program:
r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x5, 0x0)
connect$bt_l2cap(r0, &(0x7f0000000040)={0x1f, 0x1, @any, 0x0, 0x1}, 0xe)
bind$bt_l2cap(r0, &(0x7f0000000000)={0x1f, 0x0, @any, 0x4, 0x1}, 0xe)
listen(r0, 0x3)
syz_emit_vhci(&(0x7f0000000100)=ANY=[@ANYBLOB="043e130100c90001"], 0x16)
[ 86.949252][ T10] cfg80211: failed to load regulatory.db
[ 87.057056][ T4666] Bluetooth: hci0: command tx timeout
[ 87.126815][ T4666] sysfs: cannot create duplicate filename '/devices/virtual/bluetooth/hci0/hci0:201'
[ 87.141187][ T4666] CPU: 0 UID: 0 PID: 4666 Comm: kworker/u5:1 Not tainted syzkaller #0 PREEMPT(full)
[ 87.141208][ T4666] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 87.141219][ T4666] Workqueue: hci0 hci_rx_work
[ 87.141352][ T4666] Call Trace:
[ 87.141359][ T4666]
[ 87.141366][ T4666] dump_stack_lvl+0x189/0x250
[ 87.141397][ T4666] ? __pfx_dump_stack_lvl+0x10/0x10
[ 87.141414][ T4666] ? __pfx__printk+0x10/0x10
[ 87.141431][ T4666] ? kernfs_path_from_node+0x250/0x290
[ 87.141478][ T4666] ? kernfs_path_from_node+0x2f/0x290
[ 87.141495][ T4666] sysfs_create_dir_ns+0x259/0x280
[ 87.141511][ T4666] ? __pfx_sysfs_create_dir_ns+0x10/0x10
[ 87.141526][ T4666] ? do_raw_spin_unlock+0x4d/0x240
[ 87.141547][ T4666] kobject_add_internal+0x59f/0xb40
[ 87.141572][ T4666] kobject_add+0x155/0x220
[ 87.141601][ T4666] ? __pfx_kobject_add+0x10/0x10
[ 87.141621][ T4666] ? _raw_spin_unlock+0x28/0x50
[ 87.141646][ T4666] ? get_device_parent+0x366/0x3a0
[ 87.141662][ T4666] device_add+0x408/0xb50
[ 87.141678][ T4666] hci_conn_add_sysfs+0xd5/0x1e0
[ 87.141693][ T4666] le_conn_complete_evt+0xf39/0x1500
[ 87.141719][ T4666] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 87.141737][ T4666] ? __mutex_unlock_slowpath+0x1a1/0x740
[ 87.141753][ T4666] ? __asan_memcpy+0x40/0x70
[ 87.141771][ T4666] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 87.141786][ T4666] ? skb_pull_data+0xfb/0x200
[ 87.141803][ T4666] hci_le_conn_complete_evt+0x187/0x450
[ 87.141825][ T4666] hci_event_packet+0x78f/0x1200
[ 87.141842][ T4666] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 87.141860][ T4666] ? __pfx_hci_event_packet+0x10/0x10
[ 87.141874][ T4666] ? kcov_remote_start+0x4d3/0x7f0
[ 87.141887][ T4666] ? local_clock_noinstr+0xe0/0xe0
[ 87.141905][ T4666] ? hci_send_to_monitor+0xe2/0x570
[ 87.141924][ T4666] hci_rx_work+0x46a/0xe80
[ 87.141944][ T4666] ? process_scheduled_works+0x9ef/0x17b0
[ 87.141960][ T4666] process_scheduled_works+0xae1/0x17b0
[ 87.141992][ T4666] ? __pfx_process_scheduled_works+0x10/0x10
[ 87.142019][ T4666] worker_thread+0x8a0/0xda0
[ 87.142035][ T4666] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 87.142056][ T4666] ? __kthread_parkme+0x7b/0x200
[ 87.142077][ T4666] kthread+0x711/0x8a0
[ 87.142101][ T4666] ? __pfx_worker_thread+0x10/0x10
[ 87.142137][ T4666] ? __pfx_kthread+0x10/0x10
[ 87.142155][ T4666] ? _raw_spin_unlock_irq+0x23/0x50
[ 87.142170][ T4666] ? lockdep_hardirqs_on+0x9c/0x150
[ 87.142183][ T4666] ? __pfx_kthread+0x10/0x10
[ 87.142200][ T4666] ret_from_fork+0x4bc/0x870
[ 87.142219][ T4666] ? __pfx_ret_from_fork+0x10/0x10
[ 87.142238][ T4666] ? __pfx_kthread+0x10/0x10
[ 87.142261][ T4666] ret_from_fork_asm+0x1a/0x30
[ 87.142284][ T4666]
[ 87.142309][ T4666] kobject: kobject_add_internal failed for hci0:201 with -EEXIST, don't try to register things with the same name in the same directory.
[ 87.483848][ T4666] Bluetooth: hci0: failed to register connection device
[ 87.530425][ T4666] Oops: general protection fault, probably for non-canonical address 0xdffffc000000004c: 0000 [#1] SMP KASAN NOPTI
[ 87.535616][ T4666] KASAN: null-ptr-deref in range [0x0000000000000260-0x0000000000000267]
[ 87.551733][ T4666] CPU: 0 UID: 0 PID: 4666 Comm: kworker/u5:1 Not tainted syzkaller #0 PREEMPT(full)
[ 87.555523][ T4666] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
[ 87.561097][ T4666] Workqueue: hci0 hci_rx_work
[ 87.563854][ T4666] RIP: 0010:kasan_byte_accessible+0x12/0x30
[ 87.566281][ T4666] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 50 fb 23 09 cc 66 66 66 66 66 66 2e
[ 87.590703][ T4666] RSP: 0018:ffffc9000fd07430 EFLAGS: 00010202
[ 87.593164][ T4666] RAX: dffffc0000000000 RBX: ffffffff8920ac58 RCX: 7e159e07d875ea00
[ 87.603406][ T4666] RDX: 0000000000000000 RSI: ffffffff8920ac58 RDI: 000000000000004c
[ 87.607371][ T4666] RBP: ffffffff8a51e9ea R08: 0000000000000001 R09: 0000000000000000
[ 87.626875][ T4666] R10: dffffc0000000000 R11: ffffffff8a51e9a0 R12: 0000000000000000
[ 87.630257][ T4666] R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001
[ 87.633437][ T4666] FS: 0000000000000000(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
[ 87.637083][ T4666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 87.655994][ T4666] CR2: 00007f016b0389a0 CR3: 0000000011fa8000 CR4: 0000000000352ef0
[ 87.659703][ T4666] Call Trace:
[ 87.661154][ T4666]
[ 87.662407][ T4666] __kasan_check_byte+0x12/0x40
[ 87.664461][ T4666] lock_acquire+0x8d/0x360
[ 87.666289][ T4666] ? __pfx___mutex_lock+0x10/0x10
[ 87.669017][ T4666] ? l2cap_global_fixed_chan+0x2ee/0x380
[ 87.682746][ T4666] lock_sock_nested+0x48/0x100
[ 87.685554][ T4666] ? l2cap_sock_new_connection_cb+0x4a/0x2b0
[ 87.688860][ T4666] l2cap_sock_new_connection_cb+0x4a/0x2b0
[ 87.691594][ T4666] l2cap_connect_cfm+0x37a/0x1040
[ 87.694761][ T4666] ? __pfx_l2cap_connect_cfm+0x10/0x10
[ 87.699644][ T4666] ? __pfx_l2cap_connect_cfm+0x10/0x10
[ 87.708559][ T4666] hci_connect_cfm+0x95/0x140
[ 87.710600][ T4666] le_conn_complete_evt+0xfb8/0x1500
[ 87.712929][ T4666] ? __pfx_le_conn_complete_evt+0x10/0x10
[ 87.719020][ T4666] ? __mutex_unlock_slowpath+0x1a1/0x740
[ 87.729664][ T4666] ? __asan_memcpy+0x40/0x70
[ 87.731973][ T4666] ? __pfx___mutex_unlock_slowpath+0x10/0x10
[ 87.734770][ T4666] ? skb_pull_data+0xfb/0x200
[ 87.736972][ T4666] hci_le_conn_complete_evt+0x187/0x450
[ 87.749766][ T4666] hci_event_packet+0x78f/0x1200
[ 87.752201][ T4666] ? __pfx_hci_le_meta_evt+0x10/0x10
[ 87.756417][ T4666] ? __pfx_hci_event_packet+0x10/0x10
[ 87.762951][ T4666] ? kcov_remote_start+0x4d3/0x7f0
[ 87.767818][ T4666] ? local_clock_noinstr+0xe0/0xe0
[ 87.778698][ T4666] ? hci_send_to_monitor+0xe2/0x570
[ 87.782388][ T4666] hci_rx_work+0x46a/0xe80
[ 87.788030][ T4666] ? process_scheduled_works+0x9ef/0x17b0
[ 87.792694][ T4666] process_scheduled_works+0xae1/0x17b0
[ 87.812125][ T4666] ? __pfx_process_scheduled_works+0x10/0x10
[ 87.814640][ T4666] worker_thread+0x8a0/0xda0
[ 87.816552][ T4666] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10
[ 87.828316][ T4666] ? __kthread_parkme+0x7b/0x200
[ 87.830777][ T4666] kthread+0x711/0x8a0
[ 87.832670][ T4666] ? __pfx_worker_thread+0x10/0x10
[ 87.836169][ T4666] ? __pfx_kthread+0x10/0x10
[ 87.849296][ T4666] ? _raw_spin_unlock_irq+0x23/0x50
[ 87.851845][ T4666] ? lockdep_hardirqs_on+0x9c/0x150
[ 87.854172][ T4666] ? __pfx_kthread+0x10/0x10
[ 87.856329][ T4666] ret_from_fork+0x4bc/0x870
[ 87.859058][ T4666] ? __pfx_ret_from_fork+0x10/0x10
[ 87.870479][ T4666] ? __pfx_kthread+0x10/0x10
[ 87.872921][ T4666] ret_from_fork_asm+0x1a/0x30
[ 87.875612][ T4666]
[ 87.877454][ T4666] Modules linked in:
[ 87.881582][ T4666] ---[ end trace 0000000000000000 ]---
[ 87.896718][ T4666] RIP: 0010:kasan_byte_accessible+0x12/0x30
[ 87.902245][ T4666] Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 40 d6 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 50 fb 23 09 cc 66 66 66 66 66 66 2e
[ 87.931143][ T4666] RSP: 0018:ffffc9000fd07430 EFLAGS: 00010202
[ 87.935526][ T4666] RAX: dffffc0000000000 RBX: ffffffff8920ac58 RCX: 7e159e07d875ea00
[ 87.950170][ T4666] RDX: 0000000000000000 RSI: ffffffff8920ac58 RDI: 000000000000004c
[ 87.956646][ T4666] RBP: ffffffff8a51e9ea R08: 0000000000000001 R09: 0000000000000000
[ 87.967270][ T4666] R10: dffffc0000000000 R11: ffffffff8a51e9a0 R12: 0000000000000000
[ 87.972317][ T4666] R13: 0000000000000260 R14: 0000000000000260 R15: 0000000000000001
[ 87.999482][ T4666] FS: 0000000000000000(0000) GS:ffff88808d730000(0000) knlGS:0000000000000000
[ 88.003725][ T4666] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 88.008158][ T4666] CR2: 00007f72ea4686b0 CR3: 00000000504c0000 CR4: 0000000000352ef0
[ 88.019759][ T4666] Kernel panic - not syncing: Fatal exception
[ 88.022888][ T4666] Kernel Offset: disabled
[ 88.024661][ T4666] Rebooting in 86400 seconds..