general protection fault, probably for non-canonical address 0xdffffc000000000b: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
CPU: 1 PID: 4755 Comm: syz.3.104 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x151/0x300 lib/klist.c:249
Code: c0 05 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 91 23 b9 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 73 23 b9 fd 49 8b 47 58 48 89 44 24 08 4c
RSP: 0018:ffffc9000395f9e0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88801e60d940 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc9000395fae0 R08: ffffffff8c93ae23 R09: 1ffffffff19275c4
R10: dffffc0000000000 R11: fffffbfff19275c5 R12: 1ffff1100bcea68c
R13: dffffc0000000000 R14: ffff88805e753460 R15: 0000000000000000
FS:  00007fa8d73d56c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000110c31c02e CR3: 0000000059afa000 CR4: 00000000003526e0
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_dev_close+0xd7/0x180 net/bluetooth/hci_core.c:1877
 sock_do_ioctl+0xfb/0x320 net/socket.c:1147
 sock_ioctl+0x4d2/0x710 net/socket.c:1266
 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: 0033:0x7fa8d919c799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa8d73d5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa8d9416090 RCX: 00007fa8d919c799
RDX: 0000000000000000 RSI: 00000000400448ca RDI: 0000000000000008
RBP: 00007fa8d9232bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa8d9416128 R14: 00007fa8d9416090 R15: 00007ffe49a7df28
 </TASK>
Modules linked in:
---[ end trace 66aacf2c2420426e ]---
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x151/0x300 lib/klist.c:249
Code: c0 05 4d 89 f4 49 c1 ec 03 43 80 3c 2c 00 74 08 4c 89 f7 e8 91 23 b9 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 73 23 b9 fd 49 8b 47 58 48 89 44 24 08 4c
RSP: 0018:ffffc9000395f9e0 EFLAGS: 00010202
RAX: 000000000000000b RBX: ffff88801e60d940 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000058
RBP: ffffc9000395fae0 R08: ffffffff8c93ae23 R09: 1ffffffff19275c4
R10: dffffc0000000000 R11: fffffbfff19275c5 R12: 1ffff1100bcea68c
R13: dffffc0000000000 R14: ffff88805e753460 R15: 0000000000000000
FS:  00007fa8d73d56c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f55355de158 CR3: 0000000059afa000 CR4: 00000000003526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	c0 05 4d 89 f4 49 c1 	rolb   $0xc1,0x49f4894d(%rip)        # 0x49f48954
   7:	ec                   	in     (%dx),%al
   8:	03 43 80             	add    -0x80(%rbx),%eax
   b:	3c 2c                	cmp    $0x2c,%al
   d:	00 74 08 4c          	add    %dh,0x4c(%rax,%rcx,1)
  11:	89 f7                	mov    %esi,%edi
  13:	e8 91 23 b9 fd       	call   0xfdb923a9
  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 73 23 b9 fd       	call   0xfdb923a9
  36:	49 8b 47 58          	mov    0x58(%r15),%rax
  3a:	48 89 44 24 08       	mov    %rax,0x8(%rsp)
  3f:	4c                   	rex.WR