BUG: MAX_LOCKDEP_CHAINS too low!
turning off the locking correctness validator.
CPU: 0 UID: 0 PID: 4893 Comm: kworker/0:6 Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
Workqueue: usb_hub_wq hub_event
Call trace:
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:499 (C)
 __dump_stack+0x30/0x40 lib/dump_stack.c:94
 dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120
 dump_stack+0x1c/0x28 lib/dump_stack.c:129
 add_chain_cache kernel/locking/lockdep.c:-1 [inline]
 lookup_chain_cache_add kernel/locking/lockdep.c:3855 [inline]
 validate_chain kernel/locking/lockdep.c:3876 [inline]
 __lock_acquire+0xf88/0x2f44 kernel/locking/lockdep.c:5237
 lock_acquire+0x140/0x368 kernel/locking/lockdep.c:5868
 fs_reclaim_acquire+0xb8/0x110 mm/page_alloc.c:4337
 might_alloc include/linux/sched/mm.h:317 [inline]
 slab_pre_alloc_hook mm/slub.c:4521 [inline]
 slab_alloc_node mm/slub.c:4876 [inline]
 kmem_cache_alloc_noprof+0x58/0x610 mm/slub.c:4906
 lsm_inode_alloc security/security.c:254 [inline]
 security_inode_alloc+0x3c/0x2fc security/security.c:1215
 inode_init_always_gfp+0x6ec/0xaf0 fs/inode.c:305
 inode_init_always include/linux/fs.h:2936 [inline]
 alloc_inode+0x9c/0x198 fs/inode.c:352
 new_inode+0x20/0x50 fs/inode.c:1179
 debugfs_get_inode+0x20/0x7c fs/debugfs/inode.c:72
 __debugfs_create_file+0xb8/0x358 fs/debugfs/inode.c:433
 debugfs_create_file_full+0x58/0x70 fs/debugfs/inode.c:460
 ref_tracker_dir_debugfs+0x170/0x2e4 lib/ref_tracker.c:440
 ref_tracker_dir_init include/linux/ref_tracker.h:70 [inline]
 alloc_netdev_mqs+0x1f0/0xe60 net/core/dev.c:12036
 alloc_etherdev_mqs+0x48/0x5c net/ethernet/eth.c:379
 usbnet_probe+0x194/0x2074 drivers/net/usb/usbnet.c:1762
 usb_probe_interface+0x2fc/0x788 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2a8/0x7e8 drivers/base/dd.c:709
 __driver_probe_device+0x1e0/0x33c drivers/base/dd.c:871
 driver_probe_device+0x6c/0x19c drivers/base/dd.c:901
 __device_attach_driver+0x194/0x2f4 drivers/base/dd.c:1029
 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500
 __device_attach+0x250/0x394 drivers/base/dd.c:1101
 device_initial_probe+0x90/0xcc drivers/base/dd.c:1156
 bus_probe_device+0x58/0x120 drivers/base/bus.c:613
 device_add+0x6c4/0x9e4 drivers/base/core.c:3706
 usb_set_configuration+0x1170/0x1588 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0x8c/0x144 drivers/usb/core/generic.c:250
 usb_probe_device+0x118/0x2b8 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x2a8/0x7e8 drivers/base/dd.c:709
 __driver_probe_device+0x1e0/0x33c drivers/base/dd.c:871
 driver_probe_device+0x6c/0x19c drivers/base/dd.c:901
 __device_attach_driver+0x194/0x2f4 drivers/base/dd.c:1029
 bus_for_each_drv+0x144/0x1dc drivers/base/bus.c:500
 __device_attach+0x250/0x394 drivers/base/dd.c:1101
 device_initial_probe+0x90/0xcc drivers/base/dd.c:1156
 bus_probe_device+0x58/0x120 drivers/base/bus.c:613
 device_add+0x6c4/0x9e4 drivers/base/core.c:3706
 usb_new_device+0x7a8/0x1214 drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x1f7c/0x3b20 drivers/usb/core/hub.c:5953
 process_one_work kernel/workqueue.c:3314 [inline]
 process_scheduled_works+0x79c/0x1098 kernel/workqueue.c:3397
 worker_thread+0x754/0xba0 kernel/workqueue.c:3478
 kthread+0x2f8/0x3c8 kernel/kthread.c:436
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842
cdc_ncm 1-1:1.0: bind() failure
cdc_ncm 1-1:1.1: CDC Union missing and no IAD found
cdc_ncm 1-1:1.1: bind() failure
usb 1-1: USB disconnect, device number 2