BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4333 Comm: kworker/u5:3 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: hci0 hci_power_on
Call trace:
 dump_backtrace+0x1c0/0x1ec arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack+0x30/0x40 lib/dump_stack.c:88
 dump_stack_lvl+0xf4/0x15c lib/dump_stack.c:106
 dump_stack+0x1c/0x5c lib/dump_stack.c:113
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3772 [inline]
 validate_chain kernel/locking/lockdep.c:3793 [inline]
 __lock_acquire+0x1864/0x6800 kernel/locking/lockdep.c:5049
 lock_acquire+0x20c/0x63c kernel/locking/lockdep.c:5662
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
 _raw_spin_lock_irqsave+0x6c/0xb0 kernel/locking/spinlock.c:162
 prepare_to_wait_event+0x3c/0x3a0 kernel/sched/wait.c:310
 __hci_cmd_sync_sk+0x62c/0xcdc net/bluetooth/hci_sync.c:166
 __hci_cmd_sync_status_sk net/bluetooth/hci_sync.c:253 [inline]
 __hci_cmd_sync_status net/bluetooth/hci_sync.c:277 [inline]
 hci_read_local_features_sync net/bluetooth/hci_sync.c:3638 [inline]
 hci_init_stage_sync net/bluetooth/hci_sync.c:3549 [inline]
 hci_init1_sync net/bluetooth/hci_sync.c:3733 [inline]
 hci_init_sync net/bluetooth/hci_sync.c:4815 [inline]
 hci_dev_init_sync net/bluetooth/hci_sync.c:5006 [inline]
 hci_dev_open_sync+0xf00/0x3100 net/bluetooth/hci_sync.c:5086
 hci_dev_do_open net/bluetooth/hci_core.c:457 [inline]
 hci_power_on+0x14c/0x650 net/bluetooth/hci_core.c:963
 process_one_work+0x7f8/0x13a4 kernel/workqueue.c:2292
 worker_thread+0x8c4/0xfec kernel/workqueue.c:2439
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:850
Bluetooth: hci0: Opcode 0x1003 failed: -110