Oops: general protection fault, probably for non-canonical address 0xdffffc0000000013: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f]
CPU: 0 UID: 0 PID: 6566 Comm: syz-executor Not tainted syzkaller #0 PREEMPT_{RT,(full)} 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:klist_put lib/klist.c:212 [inline]
RIP: 0010:klist_del lib/klist.c:230 [inline]
RIP: 0010:klist_remove+0x159/0x340 lib/klist.c:249
Code: 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 bd be 18 f7 4d 8b 26 49 83 e4 fe 49 8d bc 24 98 00 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 9b be 18 f7 49 8b 84 24 98 00 00 00 48 89
RSP: 0018:ffffc9000dd5f620 EFLAGS: 00010202
RAX: 0000000000000013 RBX: ffff888038323d80 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8d6042a7 RDI: 0000000000000098
RBP: ffffc9000dd5f718 R08: ffffffff8f88e1f7 R09: 1ffffffff1f11c3e
R10: dffffc0000000000 R11: fffffbfff1f11c3f R12: 0000000000000000
R13: 1ffff1100be63494 R14: ffff88805f31a4a0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126179000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8386dfda08 CR3: 0000000033abe000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 device_move+0x193/0x740 drivers/base/core.c:4632
 hci_conn_del_sysfs+0xb8/0x1a0 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:173 [inline]
 hci_conn_del+0xc36/0x1230 net/bluetooth/hci_conn.c:1240
 hci_conn_hash_flush+0x191/0x260 net/bluetooth/hci_conn.c:2651
 hci_dev_close_sync+0x821/0x10e0 net/bluetooth/hci_sync.c:5368
 hci_dev_do_close net/bluetooth/hci_core.c:502 [inline]
 hci_unregister_dev+0x21a/0x5a0 net/bluetooth/hci_core.c:2716
 vhci_release+0x155/0x1b0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x461/0xa70 fs/file_table.c:510
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x70f/0x22c0 kernel/exit.c:975
 do_group_exit+0x21b/0x2d0 kernel/exit.c:1117
 get_signal+0x125c/0x1310 kernel/signal.c:3037
 arch_do_signal_or_restart+0xbc/0x830 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
 exit_to_user_mode_loop+0x86/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:238 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
 do_syscall_64+0x33e/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff7698aca6b
Code: Unable to access opcode bytes at 0x7ff7698aca41.
RSP: 002b:00007ffd6f632ed0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffed RBX: 0000000000000005 RCX: 00007ff7698aca6b
RDX: 00007ffd6f632f30 RSI: 0000000000008933 RDI: 0000000000000005
RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000004
R10: 0000000000000004 R11: 0000000000000246 R12: 00007ffd6f632fbc
R13: 00007ff769943378 R14: 00007ff76a654620 R15: 00007ff769943378
 </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+0x159/0x340 lib/klist.c:249
Code: 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 bd be 18 f7 4d 8b 26 49 83 e4 fe 49 8d bc 24 98 00 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 38 00 74 05 e8 9b be 18 f7 49 8b 84 24 98 00 00 00 48 89
RSP: 0018:ffffc9000dd5f620 EFLAGS: 00010202
RAX: 0000000000000013 RBX: ffff888038323d80 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8d6042a7 RDI: 0000000000000098
RBP: ffffc9000dd5f718 R08: ffffffff8f88e1f7 R09: 1ffffffff1f11c3e
R10: dffffc0000000000 R11: fffffbfff1f11c3f R12: 0000000000000000
R13: 1ffff1100be63494 R14: ffff88805f31a4a0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126179000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8386dfda08 CR3: 0000000033abe000 CR4: 00000000003526f0
----------------
Code disassembly (best guess):
   0:	49 c1 ed 03          	shr    $0x3,%r13
   4:	43 80 7c 3d 00 00    	cmpb   $0x0,0x0(%r13,%r15,1)
   a:	74 08                	je     0x14
   c:	4c 89 f7             	mov    %r14,%rdi
   f:	e8 bd be 18 f7       	call   0xf718bed1
  14:	4d 8b 26             	mov    (%r14),%r12
  17:	49 83 e4 fe          	and    $0xfffffffffffffffe,%r12
  1b:	49 8d bc 24 98 00 00 	lea    0x98(%r12),%rdi
  22:	00
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1) <-- trapping instruction
  2f:	74 05                	je     0x36
  31:	e8 9b be 18 f7       	call   0xf718bed1
  36:	49 8b 84 24 98 00 00 	mov    0x98(%r12),%rax
  3d:	00
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89