0523][   T52]  ? assign_work+0x3cf/0x5d0
[  365.170610][   T52]  worker_thread+0xa47/0xfb0
[  365.170781][   T52]  kthread+0x38b/0x480
[  365.170880][   T52]  ? __pfx_worker_thread+0x10/0x10
[  365.170944][   T52]  ? __pfx_kthread+0x10/0x10
[  365.171037][   T52]  ret_from_fork+0x514/0xb70
[  365.171132][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  365.171216][   T52]  ? __switch_to+0xc89/0x1420
[  365.171317][   T52]  ? __pfx_kthread+0x10/0x10
[  365.171415][   T52]  ret_from_fork_asm+0x1a/0x30
[  365.171544][   T52]  </TASK>
[  365.171721][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  365.171815][   T52] Bluetooth: hci2: failed to register connection device
[  365.365793][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  365.365870][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  365.365940][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  365.365981][   T52] Workqueue: hci2 hci_rx_work
[  365.366084][   T52] Call Trace:
[  365.366112][   T52]  <TASK>
[  365.366149][   T52]  dump_stack_lvl+0xe8/0x150
[  365.366255][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  365.366348][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  365.366433][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  365.366523][   T52]  kobject_add_internal+0x622/0xcd0
[  365.366619][   T52]  kobject_add+0x163/0x240
[  365.366708][   T52]  ? __pfx_kobject_add+0x10/0x10
[  365.366802][   T52]  ? get_device_parent+0x366/0x3a0
[  365.366896][   T52]  device_add+0x3fa/0xb80
[  365.366988][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  365.367083][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  365.367152][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  365.367220][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  365.367301][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  365.367374][   T52]  ? skb_pull_data+0xf0/0x200
[  365.367481][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  365.367578][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  365.367669][   T52]  hci_event_packet+0x67a/0xf10
[  365.367768][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  365.367823][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  365.367928][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  365.368008][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  365.368092][   T52]  hci_rx_work+0x3ee/0x1020
[  365.368190][   T52]  ? process_scheduled_works+0x97a/0x1630
[  365.368273][   T52]  process_scheduled_works+0xc3d/0x1630
[  365.368423][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  365.368515][   T52]  ? assign_work+0x3cf/0x5d0
[  365.368598][   T52]  worker_thread+0xa47/0xfb0
[  365.368738][   T52]  kthread+0x38b/0x480
[  365.368833][   T52]  ? __pfx_worker_thread+0x10/0x10
[  365.368911][   T52]  ? __pfx_kthread+0x10/0x10
[  365.368998][   T52]  ret_from_fork+0x514/0xb70
[  365.369093][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  365.369183][   T52]  ? __switch_to+0xc89/0x1420
[  365.369257][   T52]  ? __pfx_kthread+0x10/0x10
[  365.369372][   T52]  ret_from_fork_asm+0x1a/0x30
[  365.369494][   T52]  </TASK>
[  365.369626][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  365.369718][   T52] Bluetooth: hci2: failed to register connection device
[  365.423110][   T52] Bluetooth: hci2: command 0x2016 tx timeout
[  365.572924][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  365.573046][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  365.573117][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  365.573159][   T52] Workqueue: hci2 hci_rx_work
[  365.573274][   T52] Call Trace:
[  365.573297][   T52]  <TASK>
[  365.573327][   T52]  dump_stack_lvl+0xe8/0x150
[  365.573421][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  365.573508][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  365.573601][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  365.573692][   T52]  kobject_add_internal+0x622/0xcd0
[  365.573781][   T52]  kobject_add+0x163/0x240
[  365.573878][   T52]  ? __pfx_kobject_add+0x10/0x10
[  365.573999][   T52]  ? get_device_parent+0x366/0x3a0
[  365.574111][   T52]  device_add+0x3fa/0xb80
[  365.574198][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  365.574279][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  365.574356][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  365.574439][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  365.574521][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  365.574597][   T52]  ? skb_pull_data+0xf0/0x200
[  365.574693][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  365.574781][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  365.574868][   T52]  hci_event_packet+0x67a/0xf10
[  365.574978][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  365.575043][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  365.575150][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  365.575232][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  365.575363][   T52]  hci_rx_work+0x3ee/0x1020
[  365.575513][   T52]  ? process_scheduled_works+0x97a/0x1630
[  365.575591][   T52]  process_scheduled_works+0xc3d/0x1630
[  365.575753][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  365.575848][   T52]  ? assign_work+0x3cf/0x5d0
[  365.575928][   T52]  worker_thread+0xa47/0xfb0
[  365.576092][   T52]  kthread+0x38b/0x480
[  365.576179][   T52]  ? __pfx_worker_thread+0x10/0x10
[  365.576255][   T52]  ? __pfx_kthread+0x10/0x10
[  365.576352][   T52]  ret_from_fork+0x514/0xb70
[  365.576445][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  365.576541][   T52]  ? __switch_to+0xc89/0x1420
[  365.576622][   T52]  ? __pfx_kthread+0x10/0x10
[  365.576714][   T52]  ret_from_fork_asm+0x1a/0x30
[  365.576847][   T52]  </TASK>
[  365.576938][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  365.577027][   T52] Bluetooth: hci2: failed to register connection device
[  365.740216][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  365.740290][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  365.740363][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  365.740408][   T52] Workqueue: hci2 hci_rx_work
[  365.740497][   T52] Call Trace:
[  365.740533][   T52]  <TASK>
[  365.740567][   T52]  dump_stack_lvl+0xe8/0x150
[  365.740670][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  365.740752][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  365.740847][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  365.740940][   T52]  kobject_add_internal+0x622/0xcd0
[  365.741040][   T52]  kobject_add+0x163/0x240
[  365.741133][   T52]  ? __pfx_kobject_add+0x10/0x10
[  365.741221][   T52]  ? get_device_parent+0x366/0x3a0
[  365.741319][   T52]  device_add+0x3fa/0xb80
[  365.741413][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  365.741518][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  365.741600][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  365.741681][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  365.741749][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  365.741822][   T52]  ? skb_pull_data+0xf0/0x200
[  365.741989][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  365.742077][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  365.742158][   T52]  hci_event_packet+0x67a/0xf10
[  365.742275][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  365.742336][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  365.742439][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  365.742512][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  365.742596][   T52]  hci_rx_work+0x3ee/0x1020
[  365.742708][   T52]  ? process_scheduled_works+0x97a/0x1630
[  365.742784][   T52]  process_scheduled_works+0xc3d/0x1630
[  365.742931][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  365.743015][   T52]  ? assign_work+0x3cf/0x5d0
[  365.743096][   T52]  worker_thread+0xa47/0xfb0
[  365.743242][   T52]  kthread+0x38b/0x480
[  365.743373][   T52]  ? __pfx_worker_thread+0x10/0x10
[  365.743460][   T52]  ? __pfx_kthread+0x10/0x10
[  365.743544][   T52]  ret_from_fork+0x514/0xb70
[  365.743629][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  365.743711][   T52]  ? __switch_to+0xc89/0x1420
[  365.743797][   T52]  ? __pfx_kthread+0x10/0x10
[  365.743908][   T52]  ret_from_fork_asm+0x1a/0x30
[  365.744028][   T52]  </TASK>
[  365.746316][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  365.746439][   T52] Bluetooth: hci2: failed to register connection device
[  365.917392][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  365.917472][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  365.917553][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  365.917593][   T52] Workqueue: hci2 hci_rx_work
[  365.917706][   T52] Call Trace:
[  365.917730][   T52]  <TASK>
[  365.917777][   T52]  dump_stack_lvl+0xe8/0x150
[  365.917856][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  365.917950][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  365.918041][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  365.918123][   T52]  kobject_add_internal+0x622/0xcd0
[  365.918236][   T52]  kobject_add+0x163/0x240
[  365.918324][   T52]  ? __pfx_kobject_add+0x10/0x10
[  365.918420][   T52]  ? get_device_parent+0x366/0x3a0
[  365.918522][   T52]  device_add+0x3fa/0xb80
[  365.918607][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  365.918720][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  365.918813][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  365.918939][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  365.919022][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  365.919103][   T52]  ? skb_pull_data+0xf0/0x200
[  365.919186][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  365.919262][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  365.919348][   T52]  hci_event_packet+0x67a/0xf10
[  365.919453][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  365.919524][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  365.919633][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  365.919711][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  365.919805][   T52]  hci_rx_work+0x3ee/0x1020
[  365.919915][   T52]  ? process_scheduled_works+0x97a/0x1630
[  365.919990][   T52]  process_scheduled_works+0xc3d/0x1630
[  365.920156][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  365.920287][   T52]  ? assign_work+0x3cf/0x5d0
[  365.920371][   T52]  worker_thread+0xa47/0xfb0
[  365.920508][   T52]  kthread+0x38b/0x480
[  365.920607][   T52]  ? __pfx_worker_thread+0x10/0x10
[  365.920687][   T52]  ? __pfx_kthread+0x10/0x10
[  365.920776][   T52]  ret_from_fork+0x514/0xb70
[  365.920871][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  365.920955][   T52]  ? __switch_to+0xc89/0x1420
[  365.921033][   T52]  ? __pfx_kthread+0x10/0x10
[  365.921128][   T52]  ret_from_fork_asm+0x1a/0x30
[  365.921240][   T52]  </TASK>
[  365.922496][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  365.922597][   T52] Bluetooth: hci2: failed to register connection device
[  366.112345][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  366.112409][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  366.112473][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  366.112514][   T52] Workqueue: hci2 hci_rx_work
[  366.112628][   T52] Call Trace:
[  366.112652][   T52]  <TASK>
[  366.112681][   T52]  dump_stack_lvl+0xe8/0x150
[  366.112764][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  366.112855][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  366.112941][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  366.113032][   T52]  kobject_add_internal+0x622/0xcd0
[  366.113122][   T52]  kobject_add+0x163/0x240
[  366.113208][   T52]  ? __pfx_kobject_add+0x10/0x10
[  366.113293][   T52]  ? get_device_parent+0x366/0x3a0
[  366.113388][   T52]  device_add+0x3fa/0xb80
[  366.113472][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  366.113592][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  366.113683][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  366.113762][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  366.113841][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  366.113915][   T52]  ? skb_pull_data+0xf0/0x200
[  366.114002][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  366.114078][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  366.114165][   T52]  hci_event_packet+0x67a/0xf10
[  366.114272][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  366.114332][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  366.114439][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  366.114510][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  366.114593][   T52]  hci_rx_work+0x3ee/0x1020
[  366.114708][   T52]  ? process_scheduled_works+0x97a/0x1630
[  366.114800][   T52]  process_scheduled_works+0xc3d/0x1630
[  366.114953][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  366.115040][   T52]  ? assign_work+0x3cf/0x5d0
[  366.115120][   T52]  worker_thread+0xa47/0xfb0
[  366.115253][   T52]  kthread+0x38b/0x480
[  366.115288][   T52]  ? __pfx_worker_thread+0x10/0x10
[  366.115371][   T52]  ? __pfx_kthread+0x10/0x10
[  366.115483][   T52]  ret_from_fork+0x514/0xb70
[  366.115578][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  366.115664][   T52]  ? __switch_to+0xc89/0x1420
[  366.115749][   T52]  ? __pfx_kthread+0x10/0x10
[  366.115839][   T52]  ret_from_fork_asm+0x1a/0x30
[  366.115982][   T52]  </TASK>
[  366.116194][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  366.116285][   T52] Bluetooth: hci2: failed to register connection device
[  366.321319][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  366.321399][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  366.321464][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  366.321514][   T52] Workqueue: hci2 hci_rx_work
[  366.321624][   T52] Call Trace:
[  366.321646][   T52]  <TASK>
[  366.321675][   T52]  dump_stack_lvl+0xe8/0x150
[  366.321768][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  366.321846][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  366.321937][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  366.322028][   T52]  kobject_add_internal+0x622/0xcd0
[  366.322112][   T52]  kobject_add+0x163/0x240
[  366.322208][   T52]  ? __pfx_kobject_add+0x10/0x10
[  366.322303][   T52]  ? get_device_parent+0x366/0x3a0
[  366.322401][   T52]  device_add+0x3fa/0xb80
[  366.322505][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  366.322613][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  366.322698][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  366.322782][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  366.322881][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  366.322969][   T52]  ? skb_pull_data+0xf0/0x200
[  366.323055][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  366.323126][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  366.323215][   T52]  hci_event_packet+0x67a/0xf10
[  366.323323][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  366.323398][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  366.323494][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  366.323575][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  366.323677][   T52]  hci_rx_work+0x3ee/0x1020
[  366.323787][   T52]  ? process_scheduled_works+0x97a/0x1630
[  366.323846][   T52]  process_scheduled_works+0xc3d/0x1630
[  366.324001][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  366.324091][   T52]  ? assign_work+0x3cf/0x5d0
[  366.324175][   T52]  worker_thread+0xa47/0xfb0
[  366.324368][   T52]  kthread+0x38b/0x480
[  366.324478][   T52]  ? __pfx_worker_thread+0x10/0x10
[  366.324530][   T52]  ? __pfx_kthread+0x10/0x10
[  366.324623][   T52]  ret_from_fork+0x514/0xb70
[  366.324719][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  366.324803][   T52]  ? __switch_to+0xc89/0x1420
[  366.324887][   T52]  ? __pfx_kthread+0x10/0x10
[  366.324980][   T52]  ret_from_fork_asm+0x1a/0x30
[  366.325100][   T52]  </TASK>
[  366.327052][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  366.327093][   T52] Bluetooth: hci2: failed to register connection device
[  366.512217][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  366.512292][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  366.512327][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  366.512343][   T52] Workqueue: hci2 hci_rx_work
[  366.512449][   T52] Call Trace:
[  366.512479][   T52]  <TASK>
[  366.512504][   T52]  dump_stack_lvl+0xe8/0x150
[  366.512615][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  366.512709][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  366.512794][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  366.512886][   T52]  kobject_add_internal+0x622/0xcd0
[  366.513002][   T52]  kobject_add+0x163/0x240
[  366.513087][   T52]  ? __pfx_kobject_add+0x10/0x10
[  366.513169][   T52]  ? get_device_parent+0x366/0x3a0
[  366.513267][   T52]  device_add+0x3fa/0xb80
[  366.513365][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  366.513472][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  366.513562][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  366.513641][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  366.513732][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  366.513820][   T52]  ? skb_pull_data+0xf0/0x200
[  366.513945][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  366.514031][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  366.514118][   T52]  hci_event_packet+0x67a/0xf10
[  366.514238][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  366.514301][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  366.514407][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  366.514481][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  366.514590][   T52]  hci_rx_work+0x3ee/0x1020
[  366.514704][   T52]  ? process_scheduled_works+0x97a/0x1630
[  366.514782][   T52]  process_scheduled_works+0xc3d/0x1630
[  366.514946][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  366.515035][   T52]  ? assign_work+0x3cf/0x5d0
[  366.515119][   T52]  worker_thread+0xa47/0xfb0
[  366.515279][   T52]  kthread+0x38b/0x480
[  366.515390][   T52]  ? __pfx_worker_thread+0x10/0x10
[  366.515455][   T52]  ? __pfx_kthread+0x10/0x10
[  366.515553][   T52]  ret_from_fork+0x514/0xb70
[  366.515651][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  366.515732][   T52]  ? __switch_to+0xc89/0x1420
[  366.515817][   T52]  ? __pfx_kthread+0x10/0x10
[  366.515919][   T52]  ret_from_fork_asm+0x1a/0x30
[  366.516039][   T52]  </TASK>
[  366.516277][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  366.516359][   T52] Bluetooth: hci2: failed to register connection device
[  366.685331][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  366.685405][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  366.685471][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  366.685513][   T52] Workqueue: hci2 hci_rx_work
[  366.685650][   T52] Call Trace:
[  366.685679][   T52]  <TASK>
[  366.685709][   T52]  dump_stack_lvl+0xe8/0x150
[  366.685793][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  366.685910][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  366.686003][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  366.686083][   T52]  kobject_add_internal+0x622/0xcd0
[  366.686179][   T52]  kobject_add+0x163/0x240
[  366.686263][   T52]  ? __pfx_kobject_add+0x10/0x10
[  366.686356][   T52]  ? get_device_parent+0x366/0x3a0
[  366.686452][   T52]  device_add+0x3fa/0xb80
[  366.686548][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  366.686644][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  366.686730][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  366.686806][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  366.686883][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  366.686968][   T52]  ? skb_pull_data+0xf0/0x200
[  366.687087][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  366.687169][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  366.687247][   T52]  hci_event_packet+0x67a/0xf10
[  366.687360][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  366.687421][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  366.687527][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  366.687604][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  366.687682][   T52]  hci_rx_work+0x3ee/0x1020
[  366.687790][   T52]  ? process_scheduled_works+0x97a/0x1630
[  366.687883][   T52]  process_scheduled_works+0xc3d/0x1630
[  366.688031][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  366.688099][   T52]  ? assign_work+0x3cf/0x5d0
[  366.688186][   T52]  worker_thread+0xa47/0xfb0
[  366.688339][   T52]  kthread+0x38b/0x480
[  366.688451][   T52]  ? __pfx_worker_thread+0x10/0x10
[  366.688536][   T52]  ? __pfx_kthread+0x10/0x10
[  366.688635][   T52]  ret_from_fork+0x514/0xb70
[  366.688723][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  366.688810][   T52]  ? __switch_to+0xc89/0x1420
[  366.688890][   T52]  ? __pfx_kthread+0x10/0x10
[  366.688986][   T52]  ret_from_fork_asm+0x1a/0x30
[  366.689097][   T52]  </TASK>
[  366.689172][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  366.689268][   T52] Bluetooth: hci2: failed to register connection device
[  366.907092][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  366.907167][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  366.907234][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  366.907278][   T52] Workqueue: hci2 hci_rx_work
[  366.907379][   T52] Call Trace:
[  366.907406][   T52]  <TASK>
[  366.907437][   T52]  dump_stack_lvl+0xe8/0x150
[  366.907527][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  366.907634][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  366.907739][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  366.907852][   T52]  kobject_add_internal+0x622/0xcd0
[  366.907938][   T52]  kobject_add+0x163/0x240
[  366.908040][   T52]  ? __pfx_kobject_add+0x10/0x10
[  366.908139][   T52]  ? get_device_parent+0x366/0x3a0
[  366.908237][   T52]  device_add+0x3fa/0xb80
[  366.908332][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  366.908438][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  366.908517][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  366.908607][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  366.908697][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  366.908782][   T52]  ? skb_pull_data+0xf0/0x200
[  366.908880][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  366.908955][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  366.909051][   T52]  hci_event_packet+0x67a/0xf10
[  366.909208][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  366.909271][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  366.909380][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  366.909453][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  366.909537][   T52]  hci_rx_work+0x3ee/0x1020
[  366.909637][   T52]  ? process_scheduled_works+0x97a/0x1630
[  366.909709][   T52]  process_scheduled_works+0xc3d/0x1630
[  366.909887][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  366.909981][   T52]  ? assign_work+0x3cf/0x5d0
[  366.910073][   T52]  worker_thread+0xa47/0xfb0
[  366.910223][   T52]  kthread+0x38b/0x480
[  366.910318][   T52]  ? __pfx_worker_thread+0x10/0x10
[  366.910384][   T52]  ? __pfx_kthread+0x10/0x10
[  366.910487][   T52]  ret_from_fork+0x514/0xb70
[  366.910602][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  366.910690][   T52]  ? __switch_to+0xc89/0x1420
[  366.910776][   T52]  ? __pfx_kthread+0x10/0x10
[  366.910873][   T52]  ret_from_fork_asm+0x1a/0x30
[  366.911009][   T52]  </TASK>
[  366.911358][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  366.911454][   T52] Bluetooth: hci2: failed to register connection device
[  367.095225][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  367.095300][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  367.095366][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  367.095409][   T52] Workqueue: hci2 hci_rx_work
[  367.095515][   T52] Call Trace:
[  367.095546][   T52]  <TASK>
[  367.095570][   T52]  dump_stack_lvl+0xe8/0x150
[  367.095657][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  367.095754][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  367.095841][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  367.095958][   T52]  kobject_add_internal+0x622/0xcd0
[  367.096057][   T52]  kobject_add+0x163/0x240
[  367.096145][   T52]  ? __pfx_kobject_add+0x10/0x10
[  367.096235][   T52]  ? get_device_parent+0x366/0x3a0
[  367.096340][   T52]  device_add+0x3fa/0xb80
[  367.096441][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  367.096548][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  367.096643][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  367.096714][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  367.096791][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  367.096874][   T52]  ? skb_pull_data+0xf0/0x200
[  367.096965][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  367.097050][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  367.097124][   T52]  hci_event_packet+0x67a/0xf10
[  367.097240][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  367.097284][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  367.097399][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  367.097476][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  367.097572][   T52]  hci_rx_work+0x3ee/0x1020
[  367.097681][   T52]  ? process_scheduled_works+0x97a/0x1630
[  367.097763][   T52]  process_scheduled_works+0xc3d/0x1630
[  367.097916][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  367.097997][   T52]  ? assign_work+0x3cf/0x5d0
[  367.098088][   T52]  worker_thread+0xa47/0xfb0
[  367.098229][   T52]  kthread+0x38b/0x480
[  367.098323][   T52]  ? __pfx_worker_thread+0x10/0x10
[  367.098389][   T52]  ? __pfx_kthread+0x10/0x10
[  367.098486][   T52]  ret_from_fork+0x514/0xb70
[  367.098591][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  367.098677][   T52]  ? __switch_to+0xc89/0x1420
[  367.098774][   T52]  ? __pfx_kthread+0x10/0x10
[  367.098869][   T52]  ret_from_fork_asm+0x1a/0x30
[  367.099001][   T52]  </TASK>
[  367.099185][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  367.099281][   T52] Bluetooth: hci2: failed to register connection device
[  367.320021][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  367.320111][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  367.320185][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  367.320222][   T52] Workqueue: hci2 hci_rx_work
[  367.320333][   T52] Call Trace:
[  367.320363][   T52]  <TASK>
[  367.320387][   T52]  dump_stack_lvl+0xe8/0x150
[  367.320491][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  367.320588][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  367.320685][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  367.320776][   T52]  kobject_add_internal+0x622/0xcd0
[  367.320884][   T52]  kobject_add+0x163/0x240
[  367.320992][   T52]  ? __pfx_kobject_add+0x10/0x10
[  367.321081][   T52]  ? get_device_parent+0x366/0x3a0
[  367.321185][   T52]  device_add+0x3fa/0xb80
[  367.321281][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  367.321396][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  367.321497][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  367.321577][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  367.321663][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  367.321741][   T52]  ? skb_pull_data+0xf0/0x200
[  367.321852][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  367.321921][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  367.322008][   T52]  hci_event_packet+0x67a/0xf10
[  367.322125][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  367.322189][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  367.322299][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  367.322336][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  367.322370][   T52]  hci_rx_work+0x3ee/0x1020
[  367.322489][   T52]  ? process_scheduled_works+0x97a/0x1630
[  367.322566][   T52]  process_scheduled_works+0xc3d/0x1630
[  367.322726][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  367.322814][   T52]  ? assign_work+0x3cf/0x5d0
[  367.322900][   T52]  worker_thread+0xa47/0xfb0
[  367.323046][   T52]  kthread+0x38b/0x480
[  367.323137][   T52]  ? __pfx_worker_thread+0x10/0x10
[  367.323202][   T52]  ? __pfx_kthread+0x10/0x10
[  367.323296][   T52]  ret_from_fork+0x514/0xb70
[  367.323389][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  367.323476][   T52]  ? __switch_to+0xc89/0x1420
[  367.323559][   T52]  ? __pfx_kthread+0x10/0x10
[  367.323646][   T52]  ret_from_fork_asm+0x1a/0x30
[  367.323766][   T52]  </TASK>
[  367.324121][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  367.324228][   T52] Bluetooth: hci2: failed to register connection device
[  367.503679][   T52] Bluetooth: hci2: command 0x2016 tx timeout
[  367.522486][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  367.522558][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  367.522636][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  367.522678][   T52] Workqueue: hci2 hci_rx_work
[  367.522774][   T52] Call Trace:
[  367.522804][   T52]  <TASK>
[  367.522834][   T52]  dump_stack_lvl+0xe8/0x150
[  367.522907][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  367.523001][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  367.523081][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  367.523180][   T52]  kobject_add_internal+0x622/0xcd0
[  367.523309][   T52]  kobject_add+0x163/0x240
[  367.523391][   T52]  ? __pfx_kobject_add+0x10/0x10
[  367.523487][   T52]  ? get_device_parent+0x366/0x3a0
[  367.523591][   T52]  device_add+0x3fa/0xb80
[  367.523687][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  367.523785][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  367.523871][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  367.523953][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  367.524040][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  367.524116][   T52]  ? skb_pull_data+0xf0/0x200
[  367.524217][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  367.524296][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  367.524384][   T52]  hci_event_packet+0x67a/0xf10
[  367.524492][   T52]  ? irqentry_exit+0x218/0x910
[  367.524570][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  367.524622][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  367.524667][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  367.524746][   T52]  hci_rx_work+0x3ee/0x1020
[  367.524881][   T52]  ? process_scheduled_works+0x97a/0x1630
[  367.524950][   T52]  process_scheduled_works+0xc3d/0x1630
[  367.525099][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  367.525183][   T52]  ? assign_work+0x3cf/0x5d0
[  367.525274][   T52]  worker_thread+0xa47/0xfb0
[  367.525420][   T52]  kthread+0x38b/0x480
[  367.525527][   T52]  ? __pfx_worker_thread+0x10/0x10
[  367.525595][   T52]  ? __pfx_kthread+0x10/0x10
[  367.525694][   T52]  ret_from_fork+0x514/0xb70
[  367.525792][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  367.525880][   T52]  ? __switch_to+0xc89/0x1420
[  367.525953][   T52]  ? __pfx_kthread+0x10/0x10
[  367.526049][   T52]  ret_from_fork_asm+0x1a/0x30
[  367.526186][   T52]  </TASK>
[  367.526360][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  367.526469][   T52] Bluetooth: hci2: failed to register connection device
[  367.708332][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  367.708404][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  367.708469][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  367.708510][   T52] Workqueue: hci2 hci_rx_work
[  367.708618][   T52] Call Trace:
[  367.708642][   T52]  <TASK>
[  367.708672][   T52]  dump_stack_lvl+0xe8/0x150
[  367.708760][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  367.708864][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  367.708952][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  367.709032][   T52]  kobject_add_internal+0x622/0xcd0
[  367.709135][   T52]  kobject_add+0x163/0x240
[  367.709221][   T52]  ? __pfx_kobject_add+0x10/0x10
[  367.709318][   T52]  ? get_device_parent+0x366/0x3a0
[  367.709418][   T52]  device_add+0x3fa/0xb80
[  367.709545][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  367.709626][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  367.709761][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  367.709851][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  367.709926][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  367.710001][   T52]  ? skb_pull_data+0xf0/0x200
[  367.710109][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  367.710184][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  367.710268][   T52]  hci_event_packet+0x67a/0xf10
[  367.710376][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  367.710439][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  367.710553][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  367.710633][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  367.710720][   T52]  hci_rx_work+0x3ee/0x1020
[  367.710829][   T52]  ? process_scheduled_works+0x97a/0x1630
[  367.710925][   T52]  process_scheduled_works+0xc3d/0x1630
[  367.711131][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  367.711238][   T52]  ? assign_work+0x3cf/0x5d0
[  367.711322][   T52]  worker_thread+0xa47/0xfb0
[  367.711478][   T52]  kthread+0x38b/0x480
[  367.711570][   T52]  ? __pfx_worker_thread+0x10/0x10
[  367.711633][   T52]  ? __pfx_kthread+0x10/0x10
[  367.711726][   T52]  ret_from_fork+0x514/0xb70
[  367.711815][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  367.711901][   T52]  ? __switch_to+0xc89/0x1420
[  367.711981][   T52]  ? __pfx_kthread+0x10/0x10
[  367.712072][   T52]  ret_from_fork_asm+0x1a/0x30
[  367.712194][   T52]  </TASK>
[  367.713297][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  367.713400][   T52] Bluetooth: hci2: failed to register connection device
[  367.868481][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  367.868557][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  367.868638][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  367.868683][   T52] Workqueue: hci2 hci_rx_work
[  367.868790][   T52] Call Trace:
[  367.868813][   T52]  <TASK>
[  367.868848][   T52]  dump_stack_lvl+0xe8/0x150
[  367.868913][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  367.869016][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  367.869119][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  367.869210][   T52]  kobject_add_internal+0x622/0xcd0
[  367.869324][   T52]  kobject_add+0x163/0x240
[  367.869418][   T52]  ? __pfx_kobject_add+0x10/0x10
[  367.869504][   T52]  ? get_device_parent+0x366/0x3a0
[  367.869598][   T52]  device_add+0x3fa/0xb80
[  367.869725][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  367.869837][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  367.869932][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  367.870011][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  367.870091][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  367.870175][   T52]  ? skb_pull_data+0xf0/0x200
[  367.870294][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  367.870385][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  367.870495][   T52]  hci_event_packet+0x67a/0xf10
[  367.870603][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  367.870667][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  367.870775][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  367.870865][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  367.870955][   T52]  hci_rx_work+0x3ee/0x1020
[  367.871063][   T52]  ? process_scheduled_works+0x97a/0x1630
[  367.871138][   T52]  process_scheduled_works+0xc3d/0x1630
[  367.871285][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  367.871370][   T52]  ? assign_work+0x3cf/0x5d0
[  367.871476][   T52]  worker_thread+0xa47/0xfb0
[  367.871616][   T52]  kthread+0x38b/0x480
[  367.871711][   T52]  ? __pfx_worker_thread+0x10/0x10
[  367.871815][   T52]  ? __pfx_kthread+0x10/0x10
[  367.871905][   T52]  ret_from_fork+0x514/0xb70
[  367.872007][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  367.872091][   T52]  ? __switch_to+0xc89/0x1420
[  367.872167][   T52]  ? __pfx_kthread+0x10/0x10
[  367.872255][   T52]  ret_from_fork_asm+0x1a/0x30
[  367.872372][   T52]  </TASK>
[  367.872779][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  367.872879][   T52] Bluetooth: hci2: failed to register connection device
[  368.054857][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  368.054923][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  368.054998][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  368.055068][   T52] Workqueue: hci2 hci_rx_work
[  368.055194][   T52] Call Trace:
[  368.055219][   T52]  <TASK>
[  368.055254][   T52]  dump_stack_lvl+0xe8/0x150
[  368.055355][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  368.055462][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  368.055575][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  368.055679][   T52]  kobject_add_internal+0x622/0xcd0
[  368.055796][   T52]  kobject_add+0x163/0x240
[  368.055902][   T52]  ? __pfx_kobject_add+0x10/0x10
[  368.056011][   T52]  ? get_device_parent+0x366/0x3a0
[  368.056158][   T52]  device_add+0x3fa/0xb80
[  368.056278][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  368.056395][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  368.056502][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  368.056594][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  368.056687][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  368.056780][   T52]  ? skb_pull_data+0xf0/0x200
[  368.056885][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  368.056972][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  368.057068][   T52]  hci_event_packet+0x67a/0xf10
[  368.057197][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  368.057275][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  368.057393][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  368.057506][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  368.057601][   T52]  hci_rx_work+0x3ee/0x1020
[  368.057730][   T52]  ? process_scheduled_works+0x97a/0x1630
[  368.057825][   T52]  process_scheduled_works+0xc3d/0x1630
[  368.058054][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  368.058146][   T52]  ? assign_work+0x3cf/0x5d0
[  368.058250][   T52]  worker_thread+0xa47/0xfb0
[  368.058442][   T52]  kthread+0x38b/0x480
[  368.058548][   T52]  ? __pfx_worker_thread+0x10/0x10
[  368.058629][   T52]  ? __pfx_kthread+0x10/0x10
[  368.058734][   T52]  ret_from_fork+0x514/0xb70
[  368.058841][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  368.058947][   T52]  ? __switch_to+0xc89/0x1420
[  368.059040][   T52]  ? __pfx_kthread+0x10/0x10
[  368.059142][   T52]  ret_from_fork_asm+0x1a/0x30
[  368.059275][   T52]  </TASK>
[  368.059692][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  368.059808][   T52] Bluetooth: hci2: failed to register connection device
[  368.276757][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  368.276815][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  368.276880][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  368.276922][   T52] Workqueue: hci2 hci_rx_work
[  368.277041][   T52] Call Trace:
[  368.277063][   T52]  <TASK>
[  368.277103][   T52]  dump_stack_lvl+0xe8/0x150
[  368.277187][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  368.277280][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  368.277402][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  368.277518][   T52]  kobject_add_internal+0x622/0xcd0
[  368.277609][   T52]  kobject_add+0x163/0x240
[  368.277705][   T52]  ? __pfx_kobject_add+0x10/0x10
[  368.277800][   T52]  ? get_device_parent+0x366/0x3a0
[  368.277897][   T52]  device_add+0x3fa/0xb80
[  368.277996][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  368.278121][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  368.278208][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  368.278294][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  368.278395][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  368.278487][   T52]  ? skb_pull_data+0xf0/0x200
[  368.278585][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  368.278668][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  368.278754][   T52]  hci_event_packet+0x67a/0xf10
[  368.278868][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  368.278924][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  368.279033][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  368.279110][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  368.279215][   T52]  hci_rx_work+0x3ee/0x1020
[  368.279332][   T52]  ? process_scheduled_works+0x97a/0x1630
[  368.279416][   T52]  process_scheduled_works+0xc3d/0x1630
[  368.279587][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  368.279663][   T52]  ? assign_work+0x3cf/0x5d0
[  368.279765][   T52]  worker_thread+0xa47/0xfb0
[  368.279917][   T52]  kthread+0x38b/0x480
[  368.279980][   T52]  ? __pfx_worker_thread+0x10/0x10
[  368.280038][   T52]  ? __pfx_kthread+0x10/0x10
[  368.280134][   T52]  ret_from_fork+0x514/0xb70
[  368.280230][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  368.280318][   T52]  ? __switch_to+0xc89/0x1420
[  368.280403][   T52]  ? __pfx_kthread+0x10/0x10
[  368.280510][   T52]  ret_from_fork_asm+0x1a/0x30
[  368.280637][   T52]  </TASK>
[  368.280782][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  368.280885][   T52] Bluetooth: hci2: failed to register connection device
[  368.445946][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  368.446063][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  368.446144][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  368.446187][   T52] Workqueue: hci2 hci_rx_work
[  368.446291][   T52] Call Trace:
[  368.446313][   T52]  <TASK>
[  368.446343][   T52]  dump_stack_lvl+0xe8/0x150
[  368.446453][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  368.446545][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  368.446631][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  368.446725][   T52]  kobject_add_internal+0x622/0xcd0
[  368.446823][   T52]  kobject_add+0x163/0x240
[  368.446916][   T52]  ? __pfx_kobject_add+0x10/0x10
[  368.447006][   T52]  ? get_device_parent+0x366/0x3a0
[  368.447110][   T52]  device_add+0x3fa/0xb80
[  368.447198][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  368.447312][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  368.447410][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  368.447497][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  368.447570][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  368.447646][   T52]  ? skb_pull_data+0xf0/0x200
[  368.447747][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  368.447827][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  368.447924][   T52]  hci_event_packet+0x67a/0xf10
[  368.448050][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  368.448100][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  368.448206][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  368.448288][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  368.448377][   T52]  hci_rx_work+0x3ee/0x1020
[  368.448500][   T52]  ? process_scheduled_works+0x97a/0x1630
[  368.448571][   T52]  process_scheduled_works+0xc3d/0x1630
[  368.448736][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  368.448847][   T52]  ? assign_work+0x3cf/0x5d0
[  368.448937][   T52]  worker_thread+0xa47/0xfb0
[  368.449087][   T52]  kthread+0x38b/0x480
[  368.449172][   T52]  ? __pfx_worker_thread+0x10/0x10
[  368.449254][   T52]  ? __pfx_kthread+0x10/0x10
[  368.449341][   T52]  ret_from_fork+0x514/0xb70
[  368.449444][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  368.449528][   T52]  ? __switch_to+0xc89/0x1420
[  368.449625][   T52]  ? __pfx_kthread+0x10/0x10
[  368.449729][   T52]  ret_from_fork_asm+0x1a/0x30
[  368.449848][   T52]  </TASK>
[  368.449972][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  368.450068][   T52] Bluetooth: hci2: failed to register connection device
[  368.677181][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  368.677252][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  368.677321][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  368.677355][   T52] Workqueue: hci2 hci_rx_work
[  368.677481][   T52] Call Trace:
[  368.677509][   T52]  <TASK>
[  368.677546][   T52]  dump_stack_lvl+0xe8/0x150
[  368.677643][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  368.677735][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  368.677826][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  368.677912][   T52]  kobject_add_internal+0x622/0xcd0
[  368.678009][   T52]  kobject_add+0x163/0x240
[  368.678107][   T52]  ? __pfx_kobject_add+0x10/0x10
[  368.678198][   T52]  ? get_device_parent+0x366/0x3a0
[  368.678294][   T52]  device_add+0x3fa/0xb80
[  368.678389][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  368.678486][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  368.678571][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  368.678656][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  368.678734][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  368.678819][   T52]  ? skb_pull_data+0xf0/0x200
[  368.678933][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  368.679016][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  368.679102][   T52]  hci_event_packet+0x67a/0xf10
[  368.679227][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  368.679306][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  368.679431][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  368.679505][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  368.679592][   T52]  hci_rx_work+0x3ee/0x1020
[  368.679707][   T52]  ? process_scheduled_works+0x97a/0x1630
[  368.679782][   T52]  process_scheduled_works+0xc3d/0x1630
[  368.679921][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  368.680017][   T52]  ? assign_work+0x3cf/0x5d0
[  368.680102][   T52]  worker_thread+0xa47/0xfb0
[  368.680244][   T52]  kthread+0x38b/0x480
[  368.680353][   T52]  ? __pfx_worker_thread+0x10/0x10
[  368.680435][   T52]  ? __pfx_kthread+0x10/0x10
[  368.680524][   T52]  ret_from_fork+0x514/0xb70
[  368.680622][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  368.680703][   T52]  ? __switch_to+0xc89/0x1420
[  368.680790][   T52]  ? __pfx_kthread+0x10/0x10
[  368.680882][   T52]  ret_from_fork_asm+0x1a/0x30
[  368.681010][   T52]  </TASK>
[  368.681141][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  368.681236][   T52] Bluetooth: hci2: failed to register connection device
[  368.843867][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  368.843946][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  368.844010][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  368.844051][   T52] Workqueue: hci2 hci_rx_work
[  368.844144][   T52] Call Trace:
[  368.844153][   T52]  <TASK>
[  368.844164][   T52]  dump_stack_lvl+0xe8/0x150
[  368.844228][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  368.844324][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  368.844430][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  368.844521][   T52]  kobject_add_internal+0x622/0xcd0
[  368.844616][   T52]  kobject_add+0x163/0x240
[  368.844702][   T52]  ? __pfx_kobject_add+0x10/0x10
[  368.844786][   T52]  ? get_device_parent+0x366/0x3a0
[  368.844874][   T52]  device_add+0x3fa/0xb80
[  368.844960][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  368.845058][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  368.845139][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  368.845213][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  368.845286][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  368.845404][   T52]  ? skb_pull_data+0xf0/0x200
[  368.845497][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  368.845584][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  368.845669][   T52]  hci_event_packet+0x67a/0xf10
[  368.845797][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  368.845864][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  368.845969][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  368.846043][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  368.846126][   T52]  hci_rx_work+0x3ee/0x1020
[  368.846240][   T52]  ? process_scheduled_works+0x97a/0x1630
[  368.846313][   T52]  process_scheduled_works+0xc3d/0x1630
[  368.846473][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  368.846577][   T52]  ? assign_work+0x3cf/0x5d0
[  368.846664][   T52]  worker_thread+0xa47/0xfb0
[  368.846810][   T52]  kthread+0x38b/0x480
[  368.846890][   T52]  ? __pfx_worker_thread+0x10/0x10
[  368.846957][   T52]  ? __pfx_kthread+0x10/0x10
[  368.847058][   T52]  ret_from_fork+0x514/0xb70
[  368.847207][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  368.847298][   T52]  ? __switch_to+0xc89/0x1420
[  368.847392][   T52]  ? __pfx_kthread+0x10/0x10
[  368.847480][   T52]  ret_from_fork_asm+0x1a/0x30
[  368.847614][   T52]  </TASK>
[  368.847680][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  368.847774][   T52] Bluetooth: hci2: failed to register connection device
[  369.023127][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  369.023272][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  369.023368][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  369.023413][   T52] Workqueue: hci2 hci_rx_work
[  369.023513][   T52] Call Trace:
[  369.023543][   T52]  <TASK>
[  369.023567][   T52]  dump_stack_lvl+0xe8/0x150
[  369.023655][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  369.023750][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  369.023832][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  369.023919][   T52]  kobject_add_internal+0x622/0xcd0
[  369.023982][   T52]  kobject_add+0x163/0x240
[  369.024047][   T52]  ? __pfx_kobject_add+0x10/0x10
[  369.024161][   T52]  ? get_device_parent+0x366/0x3a0
[  369.024271][   T52]  device_add+0x3fa/0xb80
[  369.024370][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  369.024477][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  369.024565][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  369.024643][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  369.024728][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  369.024803][   T52]  ? skb_pull_data+0xf0/0x200
[  369.024889][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  369.024970][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  369.025056][   T52]  hci_event_packet+0x67a/0xf10
[  369.025161][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  369.025227][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  369.025333][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  369.025409][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  369.025520][   T52]  hci_rx_work+0x3ee/0x1020
[  369.025650][   T52]  ? process_scheduled_works+0x97a/0x1630
[  369.025718][   T52]  process_scheduled_works+0xc3d/0x1630
[  369.025872][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  369.025961][   T52]  ? assign_work+0x3cf/0x5d0
[  369.026049][   T52]  worker_thread+0xa47/0xfb0
[  369.026199][   T52]  kthread+0x38b/0x480
[  369.026291][   T52]  ? __pfx_worker_thread+0x10/0x10
[  369.026369][   T52]  ? __pfx_kthread+0x10/0x10
[  369.026463][   T52]  ret_from_fork+0x514/0xb70
[  369.026559][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  369.026644][   T52]  ? __switch_to+0xc89/0x1420
[  369.026729][   T52]  ? __pfx_kthread+0x10/0x10
[  369.026819][   T52]  ret_from_fork_asm+0x1a/0x30
[  369.026972][   T52]  </TASK>
[  369.027289][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  369.027397][   T52] Bluetooth: hci2: failed to register connection device
[  369.198298][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  369.198382][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  369.198455][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  369.198490][   T52] Workqueue: hci2 hci_rx_work
[  369.198593][   T52] Call Trace:
[  369.198615][   T52]  <TASK>
[  369.198645][   T52]  dump_stack_lvl+0xe8/0x150
[  369.198730][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  369.198818][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  369.198907][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  369.199002][   T52]  kobject_add_internal+0x622/0xcd0
[  369.199105][   T52]  kobject_add+0x163/0x240
[  369.199191][   T52]  ? __pfx_kobject_add+0x10/0x10
[  369.199285][   T52]  ? get_device_parent+0x366/0x3a0
[  369.199400][   T52]  device_add+0x3fa/0xb80
[  369.199500][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  369.199605][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  369.199691][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  369.199760][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  369.199848][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  369.199924][   T52]  ? skb_pull_data+0xf0/0x200
[  369.200023][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  369.200092][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  369.200177][   T52]  hci_event_packet+0x67a/0xf10
[  369.200283][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  369.200349][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  369.200454][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  369.200537][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  369.200626][   T52]  hci_rx_work+0x3ee/0x1020
[  369.200742][   T52]  ? process_scheduled_works+0x97a/0x1630
[  369.200844][   T52]  process_scheduled_works+0xc3d/0x1630
[  369.201014][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  369.201100][   T52]  ? assign_work+0x3cf/0x5d0
[  369.201183][   T52]  worker_thread+0xa47/0xfb0
[  369.201341][   T52]  kthread+0x38b/0x480
[  369.201427][   T52]  ? __pfx_worker_thread+0x10/0x10
[  369.201493][   T52]  ? __pfx_kthread+0x10/0x10
[  369.201579][   T52]  ret_from_fork+0x514/0xb70
[  369.201676][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  369.201761][   T52]  ? __switch_to+0xc89/0x1420
[  369.201824][   T52]  ? __pfx_kthread+0x10/0x10
[  369.201907][   T52]  ret_from_fork_asm+0x1a/0x30
[  369.202034][   T52]  </TASK>
[  369.202410][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  369.202508][   T52] Bluetooth: hci2: failed to register connection device
[  369.403007][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  369.403090][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  369.403156][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  369.403205][   T52] Workqueue: hci2 hci_rx_work
[  369.403304][   T52] Call Trace:
[  369.403326][   T52]  <TASK>
[  369.403356][   T52]  dump_stack_lvl+0xe8/0x150
[  369.403458][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  369.403543][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  369.403636][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  369.403730][   T52]  kobject_add_internal+0x622/0xcd0
[  369.403846][   T52]  kobject_add+0x163/0x240
[  369.403966][   T52]  ? __pfx_kobject_add+0x10/0x10
[  369.404062][   T52]  ? get_device_parent+0x366/0x3a0
[  369.404158][   T52]  device_add+0x3fa/0xb80
[  369.404253][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  369.404372][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  369.404481][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  369.404563][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  369.404638][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  369.404725][   T52]  ? skb_pull_data+0xf0/0x200
[  369.405019][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  369.405109][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  369.405195][   T52]  hci_event_packet+0x67a/0xf10
[  369.405320][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  369.405413][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  369.405530][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  369.405615][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  369.405720][   T52]  hci_rx_work+0x3ee/0x1020
[  369.405840][   T52]  ? process_scheduled_works+0x97a/0x1630
[  369.405910][   T52]  process_scheduled_works+0xc3d/0x1630
[  369.406066][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  369.406102][   T52]  ? assign_work+0x3cf/0x5d0
[  369.406133][   T52]  worker_thread+0xa47/0xfb0
[  369.406242][   T52]  kthread+0x38b/0x480
[  369.406354][   T52]  ? __pfx_worker_thread+0x10/0x10
[  369.406438][   T52]  ? __pfx_kthread+0x10/0x10
[  369.406535][   T52]  ret_from_fork+0x514/0xb70
[  369.406643][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  369.406729][   T52]  ? __switch_to+0xc89/0x1420
[  369.406816][   T52]  ? __pfx_kthread+0x10/0x10
[  369.406913][   T52]  ret_from_fork_asm+0x1a/0x30
[  369.407043][   T52]  </TASK>
[  369.410461][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  369.410589][   T52] Bluetooth: hci2: failed to register connection device
[  369.583360][   T52] Bluetooth: hci2: command 0x2016 tx timeout
[  369.592686][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  369.592756][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  369.592826][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  369.592860][   T52] Workqueue: hci2 hci_rx_work
[  369.592974][   T52] Call Trace:
[  369.593002][   T52]  <TASK>
[  369.593024][   T52]  dump_stack_lvl+0xe8/0x150
[  369.593114][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  369.593197][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  369.593280][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  369.593360][   T52]  kobject_add_internal+0x622/0xcd0
[  369.593478][   T52]  kobject_add+0x163/0x240
[  369.593563][   T52]  ? __pfx_kobject_add+0x10/0x10
[  369.593653][   T52]  ? get_device_parent+0x366/0x3a0
[  369.593747][   T52]  device_add+0x3fa/0xb80
[  369.593846][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  369.593949][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  369.594034][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  369.594133][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  369.594217][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  369.594289][   T52]  ? skb_pull_data+0xf0/0x200
[  369.594390][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  369.594471][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  369.594550][   T52]  hci_event_packet+0x67a/0xf10
[  369.594664][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  369.594726][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  369.594826][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  369.594903][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  369.594996][   T52]  hci_rx_work+0x3ee/0x1020
[  369.595104][   T52]  ? process_scheduled_works+0x97a/0x1630
[  369.595177][   T52]  process_scheduled_works+0xc3d/0x1630
[  369.595333][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  369.595448][   T52]  ? assign_work+0x3cf/0x5d0
[  369.595548][   T52]  worker_thread+0xa47/0xfb0
[  369.595681][   T52]  kthread+0x38b/0x480
[  369.595767][   T52]  ? __pfx_worker_thread+0x10/0x10
[  369.595833][   T52]  ? __pfx_kthread+0x10/0x10
[  369.595912][   T52]  ret_from_fork+0x514/0xb70
[  369.596004][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  369.596087][   T52]  ? __switch_to+0xc89/0x1420
[  369.596173][   T52]  ? __pfx_kthread+0x10/0x10
[  369.596265][   T52]  ret_from_fork_asm+0x1a/0x30
[  369.596389][   T52]  </TASK>
[  369.596652][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  369.596740][   T52] Bluetooth: hci2: failed to register connection device
[  369.771184][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  369.771255][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  369.771327][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  369.771376][   T52] Workqueue: hci2 hci_rx_work
[  369.771479][   T52] Call Trace:
[  369.771500][   T52]  <TASK>
[  369.771523][   T52]  dump_stack_lvl+0xe8/0x150
[  369.771606][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  369.771725][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  369.771836][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  369.771928][   T52]  kobject_add_internal+0x622/0xcd0
[  369.772029][   T52]  kobject_add+0x163/0x240
[  369.772113][   T52]  ? __pfx_kobject_add+0x10/0x10
[  369.772209][   T52]  ? get_device_parent+0x366/0x3a0
[  369.772305][   T52]  device_add+0x3fa/0xb80
[  369.772410][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  369.772512][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  369.772597][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  369.772672][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  369.772756][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  369.772831][   T52]  ? skb_pull_data+0xf0/0x200
[  369.772923][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  369.773005][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  369.773089][   T52]  hci_event_packet+0x67a/0xf10
[  369.773205][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  369.773229][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  369.773307][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  369.773411][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  369.773512][   T52]  hci_rx_work+0x3ee/0x1020
[  369.773627][   T52]  ? process_scheduled_works+0x97a/0x1630
[  369.773711][   T52]  process_scheduled_works+0xc3d/0x1630
[  369.773857][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  369.773934][   T52]  ? assign_work+0x3cf/0x5d0
[  369.774021][   T52]  worker_thread+0xa47/0xfb0
[  369.774156][   T52]  kthread+0x38b/0x480
[  369.774239][   T52]  ? __pfx_worker_thread+0x10/0x10
[  369.774309][   T52]  ? __pfx_kthread+0x10/0x10
[  369.774400][   T52]  ret_from_fork+0x514/0xb70
[  369.774493][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  369.774575][   T52]  ? __switch_to+0xc89/0x1420
[  369.774659][   T52]  ? __pfx_kthread+0x10/0x10
[  369.774758][   T52]  ret_from_fork_asm+0x1a/0x30
[  369.774867][   T52]  </TASK>
[  369.775203][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  369.775304][   T52] Bluetooth: hci2: failed to register connection device
[  369.953087][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  369.953158][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  369.953230][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  369.953265][   T52] Workqueue: hci2 hci_rx_work
[  369.953393][   T52] Call Trace:
[  369.953415][   T52]  <TASK>
[  369.953444][   T52]  dump_stack_lvl+0xe8/0x150
[  369.953528][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  369.953621][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  369.953715][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  369.953810][   T52]  kobject_add_internal+0x622/0xcd0
[  369.953906][   T52]  kobject_add+0x163/0x240
[  369.954000][   T52]  ? __pfx_kobject_add+0x10/0x10
[  369.954092][   T52]  ? get_device_parent+0x366/0x3a0
[  369.954186][   T52]  device_add+0x3fa/0xb80
[  369.954273][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  369.954374][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  369.954458][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  369.954541][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  369.954629][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  369.954720][   T52]  ? skb_pull_data+0xf0/0x200
[  369.954830][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  369.954905][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  369.954995][   T52]  hci_event_packet+0x67a/0xf10
[  369.955104][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  369.955169][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  369.955281][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  369.955363][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  369.955447][   T52]  hci_rx_work+0x3ee/0x1020
[  369.955562][   T52]  ? process_scheduled_works+0x97a/0x1630
[  369.955637][   T52]  process_scheduled_works+0xc3d/0x1630
[  369.955807][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  369.955902][   T52]  ? assign_work+0x3cf/0x5d0
[  369.956006][   T52]  worker_thread+0xa47/0xfb0
[  369.956175][   T52]  kthread+0x38b/0x480
[  369.956251][   T52]  ? __pfx_worker_thread+0x10/0x10
[  369.956321][   T52]  ? __pfx_kthread+0x10/0x10
[  369.956405][   T52]  ret_from_fork+0x514/0xb70
[  369.956496][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  369.956580][   T52]  ? __switch_to+0xc89/0x1420
[  369.956659][   T52]  ? __pfx_kthread+0x10/0x10
[  369.956760][   T52]  ret_from_fork_asm+0x1a/0x30
[  369.956877][   T52]  </TASK>
[  369.957016][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  369.957106][   T52] Bluetooth: hci2: failed to register connection device
[  370.108333][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  370.108406][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  370.108473][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  370.108516][   T52] Workqueue: hci2 hci_rx_work
[  370.108631][   T52] Call Trace:
[  370.108653][   T52]  <TASK>
[  370.108677][   T52]  dump_stack_lvl+0xe8/0x150
[  370.108775][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  370.108877][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  370.108962][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  370.109058][   T52]  kobject_add_internal+0x622/0xcd0
[  370.109156][   T52]  kobject_add+0x163/0x240
[  370.109271][   T52]  ? __pfx_kobject_add+0x10/0x10
[  370.109365][   T52]  ? get_device_parent+0x366/0x3a0
[  370.109492][   T52]  device_add+0x3fa/0xb80
[  370.109580][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  370.109671][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  370.109769][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  370.109846][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  370.109930][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  370.110010][   T52]  ? skb_pull_data+0xf0/0x200
[  370.110108][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  370.110184][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  370.110275][   T52]  hci_event_packet+0x67a/0xf10
[  370.110390][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  370.110454][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  370.110569][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  370.110666][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  370.110761][   T52]  hci_rx_work+0x3ee/0x1020
[  370.110870][   T52]  ? process_scheduled_works+0x97a/0x1630
[  370.110945][   T52]  process_scheduled_works+0xc3d/0x1630
[  370.111107][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  370.111196][   T52]  ? assign_work+0x3cf/0x5d0
[  370.111287][   T52]  worker_thread+0xa47/0xfb0
[  370.111434][   T52]  kthread+0x38b/0x480
[  370.111526][   T52]  ? __pfx_worker_thread+0x10/0x10
[  370.111592][   T52]  ? __pfx_kthread+0x10/0x10
[  370.111688][   T52]  ret_from_fork+0x514/0xb70
[  370.111782][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  370.111868][   T52]  ? __switch_to+0xc89/0x1420
[  370.111964][   T52]  ? __pfx_kthread+0x10/0x10
[  370.112079][   T52]  ret_from_fork_asm+0x1a/0x30
[  370.112196][   T52]  </TASK>
[  370.112802][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  370.112908][   T52] Bluetooth: hci2: failed to register connection device
[  370.288719][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  370.288793][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  370.288867][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  370.288909][   T52] Workqueue: hci2 hci_rx_work
[  370.289011][   T52] Call Trace:
[  370.289033][   T52]  <TASK>
[  370.289063][   T52]  dump_stack_lvl+0xe8/0x150
[  370.289150][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  370.289248][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  370.289336][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  370.289449][   T52]  kobject_add_internal+0x622/0xcd0
[  370.289548][   T52]  kobject_add+0x163/0x240
[  370.289642][   T52]  ? __pfx_kobject_add+0x10/0x10
[  370.289747][   T52]  ? get_device_parent+0x366/0x3a0
[  370.289845][   T52]  device_add+0x3fa/0xb80
[  370.289933][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  370.290054][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  370.290147][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  370.290229][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  370.290315][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  370.290391][   T52]  ? skb_pull_data+0xf0/0x200
[  370.290487][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  370.290564][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  370.290652][   T52]  hci_event_packet+0x67a/0xf10
[  370.290772][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  370.290846][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  370.290954][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  370.291041][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  370.291132][   T52]  hci_rx_work+0x3ee/0x1020
[  370.291229][   T52]  ? process_scheduled_works+0x97a/0x1630
[  370.291300][   T52]  process_scheduled_works+0xc3d/0x1630
[  370.291473][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  370.291565][   T52]  ? assign_work+0x3cf/0x5d0
[  370.291648][   T52]  worker_thread+0xa47/0xfb0
[  370.291819][   T52]  kthread+0x38b/0x480
[  370.291906][   T52]  ? __pfx_worker_thread+0x10/0x10
[  370.291955][   T52]  ? __pfx_kthread+0x10/0x10
[  370.292022][   T52]  ret_from_fork+0x514/0xb70
[  370.292128][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  370.292207][   T52]  ? __switch_to+0xc89/0x1420
[  370.292291][   T52]  ? __pfx_kthread+0x10/0x10
[  370.292378][   T52]  ret_from_fork_asm+0x1a/0x30
[  370.292512][   T52]  </TASK>
[  370.293887][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  370.293992][   T52] Bluetooth: hci2: failed to register connection device
[  370.485608][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  370.485677][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  370.485759][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  370.485801][   T52] Workqueue: hci2 hci_rx_work
[  370.485912][   T52] Call Trace:
[  370.485941][   T52]  <TASK>
[  370.485964][   T52]  dump_stack_lvl+0xe8/0x150
[  370.486036][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  370.486130][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  370.486220][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  370.486307][   T52]  kobject_add_internal+0x622/0xcd0
[  370.486412][   T52]  kobject_add+0x163/0x240
[  370.486500][   T52]  ? __pfx_kobject_add+0x10/0x10
[  370.486591][   T52]  ? get_device_parent+0x366/0x3a0
[  370.486689][   T52]  device_add+0x3fa/0xb80
[  370.486854][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  370.486967][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  370.487045][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  370.487136][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  370.487212][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  370.487283][   T52]  ? skb_pull_data+0xf0/0x200
[  370.487380][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  370.487461][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  370.487547][   T52]  hci_event_packet+0x67a/0xf10
[  370.487640][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  370.487705][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  370.487830][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  370.487907][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  370.488002][   T52]  hci_rx_work+0x3ee/0x1020
[  370.488118][   T52]  ? process_scheduled_works+0x97a/0x1630
[  370.488189][   T52]  process_scheduled_works+0xc3d/0x1630
[  370.488341][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  370.488432][   T52]  ? assign_work+0x3cf/0x5d0
[  370.488509][   T52]  worker_thread+0xa47/0xfb0
[  370.488685][   T52]  kthread+0x38b/0x480
[  370.488783][   T52]  ? __pfx_worker_thread+0x10/0x10
[  370.488856][   T52]  ? __pfx_kthread+0x10/0x10
[  370.488945][   T52]  ret_from_fork+0x514/0xb70
[  370.489042][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  370.489127][   T52]  ? __switch_to+0xc89/0x1420
[  370.489217][   T52]  ? __pfx_kthread+0x10/0x10
[  370.489304][   T52]  ret_from_fork_asm+0x1a/0x30
[  370.489456][   T52]  </TASK>
[  370.489612][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  370.489718][   T52] Bluetooth: hci2: failed to register connection device
[  370.674603][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  370.674675][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  370.674796][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  370.674825][   T52] Workqueue: hci2 hci_rx_work
[  370.674950][   T52] Call Trace:
[  370.674977][   T52]  <TASK>
[  370.675001][   T52]  dump_stack_lvl+0xe8/0x150
[  370.675097][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  370.675191][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  370.675274][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  370.675368][   T52]  kobject_add_internal+0x622/0xcd0
[  370.675460][   T52]  kobject_add+0x163/0x240
[  370.675547][   T52]  ? __pfx_kobject_add+0x10/0x10
[  370.675643][   T52]  ? get_device_parent+0x366/0x3a0
[  370.675749][   T52]  device_add+0x3fa/0xb80
[  370.675836][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  370.675927][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  370.676013][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  370.676105][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  370.676180][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  370.676266][   T52]  ? skb_pull_data+0xf0/0x200
[  370.676380][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  370.676458][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  370.676554][   T52]  hci_event_packet+0x67a/0xf10
[  370.676660][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  370.676734][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  370.676848][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  370.676931][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  370.677010][   T52]  hci_rx_work+0x3ee/0x1020
[  370.677132][   T52]  ? process_scheduled_works+0x97a/0x1630
[  370.677195][   T52]  process_scheduled_works+0xc3d/0x1630
[  370.677347][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  370.677439][   T52]  ? assign_work+0x3cf/0x5d0
[  370.677527][   T52]  worker_thread+0xa47/0xfb0
[  370.677711][   T52]  kthread+0x38b/0x480
[  370.677803][   T52]  ? __pfx_worker_thread+0x10/0x10
[  370.677875][   T52]  ? __pfx_kthread+0x10/0x10
[  370.677958][   T52]  ret_from_fork+0x514/0xb70
[  370.678042][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  370.678126][   T52]  ? __switch_to+0xc89/0x1420
[  370.678204][   T52]  ? __pfx_kthread+0x10/0x10
[  370.678290][   T52]  ret_from_fork_asm+0x1a/0x30
[  370.678416][   T52]  </TASK>
[  370.678762][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  370.678867][   T52] Bluetooth: hci2: failed to register connection device
[  370.806364][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  370.806437][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  370.806503][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  370.806545][   T52] Workqueue: hci2 hci_rx_work
[  370.806653][   T52] Call Trace:
[  370.806684][   T52]  <TASK>
[  370.806715][   T52]  dump_stack_lvl+0xe8/0x150
[  370.806810][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  370.806904][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  370.806992][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  370.807087][   T52]  kobject_add_internal+0x622/0xcd0
[  370.807169][   T52]  kobject_add+0x163/0x240
[  370.807202][   T52]  ? __pfx_kobject_add+0x10/0x10
[  370.807245][   T52]  ? get_device_parent+0x366/0x3a0
[  370.807329][   T52]  device_add+0x3fa/0xb80
[  370.807440][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  370.807547][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  370.807632][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  370.807719][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  370.807795][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  370.807881][   T52]  ? skb_pull_data+0xf0/0x200
[  370.807976][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  370.808048][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  370.808140][   T52]  hci_event_packet+0x67a/0xf10
[  370.808241][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  370.808306][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  370.808412][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  370.808489][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  370.808575][   T52]  hci_rx_work+0x3ee/0x1020
[  370.808693][   T52]  ? process_scheduled_works+0x97a/0x1630
[  370.808768][   T52]  process_scheduled_works+0xc3d/0x1630
[  370.808921][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  370.809026][   T52]  ? assign_work+0x3cf/0x5d0
[  370.809130][   T52]  worker_thread+0xa47/0xfb0
[  370.809266][   T52]  kthread+0x38b/0x480
[  370.809395][   T52]  ? __pfx_worker_thread+0x10/0x10
[  370.809470][   T52]  ? __pfx_kthread+0x10/0x10
[  370.809558][   T52]  ret_from_fork+0x514/0xb70
[  370.809653][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  370.809747][   T52]  ? __switch_to+0xc89/0x1420
[  370.809832][   T52]  ? __pfx_kthread+0x10/0x10
[  370.809922][   T52]  ret_from_fork_asm+0x1a/0x30
[  370.810058][   T52]  </TASK>
[  370.810184][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  370.810289][   T52] Bluetooth: hci2: failed to register connection device
[  371.036474][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  371.036550][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  371.036616][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  371.036670][   T52] Workqueue: hci2 hci_rx_work
[  371.036794][   T52] Call Trace:
[  371.036818][   T52]  <TASK>
[  371.036857][   T52]  dump_stack_lvl+0xe8/0x150
[  371.036954][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  371.037047][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  371.037134][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  371.037216][   T52]  kobject_add_internal+0x622/0xcd0
[  371.037312][   T52]  kobject_add+0x163/0x240
[  371.037399][   T52]  ? __pfx_kobject_add+0x10/0x10
[  371.037502][   T52]  ? get_device_parent+0x366/0x3a0
[  371.037598][   T52]  device_add+0x3fa/0xb80
[  371.037693][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  371.037796][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  371.037876][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  371.037958][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  371.038031][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  371.038085][   T52]  ? skb_pull_data+0xf0/0x200
[  371.038199][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  371.038290][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  371.038375][   T52]  hci_event_packet+0x67a/0xf10
[  371.038483][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  371.038554][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  371.038665][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  371.038751][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  371.038838][   T52]  hci_rx_work+0x3ee/0x1020
[  371.038952][   T52]  ? process_scheduled_works+0x97a/0x1630
[  371.039024][   T52]  process_scheduled_works+0xc3d/0x1630
[  371.039173][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  371.039268][   T52]  ? assign_work+0x3cf/0x5d0
[  371.039352][   T52]  worker_thread+0xa47/0xfb0
[  371.039500][   T52]  kthread+0x38b/0x480
[  371.039606][   T52]  ? __pfx_worker_thread+0x10/0x10
[  371.039679][   T52]  ? __pfx_kthread+0x10/0x10
[  371.039766][   T52]  ret_from_fork+0x514/0xb70
[  371.039867][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  371.039941][   T52]  ? __switch_to+0xc89/0x1420
[  371.040019][   T52]  ? __pfx_kthread+0x10/0x10
[  371.040113][   T52]  ret_from_fork_asm+0x1a/0x30
[  371.040243][   T52]  </TASK>
[  371.040518][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  371.040616][   T52] Bluetooth: hci2: failed to register connection device
[  371.236789][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  371.236861][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  371.236924][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  371.236965][   T52] Workqueue: hci2 hci_rx_work
[  371.237078][   T52] Call Trace:
[  371.237099][   T52]  <TASK>
[  371.237129][   T52]  dump_stack_lvl+0xe8/0x150
[  371.237239][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  371.237325][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  371.237419][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  371.237512][   T52]  kobject_add_internal+0x622/0xcd0
[  371.237610][   T52]  kobject_add+0x163/0x240
[  371.237709][   T52]  ? __pfx_kobject_add+0x10/0x10
[  371.237788][   T52]  ? get_device_parent+0x366/0x3a0
[  371.237893][   T52]  device_add+0x3fa/0xb80
[  371.237984][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  371.238102][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  371.238182][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  371.238259][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  371.238343][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  371.238420][   T52]  ? skb_pull_data+0xf0/0x200
[  371.238536][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  371.238645][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  371.238731][   T52]  hci_event_packet+0x67a/0xf10
[  371.238840][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  371.238904][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  371.239012][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  371.239098][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  371.239179][   T52]  hci_rx_work+0x3ee/0x1020
[  371.239288][   T52]  ? process_scheduled_works+0x97a/0x1630
[  371.239362][   T52]  process_scheduled_works+0xc3d/0x1630
[  371.239524][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  371.239620][   T52]  ? assign_work+0x3cf/0x5d0
[  371.239716][   T52]  worker_thread+0xa47/0xfb0
[  371.239875][   T52]  kthread+0x38b/0x480
[  371.239962][   T52]  ? __pfx_worker_thread+0x10/0x10
[  371.240034][   T52]  ? __pfx_kthread+0x10/0x10
[  371.240122][   T52]  ret_from_fork+0x514/0xb70
[  371.240208][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  371.240294][   T52]  ? __switch_to+0xc89/0x1420
[  371.240381][   T52]  ? __pfx_kthread+0x10/0x10
[  371.240484][   T52]  ret_from_fork_asm+0x1a/0x30
[  371.240609][   T52]  </TASK>
[  371.241119][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  371.241203][   T52] Bluetooth: hci2: failed to register connection device
[  371.400066][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  371.400135][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  371.400206][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  371.400247][   T52] Workqueue: hci2 hci_rx_work
[  371.400349][   T52] Call Trace:
[  371.400371][   T52]  <TASK>
[  371.400402][   T52]  dump_stack_lvl+0xe8/0x150
[  371.400494][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  371.400579][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  371.400676][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  371.400760][   T52]  kobject_add_internal+0x622/0xcd0
[  371.400855][   T52]  kobject_add+0x163/0x240
[  371.400947][   T52]  ? __pfx_kobject_add+0x10/0x10
[  371.401047][   T52]  ? get_device_parent+0x366/0x3a0
[  371.401142][   T52]  device_add+0x3fa/0xb80
[  371.401233][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  371.401322][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  371.401396][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  371.401472][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  371.401551][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  371.401639][   T52]  ? skb_pull_data+0xf0/0x200
[  371.401748][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  371.401832][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  371.401910][   T52]  hci_event_packet+0x67a/0xf10
[  371.402027][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  371.402097][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  371.402198][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  371.402271][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  371.402361][   T52]  hci_rx_work+0x3ee/0x1020
[  371.402476][   T52]  ? process_scheduled_works+0x97a/0x1630
[  371.402547][   T52]  process_scheduled_works+0xc3d/0x1630
[  371.402699][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  371.402732][   T52]  ? assign_work+0x3cf/0x5d0
[  371.402794][   T52]  worker_thread+0xa47/0xfb0
[  371.402970][   T52]  kthread+0x38b/0x480
[  371.403069][   T52]  ? __pfx_worker_thread+0x10/0x10
[  371.403127][   T52]  ? __pfx_kthread+0x10/0x10
[  371.403221][   T52]  ret_from_fork+0x514/0xb70
[  371.403315][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  371.403399][   T52]  ? __switch_to+0xc89/0x1420
[  371.403461][   T52]  ? __pfx_kthread+0x10/0x10
[  371.403551][   T52]  ret_from_fork_asm+0x1a/0x30
[  371.403685][   T52]  </TASK>
[  371.404094][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  371.404189][   T52] Bluetooth: hci2: failed to register connection device
[  371.617082][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  371.617149][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  371.617215][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  371.617256][   T52] Workqueue: hci2 hci_rx_work
[  371.617363][   T52] Call Trace:
[  371.617386][   T52]  <TASK>
[  371.617415][   T52]  dump_stack_lvl+0xe8/0x150
[  371.617505][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  371.617617][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  371.617738][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  371.617832][   T52]  kobject_add_internal+0x622/0xcd0
[  371.617929][   T52]  kobject_add+0x163/0x240
[  371.618023][   T52]  ? __pfx_kobject_add+0x10/0x10
[  371.618089][   T52]  ? get_device_parent+0x366/0x3a0
[  371.618180][   T52]  device_add+0x3fa/0xb80
[  371.618267][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  371.618375][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  371.618459][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  371.618536][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  371.618621][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  371.618676][   T52]  ? skb_pull_data+0xf0/0x200
[  371.618779][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  371.618860][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  371.618946][   T52]  hci_event_packet+0x67a/0xf10
[  371.619082][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  371.619140][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  371.619251][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  371.619327][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  371.619421][   T52]  hci_rx_work+0x3ee/0x1020
[  371.619539][   T52]  ? process_scheduled_works+0x97a/0x1630
[  371.619623][   T52]  process_scheduled_works+0xc3d/0x1630
[  371.619775][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  371.619879][   T52]  ? assign_work+0x3cf/0x5d0
[  371.619961][   T52]  worker_thread+0xa47/0xfb0
[  371.620108][   T52]  kthread+0x38b/0x480
[  371.620188][   T52]  ? __pfx_worker_thread+0x10/0x10
[  371.620257][   T52]  ? __pfx_kthread+0x10/0x10
[  371.620342][   T52]  ret_from_fork+0x514/0xb70
[  371.620431][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  371.620517][   T52]  ? __switch_to+0xc89/0x1420
[  371.620619][   T52]  ? __pfx_kthread+0x10/0x10
[  371.620715][   T52]  ret_from_fork_asm+0x1a/0x30
[  371.620841][   T52]  </TASK>
[  371.621022][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  371.621110][   T52] Bluetooth: hci2: failed to register connection device
[  371.665445][   T52] Bluetooth: hci2: command 0x2016 tx timeout
[  371.802361][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  371.802435][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  371.802510][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  371.802545][   T52] Workqueue: hci2 hci_rx_work
[  371.802661][   T52] Call Trace:
[  371.802699][   T52]  <TASK>
[  371.802730][   T52]  dump_stack_lvl+0xe8/0x150
[  371.802835][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  371.802922][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  371.803015][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  371.803105][   T52]  kobject_add_internal+0x622/0xcd0
[  371.803202][   T52]  kobject_add+0x163/0x240
[  371.803296][   T52]  ? __pfx_kobject_add+0x10/0x10
[  371.803385][   T52]  ? get_device_parent+0x366/0x3a0
[  371.803469][   T52]  device_add+0x3fa/0xb80
[  371.803563][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  371.803670][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  371.803757][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  371.803841][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  371.803918][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  371.804008][   T52]  ? skb_pull_data+0xf0/0x200
[  371.804116][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  371.804211][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  371.804299][   T52]  hci_event_packet+0x67a/0xf10
[  371.804414][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  371.804477][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  371.804584][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  371.804671][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  371.804757][   T52]  hci_rx_work+0x3ee/0x1020
[  371.804867][   T52]  ? process_scheduled_works+0x97a/0x1630
[  371.804940][   T52]  process_scheduled_works+0xc3d/0x1630
[  371.805094][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  371.805183][   T52]  ? assign_work+0x3cf/0x5d0
[  371.805255][   T52]  worker_thread+0xa47/0xfb0
[  371.805343][   T52]  kthread+0x38b/0x480
[  371.805401][   T52]  ? __pfx_worker_thread+0x10/0x10
[  371.805477][   T52]  ? __pfx_kthread+0x10/0x10
[  371.805580][   T52]  ret_from_fork+0x514/0xb70
[  371.805680][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  371.805762][   T52]  ? __switch_to+0xc89/0x1420
[  371.805846][   T52]  ? __pfx_kthread+0x10/0x10
[  371.805939][   T52]  ret_from_fork_asm+0x1a/0x30
[  371.806055][   T52]  </TASK>
[  371.806305][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  371.806405][   T52] Bluetooth: hci2: failed to register connection device
[  371.968628][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  371.972777][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  371.972849][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  371.972890][   T52] Workqueue: hci2 hci_rx_work
[  371.972996][   T52] Call Trace:
[  371.973018][   T52]  <TASK>
[  371.973049][   T52]  dump_stack_lvl+0xe8/0x150
[  371.973141][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  371.973222][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  371.973298][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  371.973381][   T52]  kobject_add_internal+0x622/0xcd0
[  371.973482][   T52]  kobject_add+0x163/0x240
[  371.973566][   T52]  ? __pfx_kobject_add+0x10/0x10
[  371.973662][   T52]  ? get_device_parent+0x366/0x3a0
[  371.973745][   T52]  device_add+0x3fa/0xb80
[  371.973779][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  371.973834][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  371.973865][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  371.973895][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  371.973925][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  371.973955][   T52]  ? skb_pull_data+0xf0/0x200
[  371.973992][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  371.974023][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  371.974056][   T52]  hci_event_packet+0x67a/0xf10
[  371.974098][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  371.974123][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  371.974164][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  371.974194][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  371.974228][   T52]  hci_rx_work+0x3ee/0x1020
[  371.974271][   T52]  ? process_scheduled_works+0x97a/0x1630
[  371.974300][   T52]  process_scheduled_works+0xc3d/0x1630
[  371.974489][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  371.974615][   T52]  ? assign_work+0x3cf/0x5d0
[  371.974709][   T52]  worker_thread+0xa47/0xfb0
[  371.974857][   T52]  kthread+0x38b/0x480
[  371.974942][   T52]  ? __pfx_worker_thread+0x10/0x10
[  371.975032][   T52]  ? __pfx_kthread+0x10/0x10
[  371.975112][   T52]  ret_from_fork+0x514/0xb70
[  371.975202][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  371.975284][   T52]  ? __switch_to+0xc89/0x1420
[  371.975364][   T52]  ? __pfx_kthread+0x10/0x10
[  371.975454][   T52]  ret_from_fork_asm+0x1a/0x30
[  371.975590][   T52]  </TASK>
[  371.975656][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  371.975759][   T52] Bluetooth: hci2: failed to register connection device
[  372.129930][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  372.130001][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  372.130070][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  372.130110][   T52] Workqueue: hci2 hci_rx_work
[  372.130223][   T52] Call Trace:
[  372.130245][   T52]  <TASK>
[  372.130278][   T52]  dump_stack_lvl+0xe8/0x150
[  372.130364][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  372.130458][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  372.130551][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  372.130649][   T52]  kobject_add_internal+0x622/0xcd0
[  372.130776][   T52]  kobject_add+0x163/0x240
[  372.130877][   T52]  ? __pfx_kobject_add+0x10/0x10
[  372.130973][   T52]  ? get_device_parent+0x366/0x3a0
[  372.131064][   T52]  device_add+0x3fa/0xb80
[  372.131148][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  372.131252][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  372.131343][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  372.131419][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  372.131497][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  372.131593][   T52]  ? skb_pull_data+0xf0/0x200
[  372.131689][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  372.131769][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  372.131853][   T52]  hci_event_packet+0x67a/0xf10
[  372.131956][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  372.132019][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  372.132139][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  372.132236][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  372.132318][   T52]  hci_rx_work+0x3ee/0x1020
[  372.132429][   T52]  ? process_scheduled_works+0x97a/0x1630
[  372.132500][   T52]  process_scheduled_works+0xc3d/0x1630
[  372.132647][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  372.132745][   T52]  ? assign_work+0x3cf/0x5d0
[  372.132818][   T52]  worker_thread+0xa47/0xfb0
[  372.132956][   T52]  kthread+0x38b/0x480
[  372.133045][   T52]  ? __pfx_worker_thread+0x10/0x10
[  372.133088][   T52]  ? __pfx_kthread+0x10/0x10
[  372.133171][   T52]  ret_from_fork+0x514/0xb70
[  372.133262][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  372.133351][   T52]  ? __switch_to+0xc89/0x1420
[  372.133433][   T52]  ? __pfx_kthread+0x10/0x10
[  372.133540][   T52]  ret_from_fork_asm+0x1a/0x30
[  372.133683][   T52]  </TASK>
[  372.134009][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  372.134095][   T52] Bluetooth: hci2: failed to register connection device
[  372.317377][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  372.317451][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  372.317529][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  372.317564][   T52] Workqueue: hci2 hci_rx_work
[  372.317696][   T52] Call Trace:
[  372.317719][   T52]  <TASK>
[  372.317757][   T52]  dump_stack_lvl+0xe8/0x150
[  372.317844][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  372.317938][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  372.318037][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  372.318122][   T52]  kobject_add_internal+0x622/0xcd0
[  372.318221][   T52]  kobject_add+0x163/0x240
[  372.318312][   T52]  ? __pfx_kobject_add+0x10/0x10
[  372.318397][   T52]  ? get_device_parent+0x366/0x3a0
[  372.318488][   T52]  device_add+0x3fa/0xb80
[  372.318581][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  372.318675][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  372.318758][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  372.318835][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  372.318918][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  372.319004][   T52]  ? skb_pull_data+0xf0/0x200
[  372.319122][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  372.319206][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  372.319285][   T52]  hci_event_packet+0x67a/0xf10
[  372.319391][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  372.319462][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  372.319555][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  372.319630][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  372.319715][   T52]  hci_rx_work+0x3ee/0x1020
[  372.319832][   T52]  ? process_scheduled_works+0x97a/0x1630
[  372.319906][   T52]  process_scheduled_works+0xc3d/0x1630
[  372.320069][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  372.320155][   T52]  ? assign_work+0x3cf/0x5d0
[  372.320233][   T52]  worker_thread+0xa47/0xfb0
[  372.320378][   T52]  kthread+0x38b/0x480
[  372.320457][   T52]  ? __pfx_worker_thread+0x10/0x10
[  372.320530][   T52]  ? __pfx_kthread+0x10/0x10
[  372.320626][   T52]  ret_from_fork+0x514/0xb70
[  372.320722][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  372.320808][   T52]  ? __switch_to+0xc89/0x1420
[  372.320892][   T52]  ? __pfx_kthread+0x10/0x10
[  372.320990][   T52]  ret_from_fork_asm+0x1a/0x30
[  372.321118][   T52]  </TASK>
[  372.321296][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  372.321399][   T52] Bluetooth: hci2: failed to register connection device
[  372.513960][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  372.514033][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  372.514096][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  372.514146][   T52] Workqueue: hci2 hci_rx_work
[  372.514249][   T52] Call Trace:
[  372.514280][   T52]  <TASK>
[  372.514304][   T52]  dump_stack_lvl+0xe8/0x150
[  372.514352][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  372.514385][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  372.514495][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  372.514605][   T52]  kobject_add_internal+0x622/0xcd0
[  372.514708][   T52]  kobject_add+0x163/0x240
[  372.514793][   T52]  ? __pfx_kobject_add+0x10/0x10
[  372.514884][   T52]  ? get_device_parent+0x366/0x3a0
[  372.514985][   T52]  device_add+0x3fa/0xb80
[  372.515079][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  372.515183][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  372.515261][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  372.515352][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  372.515432][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  372.515509][   T52]  ? skb_pull_data+0xf0/0x200
[  372.515593][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  372.515662][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  372.515741][   T52]  hci_event_packet+0x67a/0xf10
[  372.515867][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  372.515932][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  372.516053][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  372.516128][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  372.516221][   T52]  hci_rx_work+0x3ee/0x1020
[  372.516330][   T52]  ? process_scheduled_works+0x97a/0x1630
[  372.516404][   T52]  process_scheduled_works+0xc3d/0x1630
[  372.516567][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  372.516656][   T52]  ? assign_work+0x3cf/0x5d0
[  372.516725][   T52]  worker_thread+0xa47/0xfb0
[  372.516867][   T52]  kthread+0x38b/0x480
[  372.516939][   T52]  ? __pfx_worker_thread+0x10/0x10
[  372.517006][   T52]  ? __pfx_kthread+0x10/0x10
[  372.517107][   T52]  ret_from_fork+0x514/0xb70
[  372.517201][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  372.517294][   T52]  ? __switch_to+0xc89/0x1420
[  372.517383][   T52]  ? __pfx_kthread+0x10/0x10
[  372.517470][   T52]  ret_from_fork_asm+0x1a/0x30
[  372.517596][   T52]  </TASK>
[  372.517814][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  372.517920][   T52] Bluetooth: hci2: failed to register connection device
[  372.721320][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  372.721429][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  372.721502][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  372.721537][   T52] Workqueue: hci2 hci_rx_work
[  372.721655][   T52] Call Trace:
[  372.721685][   T52]  <TASK>
[  372.721710][   T52]  dump_stack_lvl+0xe8/0x150
[  372.721796][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  372.721890][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  372.721974][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  372.722067][   T52]  kobject_add_internal+0x622/0xcd0
[  372.722180][   T52]  kobject_add+0x163/0x240
[  372.722268][   T52]  ? __pfx_kobject_add+0x10/0x10
[  372.722356][   T52]  ? get_device_parent+0x366/0x3a0
[  372.722468][   T52]  device_add+0x3fa/0xb80
[  372.722561][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  372.722676][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  372.722780][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  372.722866][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  372.722945][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  372.723022][   T52]  ? skb_pull_data+0xf0/0x200
[  372.723125][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  372.723203][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  372.723298][   T52]  hci_event_packet+0x67a/0xf10
[  372.723414][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  372.723481][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  372.723583][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  372.723670][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  372.723756][   T52]  hci_rx_work+0x3ee/0x1020
[  372.723874][   T52]  ? process_scheduled_works+0x97a/0x1630
[  372.723943][   T52]  process_scheduled_works+0xc3d/0x1630
[  372.724152][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  372.724272][   T52]  ? assign_work+0x3cf/0x5d0
[  372.724356][   T52]  worker_thread+0xa47/0xfb0
[  372.724513][   T52]  kthread+0x38b/0x480
[  372.724599][   T52]  ? __pfx_worker_thread+0x10/0x10
[  372.724664][   T52]  ? __pfx_kthread+0x10/0x10
[  372.724756][   T52]  ret_from_fork+0x514/0xb70
[  372.724850][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  372.724938][   T52]  ? __switch_to+0xc89/0x1420
[  372.725026][   T52]  ? __pfx_kthread+0x10/0x10
[  372.725101][   T52]  ret_from_fork_asm+0x1a/0x30
[  372.725232][   T52]  </TASK>
[  372.725713][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  372.725808][   T52] Bluetooth: hci2: failed to register connection device
[  372.899464][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  372.899556][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  372.899612][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  372.899653][   T52] Workqueue: hci2 hci_rx_work
[  372.899757][   T52] Call Trace:
[  372.899779][   T52]  <TASK>
[  372.899809][   T52]  dump_stack_lvl+0xe8/0x150
[  372.899887][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  372.899973][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  372.900056][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  372.900140][   T52]  kobject_add_internal+0x622/0xcd0
[  372.900242][   T52]  kobject_add+0x163/0x240
[  372.900335][   T52]  ? __pfx_kobject_add+0x10/0x10
[  372.900430][   T52]  ? get_device_parent+0x366/0x3a0
[  372.900535][   T52]  device_add+0x3fa/0xb80
[  372.900623][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  372.900748][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  372.900838][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  372.900910][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  372.900982][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  372.901062][   T52]  ? skb_pull_data+0xf0/0x200
[  372.901156][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  372.901234][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  372.901322][   T52]  hci_event_packet+0x67a/0xf10
[  372.901440][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  372.901506][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  372.901615][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  372.901693][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  372.901789][   T52]  hci_rx_work+0x3ee/0x1020
[  372.901892][   T52]  ? process_scheduled_works+0x97a/0x1630
[  372.901975][   T52]  process_scheduled_works+0xc3d/0x1630
[  372.902144][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  372.902257][   T52]  ? assign_work+0x3cf/0x5d0
[  372.902346][   T52]  worker_thread+0xa47/0xfb0
[  372.902505][   T52]  kthread+0x38b/0x480
[  372.902602][   T52]  ? __pfx_worker_thread+0x10/0x10
[  372.902667][   T52]  ? __pfx_kthread+0x10/0x10
[  372.902774][   T52]  ret_from_fork+0x514/0xb70
[  372.902870][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  372.902942][   T52]  ? __switch_to+0xc89/0x1420
[  372.903022][   T52]  ? __pfx_kthread+0x10/0x10
[  372.903113][   T52]  ret_from_fork_asm+0x1a/0x30
[  372.903240][   T52]  </TASK>
[  372.907514][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  372.907660][   T52] Bluetooth: hci2: failed to register connection device
[  373.074455][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  373.074568][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  373.074640][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  373.074688][   T52] Workqueue: hci2 hci_rx_work
[  373.074813][   T52] Call Trace:
[  373.074843][   T52]  <TASK>
[  373.074873][   T52]  dump_stack_lvl+0xe8/0x150
[  373.074956][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  373.075061][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  373.075161][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  373.075244][   T52]  kobject_add_internal+0x622/0xcd0
[  373.075337][   T52]  kobject_add+0x163/0x240
[  373.075421][   T52]  ? __pfx_kobject_add+0x10/0x10
[  373.075537][   T52]  ? get_device_parent+0x366/0x3a0
[  373.075632][   T52]  device_add+0x3fa/0xb80
[  373.075722][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  373.075816][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  373.075896][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  373.075987][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  373.076051][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  373.076081][   T52]  ? skb_pull_data+0xf0/0x200
[  373.076118][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  373.076213][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  373.076312][   T52]  hci_event_packet+0x67a/0xf10
[  373.076426][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  373.076491][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  373.076604][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  373.076690][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  373.076770][   T52]  hci_rx_work+0x3ee/0x1020
[  373.076879][   T52]  ? process_scheduled_works+0x97a/0x1630
[  373.076954][   T52]  process_scheduled_works+0xc3d/0x1630
[  373.077099][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  373.077192][   T52]  ? assign_work+0x3cf/0x5d0
[  373.077277][   T52]  worker_thread+0xa47/0xfb0
[  373.077423][   T52]  kthread+0x38b/0x480
[  373.077527][   T52]  ? __pfx_worker_thread+0x10/0x10
[  373.077600][   T52]  ? __pfx_kthread+0x10/0x10
[  373.077715][   T52]  ret_from_fork+0x514/0xb70
[  373.077811][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  373.077897][   T52]  ? __switch_to+0xc89/0x1420
[  373.077967][   T52]  ? __pfx_kthread+0x10/0x10
[  373.078074][   T52]  ret_from_fork_asm+0x1a/0x30
[  373.078199][   T52]  </TASK>
[  373.078335][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  373.078429][   T52] Bluetooth: hci2: failed to register connection device
[  373.247966][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  373.248064][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  373.248122][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  373.248163][   T52] Workqueue: hci2 hci_rx_work
[  373.248268][   T52] Call Trace:
[  373.248291][   T52]  <TASK>
[  373.248320][   T52]  dump_stack_lvl+0xe8/0x150
[  373.248415][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  373.248523][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  373.248616][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  373.248709][   T52]  kobject_add_internal+0x622/0xcd0
[  373.248807][   T52]  kobject_add+0x163/0x240
[  373.248881][   T52]  ? __pfx_kobject_add+0x10/0x10
[  373.248997][   T52]  ? get_device_parent+0x366/0x3a0
[  373.249142][   T52]  device_add+0x3fa/0xb80
[  373.249236][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  373.249340][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  373.249424][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  373.249510][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  373.249593][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  373.249669][   T52]  ? skb_pull_data+0xf0/0x200
[  373.249770][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  373.249853][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  373.249939][   T52]  hci_event_packet+0x67a/0xf10
[  373.250050][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  373.250121][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  373.250228][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  373.250319][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  373.250435][   T52]  hci_rx_work+0x3ee/0x1020
[  373.250562][   T52]  ? process_scheduled_works+0x97a/0x1630
[  373.250639][   T52]  process_scheduled_works+0xc3d/0x1630
[  373.250770][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  373.250853][   T52]  ? assign_work+0x3cf/0x5d0
[  373.250935][   T52]  worker_thread+0xa47/0xfb0
[  373.251070][   T52]  kthread+0x38b/0x480
[  373.251158][   T52]  ? __pfx_worker_thread+0x10/0x10
[  373.251221][   T52]  ? __pfx_kthread+0x10/0x10
[  373.251310][   T52]  ret_from_fork+0x514/0xb70
[  373.251403][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  373.251483][   T52]  ? __switch_to+0xc89/0x1420
[  373.251565][   T52]  ? __pfx_kthread+0x10/0x10
[  373.251648][   T52]  ret_from_fork_asm+0x1a/0x30
[  373.251779][   T52]  </TASK>
[  373.252170][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  373.252207][   T52] Bluetooth: hci2: failed to register connection device
[  373.403591][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  373.403619][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  373.403645][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  373.403660][   T52] Workqueue: hci2 hci_rx_work
[  373.403700][   T52] Call Trace:
[  373.403710][   T52]  <TASK>
[  373.403720][   T52]  dump_stack_lvl+0xe8/0x150
[  373.403753][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  373.403789][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  373.403823][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  373.403862][   T52]  kobject_add_internal+0x622/0xcd0
[  373.403899][   T52]  kobject_add+0x163/0x240
[  373.403932][   T52]  ? __pfx_kobject_add+0x10/0x10
[  373.403970][   T52]  ? get_device_parent+0x366/0x3a0
[  373.404020][   T52]  device_add+0x3fa/0xb80
[  373.404055][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  373.404094][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  373.404206][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  373.404310][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  373.404382][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  373.404459][   T52]  ? skb_pull_data+0xf0/0x200
[  373.404550][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  373.404626][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  373.404718][   T52]  hci_event_packet+0x67a/0xf10
[  373.404835][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  373.404908][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  373.405018][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  373.405101][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  373.405185][   T52]  hci_rx_work+0x3ee/0x1020
[  373.405296][   T52]  ? process_scheduled_works+0x97a/0x1630
[  373.405371][   T52]  process_scheduled_works+0xc3d/0x1630
[  373.405583][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  373.405692][   T52]  ? assign_work+0x3cf/0x5d0
[  373.405777][   T52]  worker_thread+0xa47/0xfb0
[  373.405928][   T52]  kthread+0x38b/0x480
[  373.406024][   T52]  ? __pfx_worker_thread+0x10/0x10
[  373.406098][   T52]  ? __pfx_kthread+0x10/0x10
[  373.406195][   T52]  ret_from_fork+0x514/0xb70
[  373.406275][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  373.406359][   T52]  ? __switch_to+0xc89/0x1420
[  373.406445][   T52]  ? __pfx_kthread+0x10/0x10
[  373.406544][   T52]  ret_from_fork_asm+0x1a/0x30
[  373.406674][   T52]  </TASK>
[  373.409672][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  373.409812][   T52] Bluetooth: hci2: failed to register connection device
[  373.653087][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  373.653220][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  373.653285][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  373.653316][   T52] Workqueue: hci2 hci_rx_work
[  373.653407][   T52] Call Trace:
[  373.653427][   T52]  <TASK>
[  373.653454][   T52]  dump_stack_lvl+0xe8/0x150
[  373.653526][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  373.653627][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  373.653699][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  373.653782][   T52]  kobject_add_internal+0x622/0xcd0
[  373.653899][   T52]  kobject_add+0x163/0x240
[  373.653998][   T52]  ? __pfx_kobject_add+0x10/0x10
[  373.654081][   T52]  ? get_device_parent+0x366/0x3a0
[  373.654168][   T52]  device_add+0x3fa/0xb80
[  373.654258][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  373.654346][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  373.654426][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  373.654498][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  373.654570][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  373.654645][   T52]  ? skb_pull_data+0xf0/0x200
[  373.654737][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  373.654807][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  373.654896][   T52]  hci_event_packet+0x67a/0xf10
[  373.654995][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  373.655054][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  373.655158][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  373.655230][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  373.655321][   T52]  hci_rx_work+0x3ee/0x1020
[  373.655432][   T52]  ? process_scheduled_works+0x97a/0x1630
[  373.655529][   T52]  process_scheduled_works+0xc3d/0x1630
[  373.655656][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  373.655737][   T52]  ? assign_work+0x3cf/0x5d0
[  373.655845][   T52]  worker_thread+0xa47/0xfb0
[  373.655997][   T52]  kthread+0x38b/0x480
[  373.656081][   T52]  ? __pfx_worker_thread+0x10/0x10
[  373.656144][   T52]  ? __pfx_kthread+0x10/0x10
[  373.656250][   T52]  ret_from_fork+0x514/0xb70
[  373.656342][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  373.656369][   T52]  ? __switch_to+0xc89/0x1420
[  373.656417][   T52]  ? __pfx_kthread+0x10/0x10
[  373.656507][   T52]  ret_from_fork_asm+0x1a/0x30
[  373.656650][   T52]  </TASK>
[  373.656727][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  373.656824][   T52] Bluetooth: hci2: failed to register connection device
[  373.743029][   T52] Bluetooth: hci2: command 0x2016 tx timeout
[  373.802706][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  373.802780][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  373.802845][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  373.802897][   T52] Workqueue: hci2 hci_rx_work
[  373.803004][   T52] Call Trace:
[  373.803026][   T52]  <TASK>
[  373.803057][   T52]  dump_stack_lvl+0xe8/0x150
[  373.803144][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  373.803238][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  373.803329][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  373.803427][   T52]  kobject_add_internal+0x622/0xcd0
[  373.803521][   T52]  kobject_add+0x163/0x240
[  373.803612][   T52]  ? __pfx_kobject_add+0x10/0x10
[  373.803706][   T52]  ? get_device_parent+0x366/0x3a0
[  373.803759][   T52]  device_add+0x3fa/0xb80
[  373.803794][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  373.803898][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  373.804006][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  373.804079][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  373.804161][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  373.804236][   T52]  ? skb_pull_data+0xf0/0x200
[  373.804331][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  373.804418][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  373.804502][   T52]  hci_event_packet+0x67a/0xf10
[  373.804608][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  373.804670][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  373.804781][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  373.804857][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  373.804961][   T52]  hci_rx_work+0x3ee/0x1020
[  373.805069][   T52]  ? process_scheduled_works+0x97a/0x1630
[  373.805144][   T52]  process_scheduled_works+0xc3d/0x1630
[  373.805325][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  373.805424][   T52]  ? assign_work+0x3cf/0x5d0
[  373.805506][   T52]  worker_thread+0xa47/0xfb0
[  373.805654][   T52]  kthread+0x38b/0x480
[  373.805737][   T52]  ? __pfx_worker_thread+0x10/0x10
[  373.805805][   T52]  ? __pfx_kthread+0x10/0x10
[  373.805908][   T52]  ret_from_fork+0x514/0xb70
[  373.805997][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  373.806087][   T52]  ? __switch_to+0xc89/0x1420
[  373.806170][   T52]  ? __pfx_kthread+0x10/0x10
[  373.806246][   T52]  ret_from_fork_asm+0x1a/0x30
[  373.806371][   T52]  </TASK>
[  373.806688][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  373.806799][   T52] Bluetooth: hci2: failed to register connection device
[  373.997739][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  373.997812][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  373.997887][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  373.997930][   T52] Workqueue: hci2 hci_rx_work
[  373.998044][   T52] Call Trace:
[  373.998070][   T52]  <TASK>
[  373.998133][   T52]  dump_stack_lvl+0xe8/0x150
[  373.998211][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  373.998315][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  373.998366][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  373.998400][   T52]  kobject_add_internal+0x622/0xcd0
[  373.998438][   T52]  kobject_add+0x163/0x240
[  373.998543][   T52]  ? __pfx_kobject_add+0x10/0x10
[  373.998647][   T52]  ? get_device_parent+0x366/0x3a0
[  373.998749][   T52]  device_add+0x3fa/0xb80
[  373.998843][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  373.998946][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  373.999031][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  373.999113][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  373.999201][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  373.999279][   T52]  ? skb_pull_data+0xf0/0x200
[  373.999390][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  373.999466][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  373.999551][   T52]  hci_event_packet+0x67a/0xf10
[  373.999666][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  373.999731][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  373.999836][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  373.999936][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  374.000048][   T52]  hci_rx_work+0x3ee/0x1020
[  374.000154][   T52]  ? process_scheduled_works+0x97a/0x1630
[  374.000241][   T52]  process_scheduled_works+0xc3d/0x1630
[  374.000392][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  374.000479][   T52]  ? assign_work+0x3cf/0x5d0
[  374.000561][   T52]  worker_thread+0xa47/0xfb0
[  374.000710][   T52]  kthread+0x38b/0x480
[  374.000804][   T52]  ? __pfx_worker_thread+0x10/0x10
[  374.000888][   T52]  ? __pfx_kthread+0x10/0x10
[  374.000975][   T52]  ret_from_fork+0x514/0xb70
[  374.001069][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  374.001160][   T52]  ? __switch_to+0xc89/0x1420
[  374.001242][   T52]  ? __pfx_kthread+0x10/0x10
[  374.001342][   T52]  ret_from_fork_asm+0x1a/0x30
[  374.001494][   T52]  </TASK>
[  374.001741][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  374.001827][   T52] Bluetooth: hci2: failed to register connection device
[  374.166013][   T52] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[  374.166085][   T52] CPU: 0 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted syzkaller #0 PREEMPT(full) 
[  374.166149][   T52] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  374.166188][   T52] Workqueue: hci2 hci_rx_work
[  374.166281][   T52] Call Trace:
[  374.166312][   T52]  <TASK>
[  374.166341][   T52]  dump_stack_lvl+0xe8/0x150
[  374.166419][   T52]  sysfs_create_dir_ns+0x271/0x2a0
[  374.166502][   T52]  ? __pfx_sysfs_create_dir_ns+0x10/0x10
[  374.166592][   T52]  ? do_raw_spin_unlock+0xf5/0x200
[  374.166690][   T52]  kobject_add_internal+0x622/0xcd0
[  374.166784][   T52]  kobject_add+0x163/0x240
[  374.166877][   T52]  ? __pfx_kobject_add+0x10/0x10
[  374.166969][   T52]  ? get_device_parent+0x366/0x3a0
[  374.167061][   T52]  device_add+0x3fa/0xb80
[  374.167144][   T52]  hci_conn_add_sysfs+0xd5/0x210
[  374.167235][   T52]  le_conn_complete_evt+0x10b2/0x17a0
[  374.167316][   T52]  ? le_conn_complete_evt+0x210/0x17a0
[  374.167389][   T52]  ? __pfx_le_conn_complete_evt+0x10/0x10
[  374.167456][   T52]  ? __mutex_unlock_slowpath+0x731/0x900
[  374.167515][   T52]  ? skb_pull_data+0xf0/0x200
[  374.167642][   T52]  hci_le_enh_conn_complete_evt+0x189/0x490
[  374.167719][   T52]  ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[  374.167803][   T52]  hci_event_packet+0x67a/0xf10
[  374.167906][   T52]  ? __pfx_hci_le_meta_evt+0x10/0x10
[  374.167969][   T52]  ? __pfx_hci_event_packet+0x10/0x10
[  374.168111][   T52]  ? audit_filter_rules+0x4180/0x5d10
[  374.168192][   T52]  ? hci_send_to_monitor+0xe2/0x590
[  374.168278][   T52]  hci_rx_work+0x3ee/0x1020
[  374.168387][   T52]  ? process_scheduled_works+0x97a/0x1630
[  374.168455][   T52]  process_scheduled_works+0xc3d/0x1630
[  374.168610][   T52]  ? __pfx_process_scheduled_works+0x10/0x10
[  374.168694][   T52]  ? assign_work+0x3cf/0x5d0
[  374.168776][   T52]  worker_thread+0xa47/0xfb0
[  374.168918][   T52]  kthread+0x38b/0x480
[  374.169052][   T52]  ? __pfx_worker_thread+0x10/0x10
[  374.169132][   T52]  ? __pfx_kthread+0x10/0x10
[  374.169224][   T52]  ret_from_fork+0x514/0xb70
[  374.169310][   T52]  ? __pfx_ret_from_fork+0x10/0x10
[  374.169394][   T52]  ? __switch_to+0xc89/0x1420
[  374.169471][   T52]  ? __pfx_kthread+0x10/0x10
[  374.169557][   T52]  ret_from_fork_asm+0x1a/0x30
[  374.169681][   T52]  </TASK>
[  374.170029][   T52] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[  374.170126][   T52] Bluetooth: hci2: failed to register connection device
[  374.232197][   T32] INFO: task syz-executor:5754 blocked for more than 143 seconds.
[  374.232329][   T32]       Not tainted syzkaller #0
[  374.232370][   T32]       Blocked by coredump.
[  374.232392][   T32] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  374.232435][   T32] task:syz-executor    state:D stack:21992 pid:5754  tgid:5754  ppid:1      task_flags:0x40054c flags:0x00080003
[  374.232601][   T32] Call Trace:
[  374.232623][   T32]  <TASK>
[  374.232665][   T32]  __schedule+0x1b57/0x5bc0
[  374.232776][   T32]  ? __lock_acquire+0x6df/0x2e50
[  374.232860][   T32]  ? lock_acquire+0x115/0x350
[  374.232984][   T32]  ? look_up_lock_class+0x57/0x110
[  374.233061][   T32]  ? __pfx___schedule+0x10/0x10
[  374.233144][   T32]  ? lock_acquire+0x115/0x350
[  374.233287][   T32]  ? schedule+0x90/0x2b0
[  374.233391][   T32]  schedule+0x164/0x2b0
[  374.239924][   T32]  schedule_timeout+0xc0/0x2c0
[  374.240048][   T32]  ? __pfx_schedule_timeout+0x10/0x10
[  374.240138][   T32]  ? do_raw_spin_lock+0x12b/0x2f0
[  374.240238][   T32]  ? _raw_spin_unlock_irq+0x23/0x50
[  374.240329][   T32]  ? wait_for_completion+0x272/0x5e0
[  374.240391][   T32]  wait_for_completion+0x2ca/0x5e0
[  374.240470][   T32]  ? __pfx_wait_for_completion+0x10/0x10
[  374.240544][   T32]  ? __flush_work+0x101/0xca0
[  374.240643][   T32]  __flush_work+0xa63/0xca0
[  374.240731][   T32]  ? __flush_work+0x101/0xca0
[  374.240825][   T32]  ? __pfx___flush_work+0x10/0x10
[  374.240928][   T32]  ? __pfx_wq_barrier_func+0x10/0x10
[  374.241049][   T32]  ? __cancel_work_sync+0x5c/0x110
[  374.241170][   T32]  __cancel_work_sync+0xbf/0x110
[  374.241241][   T32]  hci_cmd_sync_clear+0x30/0x230
[  374.241336][   T32]  ? disable_delayed_work_sync+0x5b/0xf0
[  374.241484][   T32]  hci_unregister_dev+0x1ac/0x5b0
[  374.256920][   T32]  vhci_release+0x16d/0x1c0
[  374.257044][   T32]  ? __pfx_vhci_release+0x10/0x10
[  374.257125][   T32]  __fput+0x418/0xa50
[  374.257216][   T32]  task_work_run+0x1d9/0x270
[  374.257313][   T32]  ? __pfx_task_work_run+0x10/0x10
[  374.257410][   T32]  ? do_exit+0x735/0x2360
[  374.257485][   T32]  ? kmem_cache_free+0x182/0x650
[  374.257568][   T32]  ? put_net+0x191/0x260
[  374.257650][   T32]  do_exit+0x73a/0x2360
[  374.257734][   T32]  ? fput_close_sync+0x11f/0x240
[  374.257789][   T32]  ? __x64_sys_close+0x7e/0x110
[  374.257880][   T32]  ? __pfx_do_exit+0x10/0x10
[  374.257981][   T32]  ? do_raw_spin_lock+0x12b/0x2f0
[  374.258089][   T32]  do_group_exit+0x22d/0x2f0
[  374.258173][   T32]  ? _raw_spin_unlock_irq+0x23/0x50
[  374.258273][   T32]  get_signal+0x121b/0x12c0
[  374.258420][   T32]  arch_do_signal_or_restart+0xbb/0x860
[  374.268100][   T32]  ? __pfx_arch_do_signal_or_restart+0x10/0x10
[  374.268225][   T32]  ? kmem_cache_free+0x471/0x650
[  374.268342][   T32]  ? fput_close_sync+0x11f/0x240
[  374.268433][   T32]  exit_to_user_mode_loop+0x10e/0x770
[  374.268530][   T32]  ? rcu_is_watching+0x16/0xb0
[  374.268615][   T32]  do_syscall_64+0x328/0x520
[  374.268679][   T32]  ? trace_irq_disable+0x3b/0x140
[  374.268768][   T32]  ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  374.268838][   T32]  ? clear_bhb_loop+0x70/0xc0
[  374.268930][   T32]  entry_SYSCALL_64_after_hwframe+0x77/0x7f
[  374.268953][   T32] RIP: 0033:0x7fcdf0f5e90e
[  374.268986][   T32] RSP: 002b:00007ffc1753c6a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[  374.269048][   T32] RAX: 0000000000000000 RBX: 0000555567cbc500 RCX: 00007fcdf0f5e90e
[  374.269107][   T32] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003
[  374.269151][   T32] RBP: 00007ffc1753c74c R08: 0000000000000000 R09: 0000000000000000
[  374.269228][   T32] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000258
[  374.269277][   T32] R13: 00000000000927c0 R14: 0000000000033737 R15: 00007ffc1753c7a0
[  374.269379][   T32]  </TASK>
[  374.276791][   T32] 
[  374.276791][   T32] Showing all locks held in the system:
[  374.276836][   T32] locks held by pr/ttyS0/16: 2, last CPU#1:
[  374.276891][   T32]  #0: ffffffff8ee36638 (console_srcu){....}-{0:0}, at: console_srcu_read_lock+0x30/0x60
[  374.277069][   T32]  #1: ffffffff9af811f8 (&port_lock_key){-.-.}-{3:3}, at: univ8250_console_device_lock+0x67/0xc0
[  374.277239][   T32] locks held by khungtaskd/32: 1, last CPU#0:
[  374.277289][   T32]  #0: ffffffff8ef5ca60 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[  374.277510][   T32] locks held by kworker/u9:1/4935: 3, on CPU#0:
[  374.277561][   T32]  #0: ffff88802a14a940 ((wq_completion)hci0){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  374.277740][   T32]  #1: ffffc9000eabfc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  374.277917][   T32]  #2: ffff88802c390ea0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1cb/0x3f0
[  374.278085][   T32] locks held by getty/5374: 2, on CPU#1:
[  374.278127][   T32]  #0: ffff888036bbe0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[  374.278286][   T32]  #1: ffffc900032332e8 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45a/0x1360
[  374.288259][   T32] locks held by kworker/u9:3/6284: 3, on CPU#0:
[  374.288323][   T32]  #0: ffff88802b81c940 ((wq_completion)hci1){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  374.288507][   T32]  #1: ffffc9000348fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  374.288674][   T32]  #2: ffff888069f60ea0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1cb/0x3f0
[  374.288862][   T32] locks held by kworker/u9:4/6711: 3, on CPU#0:
[  374.288916][   T32]  #0: ffff88807ec1a940 ((wq_completion)hci2){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  374.289157][   T32]  #1: ffffc9000382fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_scheduled_works+0x97a/0x1630
[  374.289317][   T32]  #2: ffff888069af4ea0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1cb/0x3f0
[  374.289493][   T32] locks held by syz-executor/7148: 1, last CPU#0:
[  374.289536][   T32]  #0: ffffffff8ef5ca60 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0x8f/0x2550
[  374.289694][   T32] locks held by dhcpcd/7357: 2, last CPU#0:
[  374.289737][   T32]  #0: ffff888077859948 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[  374.289897][   T32]  #1: ffffffff8ef5ca60 (rcu_read_lock){....}-{1:3}, at: do_pte_missing+0x140c/0x34b0
[  374.296580][   T32] 
[  374.296602][   T32] =============================================
[  374.296602][   T32] 
[  374.296644][   T32] NMI backtrace for cpu 0
[  374.296693][   T32] CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  374.296774][   T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  374.296815][   T32] Call Trace:
[  374.296838][   T32]  <TASK>
[  374.296867][   T32]  dump_stack_lvl+0xe8/0x150
[  374.296964][   T32]  nmi_cpu_backtrace+0x274/0x2d0
[  374.297049][   T32]  ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[  374.297146][   T32]  nmi_trigger_cpumask_backtrace+0x17d/0x390
[  374.297240][   T32]  sys_info+0x135/0x170
[  374.297317][   T32]  watchdog+0xfd7/0x1030
[  374.297413][   T32]  ? watchdog+0x1c7/0x1030
[  374.297527][   T32]  kthread+0x38b/0x480
[  374.297612][   T32]  ? __pfx_watchdog+0x10/0x10
[  374.297697][   T32]  ? __pfx_kthread+0x10/0x10
[  374.297787][   T32]  ret_from_fork+0x514/0xb70
[  374.297891][   T32]  ? __pfx_ret_from_fork+0x10/0x10
[  374.297976][   T32]  ? __switch_to+0xc89/0x1420
[  374.298055][   T32]  ? __pfx_kthread+0x10/0x10
[  374.298171][   T32]  ret_from_fork_asm+0x1a/0x30
[  374.298292][   T32]  </TASK>
[  374.298354][   T32] Sending NMI from CPU 0 to CPUs 1:
[  374.298416][    C1] NMI backtrace for cpu 1
[  374.298430][    C1] CPU: 1 UID: 0 PID: 16 Comm: pr/ttyS0 Not tainted syzkaller #0 PREEMPT(full) 
[  374.298453][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  374.298465][    C1] RIP: 0010:io_serial_in+0x77/0xc0
[  374.298497][    C1] Code: e8 0e 65 4c fc 44 89 f9 d3 e3 49 83 c6 40 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 ff 2a bc fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f e9 0a 90 75 06 cc 44 89 f9 80 e1 07
[  374.298515][    C1] RSP: 0000:ffffc900001578b8 EFLAGS: 00000002
[  374.298532][    C1] RAX: 1ffffffff35f0200 RBX: 00000000000003fd RCX: 0000000000000000
[  374.298546][    C1] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000020
[  374.298559][    C1] RBP: dffffc0000000000 R08: 0000000000000003 R09: 0000000000000004
[  374.298572][    C1] R10: dffffc0000000000 R11: ffffffff857b7b10 R12: dffffc0000000000
[  374.298587][    C1] R13: 0000000000000000 R14: ffffffff9af81220 R15: 0000000000000000
[  374.298600][    C1] FS:  0000000000000000(0000) GS:ffff88812498a000(0000) knlGS:0000000000000000
[  374.298617][    C1] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  374.298631][    C1] CR2: 00007fcf87ff36a0 CR3: 000000000ed48000 CR4: 00000000003526f0
[  374.298648][    C1] Call Trace:
[  374.298655][    C1]  <TASK>
[  374.298664][    C1]  wait_for_lsr+0x184/0x2f0
[  374.298695][    C1]  __serial8250_console_fifo_write+0xcd/0x3e0
[  374.298722][    C1]  serial8250_console_write+0xaa1/0x1200
[  374.298751][    C1]  ? console_prepend_message+0x200/0x320
[  374.298778][    C1]  ? __pfx_serial8250_console_write+0x10/0x10
[  374.298807][    C1]  ? __pfx_console_prepend_message+0x10/0x10
[  374.298837][    C1]  nbcon_emit_next_record+0xef5/0x1a90
[  374.298863][    C1]  ? __pfx_nbcon_emit_next_record+0x10/0x10
[  374.298898][    C1]  ? nbcon_context_try_acquire+0x819/0xbd0
[  374.298935][    C1]  ? _raw_spin_lock_irqsave+0x4c/0x60
[  374.298966][    C1]  nbcon_kthread_func+0x679/0x880
[  374.298998][    C1]  ? nbcon_kthread_func+0x163/0x880
[  374.299026][    C1]  ? __pfx_nbcon_kthread_func+0x10/0x10
[  374.299058][    C1]  ? __kthread_parkme+0x71/0x1f0
[  374.299084][    C1]  ? __kthread_parkme+0x199/0x1f0
[  374.299111][    C1]  kthread+0x38b/0x480
[  374.299138][    C1]  ? __pfx_nbcon_kthread_func+0x10/0x10
[  374.299165][    C1]  ? __pfx_kthread+0x10/0x10
[  374.299193][    C1]  ret_from_fork+0x514/0xb70
[  374.299221][    C1]  ? __pfx_ret_from_fork+0x10/0x10
[  374.299247][    C1]  ? __switch_to+0xc89/0x1420
[  374.299271][    C1]  ? __pfx_kthread+0x10/0x10
[  374.299298][    C1]  ret_from_fork_asm+0x1a/0x30
[  374.299332][    C1]  </TASK>
[  374.318134][   T32] Kernel panic - not syncing: hung_task: blocked tasks
[  402.831818][   T32] CPU: 0 UID: 0 PID: 32 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) 
[  402.840959][   T32] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
[  402.851040][   T32] Call Trace:
[  402.854344][   T32]  <TASK>
[  402.857299][   T32]  vpanic+0x56d/0xa60
[  402.861324][   T32]  ? __pfx___schedule+0x10/0x10
[  402.866302][   T32]  ? __pfx_vpanic+0x10/0x10
[  402.870850][   T32]  panic+0xc5/0xd0
[  402.874612][   T32]  ? __pfx_panic+0x10/0x10
[  402.879053][   T32]  ? preempt_schedule_common+0x7f/0xd0
[  402.884547][   T32]  ? preempt_schedule_thunk+0x16/0x40
[  402.889959][   T32]  ? nmi_trigger_cpumask_backtrace+0x31a/0x390
[  402.896150][   T32]  ? nmi_trigger_cpumask_backtrace+0x31f/0x390
[  402.902634][   T32]  watchdog+0x1030/0x1030
[  402.907002][   T32]  ? watchdog+0x1c7/0x1030
[  402.911453][   T32]  kthread+0x38b/0x480
[  402.915550][   T32]  ? __pfx_watchdog+0x10/0x10
[  402.920257][   T32]  ? __pfx_kthread+0x10/0x10
[  402.924915][   T32]  ret_from_fork+0x514/0xb70
[  402.929542][   T32]  ? __pfx_ret_from_fork+0x10/0x10
[  402.934685][   T32]  ? __switch_to+0xc89/0x1420
[  402.939387][   T32]  ? __pfx_kthread+0x10/0x10
[  402.944012][   T32]  ret_from_fork_asm+0x1a/0x30
[  402.948817][   T32]  </TASK>
[  402.952569][   T32] Kernel Offset: disabled
[  402.956917][   T32] Rebooting in 86400 seconds..