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: 10474 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x144/0x2f0 lib/klist.c:249
Code: af 05 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 4e 52 c0 fd 4d 8b 3e 49 83 e7 fe 49 8d 7f 58 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 30 52 c0 fd 49 8b 47 58 48 89 44 24 08 4c
RSP: 0018:ffffc90003a479a0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88807e7b9dc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90003a47a88 R08: dffffc0000000000 R09: fffffbfff18e70c9
R10: fffffbfff18e70c9 R11: 1ffffffff18e70c8 R12: 1ffff1100f324c8c
R13: dffffc0000000000 R14: ffff888079926460 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2238fe9000 CR3: 000000004c9e8000 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:4338
 hci_conn_del_sysfs+0xab/0x160 net/bluetooth/hci_sysfs.c:73
 hci_conn_cleanup+0x4d1/0x680 net/bluetooth/hci_conn.c:140
 hci_conn_del+0x2ab/0x3e0 net/bluetooth/hci_conn.c:678
 hci_conn_hash_flush+0x185/0x220 net/bluetooth/hci_conn.c:1623
 hci_dev_do_close+0x991/0x1030 net/bluetooth/hci_core.c:1795
 hci_unregister_dev+0x2d7/0x580 net/bluetooth/hci_core.c:4040
 vhci_release+0x73/0xc0 drivers/bluetooth/hci_vhci.c:345
 __fput+0x234/0x930 fs/file_table.c:311
 task_work_run+0x125/0x1a0 kernel/task_work.c:188
 exit_task_work include/linux/task_work.h:33 [inline]
 do_exit+0x61e/0x20a0 kernel/exit.c:883
 do_group_exit+0x12e/0x300 kernel/exit.c:997
 __do_sys_exit_group kernel/exit.c:1008 [inline]
 __se_sys_exit_group kernel/exit.c:1006 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f7a73e6c749
Code: Unable to access opcode bytes at RIP 0x7f7a73e6c71f.
RSP: 002b:00007ffdfe973808 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f7a73ef0def RCX: 00007f7a73e6c749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000010 R08: 00007ffdfe9715a6 R09: 00007ffdfe974ac0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdfe974ac0
R13: 00007f7a73ef0d7d R14: 000055555bb6f4a8 R15: 00007ffdfe975b90
 </TASK>
Modules linked in:
---[ end trace a2b810df1417b433 ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x144/0x2f0 lib/klist.c:249
Code: af 05 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 4e 52 c0 fd 4d 8b 3e 49 83 e7 fe 49 8d 7f 58 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 05 e8 30 52 c0 fd 49 8b 47 58 48 89 44 24 08 4c
RSP: 0018:ffffc90003a479a0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88807e7b9dc0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc90003a47a88 R08: dffffc0000000000 R09: fffffbfff18e70c9
R10: fffffbfff18e70c9 R11: 1ffffffff18e70c8 R12: 1ffff1100f324c8c
R13: dffffc0000000000 R14: ffff888079926460 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e2d9425950 CR3: 0000000073bee000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	af                   	scas   %es:(%rdi),%eax
   1:	05 4d 89 f4 49       	add    $0x49f4894d,%eax
   6:	c1 ec 03             	shr    $0x3,%esp
   9:	43 80 3c 2c 00       	cmpb   $0x0,(%r12,%r13,1)
   e:	74 08                	je     0x18
  10:	4c 89 f7             	mov    %r14,%rdi
  13:	e8 4e 52 c0 fd       	call   0xfdc05266
  18:	4d 8b 3e             	mov    (%r14),%r15
  1b:	49 83 e7 fe          	and    $0xfffffffffffffffe,%r15
  1f:	49 8d 7f 58          	lea    0x58(%r15),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 28 00       	cmpb   $0x0,(%rax,%r13,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 30 52 c0 fd       	call   0xfdc05266
  36:	49 8b 47 58          	mov    0x58(%r15),%rax
  3a:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  3f:	4c                   	rex.WR