BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4328 Comm: kworker/u5:1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: hci2 hci_rx_work
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
 __debug_object_init+0x6c/0x42c lib/debugobjects.c:621
 debug_object_init+0x20/0x2c lib/debugobjects.c:659
 __init_work+0x58/0x68 kernel/workqueue.c:523
 l2cap_conn_add+0x4f8/0x968 net/bluetooth/l2cap_core.c:8050
 l2cap_connect_cfm+0x120/0xd98 net/bluetooth/l2cap_core.c:8403
 hci_connect_cfm include/net/bluetooth/hci_core.h:1817 [inline]
 hci_remote_features_evt+0x464/0x850 net/bluetooth/hci_event.c:3793
 hci_event_func net/bluetooth/hci_event.c:7429 [inline]
 hci_event_packet+0x700/0xf18 net/bluetooth/hci_event.c:7481
 hci_rx_work+0x328/0xa84 net/bluetooth/hci_core.c:4109
 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