INFO: task kworker/u8:0:11 blocked for more than 143 seconds.
      Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:0    state:I stack:23312 pid:11    tgid:11    ppid:2      flags:0x00004000
Workqueue:  0x0 (events_unbound)
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5188 [inline]
 __schedule+0xe37/0x5490 kernel/sched/core.c:6529
 __schedule_loop kernel/sched/core.c:6606 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6621
 worker_thread+0x2de/0xf00 kernel/workqueue.c:3408
 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:
3 locks held by kworker/1:0/25:
 #0: ffff88801ac81948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: ffffc900001f7d80 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
 #2: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x84/0x1130 net/wireless/reg.c:2480
3 locks held by kworker/u8:2/29:
1 lock held by khungtaskd/31:
 #0: ffffffff8ddba6a0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:326 [inline]
 #0: ffffffff8ddba6a0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:838 [inline]
 #0: ffffffff8ddba6a0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6626
3 locks held by kworker/1:1/46:
 #0: ffff88801ac80948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: ffffc90000b67d80 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
 #2: ffffffff8ddc5e38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:328
3 locks held by kworker/u8:14/2583:
2 locks held by getty/4985:
 #0: ffff88803019b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
 #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfba/0x1480 drivers/tty/n_tty.c:2211
3 locks held by syz-executor/6899:
 #0: ffffffff8fb686f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1218
 #1: ffffffff8fb687a8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:35 [inline]
 #1: ffffffff8fb687a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:60 [inline]
 #1: ffffffff8fb687a8 (genl_mutex){+.+.}-{3:3}, at: genl_op_lock net/netlink/genetlink.c:57 [inline]
 #1: ffffffff8fb687a8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x580/0x800 net/netlink/genetlink.c:1209
 #2: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: ieee80211_register_hw+0x2cc7/0x41b0 net/mac80211/main.c:1584
2 locks held by syz-executor/6953:
1 lock held by syz.2.103/7049:
 #0: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
 #0: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x38/0x230 drivers/net/tun.c:3517
3 locks held by syz.1.104/7061:
 #0: ffff8880798fcd80 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x26/0x90 net/bluetooth/hci_core.c:481
 #1: ffff8880798fc078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x346/0x1110 net/bluetooth/hci_sync.c:5183
 #2: ffffffff8ddc5e38 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock+0x1a4/0x3b0 kernel/rcu/tree_exp.h:328
3 locks held by kworker/u8:11/7084:
 #0: ffff88801ac89148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x1277/0x1b40 kernel/workqueue.c:3206
 #1: ffffc900038e7d80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x921/0x1b40 kernel/workqueue.c:3207
 #2: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:276
4 locks held by syz-executor/7085:
1 lock held by syz-executor/7090:
 #0: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643
1 lock held by syz-executor/7095:
 #0: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
 #0: ffffffff8fac9f28 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xea0 net/core/rtnetlink.c:6643
1 lock held by dhcpcd-run-hook/7100:

=============================================

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:93 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:119
 nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x29c/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
 watchdog+0xf0c/0x1240 kernel/hung_task.c:379
 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>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 6540 Comm: kworker/u9:0 Not tainted 6.11.0-syzkaller-02574-ga430d95c5efa #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024
Workqueue: hci3 hci_rx_work
RIP: 0010:format_decode+0xe0/0xba0 lib/vsprintf.c:2547
Code: 9e c2 84 c0 0f 95 c0 84 c2 0f 85 42 0a 00 00 41 0f b6 2c 24 bf 01 00 00 00 89 ee e8 7a 8b 82 f6 40 80 fd 01 0f 84 34 02 00 00 <e8> 8b 89 82 f6 89 ee bf 02 00 00 00 e8 5f 8b 82 f6 40 80 fd 02 0f
RSP: 0018:ffffc90003b07150 EFLAGS: 00000297
RAX: 0000000000000002 RBX: ffffffff8b4dafc1 RCX: ffffffff8b094f46
RDX: ffff888028759e00 RSI: 0000000000000001 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000000 R11: 000000000001f760 R12: ffffc90003b07250
R13: 0000000000000025 R14: ffffc90003b072e8 R15: 000000007fffffff
FS:  0000000000000000(0000) GS:ffff8880b8900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f456103133b CR3: 000000007d586000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 vsnprintf+0x13d/0x1880 lib/vsprintf.c:2776
 sprintf+0xcd/0x110 lib/vsprintf.c:3028
 print_time kernel/printk/printk.c:1330 [inline]
 info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1356
 record_print_text+0x141/0x400 kernel/printk/printk.c:1405
 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2911
 console_emit_next_record kernel/printk/printk.c:2951 [inline]
 console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:3050
 console_unlock+0xae/0x290 kernel/printk/printk.c:3119
 vprintk_emit+0x409/0x600 kernel/printk/printk.c:2348
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2373
 bt_warn+0xe5/0x120 net/bluetooth/lib.c:276
 hci_cc_func net/bluetooth/hci_event.c:4179 [inline]
 hci_cmd_complete_evt+0x2f0/0x920 net/bluetooth/hci_event.c:4203
 hci_event_func net/bluetooth/hci_event.c:7443 [inline]
 hci_event_packet+0x666/0x1180 net/bluetooth/hci_event.c:7498
 hci_rx_work+0x2c6/0x1610 net/bluetooth/hci_core.c:4023
 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231
 process_scheduled_works kernel/workqueue.c:3312 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3393
 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>