vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:892
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Bluetooth: Can't allocate HCI device
Unable to handle kernel paging request at virtual address dfff800000000021
KASAN: null-ptr-deref in range [0x0000000000000108-0x000000000000010f]
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
[dfff800000000021] address between user and kernel address ranges
Internal error: Oops: 0000000096000005 [#1]  SMP
Modules linked in:
CPU: 0 UID: 0 PID: 9285 Comm: syz.4.470 Not tainted 6.15.0-rc6-syzkaller-gc919f08732cc #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : bcsp_recv+0xf4/0x11c0 drivers/bluetooth/hci_bcsp.c:590
lr : bcsp_recv+0xc4/0x11c0 drivers/bluetooth/hci_bcsp.c:589
sp : ffff80009fc37a80
x29: ffff80009fc37b70 x28: 000000000000017c x27: 0000000000000178
x26: 000000000000002f x25: dfff800000000000 x24: 0000000000000110
x23: 0000000000000021 x22: 0000000000000108 x21: ffff0000f11239b8
x20: ffff80009fc37c40 x19: 0000000000000001 x18: 0000000000000000
x17: ffff800092f37000 x16: ffff80008051b90c x15: ffff800092ac0bb8
x14: ffff0000c9354790 x13: ffff800092d36c40 x12: ffff0000c93547b0
x11: 0200000000000000 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : 0000000000000182 x7 : ffff800087c0048c x6 : 0000000000000000
x5 : ffff8000932c64d8 x4 : 0000000000000008 x3 : 0000000000000001
x2 : 0000000000000001 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 bcsp_recv+0xf4/0x11c0 drivers/bluetooth/hci_bcsp.c:-1 (P)
 hci_uart_tty_receive+0x140/0x1d4 drivers/bluetooth/hci_ldisc.c:627
 tiocsti+0x23c/0x2f0 drivers/tty/tty_io.c:2299
 tty_ioctl+0x35c/0xd8c drivers/tty/tty_io.c:2716
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:906 [inline]
 __se_sys_ioctl fs/ioctl.c:892 [inline]
 __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:892
 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49
 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132
 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151
 el0_svc+0x58/0x17c arch/arm64/kernel/entry-common.c:767
 el0t_64_sync_handler+0x78/0x108 arch/arm64/kernel/entry-common.c:786
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600
Code: d343ff7a a903efe8 f9002ffc a904ebf7 (38796ae8) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	d343ff7a 	lsr	x26, x27, #3
   4:	a903efe8 	stp	x8, x27, [sp, #56]
   8:	f9002ffc 	str	x28, [sp, #88]
   c:	a904ebf7 	stp	x23, x26, [sp, #72]
* 10:	38796ae8 	ldrb	w8, [x23, x25] <-- trapping instruction