Bluetooth: hci2: failed to register connection device
Oops: general protection fault, probably for non-canonical address 0xdffffc000000004b: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000258-0x000000000000025f]
CPU: 1 UID: 0 PID: 5850 Comm: kworker/u11:2 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Workqueue: hci2 hci_rx_work
RIP: 0010:kasan_byte_accessible+0x12/0x30
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 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 10 87 59 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000322f450 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff895a1c58 RCX: 47dcb6263ad51000
RDX: 0000000000000000 RSI: ffffffff895a1c58 RDI: 000000000000004b
RBP: ffffffff8a833b7a R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a833b30 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31603ff8 CR3: 000000011060a000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 __kasan_check_byte+0x12/0x40
 lock_acquire+0x8d/0x360
 lock_sock_nested+0x48/0x100
 l2cap_sock_new_connection_cb+0x4a/0x2b0
 l2cap_connect_cfm+0x37a/0x1040
 hci_connect_cfm+0x95/0x140
 le_conn_complete_evt+0xcd3/0x1220
 hci_le_conn_complete_evt+0x187/0x450
 hci_event_packet+0x78f/0x1200
 hci_rx_work+0x46a/0xe80
 process_scheduled_works+0xae1/0x17b0
 worker_thread+0x8a0/0xda0
 kthread+0x711/0x8a0
 ret_from_fork+0x3fc/0x770
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:kasan_byte_accessible+0x12/0x30
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 66 0f 1f 00 48 c1 ef 03 48 b8 00 00 00 00 00 fc ff df <0f> b6 04 07 3c 08 0f 92 c0 e9 10 87 59 09 cc 66 66 66 66 66 66 2e
RSP: 0018:ffffc9000322f450 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: ffffffff895a1c58 RCX: 47dcb6263ad51000
RDX: 0000000000000000 RSI: ffffffff895a1c58 RDI: 000000000000004b
RBP: ffffffff8a833b7a R08: 0000000000000001 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffffff8a833b30 R12: 0000000000000000
R13: 0000000000000258 R14: 0000000000000258 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8881a3c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31603ff8 CR3: 000000011060a000 CR4: 00000000000006f0
