Oops: general protection fault, probably for non-canonical address 0xdffffc0000000013: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000098-0x000000000000009f]
CPU: 1 UID: 0 PID: 13305 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [L]=SOFTLOCKUP
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+0x14d/0x340 lib/klist.c:249
Code: 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 a9 cd 59 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 87 cd 59 f7 49 8b 84 24 98 00 00 00 48 89
RSP: 0018:ffffc90004537620 EFLAGS: 00010202
RAX: 0000000000000013 RBX: ffff888033fa9e40 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8ce0bc38 RDI: 0000000000000098
RBP: ffffc90004537720 R08: ffffffff8edb3477 R09: 1ffffffff1db668e
R10: dffffc0000000000 R11: fffffbfff1db668f R12: 0000000000000000
R13: 1ffff11004f0ab94 R14: ffff888027855ca0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563d240b0950 CR3: 00000000554e6000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 device_move+0x195/0x740 drivers/base/core.c:4615
 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+0xc36/0x1240 net/bluetooth/hci_conn.c:1234
 hci_conn_hash_flush+0x191/0x260 net/bluetooth/hci_conn.c:2638
 hci_dev_close_sync+0x821/0x1100 net/bluetooth/hci_sync.c:5326
 hci_dev_do_close net/bluetooth/hci_core.c:501 [inline]
 hci_unregister_dev+0x21a/0x5b0 net/bluetooth/hci_core.c:2715
 vhci_release+0x155/0x1b0 drivers/bluetooth/hci_vhci.c:690
 __fput+0x45b/0xa80 fs/file_table.c:468
 task_work_run+0x1d4/0x260 kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x694/0x22f0 kernel/exit.c:971
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1112
 get_signal+0x125d/0x1310 kernel/signal.c:3034
 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
 exit_to_user_mode_loop+0x87/0x4e0 kernel/entry/common.c:75
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
 do_syscall_64+0x2b7/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f49167b15dc
Code: Unable to access opcode bytes at 0x7f49167b15b2.
RSP: 002b:00007fffa7bd7290 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: 0000000000000028 RBX: 00007f4917534620 RCX: 00007f49167b15dc
RDX: 0000000000000028 RSI: 00007f4917534670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fffa7bd72e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f4917534670 R15: 0000000000000000
 </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+0x14d/0x340 lib/klist.c:249
Code: 49 c1 ed 03 43 80 7c 3d 00 00 74 08 4c 89 f7 e8 a9 cd 59 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 87 cd 59 f7 49 8b 84 24 98 00 00 00 48 89
RSP: 0018:ffffc90004537620 EFLAGS: 00010202
RAX: 0000000000000013 RBX: ffff888033fa9e40 RCX: 0000000000000000
RDX: 0000000000000006 RSI: ffffffff8ce0bc38 RDI: 0000000000000098
RBP: ffffc90004537720 R08: ffffffff8edb3477 R09: 1ffffffff1db668e
R10: dffffc0000000000 R11: fffffbfff1db668f R12: 0000000000000000
R13: 1ffff11004f0ab94 R14: ffff888027855ca0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff888126def000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563d240b0950 CR3: 00000000554e6000 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 a9 cd 59 f7       	call   0xf759cdbd
  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 87 cd 59 f7       	call   0xf759cdbd
  36:	49 8b 84 24 98 00 00 	mov    0x98(%r12),%rax
  3d:	00
  3e:	48                   	rex.W
  3f:	89                   	.byte 0x89