Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 0 UID: 0 PID: 12182 Comm: syz.3.1337 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
RIP: 0010:klist_remove+0x156/0x340
Code: 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 5d 06 88 f6 4d 8b 26 49 83 e4 fe 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 3e 06 88 f6 49 8b 44 24 58 48 89 44 24 08
RSP: 0018:ffffc90006f57960 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888170cd5940 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90006f57a60 R08: ffffffff90195123 R09: 1ffffffff2032a24
R10: dffffc0000000000 R11: fffffbfff2032a25 R12: 0000000000000000
R13: 1ffff1102254a78c R14: ffff888112a53c60 R15: dffffc0000000000
FS:  00007f74f72fd6c0(0000) GS:ffff88818dc1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562fdabcf950 CR3: 0000000172b18000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 device_move+0x18e/0x720
 hci_conn_del_sysfs+0xb8/0x1a0
 hci_conn_del+0xc3d/0x1200
 hci_conn_hash_flush+0x189/0x260
 hci_dev_close_sync+0x7fc/0x10a0
 hci_dev_close+0x108/0x260
 sock_do_ioctl+0x101/0x320
 sock_ioctl+0x57a/0x7e0
 __se_sys_ioctl+0xfc/0x170
 do_syscall_64+0x174/0x580
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f74f639ce59
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f74f72fd028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f74f6615fa0 RCX: 00007f74f639ce59
RDX: 0000000000000000 RSI: 00000000400448ca RDI: 0000000000000006
RBP: 00007f74f6432e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f74f6616038 R14: 00007f74f6615fa0 R15: 00007ffe9dadc508
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_remove+0x156/0x340
Code: 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 5d 06 88 f6 4d 8b 26 49 83 e4 fe 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 3e 06 88 f6 49 8b 44 24 58 48 89 44 24 08
RSP: 0018:ffffc90006f57960 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff888170cd5940 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90006f57a60 R08: ffffffff90195123 R09: 1ffffffff2032a24
R10: dffffc0000000000 R11: fffffbfff2032a25 R12: 0000000000000000
R13: 1ffff1102254a78c R14: ffff888112a53c60 R15: dffffc0000000000
FS:  00007f74f72fd6c0(0000) GS:ffff88818dc1c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000562fdabcf950 CR3: 0000000172b18000 CR4: 00000000000006f0
