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: 7699 Comm: syz.5.664 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
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: ae 05 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 be b1 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 a0 b1 c0 fd 49 8b 47 58 48 89 44 24 08 4c
RSP: 0018:ffffc900039df9e0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88802763bb80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc900039dfae0 R08: dffffc0000000000 R09: fffffbfff18e7105
R10: fffffbfff18e7105 R11: 1ffffffff18e7104 R12: 1ffff1100be0198c
R13: dffffc0000000000 R14: ffff88805f00cc60 R15: 0000000000000000
FS:  00007f30a6af06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3c20b2 CR3: 0000000064e82000 CR4: 00000000003506f0
DR0: 0000040000000000 DR1: 000000000000000c DR2: 0000000000000006
DR3: 0000000000000006 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_dev_close+0xd7/0x180 net/bluetooth/hci_core.c:1877
 sock_do_ioctl+0xd3/0x2f0 net/socket.c:1140
 sock_ioctl+0x4ed/0x6e0 net/socket.c:1257
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
 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: 0033:0x7f30a8c88929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f30a6af0038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f30a8eaffa0 RCX: 00007f30a8c88929
RDX: 0000000000000000 RSI: 00000000400448ca RDI: 0000000000000008
RBP: 00007f30a8d0ab39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f30a8eaffa0 R15: 00007fff5eb0c888
 </TASK>
Modules linked in:
---[ end trace 7f7e79cd9a5fe154 ]---
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: ae 05 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 be b1 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 a0 b1 c0 fd 49 8b 47 58 48 89 44 24 08 4c
RSP: 0018:ffffc900039df9e0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88802763bb80 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc900039dfae0 R08: dffffc0000000000 R09: fffffbfff18e7105
R10: fffffbfff18e7105 R11: 1ffffffff18e7104 R12: 1ffff1100be0198c
R13: dffffc0000000000 R14: ffff88805f00cc60 R15: 0000000000000000
FS:  00007f30a6af06c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c3c20b2 CR3: 0000000064e82000 CR4: 00000000003506f0
DR0: 0000040000000000 DR1: 000000000000000c DR2: 0000000000000006
DR3: 0000000000000006 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	ae                   	scas   %es:(%rdi),%al
   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 be b1 c0 fd       	call   0xfdc0b1d6
  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 a0 b1 c0 fd       	call   0xfdc0b1d6
  36:	49 8b 47 58          	mov    0x58(%r15),%rax
  3a:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  3f:	4c                   	rex.WR