9.981659] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 399.986253] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 399.991344] ? trace_hardirqs_on+0x28/0x190 [ 399.995660] ? kasan_check_read+0x11/0x20 [ 399.999800] hci_rx_work+0x385/0xa70 [ 400.003786] process_one_work+0x7b9/0x15a0 [ 400.008110] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 400.013395] ? lock_acquire+0x180/0x3a0 [ 400.017710] ? do_raw_spin_lock+0x1a5/0x240 [ 400.022289] worker_thread+0x85/0xb60 [ 400.026194] ? __kthread_parkme+0x37/0x1c0 [ 400.030693] kthread+0x347/0x410 [ 400.034322] ? process_one_work+0x15a0/0x15a0 [ 400.039131] ? kthread_park+0x100/0x100 [ 400.043560] ret_from_fork+0x24/0x30 [ 400.049178] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 400.062704] Bluetooth: hci5: failed to register connection device [ 400.070675] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 400.079712] CPU: 1 PID: 8495 Comm: kworker/u5:3 Not tainted 4.19.196-syzkaller #0 [ 400.087852] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 400.097408] Workqueue: hci5 hci_rx_work [ 400.101491] Call Trace: [ 400.104107] dump_stack+0x17c/0x226 [ 400.107918] sysfs_warn_dup.cold.0+0x17/0x26 [ 400.112590] sysfs_create_dir_ns+0x1c2/0x270 [ 400.117049] ? sysfs_create_mount_point+0x80/0x80 [ 400.121988] ? lock_downgrade+0x860/0x860 [ 400.126236] ? do_raw_spin_unlock+0x177/0x260 [ 400.130899] kobject_add_internal+0x257/0x8d0 [ 400.135740] kobject_add+0x10f/0x170 [ 400.140003] ? kobject_add_internal+0x8d0/0x8d0 [ 400.144678] ? __lockdep_init_map+0x105/0x590 [ 400.149351] ? get_device+0x20/0x20 [ 400.153217] ? lockdep_init_map+0x9/0x10 [ 400.157649] ? __raw_spin_lock_init+0x2d/0x100 [ 400.162495] device_add+0x33e/0x16b0 [ 400.166503] ? _dev_warn+0x100/0x100 [ 400.170420] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 400.176864] ? lock_downgrade+0x860/0x860 [ 400.181795] hci_conn_add_sysfs+0x8e/0x160 [ 400.186215] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 400.192179] hci_event_packet+0x1a08/0x68e0 [ 400.197048] ? mark_held_locks+0x130/0x130 [ 400.201397] ? __lock_acquire+0x764/0x47c0 [ 400.206086] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 400.212071] ? mark_held_locks+0xc7/0x130 [ 400.216484] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.221787] ? skb_dequeue+0x14d/0x1f0 [ 400.225676] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 400.230385] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.235491] ? trace_hardirqs_on+0x28/0x190 [ 400.239806] ? kasan_check_read+0x11/0x20 [ 400.244212] hci_rx_work+0x385/0xa70 [ 400.247923] process_one_work+0x7b9/0x15a0 [ 400.252569] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 400.257382] ? lock_acquire+0x180/0x3a0 [ 400.261365] ? do_raw_spin_lock+0x1a5/0x240 [ 400.265773] worker_thread+0x85/0xb60 [ 400.269570] ? __kthread_parkme+0x37/0x1c0 [ 400.274247] kthread+0x347/0x410 [ 400.277709] ? process_one_work+0x15a0/0x15a0 [ 400.282251] ? kthread_park+0x100/0x100 [ 400.286504] ret_from_fork+0x24/0x30 [ 400.292409] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 400.305187] Bluetooth: hci5: failed to register connection device [ 400.327933] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 400.336713] CPU: 1 PID: 8495 Comm: kworker/u5:3 Not tainted 4.19.196-syzkaller #0 [ 400.344698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 400.354172] Workqueue: hci5 hci_rx_work [ 400.358150] Call Trace: [ 400.360874] dump_stack+0x17c/0x226 [ 400.364772] sysfs_warn_dup.cold.0+0x17/0x26 [ 400.369325] sysfs_create_dir_ns+0x1c2/0x270 [ 400.373740] ? sysfs_create_mount_point+0x80/0x80 [ 400.378853] ? lock_downgrade+0x860/0x860 [ 400.383191] ? do_raw_spin_unlock+0x177/0x260 [ 400.387855] kobject_add_internal+0x257/0x8d0 [ 400.392363] kobject_add+0x10f/0x170 [ 400.396095] ? kobject_add_internal+0x8d0/0x8d0 [ 400.400766] ? __lockdep_init_map+0x105/0x590 [ 400.405358] ? get_device+0x20/0x20 [ 400.409164] ? lockdep_init_map+0x9/0x10 [ 400.413236] ? __raw_spin_lock_init+0x2d/0x100 [ 400.417835] device_add+0x33e/0x16b0 [ 400.421660] ? _dev_warn+0x100/0x100 [ 400.425468] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 400.432333] ? lock_downgrade+0x860/0x860 [ 400.436659] hci_conn_add_sysfs+0x8e/0x160 [ 400.440987] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 400.446975] hci_event_packet+0x1a08/0x68e0 [ 400.451489] ? mark_held_locks+0x130/0x130 [ 400.455739] ? __lock_acquire+0x764/0x47c0 [ 400.460070] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 400.466081] ? mark_held_locks+0xc7/0x130 [ 400.470292] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.475491] ? skb_dequeue+0x14d/0x1f0 [ 400.479499] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 400.484447] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.489735] ? trace_hardirqs_on+0x28/0x190 [ 400.494176] ? kasan_check_read+0x11/0x20 [ 400.498392] hci_rx_work+0x385/0xa70 [ 400.502144] process_one_work+0x7b9/0x15a0 [ 400.506569] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 400.511277] ? lock_acquire+0x180/0x3a0 [ 400.515351] ? kasan_check_write+0x14/0x20 [ 400.519677] ? do_raw_spin_lock+0xd0/0x240 [ 400.524204] worker_thread+0x85/0xb60 [ 400.528012] ? __kthread_parkme+0x37/0x1c0 [ 400.532628] kthread+0x347/0x410 [ 400.536028] ? process_one_work+0x15a0/0x15a0 [ 400.540885] ? kthread_park+0x100/0x100 [ 400.544976] ret_from_fork+0x24/0x30 [ 400.551047] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 400.563636] Bluetooth: hci5: failed to register connection device [ 400.570007] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 400.579722] CPU: 1 PID: 8495 Comm: kworker/u5:3 Not tainted 4.19.196-syzkaller #0 [ 400.587538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 400.597255] Workqueue: hci5 hci_rx_work [ 400.601255] Call Trace: [ 400.604040] dump_stack+0x17c/0x226 [ 400.608052] sysfs_warn_dup.cold.0+0x17/0x26 [ 400.612582] sysfs_create_dir_ns+0x1c2/0x270 [ 400.616995] ? sysfs_create_mount_point+0x80/0x80 [ 400.621842] ? lock_downgrade+0x860/0x860 [ 400.626007] ? do_raw_spin_unlock+0x177/0x260 [ 400.631033] kobject_add_internal+0x257/0x8d0 [ 400.635724] kobject_add+0x10f/0x170 [ 400.639888] ? kobject_add_internal+0x8d0/0x8d0 [ 400.644636] ? __lockdep_init_map+0x105/0x590 [ 400.649227] ? get_device+0x20/0x20 [ 400.652865] ? lockdep_init_map+0x9/0x10 [ 400.657104] ? __raw_spin_lock_init+0x2d/0x100 [ 400.661768] device_add+0x33e/0x16b0 [ 400.665478] ? _dev_warn+0x100/0x100 [ 400.669175] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 400.675663] ? lock_downgrade+0x860/0x860 [ 400.679843] hci_conn_add_sysfs+0x8e/0x160 [ 400.684074] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 400.689868] hci_event_packet+0x1a08/0x68e0 [ 400.694273] ? mark_held_locks+0x130/0x130 [ 400.698514] ? __lock_acquire+0x764/0x47c0 [ 400.702773] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 400.708606] ? mark_held_locks+0xc7/0x130 [ 400.713029] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.718580] ? skb_dequeue+0x14d/0x1f0 [ 400.723216] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 400.728541] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.733908] ? trace_hardirqs_on+0x28/0x190 [ 400.738625] ? kasan_check_read+0x11/0x20 [ 400.743054] hci_rx_work+0x385/0xa70 [ 400.747493] process_one_work+0x7b9/0x15a0 [ 400.751807] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 400.756719] ? lock_acquire+0x180/0x3a0 [ 400.760980] ? kasan_check_write+0x14/0x20 [ 400.765440] ? do_raw_spin_lock+0xd0/0x240 [ 400.770030] worker_thread+0x85/0xb60 [ 400.773840] ? __kthread_parkme+0x37/0x1c0 [ 400.778079] kthread+0x347/0x410 [ 400.781435] ? process_one_work+0x15a0/0x15a0 [ 400.787078] ? kthread_park+0x100/0x100 [ 400.791046] ret_from_fork+0x24/0x30 [ 400.796909] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 400.809639] Bluetooth: hci5: failed to register connection device [ 400.825792] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 400.834692] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 400.842580] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 400.852045] Workqueue: hci5 hci_rx_work [ 400.856461] Call Trace: [ 400.859053] dump_stack+0x17c/0x226 [ 400.862689] sysfs_warn_dup.cold.0+0x17/0x26 [ 400.867354] sysfs_create_dir_ns+0x1c2/0x270 [ 400.871764] ? sysfs_create_mount_point+0x80/0x80 [ 400.876698] ? lock_downgrade+0x860/0x860 [ 400.880852] ? do_raw_spin_unlock+0x177/0x260 [ 400.885518] kobject_add_internal+0x257/0x8d0 [ 400.890002] kobject_add+0x10f/0x170 [ 400.893704] ? kobject_add_internal+0x8d0/0x8d0 [ 400.898439] ? __lockdep_init_map+0x105/0x590 [ 400.902946] ? get_device+0x20/0x20 [ 400.906544] ? lockdep_init_map+0x9/0x10 [ 400.910605] ? __raw_spin_lock_init+0x2d/0x100 [ 400.915526] device_add+0x33e/0x16b0 [ 400.919318] ? _dev_warn+0x100/0x100 [ 400.923094] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 400.929145] ? lock_downgrade+0x860/0x860 [ 400.933356] hci_conn_add_sysfs+0x8e/0x160 [ 400.937573] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 400.943349] hci_event_packet+0x1a08/0x68e0 [ 400.947654] ? mark_held_locks+0x130/0x130 [ 400.951957] ? __lock_acquire+0x764/0x47c0 [ 400.956184] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 400.961967] ? mark_held_locks+0xc7/0x130 [ 400.966099] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.971181] ? skb_dequeue+0x14d/0x1f0 [ 400.975229] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 400.980311] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 400.985578] ? trace_hardirqs_on+0x28/0x190 [ 400.989878] ? kasan_check_read+0x11/0x20 [ 400.994001] hci_rx_work+0x385/0xa70 [ 400.997703] process_one_work+0x7b9/0x15a0 [ 401.001914] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 401.006568] ? lock_acquire+0x180/0x3a0 [ 401.010517] ? kasan_check_write+0x14/0x20 [ 401.014731] ? do_raw_spin_lock+0xd0/0x240 [ 401.018949] worker_thread+0x85/0xb60 [ 401.022723] ? __kthread_parkme+0x37/0x1c0 [ 401.027132] kthread+0x347/0x410 [ 401.030471] ? process_one_work+0x15a0/0x15a0 [ 401.034948] ? kthread_park+0x100/0x100 [ 401.038910] ret_from_fork+0x24/0x30 [ 401.056726] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 401.069328] Bluetooth: hci5: failed to register connection device [ 401.076301] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 401.085055] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 401.092677] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 401.102127] Workqueue: hci5 hci_rx_work [ 401.106098] Call Trace: [ 401.108708] dump_stack+0x17c/0x226 [ 401.112603] sysfs_warn_dup.cold.0+0x17/0x26 [ 401.117107] sysfs_create_dir_ns+0x1c2/0x270 [ 401.121877] ? sysfs_create_mount_point+0x80/0x80 [ 401.126727] ? lock_downgrade+0x860/0x860 [ 401.130909] ? do_raw_spin_unlock+0x177/0x260 [ 401.135845] kobject_add_internal+0x257/0x8d0 [ 401.140349] kobject_add+0x10f/0x170 [ 401.144062] ? kobject_add_internal+0x8d0/0x8d0 [ 401.148861] ? __lockdep_init_map+0x105/0x590 [ 401.153465] ? get_device+0x20/0x20 [ 401.157083] ? lockdep_init_map+0x9/0x10 [ 401.161131] ? __raw_spin_lock_init+0x2d/0x100 [ 401.166042] device_add+0x33e/0x16b0 [ 401.169852] ? _dev_warn+0x100/0x100 [ 401.173703] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 401.179845] ? lock_downgrade+0x860/0x860 [ 401.184138] hci_conn_add_sysfs+0x8e/0x160 [ 401.188539] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 401.194525] hci_event_packet+0x1a08/0x68e0 [ 401.199322] ? mark_held_locks+0x130/0x130 [ 401.203878] ? __lock_acquire+0x764/0x47c0 [ 401.208243] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 401.214679] ? mark_held_locks+0xc7/0x130 [ 401.220466] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.225745] ? skb_dequeue+0x14d/0x1f0 [ 401.229825] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 401.234673] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.240026] ? trace_hardirqs_on+0x28/0x190 [ 401.244344] ? kasan_check_read+0x11/0x20 [ 401.248583] hci_rx_work+0x385/0xa70 [ 401.252479] process_one_work+0x7b9/0x15a0 [ 401.256979] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 401.261649] ? lock_acquire+0x180/0x3a0 [ 401.265889] ? kasan_check_write+0x14/0x20 [ 401.270130] ? do_raw_spin_lock+0xd0/0x240 [ 401.274787] worker_thread+0x85/0xb60 [ 401.278892] ? __kthread_parkme+0x37/0x1c0 [ 401.283144] kthread+0x347/0x410 [ 401.286607] ? process_one_work+0x15a0/0x15a0 [ 401.291479] ? kthread_park+0x100/0x100 [ 401.295704] ret_from_fork+0x24/0x30 [ 401.305277] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 401.318044] Bluetooth: hci5: failed to register connection device [ 401.325783] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 401.335026] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 401.342818] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 401.352287] Workqueue: hci5 hci_rx_work [ 401.356779] Call Trace: [ 401.359417] dump_stack+0x17c/0x226 [ 401.363046] sysfs_warn_dup.cold.0+0x17/0x26 [ 401.367619] sysfs_create_dir_ns+0x1c2/0x270 [ 401.372619] ? sysfs_create_mount_point+0x80/0x80 [ 401.377551] ? lock_downgrade+0x860/0x860 [ 401.383272] ? do_raw_spin_unlock+0x177/0x260 [ 401.387764] kobject_add_internal+0x257/0x8d0 [ 401.392423] kobject_add+0x10f/0x170 [ 401.396211] ? kobject_add_internal+0x8d0/0x8d0 [ 401.401182] ? __lockdep_init_map+0x105/0x590 [ 401.405682] ? get_device+0x20/0x20 [ 401.409382] ? lockdep_init_map+0x9/0x10 [ 401.413681] ? __raw_spin_lock_init+0x2d/0x100 [ 401.418344] device_add+0x33e/0x16b0 [ 401.422041] ? _dev_warn+0x100/0x100 [ 401.425735] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 401.431685] ? lock_downgrade+0x860/0x860 [ 401.435922] hci_conn_add_sysfs+0x8e/0x160 [ 401.440159] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 401.445961] hci_event_packet+0x1a08/0x68e0 [ 401.450397] ? mark_held_locks+0x130/0x130 [ 401.454647] ? __lock_acquire+0x764/0x47c0 [ 401.458875] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 401.464938] ? mark_held_locks+0xc7/0x130 [ 401.469278] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.474731] ? skb_dequeue+0x14d/0x1f0 [ 401.478632] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 401.483404] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.488671] ? trace_hardirqs_on+0x28/0x190 [ 401.492984] ? kasan_check_read+0x11/0x20 [ 401.497125] hci_rx_work+0x385/0xa70 [ 401.500919] process_one_work+0x7b9/0x15a0 [ 401.505912] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 401.510928] ? lock_acquire+0x180/0x3a0 [ 401.515303] ? kasan_check_write+0x14/0x20 [ 401.519612] ? do_raw_spin_lock+0xd0/0x240 [ 401.523923] worker_thread+0x85/0xb60 [ 401.527736] ? __kthread_parkme+0x37/0x1c0 [ 401.532201] kthread+0x347/0x410 [ 401.535902] ? process_one_work+0x15a0/0x15a0 [ 401.540407] ? kthread_park+0x100/0x100 [ 401.544479] ret_from_fork+0x24/0x30 [ 401.550606] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 401.563335] Bluetooth: hci5: failed to register connection device [ 401.569747] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 401.580399] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 401.588268] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 401.598311] Workqueue: hci5 hci_rx_work [ 401.602382] Call Trace: [ 401.605042] dump_stack+0x17c/0x226 [ 401.608844] sysfs_warn_dup.cold.0+0x17/0x26 [ 401.613407] sysfs_create_dir_ns+0x1c2/0x270 [ 401.618144] ? sysfs_create_mount_point+0x80/0x80 [ 401.623298] ? lock_downgrade+0x860/0x860 [ 401.627724] ? do_raw_spin_unlock+0x177/0x260 [ 401.632249] kobject_add_internal+0x257/0x8d0 [ 401.636898] kobject_add+0x10f/0x170 [ 401.640675] ? kobject_add_internal+0x8d0/0x8d0 [ 401.645371] ? __lockdep_init_map+0x105/0x590 [ 401.650566] ? get_device+0x20/0x20 [ 401.654655] ? lockdep_init_map+0x9/0x10 [ 401.659134] ? __raw_spin_lock_init+0x2d/0x100 [ 401.664011] device_add+0x33e/0x16b0 [ 401.667743] ? _dev_warn+0x100/0x100 [ 401.671454] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 401.677627] ? lock_downgrade+0x860/0x860 [ 401.681993] hci_conn_add_sysfs+0x8e/0x160 [ 401.686406] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 401.692295] hci_event_packet+0x1a08/0x68e0 [ 401.696685] ? mark_held_locks+0x130/0x130 [ 401.700924] ? __lock_acquire+0x764/0x47c0 [ 401.705208] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 401.711500] ? mark_held_locks+0xc7/0x130 [ 401.715927] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.721305] ? skb_dequeue+0x14d/0x1f0 [ 401.725194] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 401.730080] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.735455] ? trace_hardirqs_on+0x28/0x190 [ 401.739911] ? kasan_check_read+0x11/0x20 [ 401.744050] hci_rx_work+0x385/0xa70 [ 401.748008] process_one_work+0x7b9/0x15a0 [ 401.752399] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 401.757787] ? lock_acquire+0x180/0x3a0 [ 401.761998] ? kasan_check_write+0x14/0x20 [ 401.766289] ? do_raw_spin_lock+0xd0/0x240 [ 401.770568] worker_thread+0x85/0xb60 [ 401.774374] ? __kthread_parkme+0x37/0x1c0 [ 401.778728] kthread+0x347/0x410 [ 401.782197] ? process_one_work+0x15a0/0x15a0 [ 401.786689] ? kthread_park+0x100/0x100 [ 401.791131] ret_from_fork+0x24/0x30 [ 401.797569] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 401.810275] Bluetooth: hci5: failed to register connection device [ 401.840982] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 401.850851] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 401.858569] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 401.868110] Workqueue: hci5 hci_rx_work [ 401.872241] Call Trace: [ 401.874833] dump_stack+0x17c/0x226 [ 401.878589] sysfs_warn_dup.cold.0+0x17/0x26 [ 401.883112] sysfs_create_dir_ns+0x1c2/0x270 [ 401.887612] ? sysfs_create_mount_point+0x80/0x80 [ 401.892554] ? lock_downgrade+0x860/0x860 [ 401.896710] ? do_raw_spin_unlock+0x177/0x260 [ 401.901223] kobject_add_internal+0x257/0x8d0 [ 401.905907] kobject_add+0x10f/0x170 [ 401.909744] ? kobject_add_internal+0x8d0/0x8d0 [ 401.914508] ? __lockdep_init_map+0x105/0x590 [ 401.919110] ? get_device+0x20/0x20 [ 401.922741] ? lockdep_init_map+0x9/0x10 [ 401.926893] ? __raw_spin_lock_init+0x2d/0x100 [ 401.931577] device_add+0x33e/0x16b0 [ 401.935467] ? _dev_warn+0x100/0x100 [ 401.939234] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 401.945238] ? lock_downgrade+0x860/0x860 [ 401.949394] hci_conn_add_sysfs+0x8e/0x160 [ 401.953761] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 401.959820] hci_event_packet+0x1a08/0x68e0 [ 401.964206] ? mark_held_locks+0x130/0x130 [ 401.968507] ? __lock_acquire+0x764/0x47c0 [ 401.972744] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 401.979914] ? mark_held_locks+0xc7/0x130 [ 401.984155] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 401.989692] ? skb_dequeue+0x14d/0x1f0 [ 401.993569] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 401.998417] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.003500] ? trace_hardirqs_on+0x28/0x190 [ 402.007802] ? kasan_check_read+0x11/0x20 [ 402.012026] hci_rx_work+0x385/0xa70 [ 402.015722] process_one_work+0x7b9/0x15a0 [ 402.020048] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 402.025303] ? lock_acquire+0x180/0x3a0 [ 402.029261] ? kasan_check_write+0x14/0x20 [ 402.033592] ? do_raw_spin_lock+0xd0/0x240 [ 402.038086] worker_thread+0x85/0xb60 [ 402.042387] ? __kthread_parkme+0x37/0x1c0 [ 402.046804] kthread+0x347/0x410 [ 402.050342] ? process_one_work+0x15a0/0x15a0 [ 402.055085] ? kthread_park+0x100/0x100 [ 402.059038] ret_from_fork+0x24/0x30 [ 402.069046] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 402.095970] Bluetooth: hci5: failed to register connection device [ 402.103047] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 402.122281] CPU: 1 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 402.129925] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 402.139546] Workqueue: hci5 hci_rx_work [ 402.143711] Call Trace: [ 402.146296] dump_stack+0x17c/0x226 [ 402.150015] sysfs_warn_dup.cold.0+0x17/0x26 [ 402.154517] sysfs_create_dir_ns+0x1c2/0x270 [ 402.159103] ? sysfs_create_mount_point+0x80/0x80 [ 402.163954] ? lock_downgrade+0x860/0x860 [ 402.168198] ? do_raw_spin_unlock+0x177/0x260 [ 402.172808] kobject_add_internal+0x257/0x8d0 [ 402.177339] kobject_add+0x10f/0x170 [ 402.181152] ? kobject_add_internal+0x8d0/0x8d0 [ 402.185847] ? __lockdep_init_map+0x105/0x590 [ 402.190343] ? get_device+0x20/0x20 [ 402.194150] ? lockdep_init_map+0x9/0x10 [ 402.198211] ? __raw_spin_lock_init+0x2d/0x100 [ 402.202802] device_add+0x33e/0x16b0 [ 402.206950] ? _dev_warn+0x100/0x100 [ 402.210867] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 402.216961] ? lock_downgrade+0x860/0x860 [ 402.221325] hci_conn_add_sysfs+0x8e/0x160 [ 402.225659] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 402.231464] hci_event_packet+0x1a08/0x68e0 [ 402.235895] ? mark_held_locks+0x130/0x130 [ 402.240226] ? __lock_acquire+0x764/0x47c0 [ 402.244467] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 402.250277] ? mark_held_locks+0xc7/0x130 [ 402.254473] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.259782] ? skb_dequeue+0x14d/0x1f0 [ 402.263768] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 402.268439] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.273732] ? trace_hardirqs_on+0x28/0x190 [ 402.278419] ? kasan_check_read+0x11/0x20 [ 402.282730] hci_rx_work+0x385/0xa70 [ 402.286534] process_one_work+0x7b9/0x15a0 [ 402.290951] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 402.295786] ? lock_acquire+0x180/0x3a0 [ 402.299922] ? kasan_check_write+0x14/0x20 [ 402.304297] ? do_raw_spin_lock+0xd0/0x240 [ 402.308662] worker_thread+0x85/0xb60 [ 402.312600] ? __kthread_parkme+0x37/0x1c0 [ 402.317222] kthread+0x347/0x410 [ 402.320576] ? process_one_work+0x15a0/0x15a0 [ 402.325503] ? kthread_park+0x100/0x100 [ 402.329480] ret_from_fork+0x24/0x30 [ 402.333723] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 402.346356] Bluetooth: hci5: failed to register connection device [ 402.355836] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 402.364870] CPU: 1 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 402.372577] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 402.382118] Workqueue: hci5 hci_rx_work [ 402.386094] Call Trace: [ 402.388733] dump_stack+0x17c/0x226 [ 402.393702] sysfs_warn_dup.cold.0+0x17/0x26 [ 402.398560] sysfs_create_dir_ns+0x1c2/0x270 [ 402.403088] ? sysfs_create_mount_point+0x80/0x80 [ 402.408105] ? lock_downgrade+0x860/0x860 [ 402.412261] ? do_raw_spin_unlock+0x177/0x260 [ 402.416940] kobject_add_internal+0x257/0x8d0 [ 402.421443] kobject_add+0x10f/0x170 [ 402.425171] ? kobject_add_internal+0x8d0/0x8d0 [ 402.429933] ? __lockdep_init_map+0x105/0x590 [ 402.434655] ? get_device+0x20/0x20 [ 402.438306] ? lockdep_init_map+0x9/0x10 [ 402.442373] ? __raw_spin_lock_init+0x2d/0x100 [ 402.447147] device_add+0x33e/0x16b0 [ 402.451041] ? _dev_warn+0x100/0x100 [ 402.454872] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 402.461212] ? lock_downgrade+0x860/0x860 [ 402.465384] hci_conn_add_sysfs+0x8e/0x160 [ 402.469731] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 402.475623] hci_event_packet+0x1a08/0x68e0 [ 402.480052] ? mark_held_locks+0x130/0x130 [ 402.484538] ? __lock_acquire+0x764/0x47c0 [ 402.490009] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 402.496161] ? mark_held_locks+0xc7/0x130 [ 402.500757] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.506330] ? skb_dequeue+0x14d/0x1f0 [ 402.511183] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 402.516265] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.521465] ? trace_hardirqs_on+0x28/0x190 [ 402.525812] ? kasan_check_read+0x11/0x20 [ 402.529976] hci_rx_work+0x385/0xa70 [ 402.533719] process_one_work+0x7b9/0x15a0 [ 402.538070] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 402.542859] ? lock_acquire+0x180/0x3a0 [ 402.547118] ? kasan_check_write+0x14/0x20 [ 402.551776] ? do_raw_spin_lock+0xd0/0x240 [ 402.556199] worker_thread+0x85/0xb60 [ 402.560334] ? __kthread_parkme+0x37/0x1c0 [ 402.564766] kthread+0x347/0x410 [ 402.568308] ? process_one_work+0x15a0/0x15a0 [ 402.573512] ? kthread_park+0x100/0x100 [ 402.577496] ret_from_fork+0x24/0x30 [ 402.582859] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 402.596792] Bluetooth: hci5: failed to register connection device [ 402.606341] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 402.645475] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 402.653557] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 402.663181] Workqueue: hci5 hci_rx_work [ 402.667159] Call Trace: [ 402.669766] dump_stack+0x17c/0x226 [ 402.673497] sysfs_warn_dup.cold.0+0x17/0x26 [ 402.678153] sysfs_create_dir_ns+0x1c2/0x270 [ 402.682878] ? sysfs_create_mount_point+0x80/0x80 [ 402.688458] ? lock_downgrade+0x860/0x860 [ 402.692621] ? do_raw_spin_unlock+0x177/0x260 [ 402.697341] kobject_add_internal+0x257/0x8d0 [ 402.701852] kobject_add+0x10f/0x170 [ 402.705569] ? kobject_add_internal+0x8d0/0x8d0 [ 402.710735] ? __lockdep_init_map+0x105/0x590 [ 402.715242] ? get_device+0x20/0x20 [ 402.719245] ? lockdep_init_map+0x9/0x10 [ 402.723415] ? __raw_spin_lock_init+0x2d/0x100 [ 402.728523] device_add+0x33e/0x16b0 [ 402.733397] ? _dev_warn+0x100/0x100 [ 402.739153] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 402.745804] ? lock_downgrade+0x860/0x860 [ 402.749988] hci_conn_add_sysfs+0x8e/0x160 [ 402.754591] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 402.760804] hci_event_packet+0x1a08/0x68e0 [ 402.765408] ? mark_held_locks+0x130/0x130 [ 402.770019] ? __lock_acquire+0x764/0x47c0 [ 402.775063] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 402.781103] ? mark_held_locks+0xc7/0x130 [ 402.785786] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.791191] ? skb_dequeue+0x14d/0x1f0 [ 402.795367] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 402.800317] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 402.805793] ? trace_hardirqs_on+0x28/0x190 [ 402.810618] ? kasan_check_read+0x11/0x20 [ 402.815295] hci_rx_work+0x385/0xa70 [ 402.819185] process_one_work+0x7b9/0x15a0 [ 402.823805] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 402.828563] ? lock_acquire+0x180/0x3a0 [ 402.832964] ? kasan_check_write+0x14/0x20 [ 402.837310] ? do_raw_spin_lock+0xd0/0x240 [ 402.841853] worker_thread+0x85/0xb60 [ 402.845884] ? __kthread_parkme+0x37/0x1c0 [ 402.851080] kthread+0x347/0x410 [ 402.854482] ? process_one_work+0x15a0/0x15a0 [ 402.859196] ? kthread_park+0x100/0x100 [ 402.863379] ret_from_fork+0x24/0x30 [ 402.880861] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 402.894716] Bluetooth: hci5: failed to register connection device [ 402.901480] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 402.931785] CPU: 0 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 402.939961] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 402.949415] Workqueue: hci5 hci_rx_work [ 402.953584] Call Trace: [ 402.956910] dump_stack+0x17c/0x226 [ 402.960686] sysfs_warn_dup.cold.0+0x17/0x26 [ 402.965103] sysfs_create_dir_ns+0x1c2/0x270 [ 402.969627] ? sysfs_create_mount_point+0x80/0x80 [ 402.974823] ? lock_downgrade+0x860/0x860 [ 402.979246] ? do_raw_spin_unlock+0x177/0x260 [ 402.983752] kobject_add_internal+0x257/0x8d0 [ 402.988259] kobject_add+0x10f/0x170 [ 402.992066] ? kobject_add_internal+0x8d0/0x8d0 [ 402.996834] ? __lockdep_init_map+0x105/0x590 [ 403.001423] ? get_device+0x20/0x20 [ 403.005332] ? lockdep_init_map+0x9/0x10 [ 403.009395] ? __raw_spin_lock_init+0x2d/0x100 [ 403.014532] device_add+0x33e/0x16b0 [ 403.018266] ? _dev_warn+0x100/0x100 [ 403.022242] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 403.028656] ? lock_downgrade+0x860/0x860 [ 403.032895] hci_conn_add_sysfs+0x8e/0x160 [ 403.037331] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 403.044053] hci_event_packet+0x1a08/0x68e0 [ 403.048553] ? mark_held_locks+0x130/0x130 [ 403.052848] ? __lock_acquire+0x764/0x47c0 [ 403.057487] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 403.063552] ? mark_held_locks+0xc7/0x130 [ 403.068324] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.073699] ? skb_dequeue+0x14d/0x1f0 [ 403.078276] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 403.083239] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.088951] ? trace_hardirqs_on+0x28/0x190 [ 403.094011] ? kasan_check_read+0x11/0x20 [ 403.098786] hci_rx_work+0x385/0xa70 [ 403.102496] process_one_work+0x7b9/0x15a0 [ 403.107191] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 403.113581] ? lock_acquire+0x180/0x3a0 [ 403.118139] ? kasan_check_write+0x14/0x20 [ 403.123192] ? do_raw_spin_lock+0xd0/0x240 [ 403.128058] worker_thread+0x85/0xb60 [ 403.131857] ? __kthread_parkme+0x37/0x1c0 [ 403.136335] kthread+0x347/0x410 [ 403.139779] ? process_one_work+0x15a0/0x15a0 [ 403.145409] ? kthread_park+0x100/0x100 [ 403.150719] ret_from_fork+0x24/0x30 [ 403.169648] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 403.184175] Bluetooth: hci5: failed to register connection device [ 403.191677] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 403.203652] CPU: 1 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 403.212999] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 403.222852] Workqueue: hci5 hci_rx_work [ 403.227078] Call Trace: [ 403.230087] dump_stack+0x17c/0x226 [ 403.233811] sysfs_warn_dup.cold.0+0x17/0x26 [ 403.238371] sysfs_create_dir_ns+0x1c2/0x270 [ 403.242943] ? sysfs_create_mount_point+0x80/0x80 [ 403.248062] ? lock_downgrade+0x860/0x860 [ 403.252361] ? do_raw_spin_unlock+0x177/0x260 [ 403.256937] kobject_add_internal+0x257/0x8d0 [ 403.261526] kobject_add+0x10f/0x170 [ 403.265333] ? kobject_add_internal+0x8d0/0x8d0 [ 403.270661] ? __lockdep_init_map+0x105/0x590 [ 403.275331] ? get_device+0x20/0x20 [ 403.279490] ? lockdep_init_map+0x9/0x10 [ 403.283542] ? __raw_spin_lock_init+0x2d/0x100 [ 403.288202] device_add+0x33e/0x16b0 [ 403.291917] ? _dev_warn+0x100/0x100 [ 403.295705] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 403.301673] ? lock_downgrade+0x860/0x860 [ 403.305840] hci_conn_add_sysfs+0x8e/0x160 [ 403.310333] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 403.316214] hci_event_packet+0x1a08/0x68e0 [ 403.320538] ? mark_held_locks+0x130/0x130 [ 403.325203] ? __lock_acquire+0x764/0x47c0 [ 403.329517] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 403.335327] ? mark_held_locks+0xc7/0x130 [ 403.339551] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.344668] ? skb_dequeue+0x14d/0x1f0 [ 403.348643] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 403.353205] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.358335] ? trace_hardirqs_on+0x28/0x190 [ 403.363076] ? kasan_check_read+0x11/0x20 [ 403.367208] hci_rx_work+0x385/0xa70 [ 403.370899] process_one_work+0x7b9/0x15a0 [ 403.375113] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 403.379757] ? lock_acquire+0x180/0x3a0 [ 403.383718] ? kasan_check_write+0x14/0x20 [ 403.387935] ? do_raw_spin_lock+0xd0/0x240 [ 403.392235] worker_thread+0x85/0xb60 [ 403.396023] ? __kthread_parkme+0x37/0x1c0 [ 403.400342] kthread+0x347/0x410 [ 403.403721] ? process_one_work+0x15a0/0x15a0 [ 403.408474] ? kthread_park+0x100/0x100 [ 403.412450] ret_from_fork+0x24/0x30 [ 403.419058] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 403.432073] Bluetooth: hci5: failed to register connection device [ 403.439671] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 403.449260] CPU: 1 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 403.457159] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 403.466685] Workqueue: hci5 hci_rx_work [ 403.470781] Call Trace: [ 403.473353] dump_stack+0x17c/0x226 [ 403.477392] sysfs_warn_dup.cold.0+0x17/0x26 [ 403.481863] sysfs_create_dir_ns+0x1c2/0x270 [ 403.486270] ? sysfs_create_mount_point+0x80/0x80 [ 403.491182] ? lock_downgrade+0x860/0x860 [ 403.495306] ? do_raw_spin_unlock+0x177/0x260 [ 403.500012] kobject_add_internal+0x257/0x8d0 [ 403.504858] kobject_add+0x10f/0x170 [ 403.508573] ? kobject_add_internal+0x8d0/0x8d0 [ 403.513419] ? __lockdep_init_map+0x105/0x590 [ 403.517976] ? get_device+0x20/0x20 [ 403.521850] ? lockdep_init_map+0x9/0x10 [ 403.526171] ? __raw_spin_lock_init+0x2d/0x100 [ 403.531081] device_add+0x33e/0x16b0 [ 403.534906] ? _dev_warn+0x100/0x100 [ 403.540352] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 403.546343] ? lock_downgrade+0x860/0x860 [ 403.550589] hci_conn_add_sysfs+0x8e/0x160 [ 403.554803] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 403.561169] hci_event_packet+0x1a08/0x68e0 [ 403.565487] ? mark_held_locks+0x130/0x130 [ 403.569962] ? __lock_acquire+0x764/0x47c0 [ 403.574521] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 403.581423] ? mark_held_locks+0xc7/0x130 [ 403.585906] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.592109] ? skb_dequeue+0x14d/0x1f0 [ 403.595999] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 403.601084] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.606387] ? trace_hardirqs_on+0x28/0x190 [ 403.611536] ? kasan_check_read+0x11/0x20 [ 403.615828] hci_rx_work+0x385/0xa70 [ 403.619848] process_one_work+0x7b9/0x15a0 [ 403.624881] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 403.630043] ? lock_acquire+0x180/0x3a0 [ 403.634353] ? kasan_check_write+0x14/0x20 [ 403.638707] ? do_raw_spin_lock+0xd0/0x240 [ 403.642966] worker_thread+0x85/0xb60 [ 403.647106] ? __kthread_parkme+0x37/0x1c0 [ 403.652052] kthread+0x347/0x410 [ 403.655500] ? process_one_work+0x15a0/0x15a0 [ 403.660459] ? kthread_park+0x100/0x100 [ 403.664879] ret_from_fork+0x24/0x30 [ 403.670964] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 403.683812] Bluetooth: hci5: failed to register connection device [ 403.705220] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 403.715690] CPU: 1 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 403.723918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 403.733536] Workqueue: hci5 hci_rx_work [ 403.737662] Call Trace: [ 403.740250] dump_stack+0x17c/0x226 [ 403.744052] sysfs_warn_dup.cold.0+0x17/0x26 [ 403.748634] sysfs_create_dir_ns+0x1c2/0x270 [ 403.753125] ? sysfs_create_mount_point+0x80/0x80 [ 403.758119] ? lock_downgrade+0x860/0x860 [ 403.762494] ? do_raw_spin_unlock+0x177/0x260 [ 403.767103] kobject_add_internal+0x257/0x8d0 [ 403.771673] kobject_add+0x10f/0x170 [ 403.775377] ? kobject_add_internal+0x8d0/0x8d0 [ 403.780130] ? __lockdep_init_map+0x105/0x590 [ 403.784884] ? get_device+0x20/0x20 [ 403.788743] ? lockdep_init_map+0x9/0x10 [ 403.792821] ? __raw_spin_lock_init+0x2d/0x100 [ 403.797852] device_add+0x33e/0x16b0 [ 403.801736] ? _dev_warn+0x100/0x100 [ 403.805430] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 403.811489] ? lock_downgrade+0x860/0x860 [ 403.815616] hci_conn_add_sysfs+0x8e/0x160 [ 403.820073] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 403.826082] hci_event_packet+0x1a08/0x68e0 [ 403.830425] ? mark_held_locks+0x130/0x130 [ 403.834721] ? __lock_acquire+0x764/0x47c0 [ 403.839044] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 403.844825] ? mark_held_locks+0xc7/0x130 [ 403.848958] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.854036] ? skb_dequeue+0x14d/0x1f0 [ 403.857901] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 403.862551] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 403.867639] ? trace_hardirqs_on+0x28/0x190 [ 403.871937] ? kasan_check_read+0x11/0x20 [ 403.876064] hci_rx_work+0x385/0xa70 [ 403.879770] process_one_work+0x7b9/0x15a0 [ 403.883996] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 403.889680] ? lock_acquire+0x180/0x3a0 [ 403.893637] ? kasan_check_write+0x14/0x20 [ 403.898018] ? do_raw_spin_lock+0xd0/0x240 [ 403.902331] worker_thread+0x85/0xb60 [ 403.906653] ? __kthread_parkme+0x37/0x1c0 [ 403.911062] kthread+0x347/0x410 [ 403.914432] ? process_one_work+0x15a0/0x15a0 [ 403.918904] ? kthread_park+0x100/0x100 [ 403.922855] ret_from_fork+0x24/0x30 [ 403.932416] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 403.945122] Bluetooth: hci5: failed to register connection device [ 403.956247] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 403.965214] CPU: 1 PID: 8128 Comm: kworker/u5:2 Not tainted 4.19.196-syzkaller #0 [ 403.973005] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 403.983117] Workqueue: hci5 hci_rx_work [ 403.987164] Call Trace: [ 403.989730] dump_stack+0x17c/0x226 [ 403.993448] sysfs_warn_dup.cold.0+0x17/0x26 [ 403.997865] sysfs_create_dir_ns+0x1c2/0x270 [ 404.002535] ? sysfs_create_mount_point+0x80/0x80 [ 404.007523] ? lock_downgrade+0x860/0x860 [ 404.012152] ? do_raw_spin_unlock+0x177/0x260 [ 404.016902] kobject_add_internal+0x257/0x8d0 [ 404.021421] kobject_add+0x10f/0x170 [ 404.025112] ? kobject_add_internal+0x8d0/0x8d0 [ 404.030044] ? __lockdep_init_map+0x105/0x590 [ 404.034622] ? get_device+0x20/0x20 [ 404.038335] ? lockdep_init_map+0x9/0x10 [ 404.042396] ? __raw_spin_lock_init+0x2d/0x100 [ 404.047079] device_add+0x33e/0x16b0 [ 404.051339] ? _dev_warn+0x100/0x100 [ 404.055210] ? hci_sync_conn_complete_evt.isra.112+0x169/0xa50 [ 404.061314] ? lock_downgrade+0x860/0x860 [ 404.065826] hci_conn_add_sysfs+0x8e/0x160 [ 404.070139] hci_sync_conn_complete_evt.isra.112+0x8bc/0xa50 [ 404.076338] hci_event_packet+0x1a08/0x68e0 [ 404.080832] ? mark_held_locks+0x130/0x130 [ 404.085043] ? __lock_acquire+0x764/0x47c0 [ 404.089254] ? hci_loglink_complete_evt.isra.127+0x740/0x740 [ 404.095189] ? mark_held_locks+0xc7/0x130 [ 404.099527] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 404.105041] ? skb_dequeue+0x14d/0x1f0 [ 404.109216] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 404.114581] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 404.119805] ? trace_hardirqs_on+0x28/0x190 [ 404.124136] ? kasan_check_read+0x11/0x20 [ 404.128638] hci_rx_work+0x385/0xa70 [ 404.132343] process_one_work+0x7b9/0x15a0 [ 404.136683] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 404.141331] ? lock_acquire+0x180/0x3a0 [ 404.145284] ? kasan_check_write+0x14/0x20 [ 404.149518] ? do_raw_spin_lock+0xd0/0x240 [ 404.153756] worker_thread+0x85/0xb60 [ 404.157576] ? __kthread_parkme+0x37/0x1c0 [ 404.161796] kthread+0x347/0x410 [ 404.165228] ? process_one_work+0x15a0/0x15a0 [ 404.169757] ? kthread_park+0x100/0x100 [ 404.173710] ret_from_fork+0x24/0x30 [ 404.179818] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 404.193953] Bluetooth: hci5: failed to register connection device [ 404.208732] kasan: CONFIG_KASAN_INLINE enabled [ 404.217927] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 404.226168] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 404.232510] CPU: 1 PID: 31509 Comm: syz-executor.3 Not tainted 4.19.196-syzkaller #0 [ 404.240387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 404.250077] RIP: 0010:klist_next+0x48/0x450 [ 404.255181] Code: 48 89 fb 48 83 ec 18 80 3c 02 00 0f 85 e1 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 23 49 8d 7c 24 50 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b4 02 00 00 4c 8d 6b 08 4d 8b 7c 24 50 48 b8 00 [ 404.274724] RSP: 0018:ffff8880b361f698 EFLAGS: 00010206 [ 404.280089] RAX: dffffc0000000000 RBX: ffff8880b361f718 RCX: ffffffff87a3e038 [ 404.287352] RDX: 000000000000000a RSI: ffff8880b361f718 RDI: 0000000000000050 [ 404.294598] RBP: ffff8880b361f6d8 R08: fffffbfff13301ea R09: fffffbfff13301e9 [ 404.302342] R10: fffffbfff13301e9 R11: ffffffff89980f4f R12: 0000000000000000 [ 404.309683] R13: 0000000000000000 R14: ffffffff86d8c400 R15: dffffc0000000000 [ 404.316955] FS: 00007fb4d87cd700(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000 [ 404.325854] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 404.331797] CR2: 000055ca0115e980 CR3: 000000009c232000 CR4: 00000000001406e0 [ 404.339762] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 404.347187] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 404.354440] Call Trace: [ 404.357442] ? synchronize_rcu_expedited+0xb0/0xb0 [ 404.362532] ? bt_link_release+0x20/0x20 [ 404.366594] device_find_child+0xb1/0x170 [ 404.370847] ? device_for_each_child+0x140/0x140 [ 404.375696] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 404.381410] ? trace_hardirqs_on+0x28/0x190 [ 404.386033] ? bt_link_release+0x20/0x20 [ 404.390406] hci_conn_del_sysfs+0xaa/0x150 [ 404.394640] hci_conn_cleanup+0x1ff/0x4e0 [ 404.399294] hci_conn_del+0x22c/0x6b0 [ 404.403293] hci_conn_hash_flush+0x171/0x230 [ 404.407762] hci_dev_do_close+0x57e/0xe10 [ 404.411978] ? lock_downgrade+0x860/0x860 [ 404.416358] ? hci_dev_open+0x200/0x200 [ 404.420835] ? kasan_check_write+0x14/0x20 [ 404.425135] hci_unregister_dev+0x167/0x890 [ 404.429524] vhci_release+0x6b/0xe0 [ 404.433334] __fput+0x249/0x7f0 [ 404.436681] ____fput+0x9/0x10 [ 404.439969] task_work_run+0x108/0x180 [ 404.444207] do_exit+0xa6a/0x2d90 [ 404.448029] ? call_rcu+0x12/0x20 [ 404.451731] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 404.456737] ? mm_update_next_owner+0x680/0x680 [ 404.461740] ? task_work_run+0xe2/0x180 [ 404.465809] ? get_signal+0x2ba/0x1970 [ 404.470037] ? _raw_spin_unlock_irq+0x27/0x90 [ 404.474696] ? get_signal+0x2ba/0x1970 [ 404.478740] do_group_exit+0xf8/0x2c0 [ 404.482554] get_signal+0x30b/0x1970 [ 404.486337] ? release_sock+0x11f/0x180 [ 404.490477] do_signal+0x87/0x1870 [ 404.494176] ? fput+0xa4/0x120 [ 404.497806] ? __sys_connect+0x249/0x2d0 [ 404.502634] ? __call_rcu.constprop.51+0x259/0x7f0 [ 404.507861] ? setup_sigcontext+0x7d0/0x7d0 [ 404.512179] ? __se_sys_futex+0x209/0x270 [ 404.516378] ? _raw_spin_unlock_irq+0x27/0x90 [ 404.520853] ? task_work_run+0xe2/0x180 [ 404.525191] ? do_futex+0x1530/0x1530 [ 404.529139] ? trace_hardirqs_on+0x28/0x190 [ 404.534022] ? exit_to_usermode_loop+0x3a/0x1e0 [ 404.538774] ? do_syscall_64+0x413/0x4e0 [ 404.542915] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 404.547671] ? exit_to_usermode_loop+0x3a/0x1e0 [ 404.552324] ? trace_hardirqs_on+0x28/0x190 [ 404.556723] exit_to_usermode_loop+0x159/0x1e0 [ 404.561298] do_syscall_64+0x413/0x4e0 [ 404.565193] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 404.570357] RIP: 0033:0x465af9 [ 404.574157] Code: Bad RIP value. [ 404.577493] RSP: 002b:00007fb4d87cd188 EFLAGS: 00000246 ORIG_RAX: 000000000000002a [ 404.585210] RAX: fffffffffffffff0 RBX: 000000000056bf60 RCX: 0000000000465af9 [ 404.592477] RDX: 0000000000000008 RSI: 0000000020000140 RDI: 0000000000000004 [ 404.599813] RBP: 00000000004b0682 R08: 0000000000000000 R09: 0000000000000000 [ 404.607402] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 [ 404.614656] R13: 00007fffc9757c3f R14: 00007fb4d87cd300 R15: 0000000000022000 [ 404.622323] Modules linked in: [ 404.628992] ---[ end trace dc57e154fa8322e6 ]--- [ 404.633823] RIP: 0010:klist_next+0x48/0x450 [ 404.638178] Code: 48 89 fb 48 83 ec 18 80 3c 02 00 0f 85 e1 02 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 23 49 8d 7c 24 50 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 b4 02 00 00 4c 8d 6b 08 4d 8b 7c 24 50 48 b8 00 [ 404.660606] RSP: 0018:ffff8880b361f698 EFLAGS: 00010206 [ 404.666415] RAX: dffffc0000000000 RBX: ffff8880b361f718 RCX: ffffffff87a3e038 [ 404.673887] RDX: 000000000000000a RSI: ffff8880b361f718 RDI: 0000000000000050 [ 404.681832] RBP: ffff8880b361f6d8 R08: fffffbfff13301ea R09: fffffbfff13301e9 [ 404.689461] R10: fffffbfff13301e9 R11: ffffffff89980f4f R12: 0000000000000000 [ 404.697097] R13: 0000000000000000 R14: ffffffff86d8c400 R15: dffffc0000000000 [ 404.704855] FS: 00007fb4d87cd700(0000) GS:ffff8880ba300000(0000) knlGS:0000000000000000 [ 404.714657] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 404.720766] CR2: 0000000000465acf CR3: 000000009c232000 CR4: 00000000001406e0 [ 404.728631] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 404.736266] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 404.744139] Kernel panic - not syncing: Fatal exception [ 404.751608] Kernel Offset: disabled [ 404.755270] Rebooting in 86400 seconds..