((work_completion)(&peer->transmit_handshake_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff888117769440 (&wg->static_identity.lock){++++}-{4:4}, at: wg_noise_handshake_create_initiation+0x12e/0x810
locks held by kworker/u9:8/1108: 2, on CPU#0:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90006ba7c40 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
locks held by getty/5419: 2, on CPU#0:
 #0: ffff8881751490a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc900034932e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
locks held by kworker/0:6/5913: 2, last CPU#0:
 #0: ffff888100069d40 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90003d0fc40 ((work_completion)(&(&tbl->gc_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
locks held by kworker/u8:4/6978: 4, last CPU#0:
 #0: ffff888171e8c940 ((wq_completion)bat_events){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc90003e5fc40 ((work_completion)(&(&forw_packet_aggr->delayed_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff88810acb41c8 (&hard_iface->bat_iv.ogm_buff_mutex){+.+.}-{4:4}, at: batadv_iv_ogm_schedule+0xd4/0xfc0
 #3: ffffffff8fd5c6e0 (rcu_read_lock){....}-{1:3}, at: batadv_iv_ogm_schedule+0x41f/0xfc0
locks held by kworker/u9:12/7616: 3, last CPU#0:
 #0: ffff8881000ac140 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc9000344fc40 ((work_completion)(&rdev->wiphy_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff888023ad07a0 (&rdev->wiphy.mtx){+.+.}-{4:4}, at: cfg80211_wiphy_work+0xb4/0x420
locks held by kworker/u11:2/17178: 7, on CPU#0:
 #0: ffff8881be32d140 ((wq_completion)hci5){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #1: ffffc900038ffc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
 #2: ffff888050314ea0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1cb/0x3f0
 #3: ffff8880503140b8 (&hdev->lock){+.+.}-{4:4}, at: hci_abort_conn_sync+0xa6f/0x1190
 #4: ffffffff913d8b40 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_failed+0x17f/0x370
 #5: ffff888034378af8 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x9f/0x550
 #6: ffffffff8fd62aa8 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
locks held by syz.3.3396/20719: 6, last CPU#0:
 #0: ffffffff8fd4ea20 (console_lock){+.+.}-{0:0}, at: vt_ioctl+0x1d06/0x20e0
 #1: ffff88810a8f5a70 (&helper->lock){+.+.}-{4:4}, at: drm_fb_helper_pan_display+0xbe/0xbe0
 #2: ffff88810bb00128 (&dev->master_mutex){+.+.}-{4:4}, at: drm_master_internal_acquire+0x20/0x80
 #3: ffff88810a8f5890 (&client->modeset_mutex){+.+.}-{4:4}, at: drm_client_modeset_commit_locked+0x4c/0x4d0
 #4: ffffc90003eef370 (crtc_ww_class_acquire){+.+.}-{0:0}, at: drm_client_modeset_commit_atomic+0x11a/0x7e0
 #5: ffffc90003eef398 (crtc_ww_class_mutex){+.+.}-{4:4}, at: drm_client_modeset_commit_atomic+0x11a/0x7e0
locks held by syz.7.3475/21260: 3, on CPU#0:
 #0: ffff8881085bf0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffff88810068a0b8 (&buf->lock){+.+.}-{4:4}, at: tiocsti+0x1bd/0x2a0
 #2: ffff8881085bf2c8 (&tty->termios_rwsem){++++}-{4:4}, at: n_tty_receive_buf_common+0x84/0x13d0
locks held by syz.7.3475/21263: 3, on CPU#0:
 #0: ffff8881085bf0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffff8881085bf128 (&tty->atomic_write_lock){+.+.}-{4:4}, at: tty_send_xchar+0x169/0x480
