Bluetooth: hci1: unexpected cc 0x1001 length: 249 > 9
Bluetooth: hci1: unexpected cc 0x0c23 length: 249 > 4
Bluetooth: hci1: unexpected cc 0x0c25 length: 249 > 3
Bluetooth: hci1: unexpected cc 0x0c38 length: 249 > 2
BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 PID: 4334 Comm: kworker/u5:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/06/2026
Workqueue: hci1 hci_rx_work
Call trace:
 dump_backtrace+0x1c4/0x1f0 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:3844 [inline]
 validate_chain kernel/locking/lockdep.c:3865 [inline]
 __lock_acquire+0x2618/0x7280 kernel/locking/lockdep.c:5171
 lock_acquire+0x210/0x63c kernel/locking/lockdep.c:5790
 local_lock_acquire+0x38/0x94 include/linux/local_lock_internal.h:29
 put_cpu_partial+0x68/0x1f8 mm/slub.c:2646
 get_partial_node+0x144/0x3ec mm/slub.c:2246
 get_partial mm/slub.c:2337 [inline]
 ___slab_alloc+0x67c/0xe90 mm/slub.c:3138
 __slab_alloc+0x74/0xd0 mm/slub.c:3247
 slab_alloc_node mm/slub.c:3332 [inline]
 __kmem_cache_alloc_node+0x298/0x318 mm/slub.c:3405
 kmalloc_trace+0x48/0x94 mm/slab_common.c:1026
 kmalloc include/linux/slab.h:563 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 l2cap_conn_add+0xb4/0x764 net/bluetooth/l2cap_core.c:7215
 l2cap_connect_cfm+0x124/0xedc net/bluetooth/l2cap_core.c:7598
 hci_connect_cfm+0x98/0x130 include/net/bluetooth/hci_core.h:1822
 le_conn_complete_evt+0xe90/0x14a8 net/bluetooth/hci_event.c:5798
 hci_le_conn_complete_evt+0x114/0x3b8 net/bluetooth/hci_event.c:5824
 hci_le_meta_evt+0x2c0/0x4a8 net/bluetooth/hci_event.c:7037
 hci_event_func net/bluetooth/hci_event.c:7301 [inline]
 hci_event_packet+0x4b0/0xb30 net/bluetooth/hci_event.c:7353
 hci_rx_work+0x310/0xa70 net/bluetooth/hci_core.c:4041
 process_one_work+0x7e4/0x13bc kernel/workqueue.c:2292
 worker_thread+0x8cc/0xfe8 kernel/workqueue.c:2439
 kthread+0x254/0x2e0 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:854