95] process_one_work+0x98b/0x1630
[ 426.164487][T14695] ? __pfx_process_one_work+0x10/0x10
[ 426.164507][T14695] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.164550][T14695] worker_thread+0xb49/0x1140
[ 426.164583][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.164623][T14695] kthread+0x388/0x470
[ 426.164642][T14695] ? __pfx_worker_thread+0x10/0x10
[ 426.164663][T14695] ? __pfx_kthread+0x10/0x10
[ 426.164683][T14695] ret_from_fork+0x514/0xb70
[ 426.164707][T14695] ? __pfx_ret_from_fork+0x10/0x10
[ 426.164727][T14695] ? __switch_to+0xc79/0x1410
[ 426.164756][T14695] ? __pfx_kthread+0x10/0x10
[ 426.164775][T14695] ret_from_fork_asm+0x1a/0x30
[ 426.164814][T14695]
[ 426.164863][T14695] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.164897][T14695] Bluetooth: hci5: failed to register connection device
[ 426.183706][T14695] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 426.183730][T14695] CPU: 1 UID: 0 PID: 14695 Comm: kworker/u9:9 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.183752][T14695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.183765][T14695] Workqueue: hci4 hci_rx_work
[ 426.183796][T14695] Call Trace:
[ 426.183804][T14695]
[ 426.183812][T14695] dump_stack_lvl+0xe8/0x150
[ 426.183838][T14695] sysfs_create_dir_ns+0x271/0x2a0
[ 426.183861][T14695] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.183885][T14695] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.183911][T14695] ? rt_spin_unlock+0x160/0x200
[ 426.183935][T14695] kobject_add_internal+0x631/0xd10
[ 426.183966][T14695] kobject_add+0x163/0x240
[ 426.183991][T14695] ? __pfx_kobject_add+0x10/0x10
[ 426.184019][T14695] ? get_device_parent+0x370/0x3a0
[ 426.184048][T14695] device_add+0x408/0xb90
[ 426.184075][T14695] hci_conn_add_sysfs+0xd5/0x210
[ 426.184103][T14695] le_conn_complete_evt+0x10e6/0x16b0
[ 426.184139][T14695] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.184162][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.184188][T14695] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.184215][T14695] ? skb_pull_data+0xfb/0x200
[ 426.184239][T14695] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.184262][T14695] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.184288][T14695] hci_event_packet+0x659/0xef0
[ 426.184319][T14695] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.184339][T14695] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.184359][T14695] ? __pfx_hci_event_packet+0x10/0x10
[ 426.184383][T14695] ? rt_spin_unlock+0x14f/0x200
[ 426.184413][T14695] ? hci_send_to_monitor+0xe2/0x590
[ 426.184438][T14695] hci_rx_work+0x3ee/0x1040
[ 426.184474][T14695] ? process_one_work+0x8be/0x1630
[ 426.184494][T14695] process_one_work+0x98b/0x1630
[ 426.184536][T14695] ? __pfx_process_one_work+0x10/0x10
[ 426.184556][T14695] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.184597][T14695] worker_thread+0xb49/0x1140
[ 426.184629][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.184668][T14695] kthread+0x388/0x470
[ 426.184687][T14695] ? __pfx_worker_thread+0x10/0x10
[ 426.184713][T14695] ? __pfx_kthread+0x10/0x10
[ 426.184732][T14695] ret_from_fork+0x514/0xb70
[ 426.184757][T14695] ? __pfx_ret_from_fork+0x10/0x10
[ 426.184777][T14695] ? __switch_to+0xc79/0x1410
[ 426.184805][T14695] ? __pfx_kthread+0x10/0x10
[ 426.184825][T14695] ret_from_fork_asm+0x1a/0x30
[ 426.184863][T14695]
[ 426.184910][T14695] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.184943][T14695] Bluetooth: hci4: failed to register connection device
[ 426.369396][T14695] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 426.369421][T14695] CPU: 1 UID: 0 PID: 14695 Comm: kworker/u9:9 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.369444][T14695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.369456][T14695] Workqueue: hci2 hci_rx_work
[ 426.369484][T14695] Call Trace:
[ 426.369492][T14695]
[ 426.369501][T14695] dump_stack_lvl+0xe8/0x150
[ 426.369527][T14695] sysfs_create_dir_ns+0x271/0x2a0
[ 426.369549][T14695] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.369575][T14695] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.369599][T14695] ? rt_spin_unlock+0x160/0x200
[ 426.369624][T14695] kobject_add_internal+0x631/0xd10
[ 426.369654][T14695] kobject_add+0x163/0x240
[ 426.369680][T14695] ? __pfx_kobject_add+0x10/0x10
[ 426.369709][T14695] ? get_device_parent+0x370/0x3a0
[ 426.369737][T14695] device_add+0x408/0xb90
[ 426.369765][T14695] hci_conn_add_sysfs+0xd5/0x210
[ 426.369793][T14695] le_conn_complete_evt+0x10e6/0x16b0
[ 426.369825][T14695] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.369847][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.369873][T14695] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.369901][T14695] ? skb_pull_data+0xfb/0x200
[ 426.369923][T14695] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.369946][T14695] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.369973][T14695] hci_event_packet+0x659/0xef0
[ 426.370004][T14695] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.370024][T14695] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.370043][T14695] ? __pfx_hci_event_packet+0x10/0x10
[ 426.370067][T14695] ? rt_spin_unlock+0x14f/0x200
[ 426.370098][T14695] ? hci_send_to_monitor+0xe2/0x590
[ 426.370123][T14695] hci_rx_work+0x3ee/0x1040
[ 426.370158][T14695] ? process_one_work+0x8be/0x1630
[ 426.370186][T14695] process_one_work+0x98b/0x1630
[ 426.370229][T14695] ? __pfx_process_one_work+0x10/0x10
[ 426.370249][T14695] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.370289][T14695] worker_thread+0xb49/0x1140
[ 426.370321][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.370364][T14695] kthread+0x388/0x470
[ 426.370382][T14695] ? __pfx_worker_thread+0x10/0x10
[ 426.370403][T14695] ? __pfx_kthread+0x10/0x10
[ 426.370424][T14695] ret_from_fork+0x514/0xb70
[ 426.370448][T14695] ? __pfx_ret_from_fork+0x10/0x10
[ 426.370469][T14695] ? __switch_to+0xc79/0x1410
[ 426.370497][T14695] ? __pfx_kthread+0x10/0x10
[ 426.370517][T14695] ret_from_fork_asm+0x1a/0x30
[ 426.370556][T14695]
[ 426.370602][T14695] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.370636][T14695] Bluetooth: hci2: failed to register connection device
[ 426.375252][ T6341] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 426.375276][ T6341] CPU: 1 UID: 0 PID: 6341 Comm: kworker/u9:3 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.375298][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.375313][ T6341] Workqueue: hci5 hci_rx_work
[ 426.375341][ T6341] Call Trace:
[ 426.375349][ T6341]
[ 426.375358][ T6341] dump_stack_lvl+0xe8/0x150
[ 426.375384][ T6341] sysfs_create_dir_ns+0x271/0x2a0
[ 426.375407][ T6341] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.375432][ T6341] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.375457][ T6341] ? rt_spin_unlock+0x160/0x200
[ 426.375482][ T6341] kobject_add_internal+0x631/0xd10
[ 426.375512][ T6341] kobject_add+0x163/0x240
[ 426.375538][ T6341] ? __pfx_kobject_add+0x10/0x10
[ 426.375566][ T6341] ? get_device_parent+0x370/0x3a0
[ 426.375594][ T6341] device_add+0x408/0xb90
[ 426.375622][ T6341] hci_conn_add_sysfs+0xd5/0x210
[ 426.375651][ T6341] le_conn_complete_evt+0x10e6/0x16b0
[ 426.375681][ T6341] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.375704][ T6341] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.375730][ T6341] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.375758][ T6341] ? skb_pull_data+0xfb/0x200
[ 426.375780][ T6341] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.375803][ T6341] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.375830][ T6341] hci_event_packet+0x659/0xef0
[ 426.375861][ T6341] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.375881][ T6341] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.375900][ T6341] ? __pfx_hci_event_packet+0x10/0x10
[ 426.375923][ T6341] ? rt_spin_unlock+0x14f/0x200
[ 426.375954][ T6341] ? hci_send_to_monitor+0xe2/0x590
[ 426.375979][ T6341] hci_rx_work+0x3ee/0x1040
[ 426.376014][ T6341] ? process_one_work+0x8be/0x1630
[ 426.376036][ T6341] process_one_work+0x98b/0x1630
[ 426.376079][ T6341] ? __pfx_process_one_work+0x10/0x10
[ 426.376099][ T6341] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.376139][ T6341] worker_thread+0xb49/0x1140
[ 426.376194][ T6341] kthread+0x388/0x470
[ 426.376214][ T6341] ? __pfx_worker_thread+0x10/0x10
[ 426.376236][ T6341] ? __pfx_kthread+0x10/0x10
[ 426.376256][ T6341] ret_from_fork+0x514/0xb70
[ 426.376280][ T6341] ? __pfx_ret_from_fork+0x10/0x10
[ 426.376300][ T6341] ? __switch_to+0xc79/0x1410
[ 426.376329][ T6341] ? __pfx_kthread+0x10/0x10
[ 426.376349][ T6341] ret_from_fork_asm+0x1a/0x30
[ 426.376388][ T6341]
[ 426.378038][ T6341] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.378081][ T6341] Bluetooth: hci5: failed to register connection device
[ 426.378822][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 426.378842][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.378872][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.378890][ T9844] Workqueue: hci4 hci_rx_work
[ 426.378919][ T9844] Call Trace:
[ 426.378930][ T9844]
[ 426.378942][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.378980][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.379002][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.379027][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.379053][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.379077][ T9844] kobject_add_internal+0x631/0xd10
[ 426.379107][ T9844] kobject_add+0x163/0x240
[ 426.379133][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.379161][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.379197][ T9844] device_add+0x408/0xb90
[ 426.379225][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.379254][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.379284][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.379307][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.379333][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.379360][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.379384][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.379407][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.379433][ T9844] hci_event_packet+0x659/0xef0
[ 426.379468][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.379489][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.379507][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.379532][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.379562][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.379587][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.379622][ T9844] ? process_one_work+0x8be/0x1630
[ 426.379644][ T9844] process_one_work+0x98b/0x1630
[ 426.379687][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.379707][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.379747][ T9844] worker_thread+0xb49/0x1140
[ 426.379779][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.379818][ T9844] kthread+0x388/0x470
[ 426.379838][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.379859][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.379879][ T9844] ret_from_fork+0x514/0xb70
[ 426.379903][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.379923][ T9844] ? __switch_to+0xc79/0x1410
[ 426.379952][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.379971][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.380010][ T9844]
[ 426.380060][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.380093][ T9844] Bluetooth: hci4: failed to register connection device
[ 426.555156][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 426.555184][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.555205][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.555218][ T9844] Workqueue: hci4 hci_rx_work
[ 426.555249][ T9844] Call Trace:
[ 426.555257][ T9844]
[ 426.555266][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.555293][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.555319][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.555341][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.555364][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.555386][ T9844] kobject_add_internal+0x631/0xd10
[ 426.555416][ T9844] kobject_add+0x163/0x240
[ 426.555442][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.555470][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.555499][ T9844] device_add+0x408/0xb90
[ 426.555526][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.555554][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.555585][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.555607][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.555632][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.555660][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.555683][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.555706][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.555732][ T9844] hci_event_packet+0x659/0xef0
[ 426.555764][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.555784][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.555803][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.555827][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.555864][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.555890][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.555924][ T9844] ? process_one_work+0x8be/0x1630
[ 426.555947][ T9844] process_one_work+0x98b/0x1630
[ 426.555990][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.556010][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.556050][ T9844] worker_thread+0xb49/0x1140
[ 426.556082][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.556121][ T9844] kthread+0x388/0x470
[ 426.556140][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.556161][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.556181][ T9844] ret_from_fork+0x514/0xb70
[ 426.556206][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.556226][ T9844] ? __switch_to+0xc79/0x1410
[ 426.556254][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.556275][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.556313][ T9844]
[ 426.556580][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.556619][ T9844] Bluetooth: hci4: failed to register connection device
[ 426.557502][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 426.557521][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.557542][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.557554][ T9844] Workqueue: hci2 hci_rx_work
[ 426.557584][ T9844] Call Trace:
[ 426.557591][ T9844]
[ 426.557600][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.557625][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.557647][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.557671][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.557697][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.557721][ T9844] kobject_add_internal+0x631/0xd10
[ 426.557751][ T9844] kobject_add+0x163/0x240
[ 426.557778][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.557811][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.557847][ T9844] device_add+0x408/0xb90
[ 426.557874][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.557903][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.557937][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.557959][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.557984][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.558012][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.558036][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.558059][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.558084][ T9844] hci_event_packet+0x659/0xef0
[ 426.558116][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.558136][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.558155][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.558179][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.558210][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.558235][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.558270][ T9844] ? process_one_work+0x8be/0x1630
[ 426.558292][ T9844] process_one_work+0x98b/0x1630
[ 426.558334][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.558353][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.558392][ T9844] worker_thread+0xb49/0x1140
[ 426.558424][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.558468][ T9844] kthread+0x388/0x470
[ 426.558487][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.558508][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.558528][ T9844] ret_from_fork+0x514/0xb70
[ 426.558552][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.558572][ T9844] ? __switch_to+0xc79/0x1410
[ 426.558600][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.558620][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.558658][ T9844]
[ 426.558751][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.558785][ T9844] Bluetooth: hci2: failed to register connection device
[ 426.573137][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 426.573162][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.573185][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.573196][ T9844] Workqueue: hci5 hci_rx_work
[ 426.573227][ T9844] Call Trace:
[ 426.573235][ T9844]
[ 426.573244][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.573270][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.573293][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.573318][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.573343][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.573367][ T9844] kobject_add_internal+0x631/0xd10
[ 426.573397][ T9844] kobject_add+0x163/0x240
[ 426.573423][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.573451][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.573478][ T9844] device_add+0x408/0xb90
[ 426.573506][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.573535][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.573565][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.573587][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.573613][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.573641][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.573664][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.573687][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.573713][ T9844] hci_event_packet+0x659/0xef0
[ 426.573745][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.573765][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.573784][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.573808][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.573849][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.573874][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.573910][ T9844] ? process_one_work+0x8be/0x1630
[ 426.573932][ T9844] process_one_work+0x98b/0x1630
[ 426.573974][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.573998][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.574039][ T9844] worker_thread+0xb49/0x1140
[ 426.574071][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.574108][ T9844] kthread+0x388/0x470
[ 426.574128][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.574150][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.574170][ T9844] ret_from_fork+0x514/0xb70
[ 426.574193][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.574214][ T9844] ? __switch_to+0xc79/0x1410
[ 426.574243][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.574263][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.574301][ T9844]
[ 426.574354][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.574387][ T9844] Bluetooth: hci5: failed to register connection device
[ 426.745475][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 426.745501][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.745523][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.745536][ T9844] Workqueue: hci2 hci_rx_work
[ 426.745565][ T9844] Call Trace:
[ 426.745573][ T9844]
[ 426.745582][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.745607][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.745629][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.745654][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.745680][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.745704][ T9844] kobject_add_internal+0x631/0xd10
[ 426.745734][ T9844] kobject_add+0x163/0x240
[ 426.745760][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.745788][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.745823][ T9844] device_add+0x408/0xb90
[ 426.745851][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.745880][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.745911][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.745933][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.745958][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.745987][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.746009][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.746033][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.746058][ T9844] hci_event_packet+0x659/0xef0
[ 426.746091][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.746110][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.746129][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.746153][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.746183][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.746208][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.746243][ T9844] ? process_one_work+0x8be/0x1630
[ 426.746265][ T9844] process_one_work+0x98b/0x1630
[ 426.746308][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.746328][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.746368][ T9844] worker_thread+0xb49/0x1140
[ 426.746404][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.746443][ T9844] kthread+0x388/0x470
[ 426.746462][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.746484][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.746504][ T9844] ret_from_fork+0x514/0xb70
[ 426.746527][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.746549][ T9844] ? __switch_to+0xc79/0x1410
[ 426.746577][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.746597][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.746635][ T9844]
[ 426.746682][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.746717][ T9844] Bluetooth: hci2: failed to register connection device
[ 426.920650][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 426.920674][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.920697][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.920710][ T9844] Workqueue: hci2 hci_rx_work
[ 426.920741][ T9844] Call Trace:
[ 426.920749][ T9844]
[ 426.920757][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.920782][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.920813][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.920838][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.920863][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.920887][ T9844] kobject_add_internal+0x631/0xd10
[ 426.920915][ T9844] kobject_add+0x163/0x240
[ 426.920941][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.920968][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.920997][ T9844] device_add+0x408/0xb90
[ 426.921024][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.921052][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.921084][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.921106][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.921131][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.921159][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.921182][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.921205][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.921230][ T9844] hci_event_packet+0x659/0xef0
[ 426.921262][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.921282][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.921306][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.921329][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.921360][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.921385][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.921420][ T9844] ? process_one_work+0x8be/0x1630
[ 426.921442][ T9844] process_one_work+0x98b/0x1630
[ 426.921485][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.921505][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.921546][ T9844] worker_thread+0xb49/0x1140
[ 426.921578][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.921617][ T9844] kthread+0x388/0x470
[ 426.921636][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.921661][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.921681][ T9844] ret_from_fork+0x514/0xb70
[ 426.921703][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.921725][ T9844] ? __switch_to+0xc79/0x1410
[ 426.921754][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.921774][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.921816][ T9844]
[ 426.921865][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.921898][ T9844] Bluetooth: hci2: failed to register connection device
[ 426.935623][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 426.935648][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.935670][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.935682][ T9844] Workqueue: hci5 hci_rx_work
[ 426.935714][ T9844] Call Trace:
[ 426.935723][ T9844]
[ 426.935731][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.935756][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.935779][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.935812][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.935837][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.935861][ T9844] kobject_add_internal+0x631/0xd10
[ 426.935891][ T9844] kobject_add+0x163/0x240
[ 426.935918][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.935946][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.935974][ T9844] device_add+0x408/0xb90
[ 426.936002][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.936030][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.936062][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.936084][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.936110][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.936138][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.936160][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.936183][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.936208][ T9844] hci_event_packet+0x659/0xef0
[ 426.936239][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.936260][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.936278][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.936303][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.936333][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.936357][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.936392][ T9844] ? process_one_work+0x8be/0x1630
[ 426.936414][ T9844] process_one_work+0x98b/0x1630
[ 426.936456][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.936481][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.936522][ T9844] worker_thread+0xb49/0x1140
[ 426.936554][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.936593][ T9844] kthread+0x388/0x470
[ 426.936612][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.936633][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.936653][ T9844] ret_from_fork+0x514/0xb70
[ 426.936677][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.936697][ T9844] ? __switch_to+0xc79/0x1410
[ 426.936726][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.936746][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.936783][ T9844]
[ 426.936834][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.936869][ T9844] Bluetooth: hci5: failed to register connection device
[ 426.955007][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 426.955032][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 426.955053][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 426.955066][ T9844] Workqueue: hci4 hci_rx_work
[ 426.955097][ T9844] Call Trace:
[ 426.955104][ T9844]
[ 426.955113][ T9844] dump_stack_lvl+0xe8/0x150
[ 426.955140][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 426.955162][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.955187][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 426.955212][ T9844] ? rt_spin_unlock+0x160/0x200
[ 426.955236][ T9844] kobject_add_internal+0x631/0xd10
[ 426.955267][ T9844] kobject_add+0x163/0x240
[ 426.955293][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 426.955324][ T9844] ? get_device_parent+0x370/0x3a0
[ 426.955350][ T9844] device_add+0x408/0xb90
[ 426.955376][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 426.955404][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 426.955436][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 426.955458][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.955483][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 426.955510][ T9844] ? skb_pull_data+0xfb/0x200
[ 426.955534][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 426.955557][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 426.955580][ T9844] hci_event_packet+0x659/0xef0
[ 426.955613][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 426.955633][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 426.955652][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 426.955676][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 426.955706][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 426.955731][ T9844] hci_rx_work+0x3ee/0x1040
[ 426.955766][ T9844] ? process_one_work+0x8be/0x1630
[ 426.955788][ T9844] process_one_work+0x98b/0x1630
[ 426.955838][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 426.955858][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 426.955898][ T9844] worker_thread+0xb49/0x1140
[ 426.955930][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 426.955969][ T9844] kthread+0x388/0x470
[ 426.955988][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 426.956010][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.956030][ T9844] ret_from_fork+0x514/0xb70
[ 426.956054][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 426.956075][ T9844] ? __switch_to+0xc79/0x1410
[ 426.956104][ T9844] ? __pfx_kthread+0x10/0x10
[ 426.956124][ T9844] ret_from_fork_asm+0x1a/0x30
[ 426.956163][ T9844]
[ 426.956390][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 426.956426][ T9844] Bluetooth: hci4: failed to register connection device
[ 427.171624][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 427.171650][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.171673][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.171685][ T9844] Workqueue: hci5 hci_rx_work
[ 427.171716][ T9844] Call Trace:
[ 427.171723][ T9844]
[ 427.171733][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.171759][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.171780][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.171805][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.171830][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.171855][ T9844] kobject_add_internal+0x631/0xd10
[ 427.171885][ T9844] kobject_add+0x163/0x240
[ 427.171911][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.171937][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.171965][ T9844] device_add+0x408/0xb90
[ 427.171993][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.172030][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.172062][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.172084][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.172110][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.172138][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.172160][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.172184][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.172209][ T9844] hci_event_packet+0x659/0xef0
[ 427.172240][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.172260][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.172280][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.172303][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.172334][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.172360][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.172395][ T9844] ? process_one_work+0x8be/0x1630
[ 427.172417][ T9844] process_one_work+0x98b/0x1630
[ 427.172460][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.172480][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.172520][ T9844] worker_thread+0xb49/0x1140
[ 427.172557][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.172597][ T9844] kthread+0x388/0x470
[ 427.172615][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.172637][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.172657][ T9844] ret_from_fork+0x514/0xb70
[ 427.172682][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.172702][ T9844] ? __switch_to+0xc79/0x1410
[ 427.172731][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.172750][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.172788][ T9844]
[ 427.172912][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.172952][ T9844] Bluetooth: hci5: failed to register connection device
[ 427.184098][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 427.184137][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.184159][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.184172][ T9844] Workqueue: hci2 hci_rx_work
[ 427.184202][ T9844] Call Trace:
[ 427.184210][ T9844]
[ 427.184219][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.184245][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.184267][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.184291][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.184316][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.184341][ T9844] kobject_add_internal+0x631/0xd10
[ 427.184371][ T9844] kobject_add+0x163/0x240
[ 427.184397][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.184425][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.184453][ T9844] device_add+0x408/0xb90
[ 427.184480][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.184509][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.184540][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.184562][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.184588][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.184615][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.184636][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.184652][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.184667][ T9844] hci_event_packet+0x659/0xef0
[ 427.184691][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.184710][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.184729][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.184753][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.184783][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.184808][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.184843][ T9844] ? process_one_work+0x8be/0x1630
[ 427.184882][ T9844] process_one_work+0x98b/0x1630
[ 427.184943][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.184962][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.185003][ T9844] worker_thread+0xb49/0x1140
[ 427.185042][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.185081][ T9844] kthread+0x388/0x470
[ 427.185101][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.185122][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.185142][ T9844] ret_from_fork+0x514/0xb70
[ 427.185166][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.185186][ T9844] ? __switch_to+0xc79/0x1410
[ 427.185215][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.185234][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.185271][ T9844]
[ 427.185299][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.185696][ T9844] Bluetooth: hci2: failed to register connection device
[ 427.205533][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 427.205558][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.205579][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.205591][ T9844] Workqueue: hci4 hci_rx_work
[ 427.205623][ T9844] Call Trace:
[ 427.205630][ T9844]
[ 427.205639][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.205664][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.205686][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.205712][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.205735][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.205760][ T9844] kobject_add_internal+0x631/0xd10
[ 427.205789][ T9844] kobject_add+0x163/0x240
[ 427.205815][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.205844][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.205880][ T9844] device_add+0x408/0xb90
[ 427.205908][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.205937][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.205969][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.205997][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.206023][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.206051][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.206074][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.206097][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.206122][ T9844] hci_event_packet+0x659/0xef0
[ 427.206154][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.206174][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.206194][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.206218][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.206248][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.206273][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.206308][ T9844] ? process_one_work+0x8be/0x1630
[ 427.206330][ T9844] process_one_work+0x98b/0x1630
[ 427.206373][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.206393][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.206434][ T9844] worker_thread+0xb49/0x1140
[ 427.206467][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.206505][ T9844] kthread+0x388/0x470
[ 427.206524][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.206546][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.206566][ T9844] ret_from_fork+0x514/0xb70
[ 427.206589][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.206610][ T9844] ? __switch_to+0xc79/0x1410
[ 427.206639][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.206659][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.206702][ T9844]
[ 427.206729][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.206764][ T9844] Bluetooth: hci4: failed to register connection device
[ 427.344715][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 427.344741][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.344763][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.344775][ T9844] Workqueue: hci5 hci_rx_work
[ 427.344806][ T9844] Call Trace:
[ 427.344814][ T9844]
[ 427.344822][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.344848][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.344871][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.344896][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.344921][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.344945][ T9844] kobject_add_internal+0x631/0xd10
[ 427.344975][ T9844] kobject_add+0x163/0x240
[ 427.345002][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.345029][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.345064][ T9844] device_add+0x408/0xb90
[ 427.345092][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.345120][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.345151][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.345173][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.345199][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.345227][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.345250][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.345274][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.345299][ T9844] hci_event_packet+0x659/0xef0
[ 427.345332][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.345351][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.345369][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.345392][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.345422][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.345447][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.345483][ T9844] ? process_one_work+0x8be/0x1630
[ 427.345504][ T9844] process_one_work+0x98b/0x1630
[ 427.345547][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.345567][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.345607][ T9844] worker_thread+0xb49/0x1140
[ 427.345640][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.345679][ T9844] kthread+0x388/0x470
[ 427.345697][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.345719][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.345739][ T9844] ret_from_fork+0x514/0xb70
[ 427.345763][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.345783][ T9844] ? __switch_to+0xc79/0x1410
[ 427.345811][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.345827][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.345866][ T9844]
[ 427.346026][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.346078][ T9844] Bluetooth: hci5: failed to register connection device
[ 427.378897][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 427.378923][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.378945][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.378957][ T9844] Workqueue: hci2 hci_rx_work
[ 427.378990][ T9844] Call Trace:
[ 427.378997][ T9844]
[ 427.379006][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.379032][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.379062][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.379087][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.379112][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.379137][ T9844] kobject_add_internal+0x631/0xd10
[ 427.379167][ T9844] kobject_add+0x163/0x240
[ 427.379193][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.379221][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.379249][ T9844] device_add+0x408/0xb90
[ 427.379277][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.379305][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.379336][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.379358][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.379384][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.379412][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.379434][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.379458][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.379483][ T9844] hci_event_packet+0x659/0xef0
[ 427.379515][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.379535][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.379555][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.379579][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.379610][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.379635][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.379669][ T9844] ? process_one_work+0x8be/0x1630
[ 427.379689][ T9844] process_one_work+0x98b/0x1630
[ 427.379730][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.379750][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.379789][ T9844] worker_thread+0xb49/0x1140
[ 427.379822][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.379863][ T9844] kthread+0x388/0x470
[ 427.379882][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.379903][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.379924][ T9844] ret_from_fork+0x514/0xb70
[ 427.379948][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.379969][ T9844] ? __switch_to+0xc79/0x1410
[ 427.379998][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.380018][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.380064][ T9844]
[ 427.380111][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.380148][ T9844] Bluetooth: hci2: failed to register connection device
[ 427.395296][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 427.395469][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.395492][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.395504][ T9844] Workqueue: hci4 hci_rx_work
[ 427.395536][ T9844] Call Trace:
[ 427.395545][ T9844]
[ 427.395554][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.395581][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.395603][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.395628][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.395653][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.395677][ T9844] kobject_add_internal+0x631/0xd10
[ 427.395707][ T9844] kobject_add+0x163/0x240
[ 427.395733][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.395762][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.395790][ T9844] device_add+0x408/0xb90
[ 427.395816][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.395845][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.395875][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.395895][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.395920][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.395947][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.395970][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.395994][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.396019][ T9844] hci_event_packet+0x659/0xef0
[ 427.396056][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.396077][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.396097][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.396121][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.396151][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.396176][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.396211][ T9844] ? process_one_work+0x8be/0x1630
[ 427.396234][ T9844] process_one_work+0x98b/0x1630
[ 427.396280][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.396300][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.396341][ T9844] worker_thread+0xb49/0x1140
[ 427.396373][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.396412][ T9844] kthread+0x388/0x470
[ 427.396431][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.396452][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.396472][ T9844] ret_from_fork+0x514/0xb70
[ 427.396496][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.396516][ T9844] ? __switch_to+0xc79/0x1410
[ 427.396545][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.396565][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.396603][ T9844]
[ 427.396650][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.396686][ T9844] Bluetooth: hci4: failed to register connection device
[ 427.493001][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 427.493027][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.493048][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.493061][ T9844] Workqueue: hci5 hci_rx_work
[ 427.493092][ T9844] Call Trace:
[ 427.493100][ T9844]
[ 427.493108][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.493138][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.493161][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.493186][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.493212][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.493236][ T9844] kobject_add_internal+0x631/0xd10
[ 427.493265][ T9844] kobject_add+0x163/0x240
[ 427.493291][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.493320][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.493348][ T9844] device_add+0x408/0xb90
[ 427.493374][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.493403][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.493434][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.493456][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.493481][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.493509][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.493532][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.493555][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.493580][ T9844] hci_event_packet+0x659/0xef0
[ 427.493611][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.493632][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.493650][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.493675][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.493704][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.493736][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.493772][ T9844] ? process_one_work+0x8be/0x1630
[ 427.493794][ T9844] process_one_work+0x98b/0x1630
[ 427.493838][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.493858][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.493898][ T9844] worker_thread+0xb49/0x1140
[ 427.493930][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.493969][ T9844] kthread+0x388/0x470
[ 427.493988][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.494009][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.494029][ T9844] ret_from_fork+0x514/0xb70
[ 427.494053][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.494073][ T9844] ? __switch_to+0xc79/0x1410
[ 427.494102][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.494122][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.494159][ T9844]
[ 427.494206][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.494241][ T9844] Bluetooth: hci5: failed to register connection device
[ 427.543036][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 427.543060][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.543082][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.543095][ T9844] Workqueue: hci4 hci_rx_work
[ 427.543127][ T9844] Call Trace:
[ 427.543135][ T9844]
[ 427.543143][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.543172][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.543195][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.543219][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.543244][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.543268][ T9844] kobject_add_internal+0x631/0xd10
[ 427.543299][ T9844] kobject_add+0x163/0x240
[ 427.543325][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.543353][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.543382][ T9844] device_add+0x408/0xb90
[ 427.543409][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.543438][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.543468][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.543490][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.543515][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.543543][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.543566][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.543588][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.543614][ T9844] hci_event_packet+0x659/0xef0
[ 427.543646][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.543666][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.543696][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.543727][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.543757][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.543782][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.543816][ T9844] ? process_one_work+0x8be/0x1630
[ 427.543838][ T9844] process_one_work+0x98b/0x1630
[ 427.543880][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.543901][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.543940][ T9844] worker_thread+0xb49/0x1140
[ 427.543972][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.544011][ T9844] kthread+0x388/0x470
[ 427.544030][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.544051][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.544071][ T9844] ret_from_fork+0x514/0xb70
[ 427.544095][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.544115][ T9844] ? __switch_to+0xc79/0x1410
[ 427.544143][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.544162][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.544201][ T9844]
[ 427.544312][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.544348][ T9844] Bluetooth: hci4: failed to register connection device
[ 427.547064][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 427.547089][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.547110][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.547122][ T9844] Workqueue: hci2 hci_rx_work
[ 427.547153][ T9844] Call Trace:
[ 427.547161][ T9844]
[ 427.547170][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.547195][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.547218][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.547243][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.547268][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.547292][ T9844] kobject_add_internal+0x631/0xd10
[ 427.547319][ T9844] kobject_add+0x163/0x240
[ 427.547344][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.547372][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.547400][ T9844] device_add+0x408/0xb90
[ 427.547428][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.547456][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.547488][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.547508][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.547538][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.547566][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.547588][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.547612][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.547638][ T9844] hci_event_packet+0x659/0xef0
[ 427.547670][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.547690][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.547716][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.547741][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.547772][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.547796][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.547831][ T9844] ? process_one_work+0x8be/0x1630
[ 427.547854][ T9844] process_one_work+0x98b/0x1630
[ 427.547896][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.547916][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.547957][ T9844] worker_thread+0xb49/0x1140
[ 427.547988][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.548028][ T9844] kthread+0x388/0x470
[ 427.548047][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.548069][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.548089][ T9844] ret_from_fork+0x514/0xb70
[ 427.548113][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.548134][ T9844] ? __switch_to+0xc79/0x1410
[ 427.548163][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.548182][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.548221][ T9844]
[ 427.548273][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.548308][ T9844] Bluetooth: hci2: failed to register connection device
[ 427.575603][ T9844] Bluetooth: hci4: command 0x2016 tx timeout
[ 427.652587][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 427.652610][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.652632][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.652644][ T9844] Workqueue: hci5 hci_rx_work
[ 427.652675][ T9844] Call Trace:
[ 427.652683][ T9844]
[ 427.652692][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.652727][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.652750][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.652775][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.652804][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.652829][ T9844] kobject_add_internal+0x631/0xd10
[ 427.652859][ T9844] kobject_add+0x163/0x240
[ 427.652885][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.652913][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.652942][ T9844] device_add+0x408/0xb90
[ 427.652969][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.652997][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.653029][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.653051][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.653077][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.653104][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.653128][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.653151][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.653177][ T9844] hci_event_packet+0x659/0xef0
[ 427.653208][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.653228][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.653247][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.653272][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.653302][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.653328][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.653363][ T9844] ? process_one_work+0x8be/0x1630
[ 427.653385][ T9844] process_one_work+0x98b/0x1630
[ 427.653428][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.653448][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.653488][ T9844] worker_thread+0xb49/0x1140
[ 427.653521][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.653560][ T9844] kthread+0x388/0x470
[ 427.653579][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.653601][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.653620][ T9844] ret_from_fork+0x514/0xb70
[ 427.653645][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.653665][ T9844] ? __switch_to+0xc79/0x1410
[ 427.653694][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.653720][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.653763][ T9844]
[ 427.653856][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.653890][ T9844] Bluetooth: hci5: failed to register connection device
[ 427.680226][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 427.680251][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.680272][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.680284][ T9844] Workqueue: hci2 hci_rx_work
[ 427.680316][ T9844] Call Trace:
[ 427.680323][ T9844]
[ 427.680336][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.680362][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.680384][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.680409][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.680434][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.680458][ T9844] kobject_add_internal+0x631/0xd10
[ 427.680489][ T9844] kobject_add+0x163/0x240
[ 427.680515][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.680543][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.680571][ T9844] device_add+0x408/0xb90
[ 427.680598][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.680627][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.680658][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.680680][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.680713][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.680740][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.680764][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.680788][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.680813][ T9844] hci_event_packet+0x659/0xef0
[ 427.680845][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.680864][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.680884][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.680908][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.680938][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.680963][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.680998][ T9844] ? process_one_work+0x8be/0x1630
[ 427.681019][ T9844] process_one_work+0x98b/0x1630
[ 427.681062][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.681082][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.681123][ T9844] worker_thread+0xb49/0x1140
[ 427.681155][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.681194][ T9844] kthread+0x388/0x470
[ 427.681213][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.681234][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.681254][ T9844] ret_from_fork+0x514/0xb70
[ 427.681278][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.681299][ T9844] ? __switch_to+0xc79/0x1410
[ 427.681331][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.681351][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.681389][ T9844]
[ 427.681496][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.681532][ T9844] Bluetooth: hci2: failed to register connection device
[ 427.686786][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 427.686811][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.686834][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.686846][ T9844] Workqueue: hci4 hci_rx_work
[ 427.686877][ T9844] Call Trace:
[ 427.686884][ T9844]
[ 427.686893][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.686921][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.686943][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.686968][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.686993][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.687017][ T9844] kobject_add_internal+0x631/0xd10
[ 427.687048][ T9844] kobject_add+0x163/0x240
[ 427.687073][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.687101][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.687130][ T9844] device_add+0x408/0xb90
[ 427.687158][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.687186][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.687217][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.687239][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.687264][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.687291][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.687315][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.687338][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.687364][ T9844] hci_event_packet+0x659/0xef0
[ 427.687395][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.687415][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.687434][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.687458][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.687487][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.687512][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.687547][ T9844] ? process_one_work+0x8be/0x1630
[ 427.687569][ T9844] process_one_work+0x98b/0x1630
[ 427.687611][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.687632][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.687672][ T9844] worker_thread+0xb49/0x1140
[ 427.687710][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.687749][ T9844] kthread+0x388/0x470
[ 427.687768][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.687793][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.687813][ T9844] ret_from_fork+0x514/0xb70
[ 427.687837][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.687858][ T9844] ? __switch_to+0xc79/0x1410
[ 427.687885][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.687905][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.687943][ T9844]
[ 427.687991][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.688026][ T9844] Bluetooth: hci4: failed to register connection device
[ 427.798321][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 427.798347][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.798369][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.798384][ T9844] Workqueue: hci5 hci_rx_work
[ 427.798414][ T9844] Call Trace:
[ 427.798421][ T9844]
[ 427.798430][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.798456][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.798478][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.798503][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.798529][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.798554][ T9844] kobject_add_internal+0x631/0xd10
[ 427.798584][ T9844] kobject_add+0x163/0x240
[ 427.798610][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.798638][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.798667][ T9844] device_add+0x408/0xb90
[ 427.798693][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.798723][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.798754][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.798775][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.798801][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.798829][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.798852][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.798875][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.798901][ T9844] hci_event_packet+0x659/0xef0
[ 427.798932][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.798953][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.798979][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.799004][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.799034][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.799060][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.799094][ T9844] ? process_one_work+0x8be/0x1630
[ 427.799116][ T9844] process_one_work+0x98b/0x1630
[ 427.799157][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.799177][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.799215][ T9844] worker_thread+0xb49/0x1140
[ 427.799247][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.799286][ T9844] kthread+0x388/0x470
[ 427.799305][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.799326][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.799346][ T9844] ret_from_fork+0x514/0xb70
[ 427.799370][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.799390][ T9844] ? __switch_to+0xc79/0x1410
[ 427.799420][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.799439][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.799478][ T9844]
[ 427.799538][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.799574][ T9844] Bluetooth: hci5: failed to register connection device
[ 427.836642][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 427.836668][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.836690][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.836702][ T9844] Workqueue: hci4 hci_rx_work
[ 427.836733][ T9844] Call Trace:
[ 427.836740][ T9844]
[ 427.836749][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.836776][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.836798][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.836826][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.836850][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.836874][ T9844] kobject_add_internal+0x631/0xd10
[ 427.836904][ T9844] kobject_add+0x163/0x240
[ 427.836930][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.836965][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.836995][ T9844] device_add+0x408/0xb90
[ 427.837022][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.837051][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.837082][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.837105][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.837131][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.837158][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.837181][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.837205][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.837231][ T9844] hci_event_packet+0x659/0xef0
[ 427.837261][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.837282][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.837301][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.837326][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.837356][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.837381][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.837416][ T9844] ? process_one_work+0x8be/0x1630
[ 427.837438][ T9844] process_one_work+0x98b/0x1630
[ 427.837481][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.837501][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.837541][ T9844] worker_thread+0xb49/0x1140
[ 427.837573][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.837613][ T9844] kthread+0x388/0x470
[ 427.837632][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.837653][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.837673][ T9844] ret_from_fork+0x514/0xb70
[ 427.837697][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.837717][ T9844] ? __switch_to+0xc79/0x1410
[ 427.837744][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.837762][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.837800][ T9844]
[ 427.837897][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.837933][ T9844] Bluetooth: hci4: failed to register connection device
[ 427.853055][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 427.853080][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.853102][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.853114][ T9844] Workqueue: hci2 hci_rx_work
[ 427.853143][ T9844] Call Trace:
[ 427.853151][ T9844]
[ 427.853160][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.853186][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.853209][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.853233][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.853258][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.853283][ T9844] kobject_add_internal+0x631/0xd10
[ 427.853313][ T9844] kobject_add+0x163/0x240
[ 427.853338][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.853367][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.853395][ T9844] device_add+0x408/0xb90
[ 427.853423][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.853452][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.853484][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.853505][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.853531][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.853558][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.853581][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.853605][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.853630][ T9844] hci_event_packet+0x659/0xef0
[ 427.853665][ T9844] ? __pfx____migrate_enable+0x10/0x10
[ 427.853689][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.853708][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.853728][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.853752][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.853777][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.853812][ T9844] ? process_one_work+0x8be/0x1630
[ 427.853834][ T9844] process_one_work+0x98b/0x1630
[ 427.853877][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.853897][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.853937][ T9844] worker_thread+0xb49/0x1140
[ 427.853977][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.854016][ T9844] kthread+0x388/0x470
[ 427.854035][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.854057][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.854077][ T9844] ret_from_fork+0x514/0xb70
[ 427.854101][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.854122][ T9844] ? __switch_to+0xc79/0x1410
[ 427.854151][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.854170][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.854208][ T9844]
[ 427.854255][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.854290][ T9844] Bluetooth: hci2: failed to register connection device
[ 427.898420][ T9844] Bluetooth: hci5: command 0x2016 tx timeout
[ 427.973845][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 427.973875][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.973897][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.973909][ T9844] Workqueue: hci5 hci_rx_work
[ 427.973948][ T9844] Call Trace:
[ 427.973956][ T9844]
[ 427.973965][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.973990][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.974013][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.974038][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.974063][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.974088][ T9844] kobject_add_internal+0x631/0xd10
[ 427.974116][ T9844] kobject_add+0x163/0x240
[ 427.974141][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.974169][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.974198][ T9844] device_add+0x408/0xb90
[ 427.974225][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.974253][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.974285][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.974307][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.974333][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.974360][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.974384][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.974407][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.974432][ T9844] hci_event_packet+0x659/0xef0
[ 427.974464][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.974485][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.974504][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.974528][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.974558][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.974583][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.974619][ T9844] ? process_one_work+0x8be/0x1630
[ 427.974640][ T9844] process_one_work+0x98b/0x1630
[ 427.974682][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.974702][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.974742][ T9844] worker_thread+0xb49/0x1140
[ 427.974774][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.974813][ T9844] kthread+0x388/0x470
[ 427.974832][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.974853][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.974873][ T9844] ret_from_fork+0x514/0xb70
[ 427.974897][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.974918][ T9844] ? __switch_to+0xc79/0x1410
[ 427.974952][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.974972][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.975011][ T9844]
[ 427.975057][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.975091][ T9844] Bluetooth: hci5: failed to register connection device
[ 427.991394][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 427.991419][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.991442][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.991457][ T9844] Workqueue: hci2 hci_rx_work
[ 427.991490][ T9844] Call Trace:
[ 427.991498][ T9844]
[ 427.991506][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.991533][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.991555][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.991580][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.991605][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.991630][ T9844] kobject_add_internal+0x631/0xd10
[ 427.991660][ T9844] kobject_add+0x163/0x240
[ 427.991686][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.991714][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.991743][ T9844] device_add+0x408/0xb90
[ 427.991770][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.991798][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.991830][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.991852][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.991878][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.991906][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.991928][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.991958][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.991983][ T9844] hci_event_packet+0x659/0xef0
[ 427.992014][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.992034][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.992053][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.992077][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.992108][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.992132][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.992168][ T9844] ? process_one_work+0x8be/0x1630
[ 427.992190][ T9844] process_one_work+0x98b/0x1630
[ 427.992233][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.992253][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.992293][ T9844] worker_thread+0xb49/0x1140
[ 427.992325][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.992361][ T9844] kthread+0x388/0x470
[ 427.992379][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.992400][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.992419][ T9844] ret_from_fork+0x514/0xb70
[ 427.992443][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.992464][ T9844] ? __switch_to+0xc79/0x1410
[ 427.992492][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.992512][ T9844] ret_from_fork_asm+0x1a/0x30
[ 427.992549][ T9844]
[ 427.992595][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 427.992629][ T9844] Bluetooth: hci2: failed to register connection device
[ 427.998824][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 427.998850][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 427.998871][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 427.998883][ T9844] Workqueue: hci4 hci_rx_work
[ 427.998915][ T9844] Call Trace:
[ 427.998922][ T9844]
[ 427.998930][ T9844] dump_stack_lvl+0xe8/0x150
[ 427.998968][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 427.998991][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.999016][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 427.999041][ T9844] ? rt_spin_unlock+0x160/0x200
[ 427.999065][ T9844] kobject_add_internal+0x631/0xd10
[ 427.999096][ T9844] kobject_add+0x163/0x240
[ 427.999122][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 427.999150][ T9844] ? get_device_parent+0x370/0x3a0
[ 427.999178][ T9844] device_add+0x408/0xb90
[ 427.999206][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 427.999234][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 427.999266][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 427.999288][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.999324][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 427.999353][ T9844] ? skb_pull_data+0xfb/0x200
[ 427.999378][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 427.999402][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 427.999428][ T9844] hci_event_packet+0x659/0xef0
[ 427.999461][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 427.999482][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 427.999503][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 427.999533][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 427.999565][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 427.999590][ T9844] hci_rx_work+0x3ee/0x1040
[ 427.999627][ T9844] ? process_one_work+0x8be/0x1630
[ 427.999649][ T9844] process_one_work+0x98b/0x1630
[ 427.999692][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 427.999710][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 427.999744][ T9844] worker_thread+0xb49/0x1140
[ 427.999776][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 427.999816][ T9844] kthread+0x388/0x470
[ 427.999836][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 427.999858][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.999879][ T9844] ret_from_fork+0x514/0xb70
[ 427.999903][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 427.999924][ T9844] ? __switch_to+0xc79/0x1410
[ 427.999963][ T9844] ? __pfx_kthread+0x10/0x10
[ 427.999984][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.000022][ T9844]
[ 428.000094][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.000132][ T9844] Bluetooth: hci4: failed to register connection device
[ 428.155589][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 428.155617][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.155646][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.155659][ T9844] Workqueue: hci2 hci_rx_work
[ 428.155692][ T9844] Call Trace:
[ 428.155700][ T9844]
[ 428.155708][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.155734][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.155756][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.155781][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.155806][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.155830][ T9844] kobject_add_internal+0x631/0xd10
[ 428.155860][ T9844] kobject_add+0x163/0x240
[ 428.155878][ T9844] ? trace_irq_disable+0x3b/0x140
[ 428.155908][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.155943][ T9844] device_add+0x408/0xb90
[ 428.155971][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.155999][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.156030][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.156051][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.156078][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.156106][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.156128][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.156152][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.156177][ T9844] hci_event_packet+0x659/0xef0
[ 428.156208][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.156229][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.156247][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.156271][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.156302][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.156326][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.156361][ T9844] ? process_one_work+0x8be/0x1630
[ 428.156382][ T9844] process_one_work+0x98b/0x1630
[ 428.156424][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.156444][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.156484][ T9844] worker_thread+0xb49/0x1140
[ 428.156516][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.156559][ T9844] kthread+0x388/0x470
[ 428.156578][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.156600][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.156620][ T9844] ret_from_fork+0x514/0xb70
[ 428.156651][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.156672][ T9844] ? __switch_to+0xc79/0x1410
[ 428.156700][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.156720][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.156758][ T9844]
[ 428.156808][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.156842][ T9844] Bluetooth: hci2: failed to register connection device
[ 428.164081][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 428.164107][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.164128][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.164140][ T9844] Workqueue: hci5 hci_rx_work
[ 428.164172][ T9844] Call Trace:
[ 428.164180][ T9844]
[ 428.164189][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.164218][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.164241][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.164266][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.164291][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.164315][ T9844] kobject_add_internal+0x631/0xd10
[ 428.164345][ T9844] kobject_add+0x163/0x240
[ 428.164371][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.164399][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.164427][ T9844] device_add+0x408/0xb90
[ 428.164454][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.164482][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.164513][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.164535][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.164561][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.164589][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.164612][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.164688][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.164713][ T9844] hci_event_packet+0x659/0xef0
[ 428.164745][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.164766][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.164805][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.164828][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.164859][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.164934][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.164991][ T9844] ? process_one_work+0x8be/0x1630
[ 428.165016][ T9844] process_one_work+0x98b/0x1630
[ 428.165060][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.165081][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.165121][ T9844] worker_thread+0xb49/0x1140
[ 428.165155][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.165193][ T9844] kthread+0x388/0x470
[ 428.165212][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.165234][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.165253][ T9844] ret_from_fork+0x514/0xb70
[ 428.165278][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.165299][ T9844] ? __switch_to+0xc79/0x1410
[ 428.165326][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.165344][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.165380][ T9844]
[ 428.165961][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.166004][ T9844] Bluetooth: hci5: failed to register connection device
[ 428.170847][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 428.170871][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.170893][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.170905][ T9844] Workqueue: hci4 hci_rx_work
[ 428.170937][ T9844] Call Trace:
[ 428.170945][ T9844]
[ 428.170953][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.170980][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.171002][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.171027][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.171052][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.171076][ T9844] kobject_add_internal+0x631/0xd10
[ 428.171105][ T9844] kobject_add+0x163/0x240
[ 428.171131][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.171160][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.171188][ T9844] device_add+0x408/0xb90
[ 428.171215][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.171242][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.171273][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.171295][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.171320][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.171347][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.171370][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.171393][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.171418][ T9844] hci_event_packet+0x659/0xef0
[ 428.171450][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.171470][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.171489][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.171513][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.171543][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.171568][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.171604][ T9844] ? process_one_work+0x8be/0x1630
[ 428.171625][ T9844] process_one_work+0x98b/0x1630
[ 428.171673][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.171694][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.171734][ T9844] worker_thread+0xb49/0x1140
[ 428.171766][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.171809][ T9844] kthread+0x388/0x470
[ 428.171827][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.171849][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.171869][ T9844] ret_from_fork+0x514/0xb70
[ 428.171893][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.171913][ T9844] ? __switch_to+0xc79/0x1410
[ 428.171941][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.171961][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.172000][ T9844]
[ 428.172186][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.172221][ T9844] Bluetooth: hci4: failed to register connection device
[ 428.215675][ T9844] Bluetooth: hci2: command 0x2016 tx timeout
[ 428.359734][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 428.359759][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.359781][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.359793][ T9844] Workqueue: hci5 hci_rx_work
[ 428.359825][ T9844] Call Trace:
[ 428.359833][ T9844]
[ 428.359842][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.359871][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.359893][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.359919][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.359944][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.359968][ T9844] kobject_add_internal+0x631/0xd10
[ 428.359998][ T9844] kobject_add+0x163/0x240
[ 428.360024][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.360052][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.360080][ T9844] device_add+0x408/0xb90
[ 428.360107][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.360135][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.360167][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.360189][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.360214][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.360242][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.360264][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.360287][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.360312][ T9844] hci_event_packet+0x659/0xef0
[ 428.360343][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.360364][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.360382][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.360406][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.360436][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.360462][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.360496][ T9844] ? process_one_work+0x8be/0x1630
[ 428.360518][ T9844] process_one_work+0x98b/0x1630
[ 428.360562][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.360583][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.360619][ T9844] worker_thread+0xb49/0x1140
[ 428.360656][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.360694][ T9844] kthread+0x388/0x470
[ 428.360713][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.360735][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.360754][ T9844] ret_from_fork+0x514/0xb70
[ 428.360778][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.360798][ T9844] ? __switch_to+0xc79/0x1410
[ 428.360827][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.360847][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.360885][ T9844]
[ 428.360931][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.360965][ T9844] Bluetooth: hci5: failed to register connection device
[ 428.366077][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 428.366101][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.366124][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.366135][ T9844] Workqueue: hci4 hci_rx_work
[ 428.366167][ T9844] Call Trace:
[ 428.366175][ T9844]
[ 428.366183][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.366214][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.366235][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.366260][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.366285][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.366309][ T9844] kobject_add_internal+0x631/0xd10
[ 428.366339][ T9844] kobject_add+0x163/0x240
[ 428.366365][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.366393][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.366421][ T9844] device_add+0x408/0xb90
[ 428.366449][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.366478][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.366509][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.366531][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.366556][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.366584][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.366608][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.366630][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.366662][ T9844] hci_event_packet+0x659/0xef0
[ 428.366693][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.366714][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.366733][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.366758][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.366787][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.366813][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.366848][ T9844] ? process_one_work+0x8be/0x1630
[ 428.366869][ T9844] process_one_work+0x98b/0x1630
[ 428.366912][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.366933][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.366972][ T9844] worker_thread+0xb49/0x1140
[ 428.367005][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.367043][ T9844] kthread+0x388/0x470
[ 428.367062][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.367083][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.367103][ T9844] ret_from_fork+0x514/0xb70
[ 428.367127][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.367147][ T9844] ? __switch_to+0xc79/0x1410
[ 428.367176][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.367197][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.367235][ T9844]
[ 428.367288][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.367322][ T9844] Bluetooth: hci4: failed to register connection device
[ 428.442058][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 428.442083][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.442105][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.442117][ T9844] Workqueue: hci2 hci_rx_work
[ 428.442147][ T9844] Call Trace:
[ 428.442155][ T9844]
[ 428.442163][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.442189][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.442212][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.442236][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.442261][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.442285][ T9844] kobject_add_internal+0x631/0xd10
[ 428.442315][ T9844] kobject_add+0x163/0x240
[ 428.442349][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.442376][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.442405][ T9844] device_add+0x408/0xb90
[ 428.442442][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.442470][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.442502][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.442525][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.442550][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.442578][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.442600][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.442636][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.442661][ T9844] hci_event_packet+0x659/0xef0
[ 428.442692][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.442713][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.442732][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.442756][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.442786][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.442812][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.442847][ T9844] ? process_one_work+0x8be/0x1630
[ 428.442870][ T9844] process_one_work+0x98b/0x1630
[ 428.442912][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.442933][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.442972][ T9844] worker_thread+0xb49/0x1140
[ 428.443004][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.443047][ T9844] kthread+0x388/0x470
[ 428.443066][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.443087][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.443106][ T9844] ret_from_fork+0x514/0xb70
[ 428.443130][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.443151][ T9844] ? __switch_to+0xc79/0x1410
[ 428.443178][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.443198][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.443237][ T9844]
[ 428.444792][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.444832][ T9844] Bluetooth: hci2: failed to register connection device
[ 428.561651][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 428.561676][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.561697][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.561709][ T9844] Workqueue: hci4 hci_rx_work
[ 428.561740][ T9844] Call Trace:
[ 428.561748][ T9844]
[ 428.561760][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.561786][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.561808][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.561833][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.561857][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.561882][ T9844] kobject_add_internal+0x631/0xd10
[ 428.561911][ T9844] kobject_add+0x163/0x240
[ 428.561937][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.561966][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.561993][ T9844] device_add+0x408/0xb90
[ 428.562020][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.562049][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.562080][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.562103][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.562128][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.562157][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.562179][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.562202][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.562227][ T9844] hci_event_packet+0x659/0xef0
[ 428.562259][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.562279][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.562297][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.562321][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.562351][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.562376][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.562411][ T9844] ? process_one_work+0x8be/0x1630
[ 428.562433][ T9844] process_one_work+0x98b/0x1630
[ 428.562476][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.562497][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.562536][ T9844] worker_thread+0xb49/0x1140
[ 428.562568][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.562612][ T9844] kthread+0x388/0x470
[ 428.562631][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.562652][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.562672][ T9844] ret_from_fork+0x514/0xb70
[ 428.562695][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.562716][ T9844] ? __switch_to+0xc79/0x1410
[ 428.562744][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.562764][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.562802][ T9844]
[ 428.562849][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.562881][ T9844] Bluetooth: hci4: failed to register connection device
[ 428.647332][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 428.647357][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.647380][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.647392][ T9844] Workqueue: hci2 hci_rx_work
[ 428.647424][ T9844] Call Trace:
[ 428.647432][ T9844]
[ 428.647441][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.647467][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.647490][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.647515][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.647540][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.647564][ T9844] kobject_add_internal+0x631/0xd10
[ 428.647594][ T9844] kobject_add+0x163/0x240
[ 428.647627][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.647655][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.647683][ T9844] device_add+0x408/0xb90
[ 428.647711][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.647739][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.647771][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.647793][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.647819][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.647847][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.647870][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.647892][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.647918][ T9844] hci_event_packet+0x659/0xef0
[ 428.647948][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.647969][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.647988][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.648012][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.648042][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.648067][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.648103][ T9844] ? process_one_work+0x8be/0x1630
[ 428.648124][ T9844] process_one_work+0x98b/0x1630
[ 428.648167][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.648188][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.648228][ T9844] worker_thread+0xb49/0x1140
[ 428.648259][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.648298][ T9844] kthread+0x388/0x470
[ 428.648317][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.648338][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.648357][ T9844] ret_from_fork+0x514/0xb70
[ 428.648381][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.648402][ T9844] ? __switch_to+0xc79/0x1410
[ 428.648431][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.648467][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.648509][ T9844]
[ 428.648549][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.648587][ T9844] Bluetooth: hci2: failed to register connection device
[ 428.684458][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 428.684482][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.684502][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.684514][ T9844] Workqueue: hci5 hci_rx_work
[ 428.684546][ T9844] Call Trace:
[ 428.684554][ T9844]
[ 428.684562][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.684588][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.684617][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.684642][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.684667][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.684692][ T9844] kobject_add_internal+0x631/0xd10
[ 428.684721][ T9844] kobject_add+0x163/0x240
[ 428.684747][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.684776][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.684804][ T9844] device_add+0x408/0xb90
[ 428.684832][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.684860][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.684891][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.684913][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.684939][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.684967][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.684990][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.685012][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.685038][ T9844] hci_event_packet+0x659/0xef0
[ 428.685069][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.685090][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.685109][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.685133][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.685163][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.685188][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.685226][ T9844] ? process_one_work+0x8be/0x1630
[ 428.685248][ T9844] process_one_work+0x98b/0x1630
[ 428.685291][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.685311][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.685347][ T9844] worker_thread+0xb49/0x1140
[ 428.685377][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.685412][ T9844] kthread+0x388/0x470
[ 428.685429][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.685450][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.685470][ T9844] ret_from_fork+0x514/0xb70
[ 428.685493][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.685512][ T9844] ? __switch_to+0xc79/0x1410
[ 428.685534][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.685549][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.685578][ T9844]
[ 428.685781][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.685813][ T9844] Bluetooth: hci5: failed to register connection device
[ 428.764492][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 428.764518][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.764540][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.764552][ T9844] Workqueue: hci4 hci_rx_work
[ 428.764584][ T9844] Call Trace:
[ 428.764592][ T9844]
[ 428.764604][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.764630][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.764653][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.764686][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.764711][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.764735][ T9844] kobject_add_internal+0x631/0xd10
[ 428.764765][ T9844] kobject_add+0x163/0x240
[ 428.764791][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.764819][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.764848][ T9844] device_add+0x408/0xb90
[ 428.764876][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.764903][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.764931][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.764953][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.764977][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.765005][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.765029][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.765051][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.765076][ T9844] hci_event_packet+0x659/0xef0
[ 428.765107][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.765128][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.765148][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.765172][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.765202][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.765227][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.765262][ T9844] ? process_one_work+0x8be/0x1630
[ 428.765284][ T9844] process_one_work+0x98b/0x1630
[ 428.765324][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.765343][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.765383][ T9844] worker_thread+0xb49/0x1140
[ 428.765415][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.765454][ T9844] kthread+0x388/0x470
[ 428.765472][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.765494][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.765513][ T9844] ret_from_fork+0x514/0xb70
[ 428.765537][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.765557][ T9844] ? __switch_to+0xc79/0x1410
[ 428.765585][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.765605][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.765643][ T9844]
[ 428.765898][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.765936][ T9844] Bluetooth: hci4: failed to register connection device
[ 428.850677][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 428.850702][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.850723][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.850735][ T9844] Workqueue: hci5 hci_rx_work
[ 428.850768][ T9844] Call Trace:
[ 428.850775][ T9844]
[ 428.850784][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.850810][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.850832][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.850857][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.850882][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.850906][ T9844] kobject_add_internal+0x631/0xd10
[ 428.850937][ T9844] kobject_add+0x163/0x240
[ 428.850963][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.850991][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.851019][ T9844] device_add+0x408/0xb90
[ 428.851046][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.851076][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.851107][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.851129][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.851155][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.851182][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.851205][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.851227][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.851252][ T9844] hci_event_packet+0x659/0xef0
[ 428.851283][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.851304][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.851322][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.851354][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.851384][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.851410][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.851444][ T9844] ? process_one_work+0x8be/0x1630
[ 428.851466][ T9844] process_one_work+0x98b/0x1630
[ 428.851509][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.851529][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.851570][ T9844] worker_thread+0xb49/0x1140
[ 428.851608][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.851645][ T9844] kthread+0x388/0x470
[ 428.851663][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.851688][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.851708][ T9844] ret_from_fork+0x514/0xb70
[ 428.851732][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.851752][ T9844] ? __switch_to+0xc79/0x1410
[ 428.851781][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.851801][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.851839][ T9844]
[ 428.851886][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.851921][ T9844] Bluetooth: hci5: failed to register connection device
[ 428.897638][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 428.897664][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 428.897686][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 428.897699][ T9844] Workqueue: hci4 hci_rx_work
[ 428.897730][ T9844] Call Trace:
[ 428.897737][ T9844]
[ 428.897746][ T9844] dump_stack_lvl+0xe8/0x150
[ 428.897772][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 428.897795][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.897820][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 428.897845][ T9844] ? rt_spin_unlock+0x160/0x200
[ 428.897869][ T9844] kobject_add_internal+0x631/0xd10
[ 428.897899][ T9844] kobject_add+0x163/0x240
[ 428.897925][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 428.897953][ T9844] ? get_device_parent+0x370/0x3a0
[ 428.897982][ T9844] device_add+0x408/0xb90
[ 428.898009][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 428.898037][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 428.898072][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 428.898094][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.898120][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 428.898147][ T9844] ? skb_pull_data+0xfb/0x200
[ 428.898170][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 428.898193][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 428.898218][ T9844] hci_event_packet+0x659/0xef0
[ 428.898250][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 428.898269][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 428.898288][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 428.898313][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 428.898343][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 428.898367][ T9844] hci_rx_work+0x3ee/0x1040
[ 428.898402][ T9844] ? process_one_work+0x8be/0x1630
[ 428.898424][ T9844] process_one_work+0x98b/0x1630
[ 428.898466][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 428.898487][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 428.898526][ T9844] worker_thread+0xb49/0x1140
[ 428.898558][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 428.898603][ T9844] kthread+0x388/0x470
[ 428.898623][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 428.898644][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.898663][ T9844] ret_from_fork+0x514/0xb70
[ 428.898688][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 428.898708][ T9844] ? __switch_to+0xc79/0x1410
[ 428.898737][ T9844] ? __pfx_kthread+0x10/0x10
[ 428.898756][ T9844] ret_from_fork_asm+0x1a/0x30
[ 428.898795][ T9844]
[ 428.898957][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 428.898993][ T9844] Bluetooth: hci4: failed to register connection device
[ 429.024868][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 429.024894][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.024917][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.024929][ T9844] Workqueue: hci5 hci_rx_work
[ 429.024958][ T9844] Call Trace:
[ 429.024967][ T9844]
[ 429.024976][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.025003][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.025025][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.025050][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.025075][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.025100][ T9844] kobject_add_internal+0x631/0xd10
[ 429.025130][ T9844] kobject_add+0x163/0x240
[ 429.025157][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.025184][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.025213][ T9844] device_add+0x408/0xb90
[ 429.025241][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.025270][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.025302][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.025326][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.025349][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.025375][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.025397][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.025419][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.025444][ T9844] hci_event_packet+0x659/0xef0
[ 429.025475][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.025495][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.025513][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.025536][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.025572][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.025598][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.025634][ T9844] ? process_one_work+0x8be/0x1630
[ 429.025656][ T9844] process_one_work+0x98b/0x1630
[ 429.025698][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.025718][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.025759][ T9844] worker_thread+0xb49/0x1140
[ 429.025791][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.025830][ T9844] kthread+0x388/0x470
[ 429.025850][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.025871][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.025890][ T9844] ret_from_fork+0x514/0xb70
[ 429.025915][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.025935][ T9844] ? __switch_to+0xc79/0x1410
[ 429.025965][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.025984][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.026023][ T9844]
[ 429.026241][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.026369][ T9844] Bluetooth: hci5: failed to register connection device
[ 429.033043][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 429.033068][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.033090][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.033102][ T9844] Workqueue: hci4 hci_rx_work
[ 429.033134][ T9844] Call Trace:
[ 429.033142][ T9844]
[ 429.033150][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.033176][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.033198][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.033224][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.033249][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.033281][ T9844] kobject_add_internal+0x631/0xd10
[ 429.033315][ T9844] kobject_add+0x163/0x240
[ 429.033342][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.033370][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.033399][ T9844] device_add+0x408/0xb90
[ 429.033427][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.033456][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.033488][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.033509][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.033536][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.033564][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.033587][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.033610][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.033635][ T9844] hci_event_packet+0x659/0xef0
[ 429.033667][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.033687][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.033707][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.033730][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.033761][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.033786][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.033821][ T9844] ? process_one_work+0x8be/0x1630
[ 429.033843][ T9844] process_one_work+0x98b/0x1630
[ 429.033896][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.033917][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.033958][ T9844] worker_thread+0xb49/0x1140
[ 429.033994][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.034041][ T9844] kthread+0x388/0x470
[ 429.034066][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.034088][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.034107][ T9844] ret_from_fork+0x514/0xb70
[ 429.034132][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.034153][ T9844] ? __switch_to+0xc79/0x1410
[ 429.034182][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.034202][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.034241][ T9844]
[ 429.034295][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.034331][ T9844] Bluetooth: hci4: failed to register connection device
[ 429.047554][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 429.047578][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.047600][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.047613][ T9844] Workqueue: hci2 hci_rx_work
[ 429.047641][ T9844] Call Trace:
[ 429.047648][ T9844]
[ 429.047656][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.047682][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.047705][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.047730][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.047755][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.047780][ T9844] kobject_add_internal+0x631/0xd10
[ 429.047809][ T9844] kobject_add+0x163/0x240
[ 429.047835][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.047863][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.047899][ T9844] device_add+0x408/0xb90
[ 429.047926][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.047956][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.047987][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.048009][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.048035][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.048063][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.048087][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.048110][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.048135][ T9844] hci_event_packet+0x659/0xef0
[ 429.048191][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.048211][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.048230][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.048255][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.048286][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.048311][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.048346][ T9844] ? process_one_work+0x8be/0x1630
[ 429.048368][ T9844] process_one_work+0x98b/0x1630
[ 429.048429][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.048450][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.048491][ T9844] worker_thread+0xb49/0x1140
[ 429.048523][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.048562][ T9844] kthread+0x388/0x470
[ 429.048581][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.048602][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.048622][ T9844] ret_from_fork+0x514/0xb70
[ 429.048646][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.048667][ T9844] ? __switch_to+0xc79/0x1410
[ 429.048695][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.048715][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.048753][ T9844]
[ 429.048782][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.048821][ T9844] Bluetooth: hci2: failed to register connection device
[ 429.206923][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 429.206951][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.206973][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.206985][ T9844] Workqueue: hci2 hci_rx_work
[ 429.207017][ T9844] Call Trace:
[ 429.207026][ T9844]
[ 429.207035][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.207060][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.207082][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.207107][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.207132][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.207157][ T9844] kobject_add_internal+0x631/0xd10
[ 429.207186][ T9844] kobject_add+0x163/0x240
[ 429.207212][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.207241][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.207269][ T9844] device_add+0x408/0xb90
[ 429.207296][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.207325][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.207356][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.207378][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.207404][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.207432][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.207454][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.207477][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.207502][ T9844] hci_event_packet+0x659/0xef0
[ 429.207534][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.207554][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.207573][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.207597][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.207627][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.207652][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.207686][ T9844] ? process_one_work+0x8be/0x1630
[ 429.207708][ T9844] process_one_work+0x98b/0x1630
[ 429.207752][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.207771][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.207811][ T9844] worker_thread+0xb49/0x1140
[ 429.207844][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.207883][ T9844] kthread+0x388/0x470
[ 429.207908][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.207930][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.207949][ T9844] ret_from_fork+0x514/0xb70
[ 429.207973][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.207994][ T9844] ? __switch_to+0xc79/0x1410
[ 429.208023][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.208043][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.208081][ T9844]
[ 429.208118][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.208156][ T9844] Bluetooth: hci2: failed to register connection device
[ 429.211072][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 429.211096][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.211118][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.211129][ T9844] Workqueue: hci4 hci_rx_work
[ 429.211161][ T9844] Call Trace:
[ 429.211169][ T9844]
[ 429.211178][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.211208][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.211230][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.211254][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.211280][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.211309][ T9844] kobject_add_internal+0x631/0xd10
[ 429.211339][ T9844] kobject_add+0x163/0x240
[ 429.211365][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.211394][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.211422][ T9844] device_add+0x408/0xb90
[ 429.211449][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.211478][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.211509][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.211531][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.211557][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.211585][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.211608][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.211631][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.211657][ T9844] hci_event_packet+0x659/0xef0
[ 429.211689][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.211709][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.211728][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.211752][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.211782][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.211808][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.211842][ T9844] ? process_one_work+0x8be/0x1630
[ 429.211864][ T9844] process_one_work+0x98b/0x1630
[ 429.211912][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.211932][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.211971][ T9844] worker_thread+0xb49/0x1140
[ 429.212005][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.212043][ T9844] kthread+0x388/0x470
[ 429.212062][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.212084][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.212104][ T9844] ret_from_fork+0x514/0xb70
[ 429.212127][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.212147][ T9844] ? __switch_to+0xc79/0x1410
[ 429.212187][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.212207][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.212242][ T9844]
[ 429.212290][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.212323][ T9844] Bluetooth: hci4: failed to register connection device
[ 429.352585][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 429.352611][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.352633][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.352645][ T9844] Workqueue: hci2 hci_rx_work
[ 429.352676][ T9844] Call Trace:
[ 429.352684][ T9844]
[ 429.352692][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.352718][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.352741][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.352766][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.352790][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.352815][ T9844] kobject_add_internal+0x631/0xd10
[ 429.352845][ T9844] kobject_add+0x163/0x240
[ 429.352871][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.352900][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.352929][ T9844] device_add+0x408/0xb90
[ 429.352956][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.352984][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.353015][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.353037][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.353063][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.353090][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.353113][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.353137][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.353170][ T9844] hci_event_packet+0x659/0xef0
[ 429.353202][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.353223][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.353241][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.353266][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.353295][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.353321][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.353357][ T9844] ? process_one_work+0x8be/0x1630
[ 429.353379][ T9844] process_one_work+0x98b/0x1630
[ 429.353421][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.353442][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.353482][ T9844] worker_thread+0xb49/0x1140
[ 429.353514][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.353558][ T9844] kthread+0x388/0x470
[ 429.353581][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.353601][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.353621][ T9844] ret_from_fork+0x514/0xb70
[ 429.353645][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.353666][ T9844] ? __switch_to+0xc79/0x1410
[ 429.353694][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.353714][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.353752][ T9844]
[ 429.353799][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.353833][ T9844] Bluetooth: hci2: failed to register connection device
[ 429.355203][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 429.355223][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.355244][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.355256][ T9844] Workqueue: hci4 hci_rx_work
[ 429.355284][ T9844] Call Trace:
[ 429.355291][ T9844]
[ 429.355300][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.355327][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.355348][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.355371][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.355395][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.355418][ T9844] kobject_add_internal+0x631/0xd10
[ 429.355456][ T9844] kobject_add+0x163/0x240
[ 429.355482][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.355508][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.355546][ T9844] device_add+0x408/0xb90
[ 429.355572][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.355601][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.355632][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.355653][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.355677][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.355704][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.355725][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.355747][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.355771][ T9844] hci_event_packet+0x659/0xef0
[ 429.355797][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.355817][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.355837][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.355862][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.355892][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.355919][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.355955][ T9844] ? process_one_work+0x8be/0x1630
[ 429.355977][ T9844] process_one_work+0x98b/0x1630
[ 429.356021][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.356041][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.356079][ T9844] worker_thread+0xb49/0x1140
[ 429.356110][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.356146][ T9844] kthread+0x388/0x470
[ 429.356166][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.356187][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.356207][ T9844] ret_from_fork+0x514/0xb70
[ 429.356231][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.356251][ T9844] ? __switch_to+0xc79/0x1410
[ 429.356280][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.356299][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.356337][ T9844]
[ 429.356556][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.356593][ T9844] Bluetooth: hci4: failed to register connection device
[ 429.404447][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 429.404472][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.404494][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.404506][ T9844] Workqueue: hci5 hci_rx_work
[ 429.404546][ T9844] Call Trace:
[ 429.404553][ T9844]
[ 429.404562][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.404588][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.404610][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.404635][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.404660][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.404684][ T9844] kobject_add_internal+0x631/0xd10
[ 429.404714][ T9844] kobject_add+0x163/0x240
[ 429.404740][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.404767][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.404795][ T9844] device_add+0x408/0xb90
[ 429.404822][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.404850][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.404882][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.404904][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.404929][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.404955][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.404978][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.405001][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.405027][ T9844] hci_event_packet+0x659/0xef0
[ 429.405057][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.405078][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.405097][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.405121][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.405151][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.405176][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.405211][ T9844] ? process_one_work+0x8be/0x1630
[ 429.405234][ T9844] process_one_work+0x98b/0x1630
[ 429.405276][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.405296][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.405336][ T9844] worker_thread+0xb49/0x1140
[ 429.405367][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.405405][ T9844] kthread+0x388/0x470
[ 429.405424][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.405446][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.405466][ T9844] ret_from_fork+0x514/0xb70
[ 429.405490][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.405516][ T9844] ? __switch_to+0xc79/0x1410
[ 429.405545][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.405565][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.405604][ T9844]
[ 429.405768][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.405804][ T9844] Bluetooth: hci5: failed to register connection device
[ 429.513890][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 429.513915][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.513937][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.513949][ T9844] Workqueue: hci2 hci_rx_work
[ 429.513981][ T9844] Call Trace:
[ 429.513989][ T9844]
[ 429.513998][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.514024][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.514050][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.514076][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.514101][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.514125][ T9844] kobject_add_internal+0x631/0xd10
[ 429.514154][ T9844] kobject_add+0x163/0x240
[ 429.514180][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.514209][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.514237][ T9844] device_add+0x408/0xb90
[ 429.514263][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.514292][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.514324][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.514345][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.514371][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.514398][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.514422][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.514444][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.514470][ T9844] hci_event_packet+0x659/0xef0
[ 429.514580][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.514601][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.514620][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.514644][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.514674][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.514699][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.514734][ T9844] ? process_one_work+0x8be/0x1630
[ 429.514753][ T9844] process_one_work+0x98b/0x1630
[ 429.514794][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.514814][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.514854][ T9844] worker_thread+0xb49/0x1140
[ 429.514886][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.514925][ T9844] kthread+0x388/0x470
[ 429.514944][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.514965][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.514985][ T9844] ret_from_fork+0x514/0xb70
[ 429.515009][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.515029][ T9844] ? __switch_to+0xc79/0x1410
[ 429.515057][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.515076][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.515112][ T9844]
[ 429.517818][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.517864][ T9844] Bluetooth: hci2: failed to register connection device
[ 429.549880][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 429.549906][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.549927][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.549939][ T9844] Workqueue: hci5 hci_rx_work
[ 429.549970][ T9844] Call Trace:
[ 429.549978][ T9844]
[ 429.549987][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.550013][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.550048][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.550073][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.550099][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.550122][ T9844] kobject_add_internal+0x631/0xd10
[ 429.550152][ T9844] kobject_add+0x163/0x240
[ 429.550178][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.550206][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.550235][ T9844] device_add+0x408/0xb90
[ 429.550261][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.550290][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.550321][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.550343][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.550368][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.550396][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.550419][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.550442][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.550467][ T9844] hci_event_packet+0x659/0xef0
[ 429.550504][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.550525][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.550544][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.550568][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.550599][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.550623][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.550658][ T9844] ? process_one_work+0x8be/0x1630
[ 429.550680][ T9844] process_one_work+0x98b/0x1630
[ 429.550723][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.550743][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.550782][ T9844] worker_thread+0xb49/0x1140
[ 429.550815][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.550853][ T9844] kthread+0x388/0x470
[ 429.550872][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.550897][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.550917][ T9844] ret_from_fork+0x514/0xb70
[ 429.550941][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.550961][ T9844] ? __switch_to+0xc79/0x1410
[ 429.550989][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.551009][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.551047][ T9844]
[ 429.551095][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.551130][ T9844] Bluetooth: hci5: failed to register connection device
[ 429.585991][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 429.586016][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.586038][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.586050][ T9844] Workqueue: hci4 hci_rx_work
[ 429.586082][ T9844] Call Trace:
[ 429.586089][ T9844]
[ 429.586098][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.586124][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.586147][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.586171][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.586196][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.586220][ T9844] kobject_add_internal+0x631/0xd10
[ 429.586250][ T9844] kobject_add+0x163/0x240
[ 429.586276][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.586304][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.586335][ T9844] device_add+0x408/0xb90
[ 429.586363][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.586391][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.586422][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.586444][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.586470][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.586505][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.586529][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.586551][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.586577][ T9844] hci_event_packet+0x659/0xef0
[ 429.586609][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.586629][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.586648][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.586672][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.586702][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.586727][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.586762][ T9844] ? process_one_work+0x8be/0x1630
[ 429.586785][ T9844] process_one_work+0x98b/0x1630
[ 429.586827][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.586846][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.586885][ T9844] worker_thread+0xb49/0x1140
[ 429.586917][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.586955][ T9844] kthread+0x388/0x470
[ 429.586974][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.586996][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.587016][ T9844] ret_from_fork+0x514/0xb70
[ 429.587039][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.587060][ T9844] ? __switch_to+0xc79/0x1410
[ 429.587088][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.587108][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.587145][ T9844]
[ 429.587195][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.587229][ T9844] Bluetooth: hci4: failed to register connection device
[ 429.658184][ T9844] Bluetooth: hci4: command 0x2016 tx timeout
[ 429.809393][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 429.809419][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.809440][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.809453][ T9844] Workqueue: hci2 hci_rx_work
[ 429.809483][ T9844] Call Trace:
[ 429.809491][ T9844]
[ 429.809506][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.809533][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.809555][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.809580][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.809605][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.809629][ T9844] kobject_add_internal+0x631/0xd10
[ 429.809659][ T9844] kobject_add+0x163/0x240
[ 429.809685][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.809713][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.809741][ T9844] device_add+0x408/0xb90
[ 429.809768][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.809796][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.809827][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.809850][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.809875][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.809902][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.809925][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.809949][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.809974][ T9844] hci_event_packet+0x659/0xef0
[ 429.810006][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.810026][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.810045][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.810069][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.810100][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.810125][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.810159][ T9844] ? process_one_work+0x8be/0x1630
[ 429.810181][ T9844] process_one_work+0x98b/0x1630
[ 429.810224][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.810244][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.810283][ T9844] worker_thread+0xb49/0x1140
[ 429.810316][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.810358][ T9844] kthread+0x388/0x470
[ 429.810377][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.810399][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.810419][ T9844] ret_from_fork+0x514/0xb70
[ 429.810442][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.810463][ T9844] ? __switch_to+0xc79/0x1410
[ 429.810491][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.810516][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.810555][ T9844]
[ 429.810600][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.810635][ T9844] Bluetooth: hci2: failed to register connection device
[ 429.814467][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 429.814490][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.814519][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.814531][ T9844] Workqueue: hci5 hci_rx_work
[ 429.814561][ T9844] Call Trace:
[ 429.814569][ T9844]
[ 429.814578][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.814603][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.814627][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.814651][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.814676][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.814700][ T9844] kobject_add_internal+0x631/0xd10
[ 429.814730][ T9844] kobject_add+0x163/0x240
[ 429.814755][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.814784][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.814812][ T9844] device_add+0x408/0xb90
[ 429.814839][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.814868][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.814899][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.814921][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.814946][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.814974][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.814997][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.815020][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.815045][ T9844] hci_event_packet+0x659/0xef0
[ 429.815077][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.815097][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.815116][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.815141][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.815170][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.815196][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.815230][ T9844] ? process_one_work+0x8be/0x1630
[ 429.815252][ T9844] process_one_work+0x98b/0x1630
[ 429.815295][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.815318][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.815355][ T9844] worker_thread+0xb49/0x1140
[ 429.815386][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.815424][ T9844] kthread+0x388/0x470
[ 429.815443][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.815465][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.815485][ T9844] ret_from_fork+0x514/0xb70
[ 429.815514][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.815535][ T9844] ? __switch_to+0xc79/0x1410
[ 429.815563][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.815583][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.815622][ T9844]
[ 429.816260][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.816298][ T9844] Bluetooth: hci5: failed to register connection device
[ 429.827870][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 429.827895][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.827919][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.827932][ T9844] Workqueue: hci4 hci_rx_work
[ 429.827963][ T9844] Call Trace:
[ 429.827971][ T9844]
[ 429.827980][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.828006][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.828030][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.828056][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.828081][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.828107][ T9844] kobject_add_internal+0x631/0xd10
[ 429.828138][ T9844] kobject_add+0x163/0x240
[ 429.828165][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.828193][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.828223][ T9844] device_add+0x408/0xb90
[ 429.828250][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.828280][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.828312][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.828334][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.828378][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.828405][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.828428][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.828451][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.828477][ T9844] hci_event_packet+0x659/0xef0
[ 429.828515][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.828535][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.828554][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.828579][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.828609][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.828633][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.828668][ T9844] ? process_one_work+0x8be/0x1630
[ 429.828690][ T9844] process_one_work+0x98b/0x1630
[ 429.828733][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.828752][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.828793][ T9844] worker_thread+0xb49/0x1140
[ 429.828828][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.828867][ T9844] kthread+0x388/0x470
[ 429.828886][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.828907][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.828927][ T9844] ret_from_fork+0x514/0xb70
[ 429.828951][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.828972][ T9844] ? __switch_to+0xc79/0x1410
[ 429.829000][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.829020][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.829058][ T9844]
[ 429.829106][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.829139][ T9844] Bluetooth: hci4: failed to register connection device
[ 429.975568][ T9844] Bluetooth: hci5: command 0x2016 tx timeout
[ 429.989173][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 429.989198][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.989220][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.989232][ T9844] Workqueue: hci5 hci_rx_work
[ 429.989263][ T9844] Call Trace:
[ 429.989271][ T9844]
[ 429.989280][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.989306][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.989329][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.989354][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.989380][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.989405][ T9844] kobject_add_internal+0x631/0xd10
[ 429.989435][ T9844] kobject_add+0x163/0x240
[ 429.989462][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.989491][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.989520][ T9844] device_add+0x408/0xb90
[ 429.989548][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.989577][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.989609][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.989632][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.989658][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.989687][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.989710][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.989734][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.989760][ T9844] hci_event_packet+0x659/0xef0
[ 429.989793][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.989821][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.989842][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.989867][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.989895][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.989920][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.989954][ T9844] ? process_one_work+0x8be/0x1630
[ 429.989976][ T9844] process_one_work+0x98b/0x1630
[ 429.990017][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.990035][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.990075][ T9844] worker_thread+0xb49/0x1140
[ 429.990108][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.990148][ T9844] kthread+0x388/0x470
[ 429.990168][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.990189][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.990209][ T9844] ret_from_fork+0x514/0xb70
[ 429.990234][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.990255][ T9844] ? __switch_to+0xc79/0x1410
[ 429.990285][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.990305][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.990344][ T9844]
[ 429.990395][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.990432][ T9844] Bluetooth: hci5: failed to register connection device
[ 429.991466][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 429.991486][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.991508][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.991518][ T9844] Workqueue: hci2 hci_rx_work
[ 429.991544][ T9844] Call Trace:
[ 429.991551][ T9844]
[ 429.991557][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.991578][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.991595][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.991615][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.991637][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.991659][ T9844] kobject_add_internal+0x631/0xd10
[ 429.991686][ T9844] kobject_add+0x163/0x240
[ 429.991710][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.991736][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.991763][ T9844] device_add+0x408/0xb90
[ 429.991785][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.991807][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.991839][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.991856][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.991881][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.991903][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.991921][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.991940][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.991960][ T9844] hci_event_packet+0x659/0xef0
[ 429.991985][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.992001][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.992016][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.992035][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.992058][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.992079][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.992113][ T9844] ? process_one_work+0x8be/0x1630
[ 429.992133][ T9844] process_one_work+0x98b/0x1630
[ 429.992176][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.992196][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.992233][ T9844] worker_thread+0xb49/0x1140
[ 429.992267][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.992306][ T9844] kthread+0x388/0x470
[ 429.992327][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.992347][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.992367][ T9844] ret_from_fork+0x514/0xb70
[ 429.992391][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.992408][ T9844] ? __switch_to+0xc79/0x1410
[ 429.992430][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.992445][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.992479][ T9844]
[ 429.992527][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.992553][ T9844] Bluetooth: hci2: failed to register connection device
[ 429.998182][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 429.998205][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 429.998227][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 429.998239][ T9844] Workqueue: hci4 hci_rx_work
[ 429.998274][ T9844] Call Trace:
[ 429.998281][ T9844]
[ 429.998290][ T9844] dump_stack_lvl+0xe8/0x150
[ 429.998315][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 429.998338][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.998363][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 429.998388][ T9844] ? rt_spin_unlock+0x160/0x200
[ 429.998413][ T9844] kobject_add_internal+0x631/0xd10
[ 429.998443][ T9844] kobject_add+0x163/0x240
[ 429.998469][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 429.998497][ T9844] ? get_device_parent+0x370/0x3a0
[ 429.998526][ T9844] device_add+0x408/0xb90
[ 429.998553][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 429.998581][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 429.998613][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 429.998634][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.998660][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 429.998689][ T9844] ? skb_pull_data+0xfb/0x200
[ 429.998712][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 429.998735][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 429.998761][ T9844] hci_event_packet+0x659/0xef0
[ 429.998793][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 429.998819][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 429.998838][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 429.998863][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 429.998893][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 429.998919][ T9844] hci_rx_work+0x3ee/0x1040
[ 429.998954][ T9844] ? process_one_work+0x8be/0x1630
[ 429.998976][ T9844] process_one_work+0x98b/0x1630
[ 429.999019][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 429.999039][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 429.999078][ T9844] worker_thread+0xb49/0x1140
[ 429.999110][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 429.999149][ T9844] kthread+0x388/0x470
[ 429.999168][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 429.999190][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.999210][ T9844] ret_from_fork+0x514/0xb70
[ 429.999233][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 429.999254][ T9844] ? __switch_to+0xc79/0x1410
[ 429.999283][ T9844] ? __pfx_kthread+0x10/0x10
[ 429.999303][ T9844] ret_from_fork_asm+0x1a/0x30
[ 429.999341][ T9844]
[ 429.999389][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 429.999422][ T9844] Bluetooth: hci4: failed to register connection device
[ 430.160969][ T6341] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 430.160993][ T6341] CPU: 1 UID: 0 PID: 6341 Comm: kworker/u9:3 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.161017][ T6341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.161028][ T6341] Workqueue: hci4 hci_rx_work
[ 430.161060][ T6341] Call Trace:
[ 430.161068][ T6341]
[ 430.161076][ T6341] dump_stack_lvl+0xe8/0x150
[ 430.161103][ T6341] sysfs_create_dir_ns+0x271/0x2a0
[ 430.161125][ T6341] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.161149][ T6341] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.161175][ T6341] ? rt_spin_unlock+0x160/0x200
[ 430.161199][ T6341] kobject_add_internal+0x631/0xd10
[ 430.161229][ T6341] kobject_add+0x163/0x240
[ 430.161254][ T6341] ? __pfx_kobject_add+0x10/0x10
[ 430.161283][ T6341] ? get_device_parent+0x370/0x3a0
[ 430.161311][ T6341] device_add+0x408/0xb90
[ 430.161338][ T6341] hci_conn_add_sysfs+0xd5/0x210
[ 430.161367][ T6341] le_conn_complete_evt+0x10e6/0x16b0
[ 430.161399][ T6341] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.161421][ T6341] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.161446][ T6341] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.161474][ T6341] ? skb_pull_data+0xfb/0x200
[ 430.161496][ T6341] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.161520][ T6341] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.161545][ T6341] hci_event_packet+0x659/0xef0
[ 430.161577][ T6341] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.161597][ T6341] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.161616][ T6341] ? __pfx_hci_event_packet+0x10/0x10
[ 430.161640][ T6341] ? rt_spin_unlock+0x14f/0x200
[ 430.161670][ T6341] ? hci_send_to_monitor+0xe2/0x590
[ 430.161696][ T6341] hci_rx_work+0x3ee/0x1040
[ 430.161760][ T6341] ? process_one_work+0x8be/0x1630
[ 430.161782][ T6341] process_one_work+0x98b/0x1630
[ 430.161824][ T6341] ? __pfx_process_one_work+0x10/0x10
[ 430.161845][ T6341] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.161885][ T6341] worker_thread+0xb49/0x1140
[ 430.161932][ T6341] kthread+0x388/0x470
[ 430.161951][ T6341] ? __pfx_worker_thread+0x10/0x10
[ 430.161972][ T6341] ? __pfx_kthread+0x10/0x10
[ 430.161992][ T6341] ret_from_fork+0x514/0xb70
[ 430.162016][ T6341] ? __pfx_ret_from_fork+0x10/0x10
[ 430.162036][ T6341] ? __switch_to+0xc79/0x1410
[ 430.162064][ T6341] ? __pfx_kthread+0x10/0x10
[ 430.162084][ T6341] ret_from_fork_asm+0x1a/0x30
[ 430.162123][ T6341]
[ 430.162152][ T6341] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.162189][ T6341] Bluetooth: hci4: failed to register connection device
[ 430.162436][T14695] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 430.162453][T14695] CPU: 1 UID: 0 PID: 14695 Comm: kworker/u9:9 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.162473][T14695] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.162485][T14695] Workqueue: hci2 hci_rx_work
[ 430.162510][T14695] Call Trace:
[ 430.162517][T14695]
[ 430.162525][T14695] dump_stack_lvl+0xe8/0x150
[ 430.162548][T14695] sysfs_create_dir_ns+0x271/0x2a0
[ 430.162570][T14695] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.162593][T14695] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.162618][T14695] ? rt_spin_unlock+0x160/0x200
[ 430.162642][T14695] kobject_add_internal+0x631/0xd10
[ 430.162671][T14695] kobject_add+0x163/0x240
[ 430.162697][T14695] ? __pfx_kobject_add+0x10/0x10
[ 430.162732][T14695] ? get_device_parent+0x370/0x3a0
[ 430.162760][T14695] device_add+0x408/0xb90
[ 430.162788][T14695] hci_conn_add_sysfs+0xd5/0x210
[ 430.162816][T14695] le_conn_complete_evt+0x10e6/0x16b0
[ 430.162846][T14695] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.162868][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.162894][T14695] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.162921][T14695] ? skb_pull_data+0xfb/0x200
[ 430.162943][T14695] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.162967][T14695] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.162992][T14695] hci_event_packet+0x659/0xef0
[ 430.163024][T14695] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.163045][T14695] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.163064][T14695] ? __pfx_hci_event_packet+0x10/0x10
[ 430.163089][T14695] ? rt_spin_unlock+0x14f/0x200
[ 430.163119][T14695] ? hci_send_to_monitor+0xe2/0x590
[ 430.163143][T14695] hci_rx_work+0x3ee/0x1040
[ 430.163178][T14695] ? process_one_work+0x8be/0x1630
[ 430.163199][T14695] process_one_work+0x98b/0x1630
[ 430.163241][T14695] ? __pfx_process_one_work+0x10/0x10
[ 430.163261][T14695] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.163301][T14695] worker_thread+0xb49/0x1140
[ 430.163333][T14695] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.163372][T14695] kthread+0x388/0x470
[ 430.163391][T14695] ? __pfx_worker_thread+0x10/0x10
[ 430.163412][T14695] ? __pfx_kthread+0x10/0x10
[ 430.163431][T14695] ret_from_fork+0x514/0xb70
[ 430.163454][T14695] ? __pfx_ret_from_fork+0x10/0x10
[ 430.163475][T14695] ? __switch_to+0xc79/0x1410
[ 430.163504][T14695] ? __pfx_kthread+0x10/0x10
[ 430.163523][T14695] ret_from_fork_asm+0x1a/0x30
[ 430.163561][T14695]
[ 430.163587][T14695] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.163618][T14695] Bluetooth: hci2: failed to register connection device
[ 430.163950][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 430.163965][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.163985][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.163997][ T9844] Workqueue: hci5 hci_rx_work
[ 430.164021][ T9844] Call Trace:
[ 430.164028][ T9844]
[ 430.164035][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.164058][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.164079][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.164102][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.164127][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.164152][ T9844] kobject_add_internal+0x631/0xd10
[ 430.164181][ T9844] kobject_add+0x163/0x240
[ 430.164206][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.164234][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.164262][ T9844] device_add+0x408/0xb90
[ 430.164290][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.164317][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.164348][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.164370][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.164395][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.164422][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.164444][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.164467][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.164493][ T9844] hci_event_packet+0x659/0xef0
[ 430.164524][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.164545][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.164583][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.164607][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.164637][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.164662][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.164697][ T9844] ? process_one_work+0x8be/0x1630
[ 430.164724][ T9844] process_one_work+0x98b/0x1630
[ 430.164769][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.164790][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.164828][ T9844] worker_thread+0xb49/0x1140
[ 430.164861][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.164899][ T9844] kthread+0x388/0x470
[ 430.164917][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.164938][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.164972][ T9844] ret_from_fork+0x514/0xb70
[ 430.164995][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.165015][ T9844] ? __switch_to+0xc79/0x1410
[ 430.165044][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.165064][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.165102][ T9844]
[ 430.165127][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.165160][ T9844] Bluetooth: hci5: failed to register connection device
[ 430.295638][ T9844] Bluetooth: hci2: command 0x2016 tx timeout
[ 430.318123][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 430.318149][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.318171][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.318183][ T9844] Workqueue: hci2 hci_rx_work
[ 430.318215][ T9844] Call Trace:
[ 430.318223][ T9844]
[ 430.318231][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.318257][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.318280][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.318305][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.318330][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.318355][ T9844] kobject_add_internal+0x631/0xd10
[ 430.318385][ T9844] kobject_add+0x163/0x240
[ 430.318411][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.318439][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.318467][ T9844] device_add+0x408/0xb90
[ 430.318495][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.318523][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.318554][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.318577][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.318602][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.318630][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.318653][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.318677][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.318702][ T9844] hci_event_packet+0x659/0xef0
[ 430.318741][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.318762][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.318782][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.318807][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.318836][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.318862][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.318897][ T9844] ? process_one_work+0x8be/0x1630
[ 430.318919][ T9844] process_one_work+0x98b/0x1630
[ 430.318961][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.318982][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.319022][ T9844] worker_thread+0xb49/0x1140
[ 430.319052][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.319093][ T9844] kthread+0x388/0x470
[ 430.319112][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.319133][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.319153][ T9844] ret_from_fork+0x514/0xb70
[ 430.319177][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.319198][ T9844] ? __switch_to+0xc79/0x1410
[ 430.319227][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.319247][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.319285][ T9844]
[ 430.319332][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.319367][ T9844] Bluetooth: hci2: failed to register connection device
[ 430.320547][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 430.320568][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.320588][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.320599][ T9844] Workqueue: hci5 hci_rx_work
[ 430.320627][ T9844] Call Trace:
[ 430.320635][ T9844]
[ 430.320643][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.320667][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.320688][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.320719][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.320745][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.320770][ T9844] kobject_add_internal+0x631/0xd10
[ 430.320799][ T9844] kobject_add+0x163/0x240
[ 430.320825][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.320853][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.320882][ T9844] device_add+0x408/0xb90
[ 430.320909][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.320938][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.320970][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.320991][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.321018][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.321045][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.321068][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.321091][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.321116][ T9844] hci_event_packet+0x659/0xef0
[ 430.321148][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.321169][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.321189][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.321212][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.321243][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.321269][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.321303][ T9844] ? process_one_work+0x8be/0x1630
[ 430.321324][ T9844] process_one_work+0x98b/0x1630
[ 430.321370][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.321391][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.321430][ T9844] worker_thread+0xb49/0x1140
[ 430.321462][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.321501][ T9844] kthread+0x388/0x470
[ 430.321519][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.321541][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.321561][ T9844] ret_from_fork+0x514/0xb70
[ 430.321584][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.321604][ T9844] ? __switch_to+0xc79/0x1410
[ 430.321632][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.321652][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.321690][ T9844]
[ 430.321741][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.321776][ T9844] Bluetooth: hci5: failed to register connection device
[ 430.335731][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 430.335757][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.335779][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.335791][ T9844] Workqueue: hci4 hci_rx_work
[ 430.335821][ T9844] Call Trace:
[ 430.335829][ T9844]
[ 430.335837][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.335864][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.335886][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.335911][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.335936][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.335961][ T9844] kobject_add_internal+0x631/0xd10
[ 430.335991][ T9844] kobject_add+0x163/0x240
[ 430.336016][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.336044][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.336073][ T9844] device_add+0x408/0xb90
[ 430.336101][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.336129][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.336160][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.336182][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.336208][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.336235][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.336258][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.336282][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.336307][ T9844] hci_event_packet+0x659/0xef0
[ 430.336342][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.336364][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.336383][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.336407][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.336437][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.336462][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.336492][ T9844] ? process_one_work+0x8be/0x1630
[ 430.336510][ T9844] process_one_work+0x98b/0x1630
[ 430.336552][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.336572][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.336612][ T9844] worker_thread+0xb49/0x1140
[ 430.336644][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.336682][ T9844] kthread+0x388/0x470
[ 430.336701][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.336745][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.336765][ T9844] ret_from_fork+0x514/0xb70
[ 430.336789][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.336810][ T9844] ? __switch_to+0xc79/0x1410
[ 430.336839][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.336859][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.336897][ T9844]
[ 430.336948][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.336986][ T9844] Bluetooth: hci4: failed to register connection device
[ 430.532464][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 430.532490][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.532512][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.532523][ T9844] Workqueue: hci5 hci_rx_work
[ 430.532554][ T9844] Call Trace:
[ 430.532562][ T9844]
[ 430.532570][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.532596][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.532618][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.532643][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.532668][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.532692][ T9844] kobject_add_internal+0x631/0xd10
[ 430.532721][ T9844] kobject_add+0x163/0x240
[ 430.532747][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.532776][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.532804][ T9844] device_add+0x408/0xb90
[ 430.532831][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.532861][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.532892][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.532913][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.532939][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.532967][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.532990][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.533013][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.533038][ T9844] hci_event_packet+0x659/0xef0
[ 430.533070][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.533091][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.533110][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.533134][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.533165][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.533190][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.533225][ T9844] ? process_one_work+0x8be/0x1630
[ 430.533251][ T9844] process_one_work+0x98b/0x1630
[ 430.533294][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.533314][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.533354][ T9844] worker_thread+0xb49/0x1140
[ 430.533386][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.533423][ T9844] kthread+0x388/0x470
[ 430.533441][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.533468][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.533488][ T9844] ret_from_fork+0x514/0xb70
[ 430.533511][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.533531][ T9844] ? __switch_to+0xc79/0x1410
[ 430.533560][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.533580][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.533618][ T9844]
[ 430.533664][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.533698][ T9844] Bluetooth: hci5: failed to register connection device
[ 430.545175][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 430.545199][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.545220][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.545232][ T9844] Workqueue: hci4 hci_rx_work
[ 430.545262][ T9844] Call Trace:
[ 430.545270][ T9844]
[ 430.545278][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.545307][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.545328][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.545351][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.545376][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.545400][ T9844] kobject_add_internal+0x631/0xd10
[ 430.545430][ T9844] kobject_add+0x163/0x240
[ 430.545464][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.545492][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.545521][ T9844] device_add+0x408/0xb90
[ 430.545548][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.545577][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.545608][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.545630][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.545656][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.545684][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.545706][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.545725][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.545750][ T9844] hci_event_packet+0x659/0xef0
[ 430.545782][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.545803][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.545823][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.545847][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.545877][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.545903][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.545938][ T9844] ? process_one_work+0x8be/0x1630
[ 430.545960][ T9844] process_one_work+0x98b/0x1630
[ 430.546004][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.546024][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.546063][ T9844] worker_thread+0xb49/0x1140
[ 430.546095][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.546134][ T9844] kthread+0x388/0x470
[ 430.546153][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.546174][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.546193][ T9844] ret_from_fork+0x514/0xb70
[ 430.546218][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.546238][ T9844] ? __switch_to+0xc79/0x1410
[ 430.546266][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.546286][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.546324][ T9844]
[ 430.547038][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.547078][ T9844] Bluetooth: hci4: failed to register connection device
[ 430.555016][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 430.555039][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.555065][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.555077][ T9844] Workqueue: hci2 hci_rx_work
[ 430.555108][ T9844] Call Trace:
[ 430.555116][ T9844]
[ 430.555124][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.555150][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.555173][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.555197][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.555222][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.555246][ T9844] kobject_add_internal+0x631/0xd10
[ 430.555276][ T9844] kobject_add+0x163/0x240
[ 430.555302][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.555328][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.555354][ T9844] device_add+0x408/0xb90
[ 430.555380][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.555407][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.555439][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.555468][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.555494][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.555521][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.555545][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.555568][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.555594][ T9844] hci_event_packet+0x659/0xef0
[ 430.555625][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.555646][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.555665][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.555690][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.555720][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.555745][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.555781][ T9844] ? process_one_work+0x8be/0x1630
[ 430.555804][ T9844] process_one_work+0x98b/0x1630
[ 430.555846][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.555867][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.555907][ T9844] worker_thread+0xb49/0x1140
[ 430.555938][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.555977][ T9844] kthread+0x388/0x470
[ 430.555996][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.556017][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.556036][ T9844] ret_from_fork+0x514/0xb70
[ 430.556060][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.556081][ T9844] ? __switch_to+0xc79/0x1410
[ 430.556109][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.556128][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.556167][ T9844]
[ 430.556418][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.556462][ T9844] Bluetooth: hci2: failed to register connection device
[ 430.717633][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 430.717658][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.717681][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.717692][ T9844] Workqueue: hci5 hci_rx_work
[ 430.717722][ T9844] Call Trace:
[ 430.717730][ T9844]
[ 430.717739][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.717765][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.717787][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.717811][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.717836][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.717861][ T9844] kobject_add_internal+0x631/0xd10
[ 430.717891][ T9844] kobject_add+0x163/0x240
[ 430.717916][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.717944][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.717973][ T9844] device_add+0x408/0xb90
[ 430.718000][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.718028][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.718059][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.718081][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.718107][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.718134][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.718157][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.718181][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.718206][ T9844] hci_event_packet+0x659/0xef0
[ 430.718238][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.718259][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.718278][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.718302][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.718332][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.718358][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.718393][ T9844] ? process_one_work+0x8be/0x1630
[ 430.718415][ T9844] process_one_work+0x98b/0x1630
[ 430.718464][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.718485][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.718524][ T9844] worker_thread+0xb49/0x1140
[ 430.718556][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.718599][ T9844] kthread+0x388/0x470
[ 430.718617][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.718639][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.718659][ T9844] ret_from_fork+0x514/0xb70
[ 430.718682][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.718702][ T9844] ? __switch_to+0xc79/0x1410
[ 430.718730][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.718750][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.718788][ T9844]
[ 430.718834][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.718868][ T9844] Bluetooth: hci5: failed to register connection device
[ 430.732061][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 430.732085][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.732107][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.732119][ T9844] Workqueue: hci2 hci_rx_work
[ 430.732152][ T9844] Call Trace:
[ 430.732160][ T9844]
[ 430.732168][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.732199][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.732221][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.732247][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.732271][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.732296][ T9844] kobject_add_internal+0x631/0xd10
[ 430.732326][ T9844] kobject_add+0x163/0x240
[ 430.732352][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.732379][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.732407][ T9844] device_add+0x408/0xb90
[ 430.732441][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.732469][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.732500][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.732522][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.732549][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.732576][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.732599][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.732622][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.732649][ T9844] hci_event_packet+0x659/0xef0
[ 430.732680][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.732701][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.732720][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.732744][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.732774][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.732799][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.732835][ T9844] ? process_one_work+0x8be/0x1630
[ 430.732857][ T9844] process_one_work+0x98b/0x1630
[ 430.732900][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.732920][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.732961][ T9844] worker_thread+0xb49/0x1140
[ 430.732992][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.733030][ T9844] kthread+0x388/0x470
[ 430.733049][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.733071][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.733090][ T9844] ret_from_fork+0x514/0xb70
[ 430.733113][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.733134][ T9844] ? __switch_to+0xc79/0x1410
[ 430.733163][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.733182][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.733216][ T9844]
[ 430.733261][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.733294][ T9844] Bluetooth: hci2: failed to register connection device
[ 430.739491][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 430.739516][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.739537][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.739549][ T9844] Workqueue: hci4 hci_rx_work
[ 430.739580][ T9844] Call Trace:
[ 430.739592][ T9844]
[ 430.739600][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.739626][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.739648][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.739673][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.739698][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.739722][ T9844] kobject_add_internal+0x631/0xd10
[ 430.739752][ T9844] kobject_add+0x163/0x240
[ 430.739778][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.739806][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.739835][ T9844] device_add+0x408/0xb90
[ 430.739862][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.739890][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.739922][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.739943][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.739969][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.739997][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.740021][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.740044][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.740070][ T9844] hci_event_packet+0x659/0xef0
[ 430.740101][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.740123][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.740141][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.740166][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.740197][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.740222][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.740256][ T9844] ? process_one_work+0x8be/0x1630
[ 430.740279][ T9844] process_one_work+0x98b/0x1630
[ 430.740322][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.740341][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.740381][ T9844] worker_thread+0xb49/0x1140
[ 430.740413][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.740458][ T9844] kthread+0x388/0x470
[ 430.740477][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.740499][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.740519][ T9844] ret_from_fork+0x514/0xb70
[ 430.740542][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.740562][ T9844] ? __switch_to+0xc79/0x1410
[ 430.740591][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.740610][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.740648][ T9844]
[ 430.740696][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.740726][ T9844] Bluetooth: hci4: failed to register connection device
[ 430.899338][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 430.899363][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.899386][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.899398][ T9844] Workqueue: hci5 hci_rx_work
[ 430.899431][ T9844] Call Trace:
[ 430.899438][ T9844]
[ 430.899454][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.899480][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.899503][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.899528][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.899552][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.899576][ T9844] kobject_add_internal+0x631/0xd10
[ 430.899605][ T9844] kobject_add+0x163/0x240
[ 430.899632][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.899659][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.899687][ T9844] device_add+0x408/0xb90
[ 430.899714][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.899742][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.899774][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.899796][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.899822][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.899849][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.899872][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.899895][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.899921][ T9844] hci_event_packet+0x659/0xef0
[ 430.899952][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.899974][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.899993][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.900018][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.900048][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.900073][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.900109][ T9844] ? process_one_work+0x8be/0x1630
[ 430.900132][ T9844] process_one_work+0x98b/0x1630
[ 430.900175][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.900195][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.900235][ T9844] worker_thread+0xb49/0x1140
[ 430.900267][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.900306][ T9844] kthread+0x388/0x470
[ 430.900324][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.900345][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.900365][ T9844] ret_from_fork+0x514/0xb70
[ 430.900389][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.900409][ T9844] ? __switch_to+0xc79/0x1410
[ 430.900438][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.900463][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.900502][ T9844]
[ 430.900531][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.900569][ T9844] Bluetooth: hci5: failed to register connection device
[ 430.913070][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 430.913095][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.913118][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.913130][ T9844] Workqueue: hci2 hci_rx_work
[ 430.913162][ T9844] Call Trace:
[ 430.913170][ T9844]
[ 430.913178][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.913204][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.913226][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.913260][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.913285][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.913309][ T9844] kobject_add_internal+0x631/0xd10
[ 430.913340][ T9844] kobject_add+0x163/0x240
[ 430.913365][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.913393][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.913422][ T9844] device_add+0x408/0xb90
[ 430.913455][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.913484][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.913516][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.913538][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.913564][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.913591][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.913614][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.913638][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.913664][ T9844] hci_event_packet+0x659/0xef0
[ 430.913695][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.913712][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.913729][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.913753][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.913784][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.913809][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.913844][ T9844] ? process_one_work+0x8be/0x1630
[ 430.913867][ T9844] process_one_work+0x98b/0x1630
[ 430.913909][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.913930][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.913973][ T9844] worker_thread+0xb49/0x1140
[ 430.914006][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.914044][ T9844] kthread+0x388/0x470
[ 430.914063][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.914084][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.914104][ T9844] ret_from_fork+0x514/0xb70
[ 430.914128][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.914146][ T9844] ? __switch_to+0xc79/0x1410
[ 430.914172][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.914193][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.914229][ T9844]
[ 430.914283][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.914320][ T9844] Bluetooth: hci2: failed to register connection device
[ 430.930603][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 430.930628][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 430.930650][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 430.930662][ T9844] Workqueue: hci4 hci_rx_work
[ 430.930693][ T9844] Call Trace:
[ 430.930701][ T9844]
[ 430.930709][ T9844] dump_stack_lvl+0xe8/0x150
[ 430.930735][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 430.930757][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.930781][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 430.930803][ T9844] ? rt_spin_unlock+0x160/0x200
[ 430.930828][ T9844] kobject_add_internal+0x631/0xd10
[ 430.930859][ T9844] kobject_add+0x163/0x240
[ 430.930885][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 430.930913][ T9844] ? get_device_parent+0x370/0x3a0
[ 430.930941][ T9844] device_add+0x408/0xb90
[ 430.930968][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 430.930996][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 430.931027][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 430.931049][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.931075][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 430.931104][ T9844] ? skb_pull_data+0xfb/0x200
[ 430.931126][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 430.931150][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 430.931175][ T9844] hci_event_packet+0x659/0xef0
[ 430.931207][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 430.931226][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 430.931246][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 430.931270][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 430.931300][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 430.931325][ T9844] hci_rx_work+0x3ee/0x1040
[ 430.931361][ T9844] ? process_one_work+0x8be/0x1630
[ 430.931383][ T9844] process_one_work+0x98b/0x1630
[ 430.931425][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 430.931452][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 430.931493][ T9844] worker_thread+0xb49/0x1140
[ 430.931525][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 430.931567][ T9844] kthread+0x388/0x470
[ 430.931586][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 430.931606][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.931626][ T9844] ret_from_fork+0x514/0xb70
[ 430.931650][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 430.931671][ T9844] ? __switch_to+0xc79/0x1410
[ 430.931700][ T9844] ? __pfx_kthread+0x10/0x10
[ 430.931719][ T9844] ret_from_fork_asm+0x1a/0x30
[ 430.931757][ T9844]
[ 430.931804][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 430.931839][ T9844] Bluetooth: hci4: failed to register connection device
[ 431.091164][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 431.091190][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.091212][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.091224][ T9844] Workqueue: hci5 hci_rx_work
[ 431.091255][ T9844] Call Trace:
[ 431.091264][ T9844]
[ 431.091272][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.091298][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.091320][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.091346][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.091371][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.091395][ T9844] kobject_add_internal+0x631/0xd10
[ 431.091425][ T9844] kobject_add+0x163/0x240
[ 431.091451][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.091485][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.091513][ T9844] device_add+0x408/0xb90
[ 431.091541][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.091569][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.091601][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.091623][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.091649][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.091677][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.091700][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.091723][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.091749][ T9844] hci_event_packet+0x659/0xef0
[ 431.091781][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.091801][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.091821][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.091846][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.091876][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.091901][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.091939][ T9844] ? process_one_work+0x8be/0x1630
[ 431.091962][ T9844] process_one_work+0x98b/0x1630
[ 431.092005][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.092026][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.092067][ T9844] worker_thread+0xb49/0x1140
[ 431.092098][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.092137][ T9844] kthread+0x388/0x470
[ 431.092157][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.092178][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.092198][ T9844] ret_from_fork+0x514/0xb70
[ 431.092221][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.092243][ T9844] ? __switch_to+0xc79/0x1410
[ 431.092271][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.092291][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.092329][ T9844]
[ 431.092374][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.092410][ T9844] Bluetooth: hci5: failed to register connection device
[ 431.108354][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 431.108379][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.108401][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.108413][ T9844] Workqueue: hci2 hci_rx_work
[ 431.108445][ T9844] Call Trace:
[ 431.108453][ T9844]
[ 431.108469][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.108495][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.108518][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.108546][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.108571][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.108595][ T9844] kobject_add_internal+0x631/0xd10
[ 431.108625][ T9844] kobject_add+0x163/0x240
[ 431.108651][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.108679][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.108708][ T9844] device_add+0x408/0xb90
[ 431.108735][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.108763][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.108795][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.108817][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.108843][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.108871][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.108894][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.108917][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.108942][ T9844] hci_event_packet+0x659/0xef0
[ 431.108974][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.108995][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.109014][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.109038][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.109069][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.109093][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.109127][ T9844] ? process_one_work+0x8be/0x1630
[ 431.109150][ T9844] process_one_work+0x98b/0x1630
[ 431.109192][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.109212][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.109252][ T9844] worker_thread+0xb49/0x1140
[ 431.109284][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.109323][ T9844] kthread+0x388/0x470
[ 431.109342][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.109362][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.109382][ T9844] ret_from_fork+0x514/0xb70
[ 431.109405][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.109426][ T9844] ? __switch_to+0xc79/0x1410
[ 431.109453][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.109479][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.109517][ T9844]
[ 431.109629][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.109664][ T9844] Bluetooth: hci2: failed to register connection device
[ 431.119597][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 431.119622][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.119644][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.119656][ T9844] Workqueue: hci4 hci_rx_work
[ 431.119690][ T9844] Call Trace:
[ 431.119698][ T9844]
[ 431.119707][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.119733][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.119756][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.119780][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.119804][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.119829][ T9844] kobject_add_internal+0x631/0xd10
[ 431.119859][ T9844] kobject_add+0x163/0x240
[ 431.119884][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.119913][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.119939][ T9844] device_add+0x408/0xb90
[ 431.119965][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.119994][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.120026][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.120047][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.120073][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.120100][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.120123][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.120146][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.120172][ T9844] hci_event_packet+0x659/0xef0
[ 431.120204][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.120224][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.120243][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.120267][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.120298][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.120323][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.120358][ T9844] ? process_one_work+0x8be/0x1630
[ 431.120381][ T9844] process_one_work+0x98b/0x1630
[ 431.120424][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.120445][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.120490][ T9844] worker_thread+0xb49/0x1140
[ 431.120527][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.120565][ T9844] kthread+0x388/0x470
[ 431.120584][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.120605][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.120625][ T9844] ret_from_fork+0x514/0xb70
[ 431.120649][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.120669][ T9844] ? __switch_to+0xc79/0x1410
[ 431.120698][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.120717][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.120755][ T9844]
[ 431.120855][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.120892][ T9844] Bluetooth: hci4: failed to register connection device
[ 431.302482][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 431.302507][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.302530][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.302541][ T9844] Workqueue: hci5 hci_rx_work
[ 431.302573][ T9844] Call Trace:
[ 431.302581][ T9844]
[ 431.302589][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.302619][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.302641][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.302665][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.302689][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.302714][ T9844] kobject_add_internal+0x631/0xd10
[ 431.302742][ T9844] kobject_add+0x163/0x240
[ 431.302769][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.302796][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.302824][ T9844] device_add+0x408/0xb90
[ 431.302852][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.302880][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.302911][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.302934][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.302960][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.302988][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.303011][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.303034][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.303060][ T9844] hci_event_packet+0x659/0xef0
[ 431.303092][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.303112][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.303131][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.303155][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.303186][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.303210][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.303246][ T9844] ? process_one_work+0x8be/0x1630
[ 431.303268][ T9844] process_one_work+0x98b/0x1630
[ 431.303311][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.303331][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.303371][ T9844] worker_thread+0xb49/0x1140
[ 431.303404][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.303447][ T9844] kthread+0x388/0x470
[ 431.303467][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.303488][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.303507][ T9844] ret_from_fork+0x514/0xb70
[ 431.303530][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.303551][ T9844] ? __switch_to+0xc79/0x1410
[ 431.303580][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.303599][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.303638][ T9844]
[ 431.303734][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.303768][ T9844] Bluetooth: hci5: failed to register connection device
[ 431.332205][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 431.332230][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.332253][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.332264][ T9844] Workqueue: hci4 hci_rx_work
[ 431.332300][ T9844] Call Trace:
[ 431.332308][ T9844]
[ 431.332316][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.332343][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.332365][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.332390][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.332415][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.332447][ T9844] kobject_add_internal+0x631/0xd10
[ 431.332477][ T9844] kobject_add+0x163/0x240
[ 431.332503][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.332531][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.332560][ T9844] device_add+0x408/0xb90
[ 431.332588][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.332615][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.332647][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.332669][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.332695][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.332722][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.332745][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.332769][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.332794][ T9844] hci_event_packet+0x659/0xef0
[ 431.332826][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.332847][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.332865][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.332890][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.332918][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.332943][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.332979][ T9844] ? process_one_work+0x8be/0x1630
[ 431.333001][ T9844] process_one_work+0x98b/0x1630
[ 431.333043][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.333064][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.333104][ T9844] worker_thread+0xb49/0x1140
[ 431.333136][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.333175][ T9844] kthread+0x388/0x470
[ 431.333194][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.333215][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.333234][ T9844] ret_from_fork+0x514/0xb70
[ 431.333258][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.333278][ T9844] ? __switch_to+0xc79/0x1410
[ 431.333307][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.333326][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.333364][ T9844]
[ 431.333661][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.333696][ T9844] Bluetooth: hci4: failed to register connection device
[ 431.368009][T13928] 8021q: adding VLAN 0 to HW filter on device batadv0
[ 431.439002][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 431.439027][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.439049][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.439061][ T9844] Workqueue: hci5 hci_rx_work
[ 431.439092][ T9844] Call Trace:
[ 431.439100][ T9844]
[ 431.439109][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.439139][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.439162][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.439187][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.439212][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.439236][ T9844] kobject_add_internal+0x631/0xd10
[ 431.439266][ T9844] kobject_add+0x163/0x240
[ 431.439291][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.439320][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.439348][ T9844] device_add+0x408/0xb90
[ 431.439375][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.439404][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.439442][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.439464][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.439490][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.439518][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.439540][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.439564][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.439590][ T9844] hci_event_packet+0x659/0xef0
[ 431.439621][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.439642][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.439661][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.439685][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.439716][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.439741][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.439776][ T9844] ? process_one_work+0x8be/0x1630
[ 431.439799][ T9844] process_one_work+0x98b/0x1630
[ 431.439842][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.439862][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.439902][ T9844] worker_thread+0xb49/0x1140
[ 431.439934][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.439973][ T9844] kthread+0x388/0x470
[ 431.439991][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.440012][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.440032][ T9844] ret_from_fork+0x514/0xb70
[ 431.440055][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.440076][ T9844] ? __switch_to+0xc79/0x1410
[ 431.440104][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.440124][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.440161][ T9844]
[ 431.440207][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.440241][ T9844] Bluetooth: hci5: failed to register connection device
[ 431.451495][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 431.451519][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.451541][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.451553][ T9844] Workqueue: hci4 hci_rx_work
[ 431.451589][ T9844] Call Trace:
[ 431.451596][ T9844]
[ 431.451605][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.451631][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.451652][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.451677][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.451702][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.451726][ T9844] kobject_add_internal+0x631/0xd10
[ 431.451756][ T9844] kobject_add+0x163/0x240
[ 431.451786][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.451814][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.451843][ T9844] device_add+0x408/0xb90
[ 431.451869][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.451898][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.451933][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.451955][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.451981][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.452012][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.452035][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.452059][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.452084][ T9844] hci_event_packet+0x659/0xef0
[ 431.452115][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.452136][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.452156][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.452180][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.452209][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.452233][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.452268][ T9844] ? process_one_work+0x8be/0x1630
[ 431.452290][ T9844] process_one_work+0x98b/0x1630
[ 431.452333][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.452354][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.452393][ T9844] worker_thread+0xb49/0x1140
[ 431.452431][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.452470][ T9844] kthread+0x388/0x470
[ 431.452489][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.452510][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.452533][ T9844] ret_from_fork+0x514/0xb70
[ 431.452557][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.452577][ T9844] ? __switch_to+0xc79/0x1410
[ 431.452606][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.452625][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.452664][ T9844]
[ 431.452710][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.452744][ T9844] Bluetooth: hci4: failed to register connection device
[ 431.571547][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 431.571579][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.571600][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.571613][ T9844] Workqueue: hci2 hci_rx_work
[ 431.571644][ T9844] Call Trace:
[ 431.571652][ T9844]
[ 431.571661][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.571687][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.571710][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.571735][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.571760][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.571784][ T9844] kobject_add_internal+0x631/0xd10
[ 431.571814][ T9844] kobject_add+0x163/0x240
[ 431.571840][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.571869][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.571897][ T9844] device_add+0x408/0xb90
[ 431.571925][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.571953][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.571984][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.572006][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.572032][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.572060][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.572083][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.572110][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.572135][ T9844] hci_event_packet+0x659/0xef0
[ 431.572167][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.572187][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.572205][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.572228][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.572258][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.572283][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.572318][ T9844] ? process_one_work+0x8be/0x1630
[ 431.572340][ T9844] process_one_work+0x98b/0x1630
[ 431.572384][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.572404][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.572445][ T9844] worker_thread+0xb49/0x1140
[ 431.572478][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.572517][ T9844] kthread+0x388/0x470
[ 431.572536][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.572567][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.572587][ T9844] ret_from_fork+0x514/0xb70
[ 431.572612][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.572632][ T9844] ? __switch_to+0xc79/0x1410
[ 431.572661][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.572681][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.572720][ T9844]
[ 431.572822][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.572862][ T9844] Bluetooth: hci2: failed to register connection device
[ 431.613016][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 431.613042][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.613063][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.613075][ T9844] Workqueue: hci4 hci_rx_work
[ 431.613104][ T9844] Call Trace:
[ 431.613112][ T9844]
[ 431.613120][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.613147][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.613169][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.613194][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.613219][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.613243][ T9844] kobject_add_internal+0x631/0xd10
[ 431.613273][ T9844] kobject_add+0x163/0x240
[ 431.613298][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.613327][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.613353][ T9844] device_add+0x408/0xb90
[ 431.613381][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.613409][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.613440][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.613462][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.613488][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.613516][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.613538][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.613561][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.613587][ T9844] hci_event_packet+0x659/0xef0
[ 431.613625][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.613646][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.613664][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.613689][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.613720][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.613745][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.613780][ T9844] ? process_one_work+0x8be/0x1630
[ 431.613802][ T9844] process_one_work+0x98b/0x1630
[ 431.613845][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.613865][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.613906][ T9844] worker_thread+0xb49/0x1140
[ 431.613938][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.613977][ T9844] kthread+0x388/0x470
[ 431.613996][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.614020][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.614040][ T9844] ret_from_fork+0x514/0xb70
[ 431.614064][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.614084][ T9844] ? __switch_to+0xc79/0x1410
[ 431.614113][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.614132][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.614170][ T9844]
[ 431.614216][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.614250][ T9844] Bluetooth: hci4: failed to register connection device
[ 431.681039][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0'
[ 431.681065][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.681086][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.681098][ T9844] Workqueue: hci5 hci_rx_work
[ 431.681129][ T9844] Call Trace:
[ 431.681137][ T9844]
[ 431.681146][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.681172][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.681196][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.681221][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.681245][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.681269][ T9844] kobject_add_internal+0x631/0xd10
[ 431.681305][ T9844] kobject_add+0x163/0x240
[ 431.681331][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.681360][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.681388][ T9844] device_add+0x408/0xb90
[ 431.681416][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.681444][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.681475][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.681497][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.681524][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.681550][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.681573][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.681597][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.681622][ T9844] hci_event_packet+0x659/0xef0
[ 431.681654][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.681675][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.681694][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.681718][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.681748][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.681773][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.681809][ T9844] ? process_one_work+0x8be/0x1630
[ 431.681830][ T9844] process_one_work+0x98b/0x1630
[ 431.681873][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.681893][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.681933][ T9844] worker_thread+0xb49/0x1140
[ 431.681965][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.682005][ T9844] kthread+0x388/0x470
[ 431.682024][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.682048][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.682068][ T9844] ret_from_fork+0x514/0xb70
[ 431.682092][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.682112][ T9844] ? __switch_to+0xc79/0x1410
[ 431.682140][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.682159][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.682198][ T9844]
[ 431.682247][ T9844] kobject: kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.682282][ T9844] Bluetooth: hci5: failed to register connection device
[ 431.739035][ T9844] Bluetooth: hci4: command 0x2016 tx timeout
[ 431.768462][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci2/hci2:0'
[ 431.768488][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.768511][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.768524][ T9844] Workqueue: hci2 hci_rx_work
[ 431.768562][ T9844] Call Trace:
[ 431.768570][ T9844]
[ 431.768578][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.768605][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.768629][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.768654][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.768702][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.768727][ T9844] kobject_add_internal+0x631/0xd10
[ 431.768757][ T9844] kobject_add+0x163/0x240
[ 431.768783][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.768811][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.768841][ T9844] device_add+0x408/0xb90
[ 431.768868][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.768896][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.768936][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.768959][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.768984][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.769012][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.769035][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.769059][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.769083][ T9844] hci_event_packet+0x659/0xef0
[ 431.769111][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.769131][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.769150][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.769173][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.769202][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.769228][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.769263][ T9844] ? process_one_work+0x8be/0x1630
[ 431.769286][ T9844] process_one_work+0x98b/0x1630
[ 431.769329][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.769349][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.769388][ T9844] worker_thread+0xb49/0x1140
[ 431.769421][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.769461][ T9844] kthread+0x388/0x470
[ 431.769479][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.769501][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.769521][ T9844] ret_from_fork+0x514/0xb70
[ 431.769552][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.769573][ T9844] ? __switch_to+0xc79/0x1410
[ 431.769601][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.769622][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.769672][ T9844]
[ 431.769701][ T9844] kobject: kobject_add_internal failed for hci2:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.769739][ T9844] Bluetooth: hci2: failed to register connection device
[ 431.818585][ T38] INFO: task syz-executor:6338 blocked for more than 143 seconds.
[ 431.818610][ T38] Not tainted syzkaller #0
[ 431.818620][ T38] Blocked by coredump.
[ 431.818626][ T38] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 431.818636][ T38] task:syz-executor state:D stack:21216 pid:6338 tgid:6338 ppid:1 task_flags:0x40054c flags:0x00080003
[ 431.818686][ T38] Call Trace:
[ 431.818694][ T38]
[ 431.818707][ T38] __schedule+0x16f9/0x5500
[ 431.818751][ T38] ? unwind_next_frame+0xa6/0x2550
[ 431.818784][ T38] ? look_up_lock_class+0x57/0x110
[ 431.818806][ T38] ? __pfx___schedule+0x10/0x10
[ 431.818840][ T38] ? schedule+0x90/0x360
[ 431.818866][ T38] schedule+0x164/0x360
[ 431.818893][ T38] schedule_timeout+0xc3/0x2c0
[ 431.818920][ T38] ? __pfx_schedule_timeout+0x10/0x10
[ 431.818946][ T38] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.818979][ T38] ? _raw_spin_unlock_irq+0x23/0x50
[ 431.819004][ T38] ? wait_for_completion+0x274/0x5e0
[ 431.819031][ T38] wait_for_completion+0x2cc/0x5e0
[ 431.819068][ T38] ? __pfx_wait_for_completion+0x10/0x10
[ 431.819099][ T38] ? __flush_work+0x104/0xda0
[ 431.819129][ T38] __flush_work+0x9e0/0xda0
[ 431.819153][ T38] ? __flush_work+0x104/0xda0
[ 431.819182][ T38] ? __pfx___flush_work+0x10/0x10
[ 431.819208][ T38] ? __pfx_wq_barrier_func+0x10/0x10
[ 431.819253][ T38] ? __cancel_work_sync+0x5c/0x110
[ 431.819281][ T38] __cancel_work_sync+0xbe/0x110
[ 431.819309][ T38] hci_cmd_sync_clear+0x30/0x230
[ 431.819342][ T38] hci_unregister_dev+0x194/0x5a0
[ 431.819365][ T38] vhci_release+0x155/0x1b0
[ 431.819385][ T38] ? __pfx_vhci_release+0x10/0x10
[ 431.819406][ T38] __fput+0x461/0xa70
[ 431.819438][ T38] task_work_run+0x1d9/0x270
[ 431.819462][ T38] ? __pfx_task_work_run+0x10/0x10
[ 431.819482][ T38] ? do_exit+0x70a/0x22c0
[ 431.819500][ T38] ? kmem_cache_free+0x187/0x6c0
[ 431.819525][ T38] ? put_net+0x191/0x260
[ 431.819546][ T38] ? do_exit+0x70a/0x22c0
[ 431.819574][ T38] do_exit+0x70f/0x22c0
[ 431.819596][ T38] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.819624][ T38] ? __pfx_do_exit+0x10/0x10
[ 431.819641][ T38] ? rt_mutex_slowunlock+0x4a7/0x8b0
[ 431.819664][ T38] ? reacquire_held_locks+0x104/0x190
[ 431.819684][ T38] ? rt_spin_lock+0x1e0/0x400
[ 431.819716][ T38] do_group_exit+0x21b/0x2d0
[ 431.819737][ T38] ? rt_spin_unlock+0x160/0x200
[ 431.819761][ T38] get_signal+0x1284/0x1330
[ 431.819804][ T38] arch_do_signal_or_restart+0xbc/0x840
[ 431.819827][ T38] ? __pfx_arch_do_signal_or_restart+0x10/0x10
[ 431.819853][ T38] ? ksys_read+0x202/0x270
[ 431.819886][ T38] exit_to_user_mode_loop+0x8c/0x4d0
[ 431.819927][ T38] ? rcu_is_watching+0x15/0xb0
[ 431.819949][ T38] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 431.827509][ T38] do_syscall_64+0x33e/0xf80
[ 431.827537][ T38] ? trace_irq_disable+0x3b/0x140
[ 431.827571][ T38] ? clear_bhb_loop+0x40/0x90
[ 431.827595][ T38] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 431.827615][ T38] RIP: 0033:0x7f2586a5b7ce
[ 431.827645][ T38] RSP: 002b:00007ffe7e4214d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
[ 431.827666][ T38] RAX: fffffffffffffe00 RBX: 000055557f997500 RCX: 00007f2586a5b7ce
[ 431.827682][ T38] RDX: 0000000000000030 RSI: 00007ffe7e4215d0 RDI: 00000000000000f9
[ 431.827695][ T38] RBP: 00007ffe7e42157c R08: 0000000000000000 R09: 0000000000000000
[ 431.827708][ T38] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000258
[ 431.827720][ T38] R13: 00000000000927c0 R14: 0000000000045cad R15: 00007ffe7e4215d0
[ 431.827748][ T38]
[ 431.827806][ T38]
[ 431.827806][ T38] Showing all locks held in the system:
[ 431.827815][ T38] 4 locks held by pr/legacy/17:
[ 431.827827][ T38] #0: ffffffff8e1ba4e0 (console_lock){+.+.}-{0:0}, at: legacy_kthread_func+0x1a3/0x250
[ 431.827879][ T38] #1: ffffffff8e0a1dd8 (console_srcu){....}-{0:0}, at: console_flush_one_record+0xfa/0xb90
[ 431.827925][ T38] #2: ffffffff99dc6bf8 (&port_lock_key){+.+.}-{3:3}, at: serial8250_console_write+0x179/0x1b90
[ 431.827975][ T38] #3: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 431.828023][ T38] 1 lock held by khungtaskd/38:
[ 431.828034][ T38] #0: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
[ 431.828078][ T38] 3 locks held by kworker/u9:0/61:
[ 431.828090][ T38] #0: ffff888034799938 ((wq_completion)hci1){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.828137][ T38] #1: ffffc9000127fc40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.828216][ T38] #2: ffff888042cb0f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400
[ 431.828273][ T38] 3 locks held by kworker/u8:8/1193:
[ 431.828283][ T38] #0: ffff8880310eb938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.828329][ T38] #1: ffffc9000618fc40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.828374][ T38] #2: ffffffff8f592638 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x124/0x1680
[ 431.828429][ T38] 3 locks held by kworker/u8:31/3916:
[ 431.828440][ T38] #0: ffff88813fe4c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.828487][ T38] #1: ffffc9000ee17c40 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.828532][ T38] #2: ffffffff8f592638 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0xe/0x60
[ 431.828581][ T38] 3 locks held by kworker/u9:1/4944:
[ 431.828592][ T38] #0: ffff8880377c0938 ((wq_completion)hci2){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.828638][ T38] #1: ffffc900107a7c40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.828684][ T38] #2: ffff88803cda4f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400
[ 431.828733][ T38] 1 lock held by udevd/4995:
[ 431.828744][ T38] #0: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xa6/0x2550
[ 431.828792][ T38] 2 locks held by getty/5385:
[ 431.828802][ T38] #0: ffff8880368d30a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
[ 431.828850][ T38] #1: ffffc90003cbe2e0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x462/0x13a0
[ 431.828894][ T38] 3 locks held by kworker/u9:2/5683:
[ 431.828905][ T38] #0: ffff88801fec0138 ((wq_completion)hci3){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.828950][ T38] #1: ffffc90004967c40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.828996][ T38] #2: ffff888044a3cf80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400
[ 431.831314][ T9844] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci4/hci4:0'
[ 431.831337][ T9844] CPU: 1 UID: 0 PID: 9844 Comm: kworker/u9:8 Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.831358][ T9844] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.831370][ T9844] Workqueue: hci4 hci_rx_work
[ 431.831398][ T9844] Call Trace:
[ 431.831405][ T9844]
[ 431.831413][ T9844] dump_stack_lvl+0xe8/0x150
[ 431.831438][ T9844] sysfs_create_dir_ns+0x271/0x2a0
[ 431.831460][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.831483][ T9844] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 431.831508][ T9844] ? rt_spin_unlock+0x160/0x200
[ 431.831533][ T9844] kobject_add_internal+0x631/0xd10
[ 431.831572][ T9844] kobject_add+0x163/0x240
[ 431.831598][ T9844] ? __pfx_kobject_add+0x10/0x10
[ 431.831627][ T9844] ? get_device_parent+0x370/0x3a0
[ 431.831655][ T9844] device_add+0x408/0xb90
[ 431.831683][ T9844] hci_conn_add_sysfs+0xd5/0x210
[ 431.831712][ T9844] le_conn_complete_evt+0x10e6/0x16b0
[ 431.831744][ T9844] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 431.831767][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.831793][ T9844] ? lockdep_hardirqs_on+0x7a/0x110
[ 431.831822][ T9844] ? skb_pull_data+0xfb/0x200
[ 431.831845][ T9844] hci_le_enh_conn_complete_evt+0x189/0x490
[ 431.831868][ T9844] ? __pfx_hci_le_enh_conn_complete_evt+0x10/0x10
[ 431.831895][ T9844] hci_event_packet+0x659/0xef0
[ 431.831927][ T9844] ? __pfx_rt_mutex_slowunlock+0x10/0x10
[ 431.831949][ T9844] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 431.831968][ T9844] ? __pfx_hci_event_packet+0x10/0x10
[ 431.831993][ T9844] ? rt_spin_unlock+0x14f/0x200
[ 431.832025][ T9844] ? hci_send_to_monitor+0xe2/0x590
[ 431.832051][ T9844] hci_rx_work+0x3ee/0x1040
[ 431.832087][ T9844] ? process_one_work+0x8be/0x1630
[ 431.832109][ T9844] process_one_work+0x98b/0x1630
[ 431.832153][ T9844] ? __pfx_process_one_work+0x10/0x10
[ 431.832175][ T9844] ? do_raw_spin_lock+0x12b/0x2f0
[ 431.832215][ T9844] worker_thread+0xb49/0x1140
[ 431.832248][ T9844] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.832288][ T9844] kthread+0x388/0x470
[ 431.832308][ T9844] ? __pfx_worker_thread+0x10/0x10
[ 431.832330][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.832350][ T9844] ret_from_fork+0x514/0xb70
[ 431.832378][ T9844] ? __pfx_ret_from_fork+0x10/0x10
[ 431.832399][ T9844] ? __switch_to+0xc79/0x1410
[ 431.832428][ T9844] ? __pfx_kthread+0x10/0x10
[ 431.832448][ T9844] ret_from_fork_asm+0x1a/0x30
[ 431.832487][ T9844]
[ 431.832536][ T9844] kobject: kobject_add_internal failed for hci4:0 with -EEXIST, don't try to register things with the same name in the same directory.
[ 431.832578][ T9844] Bluetooth: hci4: failed to register connection device
[ 431.849312][ T38] 3 locks held by kworker/u9:4/6343:
[ 431.849329][ T38] #0: ffff88802bf8b138 ((wq_completion)hci0){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.849384][ T38] #1: ffffc90003a57c40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.849432][ T38] #2: ffff888028e5cf80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400
[ 431.849482][ T38] 2 locks held by syz-executor/6347:
[ 431.849493][ T38] #0: ffff8880568e9038 (&sb->s_type->i_mutex_key#13){+.+.}-{4:4}, at: __sock_release+0x89/0x250
[ 431.849540][ T38] #1: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: unwind_next_frame+0xa6/0x2550
[ 431.849596][ T38] 1 lock held by udevd/6463:
[ 431.849607][ T38] #0: ffffffff8e8ea4f8 (tomoyo_ss){.+.+}-{0:0}, at: tomoyo_path_perm+0x251/0x560
[ 431.849657][ T38] 3 locks held by kworker/u9:5/7173:
[ 431.849668][ T38] #0: ffff88803fecf938 ((wq_completion)hci5){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.849713][ T38] #1: ffffc90004647c40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.849760][ T38] #2: ffff8880388ecf80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400
[ 431.849807][ T38] 3 locks held by kworker/u9:7/7206:
[ 431.849819][ T38] #0: ffff88803570b938 ((wq_completion)hci4){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.849864][ T38] #1: ffffc90004757c40 ((work_completion)(&hdev->cmd_sync_work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.849910][ T38] #2: ffff8880567d0f80 (&hdev->req_lock){+.+.}-{4:4}, at: hci_cmd_sync_work+0x1d3/0x400
[ 431.849961][ T38] 1 lock held by syz-executor/13928:
[ 431.849972][ T38] #0: ffffffff8f592638 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x404/0x1ad0
[ 431.850021][ T38] 3 locks held by kworker/u8:2/14343:
[ 431.850032][ T38] #0: ffff8880310eb938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.850078][ T38] #1: ffffc900117b7c40 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.850125][ T38] #2: ffffffff8f592638 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_dad_work+0x124/0x1680
[ 431.850167][ T38] 2 locks held by kworker/u8:5/14344:
[ 431.850178][ T38] #0: ffff88813fe4c138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x897/0x1630
[ 431.850224][ T38] #1: ffffc900117c7c40 (connector_reaper_work){+.+.}-{0:0}, at: process_one_work+0x8be/0x1630
[ 431.850271][ T38] 4 locks held by syz.1.4178/15293:
[ 431.850282][ T38] #0: ffff8880378890b0 (&mm->mmap_lock){++++}-{4:4}, at: exit_mmap+0x194/0x9e0
[ 431.850328][ T38] #1: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x29/0x200
[ 431.850386][ T38] #2: ffff88802bd4a058 (ptlock_ptr(ptdesc)#2){+.+.}-{3:3}, at: pte_offset_map_lock+0x13d/0x210
[ 431.850435][ T38] #3: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: rt_spin_lock+0x1e0/0x400
[ 431.850481][ T38] 3 locks held by syz.2.4179/15295:
[ 431.850492][ T38] #0: ffff88803f124e48 (vm_lock){++++}-{0:0}, at: lock_vma_under_rcu+0x1d1/0x500
[ 431.850540][ T38] #1: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: lruvec_stat_mod_folio+0x6e/0x3e0
[ 431.850605][ T38] #2: ffffffff8e1c8240 (rcu_read_lock){....}-{1:3}, at: mod_memcg_lruvec_state+0xd5/0x270
[ 431.850649][ T38]
[ 431.850654][ T38] =============================================
[ 431.850654][ T38]
[ 431.850680][ T38] NMI backtrace for cpu 1
[ 431.850695][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.850715][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.850727][ T38] Call Trace:
[ 431.850735][ T38]
[ 431.850743][ T38] dump_stack_lvl+0xe8/0x150
[ 431.850767][ T38] nmi_cpu_backtrace+0x274/0x2d0
[ 431.850794][ T38] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10
[ 431.850816][ T38] nmi_trigger_cpumask_backtrace+0x17a/0x300
[ 431.850842][ T38] sys_info+0x135/0x170
[ 431.850862][ T38] watchdog+0xfd3/0x1030
[ 431.850892][ T38] ? watchdog+0x1c9/0x1030
[ 431.850920][ T38] kthread+0x388/0x470
[ 431.850940][ T38] ? __pfx_watchdog+0x10/0x10
[ 431.850961][ T38] ? __pfx_kthread+0x10/0x10
[ 431.850981][ T38] ret_from_fork+0x514/0xb70
[ 431.851004][ T38] ? __pfx_ret_from_fork+0x10/0x10
[ 431.851024][ T38] ? __switch_to+0xc79/0x1410
[ 431.851052][ T38] ? __pfx_kthread+0x10/0x10
[ 431.851071][ T38] ret_from_fork_asm+0x1a/0x30
[ 431.851106][ T38]
[ 431.851136][ T38] Sending NMI from CPU 1 to CPUs 0:
[ 431.851164][ C0] NMI backtrace for cpu 0
[ 431.851178][ C0] CPU: 0 UID: 0 PID: 17 Comm: pr/legacy Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.851196][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.851206][ C0] RIP: 0010:io_serial_in+0x77/0xc0
[ 431.851225][ C0] Code: e8 5e fa 7c fc 44 89 f9 d3 e3 49 83 ee 80 4c 89 f0 48 c1 e8 03 42 80 3c 20 00 74 08 4c 89 f7 e8 3f 94 e6 fc 41 03 1e 89 da ec <0f> b6 c0 5b 41 5c 41 5e 41 5f c3 cc cc cc cc cc 44 89 f9 80 e1 07
[ 431.851239][ C0] RSP: 0018:ffffc900001679d0 EFLAGS: 00000202
[ 431.851254][ C0] RAX: 1ffffffff33b8d00 RBX: 00000000000003fd RCX: 0000000000000000
[ 431.851266][ C0] RDX: 00000000000003fd RSI: 0000000000000000 RDI: 0000000000000000
[ 431.851276][ C0] RBP: ffffffff99dc6eb0 R08: 0000000000000000 R09: 0000000000000000
[ 431.851286][ C0] R10: dffffc0000000000 R11: ffffffff85482160 R12: dffffc0000000000
[ 431.851299][ C0] R13: 0000000000000000 R14: ffffffff99dc6c20 R15: 0000000000000000
[ 431.851320][ C0] FS: 0000000000000000(0000) GS:ffff888125cc7000(0000) knlGS:0000000000000000
[ 431.851333][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 431.851344][ C0] CR2: 00007f83823b94ec CR3: 000000000dfb6000 CR4: 00000000003526f0
[ 431.851358][ C0] Call Trace:
[ 431.851365][ C0]
[ 431.851373][ C0] wait_for_lsr+0x1aa/0x2f0
[ 431.851399][ C0] serial8250_console_write+0x120d/0x1b90
[ 431.851428][ C0] ? __pfx_serial8250_console_write+0x10/0x10
[ 431.851450][ C0] ? console_flush_one_record+0xfa/0xb90
[ 431.851475][ C0] ? console_flush_one_record+0x48f/0xb90
[ 431.851497][ C0] console_flush_one_record+0x68b/0xb90
[ 431.851522][ C0] ? console_flush_one_record+0xfa/0xb90
[ 431.851545][ C0] ? __pfx_console_flush_one_record+0x10/0x10
[ 431.851568][ C0] ? _raw_spin_unlock_irqrestore+0x30/0x80
[ 431.851593][ C0] legacy_kthread_func+0x1b6/0x250
[ 431.851615][ C0] ? __pfx_legacy_kthread_func+0x10/0x10
[ 431.851636][ C0] ? __pfx_autoremove_wake_function+0x10/0x10
[ 431.851659][ C0] ? __kthread_parkme+0x7a/0x1f0
[ 431.851683][ C0] kthread+0x388/0x470
[ 431.851698][ C0] ? __pfx_legacy_kthread_func+0x10/0x10
[ 431.851718][ C0] ? __pfx_kthread+0x10/0x10
[ 431.851733][ C0] ret_from_fork+0x514/0xb70
[ 431.851751][ C0] ? __pfx_ret_from_fork+0x10/0x10
[ 431.851768][ C0] ? __switch_to+0xc79/0x1410
[ 431.851790][ C0] ? __pfx_kthread+0x10/0x10
[ 431.851805][ C0] ret_from_fork_asm+0x1a/0x30
[ 431.851831][ C0]
[ 431.870860][ T38] Kernel panic - not syncing: hung_task: blocked tasks
[ 431.870882][ T38] CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT_{RT,(full)}
[ 431.870906][ T38] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
[ 431.870918][ T38] Call Trace:
[ 431.870926][ T38]
[ 431.870935][ T38] vpanic+0x56c/0xa60
[ 431.870964][ T38] ? __pfx___schedule+0x10/0x10
[ 431.870991][ T38] ? __pfx_vpanic+0x10/0x10
[ 431.871023][ T38] panic+0xc5/0xd0
[ 431.871047][ T38] ? __pfx_panic+0x10/0x10
[ 431.871072][ T38] ? preempt_schedule_thunk+0x16/0x40
[ 431.871102][ T38] ? nmi_trigger_cpumask_backtrace+0x2bb/0x300
[ 431.871130][ T38] watchdog+0x102c/0x1030
[ 431.871161][ T38] ? watchdog+0x1c9/0x1030
[ 431.871189][ T38] kthread+0x388/0x470
[ 431.871208][ T38] ? __pfx_watchdog+0x10/0x10
[ 431.871230][ T38] ? __pfx_kthread+0x10/0x10
[ 431.871249][ T38] ret_from_fork+0x514/0xb70
[ 431.871273][ T38] ? __pfx_ret_from_fork+0x10/0x10
[ 431.871293][ T38] ? __switch_to+0xc79/0x1410
[ 431.871320][ T38] ? __pfx_kthread+0x10/0x10
[ 431.871338][ T38] ret_from_fork_asm+0x1a/0x30
[ 431.871371][ T38]
[ 431.871945][ T38] Kernel Offset: disabled