Unable to handle kernel paging request at virtual address dfff80000000000b
KASAN: null-ptr-deref in range [0x0000000000000058-0x000000000000005f]
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
[dfff80000000000b] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 1 UID: 0 PID: 4721 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/07/2026
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : klist_put+0x50/0x11c lib/klist.c:212
lr : klist_put+0x2c/0x11c lib/klist.c:210
sp : ffff8000997c7640
x29: ffff8000997c7640 x28: 1fffe0001a185a38 x27: 1fffe00019e5f4ff
x26: ffff0000cf2fa7f8 x25: ffff0000dc229d40 x24: 1fffe0001b3eb78c
x23: dfff800000000000 x22: ffff80008a15fa00 x21: 0000000000000001
x20: 0000000000000000 x19: ffff0000d9f5bc60 x18: 00000000ffffffff
x17: ffff80008a7c2000 x16: 0000000000000004 x15: ffff80008a34bda0
x14: ffff80008a5c1e28 x13: 0000000000000001 x12: 0000000000000000
x11: 0000000000000000 x10: 0000000000000001 x9 : 0000000000000000
x8 : 000000000000000b x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff80008aa1a2c0 x4 : 0000000000000008 x3 : ffff80008046a5e0
x2 : 0000000000000001 x1 : ffff0000dc229d40 x0 : 0000000000000000
Call trace:
 klist_put+0x50/0x11c lib/klist.c:212 (P)
 klist_del lib/klist.c:230 [inline]
 klist_remove+0x120/0x260 lib/klist.c:249
 device_move+0x164/0x5a4 drivers/base/core.c:4698
 hci_conn_del_sysfs+0xb4/0x194 net/bluetooth/hci_sysfs.c:75
 hci_conn_cleanup net/bluetooth/hci_conn.c:170 [inline]
 hci_conn_del+0x9d8/0xf44 net/bluetooth/hci_conn.c:1308
 hci_conn_hash_flush+0x17c/0x238 net/bluetooth/hci_conn.c:2736
 hci_dev_close_sync+0x5e0/0xe38 net/bluetooth/hci_sync.c:5513
 hci_dev_do_close+0x34/0xbc net/bluetooth/hci_core.c:499
 hci_unregister_dev+0x1fc/0x4bc net/bluetooth/hci_core.c:2678
 vhci_release+0x12c/0x17c drivers/bluetooth/hci_vhci.c:700
 __fput+0x338/0x74c fs/file_table.c:512
 ____fput+0x20/0x30 fs/file_table.c:540
 task_work_run+0x1cc/0x25c kernel/task_work.c:233
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x58c/0x1a74 kernel/exit.c:1009
 do_group_exit+0x198/0x238 kernel/exit.c:1152
 __do_sys_exit_group kernel/exit.c:1163 [inline]
 __se_sys_exit_group kernel/exit.c:1161 [inline]
 pid_child_should_wake+0x0/0x104 kernel/exit.c:1161
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x244 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0xec/0x23c arch/arm64/kernel/syscall.c:121
 do_el0_svc+0x4c/0x5c arch/arm64/kernel/syscall.c:140
 el0_svc+0x64/0x260 arch/arm64/kernel/entry-common.c:758
 el0t_64_sync_handler+0x44/0x104 arch/arm64/kernel/entry-common.c:777
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:590
Code: f9400268 927ff914 91016288 d343fd08 (38776908) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	f9400268 	ldr	x8, [x19]
   4:	927ff914 	and	x20, x8, #0xfffffffffffffffe
   8:	91016288 	add	x8, x20, #0x58
   c:	d343fd08 	lsr	x8, x8, #3
* 10:	38776908 	ldrb	w8, [x8, x23] <-- trapping instruction