general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 0 PID: 5337 Comm: kworker/0:11 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: events rfkill_op_handler
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x165/0x390 lib/klist.c:249
Code: 80 3c 04 00 74 08 4c 89 f7 e8 b7 17 ba f7 4d 8b 3e 49 83 e7 fe 49 8d 7f 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 90 17 ba f7 49 8b 47 58 48 89 44 24 10 4c 89
RSP: 0000:ffffc90003d5f8c0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88802a85d940 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90003d5f9a8 R08: ffffffff8e087663 R09: 1ffffffff1c10ecc
R10: dffffc0000000000 R11: fffffbfff1c10ecd R12: 1ffff1100ac2e20c
R13: dffffc0000000000 R14: ffff888056171060 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc1fe05dc8 CR3: 00000000295f7000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 device_move+0x18f/0x6f0 drivers/base/core.c:4633
 hci_conn_del_sysfs+0xab/0x160 net/bluetooth/hci_sysfs.c:73
 hci_conn_cleanup+0x575/0x730 net/bluetooth/hci_conn.c:172
 hci_conn_del+0x515/0x720 net/bluetooth/hci_conn.c:1152
 hci_conn_hash_flush+0x203/0x290 net/bluetooth/hci_conn.c:2511
 hci_dev_close_sync+0x933/0xf40 net/bluetooth/hci_sync.c:5246
 hci_dev_do_close net/bluetooth/hci_core.c:528 [inline]
 hci_rfkill_set_block+0x127/0x1f0 net/bluetooth/hci_core.c:935
 rfkill_set_block+0x1c6/0x420 net/rfkill/core.c:345
 rfkill_epo+0x75/0x170 net/rfkill/core.c:454
 __rfkill_handle_global_op net/rfkill/input.c:60 [inline]
 rfkill_op_handler+0x76/0x220 net/rfkill/input.c:108
 process_one_work+0x8a2/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaa2/0x1270 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </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+0x165/0x390 lib/klist.c:249
Code: 80 3c 04 00 74 08 4c 89 f7 e8 b7 17 ba f7 4d 8b 3e 49 83 e7 fe 49 8d 7f 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 90 17 ba f7 49 8b 47 58 48 89 44 24 10 4c 89
RSP: 0000:ffffc90003d5f8c0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88802a85d940 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90003d5f9a8 R08: ffffffff8e087663 R09: 1ffffffff1c10ecc
R10: dffffc0000000000 R11: fffffbfff1c10ecd R12: 1ffff1100ac2e20c
R13: dffffc0000000000 R14: ffff888056171060 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc1fe05dc8 CR3: 00000000303e8000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	80 3c 04 00          	cmpb   $0x0,(%rsp,%rax,1)
   4:	74 08                	je     0xe
   6:	4c 89 f7             	mov    %r14,%rdi
   9:	e8 b7 17 ba f7       	call   0xf7ba17c5
   e:	4d 8b 3e             	mov    (%r14),%r15
  11:	49 83 e7 fe          	and    $0xfffffffffffffffe,%r15
  15:	49 8d 7f 58          	lea    0x58(%r15),%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 90 17 ba f7       	call   0xf7ba17c5
  35:	49 8b 47 58          	mov    0x58(%r15),%rax
  39:	48 89 44 24 10       	mov    %rax,0x10(%rsp)
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89