Unable to handle kernel paging request at virtual address dfff80000000000f
KASAN: null-ptr-deref in range [0x0000000000000078-0x000000000000007f]
Mem abort info:
  ESR = 0x0000000096000005
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x05: level 1 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
  CM = 0, WnR = 0, TnD = 0, TagAccess = 0
  GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
[dfff80000000000f] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 6094 Comm: syz-executor260 Not tainted 6.7.0-rc4-syzkaller-gd46efae31672 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline]
pc : ida_free+0x16c/0x378 lib/idr.c:511
lr : xa_is_value include/linux/xarray.h:81 [inline]
lr : ida_free+0x158/0x378 lib/idr.c:500
sp : ffff800096fd7780
x29: ffff800096fd7830 x28: 1ffff000122192e4 x27: 1ffff00012dfaef4
x26: dfff800000000000 x25: ffff700012dfaef0 x24: 0000000000000078
x23: 00000000000003ff x22: 0000000000000000 x21: 0000000000000000
x20: 000000000000ffff x19: ffff800096fd77a0 x18: ffff800096fd7420
x17: 000000000000d204 x16: ffff80008052116c x15: ffff700012dfaed4
x14: 1ffff00012dfaed4 x13: 0000000000000004 x12: ffffffffffffffff
x11: ffff700012dfaed4 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 000000000000000f x7 : 0000000000000000 x6 : 0000000000000000
x5 : 0000000000000020 x4 : 0000000000000000 x3 : ffff800080333d48
x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000
Call trace:
 generic_test_bit include/asm-generic/bitops/generic-non-atomic.h:128 [inline]
 ida_free+0x16c/0x378 lib/idr.c:511
 hci_conn_cleanup net/bluetooth/hci_conn.c:157 [inline]
 hci_conn_del+0x650/0xb0c net/bluetooth/hci_conn.c:1182
 hci_conn_hash_flush+0x184/0x220 net/bluetooth/hci_conn.c:2615
 hci_dev_close_sync+0x7e0/0xf30 net/bluetooth/hci_sync.c:5021
 hci_dev_do_close net/bluetooth/hci_core.c:554 [inline]
 hci_unregister_dev+0x1e8/0x4ac net/bluetooth/hci_core.c:2739
 vhci_release+0x7c/0xd0 drivers/bluetooth/hci_vhci.c:672
 __fput+0x308/0x90c fs/file_table.c:394
 ____fput+0x20/0x30 fs/file_table.c:422
 task_work_run+0x230/0x2e0 kernel/task_work.c:180
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x620/0x1f74 kernel/exit.c:871
 do_group_exit+0x194/0x22c kernel/exit.c:1021
 __do_sys_exit_group kernel/exit.c:1032 [inline]
 __se_sys_exit_group kernel/exit.c:1030 [inline]
 pid_child_should_wake+0x0/0x1dc kernel/exit.c:1030
 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155
 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678
 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595
Code: d343fee8 927d0d08 8b0802d8 d343ff08 (387a6908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d343fee8 	lsr	x8, x23, #3
   4:	927d0d08 	and	x8, x8, #0x78
   8:	8b0802d8 	add	x24, x22, x8
   c:	d343ff08 	lsr	x8, x24, #3
* 10:	387a6908 	ldrb	w8, [x8, x26] <-- trapping instruction