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: 25141 Comm: syz-executor 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+0x14a/0x340
Code: 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 69 b2 b2 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 4a b2 b2 f6 49 8b 44 24 58 48 89 44 24 08
RSP: 0018:ffffc90007177820 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88801e643980 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90007177920 R08: ffffffff8f8a2083 R09: 1ffffffff1f14410
R10: dffffc0000000000 R11: fffffbfff1f14411 R12: 0000000000000000
R13: 1ffff11005c5c60c R14: ffff88802e2e3060 R15: dffffc0000000000
FS:  000055556bab0500(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fca951caba0 CR3: 0000000127c04000 CR4: 00000000000006f0
Call Trace:
 <TASK>
 device_move+0x193/0x700
 hci_conn_del_sysfs+0xb8/0x170
 hci_conn_del+0xc33/0x11b0
 hci_conn_hash_flush+0x191/0x230
 hci_dev_close_sync+0xaef/0x1330
 hci_unregister_dev+0x21a/0x510
 vhci_release+0x152/0x1a0
 __fput+0x44c/0xa70
 task_work_run+0x1d4/0x260
 do_exit+0x6b5/0x2300
 do_group_exit+0x21c/0x2d0
 __x64_sys_exit_group+0x3f/0x40
 x64_sys_call+0x21f7/0x2200
 do_syscall_64+0xfa/0x3b0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ffa3ab8ec29
Code: Unable to access opcode bytes at 0x7ffa3ab8ebff.
RSP: 002b:00007ffd305236d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007ffa3ac11c52 RCX: 00007ffa3ab8ec29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000005 R08: 00007ffd30521477 R09: 00007ffd30524930
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd30524930
R13: 00007ffa3ac11c2d R14: 00000000001a67f4 R15: 00007ffd30524970
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_remove+0x14a/0x340
Code: 4d 89 f5 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 69 b2 b2 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 4a b2 b2 f6 49 8b 44 24 58 48 89 44 24 08
RSP: 0018:ffffc90007177820 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88801e643980 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90007177920 R08: ffffffff8f8a2083 R09: 1ffffffff1f14410
R10: dffffc0000000000 R11: fffffbfff1f14411 R12: 0000000000000000
R13: 1ffff11005c5c60c R14: ffff88802e2e3060 R15: dffffc0000000000
FS:  000055556bab0500(0000) GS:ffff8880b8613000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005639b9a29000 CR3: 0000000026084000 CR4: 00000000000006f0
