? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 395.936156] ? lock_downgrade+0x7f0/0x7f0 [ 395.940300] hci_conn_add_sysfs+0x8e/0x160 [ 395.944513] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 395.950299] hci_event_packet+0x3780/0x7576 [ 395.954695] ? trace_hardirqs_on+0x10/0x10 [ 395.959087] ? __lock_acquire+0x769/0x4770 [ 395.963301] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 395.969190] ? mark_held_locks+0xc7/0x130 [ 395.973414] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 395.978600] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 395.984125] ? kasan_check_read+0x11/0x20 [ 395.988357] hci_rx_work+0x368/0xa40 [ 395.992068] process_one_work+0x7b9/0x1580 [ 395.996810] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 396.001477] ? lock_acquire+0x17e/0x3e0 [ 396.005439] ? kasan_check_write+0x14/0x20 [ 396.009656] ? do_raw_spin_lock+0xc1/0x200 [ 396.013972] worker_thread+0x85/0xb60 [ 396.017754] kthread+0x316/0x3d0 [ 396.021185] ? process_one_work+0x1580/0x1580 [ 396.025896] ? kthread_flush_work_fn+0x10/0x10 [ 396.030744] ret_from_fork+0x24/0x30 [ 396.036686] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 396.049312] Bluetooth: hci5: failed to register connection device [ 396.083510] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 396.092954] CPU: 1 PID: 8653 Comm: kworker/u5:7 Not tainted 4.18.0-syzkaller #0 [ 396.101843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 396.111285] Workqueue: hci5 hci_rx_work [ 396.115240] Call Trace: [ 396.117852] dump_stack+0x15a/0x20d [ 396.121856] sysfs_warn_dup.cold.0+0x17/0x32 [ 396.126355] sysfs_create_dir_ns+0x108/0x1b0 [ 396.131124] kobject_add_internal+0x257/0x8d0 [ 396.136473] kobject_add+0x10f/0x170 [ 396.140348] ? kobject_add_internal+0x8d0/0x8d0 [ 396.145080] ? get_device+0x20/0x20 [ 396.148867] ? __raw_spin_lock_init+0x2d/0x100 [ 396.153977] ? __device_link_free_srcu+0x90/0x90 [ 396.158710] ? klist_init+0x6c/0xe0 [ 396.162334] device_add+0x33e/0x1530 [ 396.166235] ? device_private_init+0x180/0x180 [ 396.170881] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 396.176827] ? lock_downgrade+0x7f0/0x7f0 [ 396.181127] hci_conn_add_sysfs+0x8e/0x160 [ 396.185436] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 396.191275] hci_event_packet+0x3780/0x7576 [ 396.195572] ? trace_hardirqs_on+0x10/0x10 [ 396.199888] ? __lock_acquire+0x769/0x4770 [ 396.204129] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 396.210072] ? mark_held_locks+0xc7/0x130 [ 396.214287] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 396.219468] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 396.224481] ? kasan_check_read+0x11/0x20 [ 396.229401] hci_rx_work+0x368/0xa40 [ 396.233791] process_one_work+0x7b9/0x1580 [ 396.238091] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 396.242819] ? lock_acquire+0x17e/0x3e0 [ 396.246768] ? kasan_check_write+0x14/0x20 [ 396.250978] ? do_raw_spin_lock+0xc1/0x200 [ 396.255305] worker_thread+0x85/0xb60 [ 396.259095] kthread+0x316/0x3d0 [ 396.262436] ? process_one_work+0x1580/0x1580 [ 396.266915] ? kthread_flush_work_fn+0x10/0x10 [ 396.271561] ret_from_fork+0x24/0x30 [ 396.276512] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 396.289215] Bluetooth: hci5: failed to register connection device [ 396.295548] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 396.304524] CPU: 1 PID: 8653 Comm: kworker/u5:7 Not tainted 4.18.0-syzkaller #0 [ 396.312329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 396.322207] Workqueue: hci5 hci_rx_work [ 396.326176] Call Trace: [ 396.328760] dump_stack+0x15a/0x20d [ 396.332489] sysfs_warn_dup.cold.0+0x17/0x32 [ 396.337071] sysfs_create_dir_ns+0x108/0x1b0 [ 396.341750] kobject_add_internal+0x257/0x8d0 [ 396.346250] kobject_add+0x10f/0x170 [ 396.349968] ? kobject_add_internal+0x8d0/0x8d0 [ 396.354648] ? get_device+0x20/0x20 [ 396.358275] ? __raw_spin_lock_init+0x2d/0x100 [ 396.363194] ? __device_link_free_srcu+0x90/0x90 [ 396.368126] ? klist_init+0x6c/0xe0 [ 396.371761] device_add+0x33e/0x1530 [ 396.375480] ? device_private_init+0x180/0x180 [ 396.380196] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 396.386928] ? lock_downgrade+0x7f0/0x7f0 [ 396.391169] hci_conn_add_sysfs+0x8e/0x160 [ 396.395407] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 396.401215] hci_event_packet+0x3780/0x7576 [ 396.405543] ? trace_hardirqs_on+0x10/0x10 [ 396.409774] ? __lock_acquire+0x769/0x4770 [ 396.414005] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 396.419918] ? mark_held_locks+0xc7/0x130 [ 396.424265] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 396.429823] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 396.434838] ? kasan_check_read+0x11/0x20 [ 396.439177] hci_rx_work+0x368/0xa40 [ 396.443031] process_one_work+0x7b9/0x1580 [ 396.447378] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 396.452047] ? lock_acquire+0x17e/0x3e0 [ 396.456023] ? kasan_check_write+0x14/0x20 [ 396.460247] ? do_raw_spin_lock+0xc1/0x200 [ 396.464475] worker_thread+0x85/0xb60 [ 396.468533] kthread+0x316/0x3d0 [ 396.472106] ? process_one_work+0x1580/0x1580 [ 396.476602] ? kthread_flush_work_fn+0x10/0x10 [ 396.481399] ret_from_fork+0x24/0x30 [ 396.487041] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 396.499552] Bluetooth: hci5: failed to register connection device [ 396.551654] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 396.560484] CPU: 1 PID: 8653 Comm: kworker/u5:7 Not tainted 4.18.0-syzkaller #0 [ 396.567947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 396.577476] Workqueue: hci5 hci_rx_work [ 396.581443] Call Trace: [ 396.584031] dump_stack+0x15a/0x20d [ 396.587848] sysfs_warn_dup.cold.0+0x17/0x32 [ 396.592635] sysfs_create_dir_ns+0x108/0x1b0 [ 396.597144] kobject_add_internal+0x257/0x8d0 [ 396.601647] kobject_add+0x10f/0x170 [ 396.605361] ? kobject_add_internal+0x8d0/0x8d0 [ 396.610113] ? get_device+0x20/0x20 [ 396.613739] ? __raw_spin_lock_init+0x2d/0x100 [ 396.618404] ? __device_link_free_srcu+0x90/0x90 [ 396.623155] ? klist_init+0x6c/0xe0 [ 396.626781] device_add+0x33e/0x1530 [ 396.630583] ? device_private_init+0x180/0x180 [ 396.635249] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 396.641322] ? lock_downgrade+0x7f0/0x7f0 [ 396.645653] hci_conn_add_sysfs+0x8e/0x160 [ 396.649899] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 396.656011] hci_event_packet+0x3780/0x7576 [ 396.660344] ? trace_hardirqs_on+0x10/0x10 [ 396.664578] ? __lock_acquire+0x769/0x4770 [ 396.668985] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 396.675014] ? mark_held_locks+0xc7/0x130 [ 396.679159] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 396.684268] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 396.689635] ? kasan_check_read+0x11/0x20 [ 396.694161] hci_rx_work+0x368/0xa40 [ 396.697884] process_one_work+0x7b9/0x1580 [ 396.702132] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 396.706797] ? lock_acquire+0x17e/0x3e0 [ 396.710778] ? kasan_check_write+0x14/0x20 [ 396.715095] ? do_raw_spin_lock+0xc1/0x200 [ 396.719331] worker_thread+0x85/0xb60 [ 396.723308] kthread+0x316/0x3d0 [ 396.726918] ? process_one_work+0x1580/0x1580 [ 396.731498] ? kthread_flush_work_fn+0x10/0x10 [ 396.736437] ret_from_fork+0x24/0x30 [ 396.748354] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 396.762228] Bluetooth: hci5: failed to register connection device [ 396.769255] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 396.777948] CPU: 1 PID: 8653 Comm: kworker/u5:7 Not tainted 4.18.0-syzkaller #0 [ 396.785553] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 396.795211] Workqueue: hci5 hci_rx_work [ 396.799174] Call Trace: [ 396.801765] dump_stack+0x15a/0x20d [ 396.805581] sysfs_warn_dup.cold.0+0x17/0x32 [ 396.810066] sysfs_create_dir_ns+0x108/0x1b0 [ 396.814476] kobject_add_internal+0x257/0x8d0 [ 396.819170] kobject_add+0x10f/0x170 [ 396.823311] ? kobject_add_internal+0x8d0/0x8d0 [ 396.827972] ? get_device+0x20/0x20 [ 396.831854] ? __raw_spin_lock_init+0x2d/0x100 [ 396.836512] ? __device_link_free_srcu+0x90/0x90 [ 396.841440] ? klist_init+0x6c/0xe0 [ 396.845084] device_add+0x33e/0x1530 [ 396.849325] ? device_private_init+0x180/0x180 [ 396.854598] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 396.860919] ? lock_downgrade+0x7f0/0x7f0 [ 396.865168] hci_conn_add_sysfs+0x8e/0x160 [ 396.870188] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 396.876166] hci_event_packet+0x3780/0x7576 [ 396.880574] ? trace_hardirqs_on+0x10/0x10 [ 396.884804] ? __lock_acquire+0x769/0x4770 [ 396.889085] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 396.895089] ? mark_held_locks+0xc7/0x130 [ 396.899402] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 396.904625] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 396.909638] ? kasan_check_read+0x11/0x20 [ 396.913890] hci_rx_work+0x368/0xa40 [ 396.918151] process_one_work+0x7b9/0x1580 [ 396.922653] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 396.927673] ? lock_acquire+0x17e/0x3e0 [ 396.931646] ? kasan_check_write+0x14/0x20 [ 396.935879] ? do_raw_spin_lock+0xc1/0x200 [ 396.940472] worker_thread+0x85/0xb60 [ 396.944353] kthread+0x316/0x3d0 [ 396.947913] ? process_one_work+0x1580/0x1580 [ 396.952416] ? kthread_flush_work_fn+0x10/0x10 [ 396.957127] ret_from_fork+0x24/0x30 [ 396.961845] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 396.975601] Bluetooth: hci5: failed to register connection device [ 397.007282] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 397.016942] CPU: 1 PID: 8654 Comm: kworker/u5:8 Not tainted 4.18.0-syzkaller #0 [ 397.024389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 397.034094] Workqueue: hci5 hci_rx_work [ 397.038067] Call Trace: [ 397.040867] dump_stack+0x15a/0x20d [ 397.044585] sysfs_warn_dup.cold.0+0x17/0x32 [ 397.049526] sysfs_create_dir_ns+0x108/0x1b0 [ 397.054285] kobject_add_internal+0x257/0x8d0 [ 397.058837] kobject_add+0x10f/0x170 [ 397.062557] ? kobject_add_internal+0x8d0/0x8d0 [ 397.067223] ? get_device+0x20/0x20 [ 397.070974] ? __raw_spin_lock_init+0x2d/0x100 [ 397.075551] ? __device_link_free_srcu+0x90/0x90 [ 397.080419] ? klist_init+0x6c/0xe0 [ 397.084142] device_add+0x33e/0x1530 [ 397.087937] ? device_private_init+0x180/0x180 [ 397.092539] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 397.098508] ? lock_downgrade+0x7f0/0x7f0 [ 397.102830] hci_conn_add_sysfs+0x8e/0x160 [ 397.107237] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 397.113045] hci_event_packet+0x3780/0x7576 [ 397.117365] ? trace_hardirqs_on+0x10/0x10 [ 397.121694] ? __lock_acquire+0x769/0x4770 [ 397.126033] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 397.132016] ? mark_held_locks+0xc7/0x130 [ 397.136165] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 397.141354] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 397.146903] ? kasan_check_read+0x11/0x20 [ 397.151050] hci_rx_work+0x368/0xa40 [ 397.154861] process_one_work+0x7b9/0x1580 [ 397.159096] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 397.163926] ? lock_acquire+0x17e/0x3e0 [ 397.167902] ? kasan_check_write+0x14/0x20 [ 397.172147] ? do_raw_spin_lock+0xc1/0x200 [ 397.176737] worker_thread+0x85/0xb60 [ 397.180630] kthread+0x316/0x3d0 [ 397.184019] ? process_one_work+0x1580/0x1580 [ 397.188780] ? kthread_flush_work_fn+0x10/0x10 [ 397.193623] ret_from_fork+0x24/0x30 [ 397.200157] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 397.212966] Bluetooth: hci5: failed to register connection device [ 397.220113] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 397.229249] CPU: 1 PID: 8654 Comm: kworker/u5:8 Not tainted 4.18.0-syzkaller #0 [ 397.236962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 397.246623] Workqueue: hci5 hci_rx_work [ 397.251214] Call Trace: [ 397.254415] dump_stack+0x15a/0x20d [ 397.258331] sysfs_warn_dup.cold.0+0x17/0x32 [ 397.262820] sysfs_create_dir_ns+0x108/0x1b0 [ 397.267738] kobject_add_internal+0x257/0x8d0 [ 397.272508] kobject_add+0x10f/0x170 [ 397.276275] ? kobject_add_internal+0x8d0/0x8d0 [ 397.281258] ? get_device+0x20/0x20 [ 397.285123] ? __raw_spin_lock_init+0x2d/0x100 [ 397.290041] ? __device_link_free_srcu+0x90/0x90 [ 397.294929] ? klist_init+0x6c/0xe0 [ 397.298664] device_add+0x33e/0x1530 [ 397.302724] ? device_private_init+0x180/0x180 [ 397.307690] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 397.313967] ? lock_downgrade+0x7f0/0x7f0 [ 397.318574] hci_conn_add_sysfs+0x8e/0x160 [ 397.322894] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 397.328918] hci_event_packet+0x3780/0x7576 [ 397.333900] ? trace_hardirqs_on+0x10/0x10 [ 397.338213] ? __lock_acquire+0x769/0x4770 [ 397.342475] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 397.348562] ? mark_held_locks+0xc7/0x130 [ 397.353136] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 397.358358] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 397.363612] ? kasan_check_read+0x11/0x20 [ 397.367932] hci_rx_work+0x368/0xa40 [ 397.371964] process_one_work+0x7b9/0x1580 [ 397.376220] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 397.381082] ? lock_acquire+0x17e/0x3e0 [ 397.385171] ? kasan_check_write+0x14/0x20 [ 397.389622] ? do_raw_spin_lock+0xc1/0x200 [ 397.393953] worker_thread+0x85/0xb60 [ 397.397755] kthread+0x316/0x3d0 [ 397.401258] ? process_one_work+0x1580/0x1580 [ 397.406111] ? kthread_flush_work_fn+0x10/0x10 [ 397.410916] ret_from_fork+0x24/0x30 [ 397.415787] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 397.428492] Bluetooth: hci5: failed to register connection device [ 397.477298] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 397.488878] CPU: 0 PID: 8653 Comm: kworker/u5:7 Not tainted 4.18.0-syzkaller #0 [ 397.496351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 397.505882] Workqueue: hci5 hci_rx_work [ 397.509888] Call Trace: [ 397.512487] dump_stack+0x15a/0x20d [ 397.516117] sysfs_warn_dup.cold.0+0x17/0x32 [ 397.520526] sysfs_create_dir_ns+0x108/0x1b0 [ 397.525116] kobject_add_internal+0x257/0x8d0 [ 397.529706] kobject_add+0x10f/0x170 [ 397.533508] ? kobject_add_internal+0x8d0/0x8d0 [ 397.538197] ? get_device+0x20/0x20 [ 397.541833] ? __raw_spin_lock_init+0x2d/0x100 [ 397.546414] ? __device_link_free_srcu+0x90/0x90 [ 397.551268] ? klist_init+0x6c/0xe0 [ 397.554906] device_add+0x33e/0x1530 [ 397.558623] ? device_private_init+0x180/0x180 [ 397.563207] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 397.569267] ? lock_downgrade+0x7f0/0x7f0 [ 397.573521] hci_conn_add_sysfs+0x8e/0x160 [ 397.577847] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 397.583908] hci_event_packet+0x3780/0x7576 [ 397.588592] ? trace_hardirqs_on+0x10/0x10 [ 397.593010] ? __lock_acquire+0x769/0x4770 [ 397.597423] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 397.603801] ? mark_held_locks+0xc7/0x130 [ 397.607929] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 397.613181] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 397.618187] ? kasan_check_read+0x11/0x20 [ 397.622329] hci_rx_work+0x368/0xa40 [ 397.626046] process_one_work+0x7b9/0x1580 [ 397.630287] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 397.634938] ? lock_acquire+0x17e/0x3e0 [ 397.638899] ? kasan_check_write+0x14/0x20 [ 397.643107] ? do_raw_spin_lock+0xc1/0x200 [ 397.647318] worker_thread+0x85/0xb60 [ 397.651274] kthread+0x316/0x3d0 [ 397.654963] ? process_one_work+0x1580/0x1580 [ 397.659434] ? kthread_flush_work_fn+0x10/0x10 [ 397.664266] ret_from_fork+0x24/0x30 [ 397.670162] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 397.682763] Bluetooth: hci5: failed to register connection device [ 397.689266] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci5/hci5:0' [ 397.698028] CPU: 0 PID: 8653 Comm: kworker/u5:7 Not tainted 4.18.0-syzkaller #0 [ 397.705895] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 397.715454] Workqueue: hci5 hci_rx_work [ 397.719406] Call Trace: [ 397.722084] dump_stack+0x15a/0x20d [ 397.726041] sysfs_warn_dup.cold.0+0x17/0x32 [ 397.730526] sysfs_create_dir_ns+0x108/0x1b0 [ 397.735106] kobject_add_internal+0x257/0x8d0 [ 397.739601] kobject_add+0x10f/0x170 [ 397.743318] ? kobject_add_internal+0x8d0/0x8d0 [ 397.748113] ? get_device+0x20/0x20 [ 397.751786] ? __raw_spin_lock_init+0x2d/0x100 [ 397.756599] ? __device_link_free_srcu+0x90/0x90 [ 397.761847] ? klist_init+0x6c/0xe0 [ 397.765571] device_add+0x33e/0x1530 [ 397.769285] ? device_private_init+0x180/0x180 [ 397.774042] ? hci_sync_conn_complete_evt.isra.100+0x15f/0xaa0 [ 397.780425] ? lock_downgrade+0x7f0/0x7f0 [ 397.785004] hci_conn_add_sysfs+0x8e/0x160 [ 397.789246] hci_sync_conn_complete_evt.isra.100+0x8a8/0xaa0 [ 397.795322] hci_event_packet+0x3780/0x7576 [ 397.799883] ? trace_hardirqs_on+0x10/0x10 [ 397.804288] ? __lock_acquire+0x769/0x4770 [ 397.809126] ? hci_phy_link_complete_evt.isra.112+0x7f0/0x7f0 [ 397.815872] ? mark_held_locks+0xc7/0x130 [ 397.820015] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 397.825983] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 397.831289] ? kasan_check_read+0x11/0x20 [ 397.835439] hci_rx_work+0x368/0xa40 [ 397.839255] process_one_work+0x7b9/0x1580 [ 397.843867] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 397.848882] ? lock_acquire+0x17e/0x3e0 [ 397.852859] ? kasan_check_write+0x14/0x20 [ 397.857080] ? do_raw_spin_lock+0xc1/0x200 [ 397.861765] worker_thread+0x85/0xb60 [ 397.865665] kthread+0x316/0x3d0 [ 397.869109] ? process_one_work+0x1580/0x1580 [ 397.873743] ? kthread_flush_work_fn+0x10/0x10 [ 397.878509] ret_from_fork+0x24/0x30 [ 397.884378] kobject_add_internal failed for hci5:0 with -EEXIST, don't try to register things with the same name in the same directory. [ 397.897219] Bluetooth: hci5: failed to register connection device [ 397.928808] kasan: CONFIG_KASAN_INLINE enabled [ 397.933639] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 397.952678] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 397.958936] CPU: 0 PID: 8621 Comm: syz-executor.4 Not tainted 4.18.0-syzkaller #0 [ 397.966552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 397.976155] RIP: 0010:klist_next+0x48/0x3e0 [ 397.980544] Code: 48 89 fb 48 83 ec 10 80 3c 02 00 0f 85 ce 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 a1 02 00 00 4c 8d 6b 08 4d 8b 7c 24 50 48 b8 00 [ 398.000738] RSP: 0018:ffff8800b01376f0 EFLAGS: 00010206 [ 398.006779] RAX: dffffc0000000000 RBX: ffff8800b0137768 RCX: ffffffff813c8f13 [ 398.014323] RDX: 000000000000000a RSI: ffff8800b0137768 RDI: 0000000000000050 [ 398.021571] RBP: ffff8800b0137728 R08: ffffed001574594d R09: ffffed001574594c [ 398.028823] R10: ffffed001574594c R11: ffff8800aba2ca63 R12: 0000000000000000 [ 398.036066] R13: 0000000000000000 R14: ffffffff86bb9860 R15: dffffc0000000000 [ 398.043831] FS: 00000000028da400(0000) GS:ffff8800ba600000(0000) knlGS:0000000000000000 [ 398.052385] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 398.058349] CR2: 0000564613819928 CR3: 00000000a1e3e000 CR4: 00000000001406f0 [ 398.065609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 398.072870] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 398.080114] Call Trace: [ 398.082690] ? synchronize_rcu_expedited+0xb0/0xb0 [ 398.087595] ? bt_link_release+0x20/0x20 [ 398.091891] device_find_child+0xb1/0x170 [ 398.096103] ? device_for_each_child+0x140/0x140 [ 398.100834] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 398.106963] ? bt_link_release+0x20/0x20 [ 398.111168] hci_conn_del_sysfs+0xaa/0x150 [ 398.115386] hci_conn_cleanup+0x1ff/0x4e0 [ 398.119508] hci_conn_del+0x22c/0x6b0 [ 398.123488] hci_conn_hash_flush+0x171/0x230 [ 398.127868] hci_dev_do_close+0x4ea/0xda0 [ 398.132001] hci_unregister_dev+0x167/0x880 [ 398.136304] vhci_release+0x6b/0xe0 [ 398.140002] __fput+0x232/0x780 [ 398.143271] ____fput+0x9/0x10 [ 398.146451] task_work_run+0x111/0x180 [ 398.150404] do_exit+0x9f7/0x2aa0 [ 398.154179] ? mm_update_next_owner+0x680/0x680 [ 398.159024] ? memset+0x31/0x40 [ 398.162287] ? recalc_sigpending+0x16/0x90 [ 398.166685] ? get_signal+0x5be/0x1250 [ 398.170546] ? lock_downgrade+0x7f0/0x7f0 [ 398.174962] do_group_exit+0xf8/0x2c0 [ 398.178914] get_signal+0x56c/0x1250 [ 398.182686] ? trace_hardirqs_on_caller+0x3bb/0x5b0 [ 398.187852] do_signal+0x87/0x1850 [ 398.191386] ? hrtimer_nanosleep+0x2f3/0x4f0 [ 398.195952] ? nanosleep_copyout+0xd0/0xd0 [ 398.200375] ? setup_sigcontext+0x7d0/0x7d0 [ 398.204758] ? clock_was_set_work+0x20/0x20 [ 398.209145] ? timespec_trunc+0x130/0x130 [ 398.213277] ? exit_to_usermode_loop+0x3a/0x1e0 [ 398.218004] exit_to_usermode_loop+0x154/0x1e0 [ 398.222845] do_syscall_64+0x47a/0x540 [ 398.226775] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 398.232302] RIP: 0033:0x48a7a1 [ 398.235478] Code: Bad RIP value. [ 398.238912] RSP: 002b:00007fffeb2d48c0 EFLAGS: 00000293 ORIG_RAX: 00000000000000e6 [ 398.246779] RAX: 0000000000000000 RBX: 00000000000009d5 RCX: 000000000048a7a1 [ 398.254031] RDX: 00007fffeb2d4900 RSI: 0000000000000000 RDI: 0000000000000000 [ 398.261458] RBP: 00007fffeb2d499c R08: 0000000000000000 R09: 0000006b9c99523b [ 398.268885] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032 [ 398.276345] R13: 000000000006118b R14: 0000000000000003 R15: 00007fffeb2d4a00 [ 398.283847] Modules linked in: [ 398.303584] ---[ end trace 5777bcbe2446e968 ]--- [ 398.308380] RIP: 0010:klist_next+0x48/0x3e0 [ 398.314239] Code: 48 89 fb 48 83 ec 10 80 3c 02 00 0f 85 ce 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 a1 02 00 00 4c 8d 6b 08 4d 8b 7c 24 50 48 b8 00 [ 398.335166] RSP: 0018:ffff8800b01376f0 EFLAGS: 00010206 [ 398.341074] RAX: dffffc0000000000 RBX: ffff8800b0137768 RCX: ffffffff813c8f13 [ 398.348967] RDX: 000000000000000a RSI: ffff8800b0137768 RDI: 0000000000000050 [ 398.356733] RBP: ffff8800b0137728 R08: ffffed001574594d R09: ffffed001574594c [ 398.365159] R10: ffffed001574594c R11: ffff8800aba2ca63 R12: 0000000000000000 [ 398.373067] R13: 0000000000000000 R14: ffffffff86bb9860 R15: dffffc0000000000 [ 398.381509] FS: 00000000028da400(0000) GS:ffff8800ba600000(0000) knlGS:0000000000000000 [ 398.390165] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 398.396114] CR2: 00007fff3d195d18 CR3: 00000000a4132000 CR4: 00000000001406f0 [ 398.404593] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 398.412928] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 398.420737] Kernel panic - not syncing: Fatal exception [ 398.428143] Kernel Offset: disabled [ 398.431889] Rebooting in 86400 seconds..