Oops: general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 0 UID: 0 PID: 6862 Comm: syz.3.24 Not tainted 6.12.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x1e8/0x480 lib/klist.c:249
Code: 3c 06 00 74 08 4c 89 ff e8 85 42 b1 f6 4d 8b 27 49 83 e4 fe 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 5d 42 b1 f6 4d 8b 6c 24 58 4c 89 e7 e8 70 3a
RSP: 0018:ffffc90003fa7620 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffffffff8f56e888 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90003fa7708 R08: ffffffff8f56e823 R09: 1ffffffff1eadd04
R10: dffffc0000000000 R11: fffffbfff1eadd05 R12: 0000000000000000
R13: ffffffff8f56e880 R14: 1ffff110060ab48c R15: ffff88803055a460
FS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d6ca0f5e8 CR3: 000000007bba4000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_move+0x1b4/0x710 drivers/base/core.c:4643
 hci_conn_del_sysfs+0xac/0x160 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:174 [inline]
 hci_conn_del+0x8c4/0xc40 net/bluetooth/hci_conn.c:1164
 hci_conn_hash_flush+0x18e/0x240 net/bluetooth/hci_conn.c:2699
 hci_dev_close_sync+0xa42/0x11c0 net/bluetooth/hci_sync.c:5212
 hci_dev_do_close net/bluetooth/hci_core.c:483 [inline]
 hci_unregister_dev+0x20b/0x510 net/bluetooth/hci_core.c:2698
 vhci_release+0x80/0xd0 drivers/bluetooth/hci_vhci.c:664
 __fput+0x23c/0xa50 fs/file_table.c:450
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:938
 do_group_exit+0x207/0x2c0 kernel/exit.c:1087
 get_signal+0x16a6/0x1740 kernel/signal.c:3016
 arch_do_signal_or_restart+0x96/0x830 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
 irqentry_exit_to_user_mode+0x7d/0x250 kernel/entry/common.c:231
 exc_page_fault+0x522/0x810 arch/x86/mm/fault.c:1542
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f2bb8b7e821
Code: Unable to access opcode bytes at 0x7f2bb8b7e7f7.
RSP: 002b:0000000000000010 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007f2bb8d35fa0 RCX: 00007f2bb8b7e819
RDX: 0000000000000000 RSI: 0000000000000010 RDI: 0000000000008000
RBP: 00007f2bb8bf175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f2bb8d35fa0 R15: 00007ffe762cc0f8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x1e8/0x480 lib/klist.c:249
Code: 3c 06 00 74 08 4c 89 ff e8 85 42 b1 f6 4d 8b 27 49 83 e4 fe 49 8d 7c 24 58 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 05 e8 5d 42 b1 f6 4d 8b 6c 24 58 4c 89 e7 e8 70 3a
RSP: 0018:ffffc90003fa7620 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffffffff8f56e888 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90003fa7708 R08: ffffffff8f56e823 R09: 1ffffffff1eadd04
R10: dffffc0000000000 R11: fffffbfff1eadd05 R12: 0000000000000000
R13: ffffffff8f56e880 R14: 1ffff110060ab48c R15: ffff88803055a460
FS:  0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5d6ca0f5e8 CR3: 0000000028564000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	3c 06                	cmp    $0x6,%al
   2:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
   6:	89 ff                	mov    %edi,%edi
   8:	e8 85 42 b1 f6       	call   0xf6b14292
   d:	4d 8b 27             	mov    (%r15),%r12
  10:	49 83 e4 fe          	and    $0xfffffffffffffffe,%r12
  14:	49 8d 7c 24 58       	lea    0x58(%r12),%rdi
  19:	48 89 f8             	mov    %rdi,%rax
  1c:	48 c1 e8 03          	shr    $0x3,%rax
  20:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  27:	fc ff df
* 2a:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1) <-- trapping instruction
  2e:	74 05                	je     0x35
  30:	e8 5d 42 b1 f6       	call   0xf6b14292
  35:	4d 8b 6c 24 58       	mov    0x58(%r12),%r13
  3a:	4c 89 e7             	mov    %r12,%rdi
  3d:	e8                   	.byte 0xe8
  3e:	70 3a                	jo     0x7a