mcp2221 0003:04D8:00DD.0001: unknown main item tag 0x0
mcp2221 0003:04D8:00DD.0001: USB HID v0.00 Device [HID 04d8:00dd] on usb-dummy_hcd.0-1/input0
Unable to handle kernel paging request at virtual address dfff800000000000
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
Mem abort info:
  ESR = 0x0000000096000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x06: level 2 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
[dfff800000000000] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 3876 Comm: kworker/0:3 Not tainted 6.1.101-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
Workqueue: usb_hub_wq hub_event
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : mcp_smbus_xfer+0x64/0xf4c drivers/hid/hid-mcp2221.c:418
lr : mcp_smbus_xfer+0x44/0xf4c drivers/hid/hid-mcp2221.c:414
sp : ffff800020185ee0
x29: ffff800020185ee0 x28: 0000000000000000 x27: dfff800000000000
x26: 1fffe0001b1a2036 x25: 0000000000000000 x24: 0000000000000000
x23: 0000000000000000 x22: 0000000000000018 x21: 0000000000000000
x20: 1ffff00002b27e40 x19: 0000000000000000 x18: ffff800020185ce0
x17: ffff800018a96000 x16: ffff800012285134 x15: ffff80001857bf80
x14: ffff0000d8080a78 x13: dfff800000000000 x12: 0000000000100000
x11: 00000000000fffff x10: ffff80002c0cb000 x9 : ffff80000fa01544
x8 : 0000000000000000 x7 : 1111111111111111 x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000000 x1 : 0000000000000018 x0 : ffff0000d8d10088
Call trace:
 mcp_smbus_xfer+0x64/0xf4c drivers/hid/hid-mcp2221.c:418
 __i2c_smbus_xfer+0x5b4/0x2dc8 drivers/i2c/i2c-core-smbus.c:590
 i2c_smbus_xfer+0x210/0x31c drivers/i2c/i2c-core-smbus.c:545
 i2c_default_probe+0x1c0/0x248
 i2c_detect_address drivers/i2c/i2c-core-base.c:2411 [inline]
 i2c_detect drivers/i2c/i2c-core-base.c:2486 [inline]
 i2c_do_add_adapter+0x3c4/0x8d4 drivers/i2c/i2c-core-base.c:1374
 __process_new_adapter+0x28/0x3c drivers/i2c/i2c-core-base.c:1381
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 i2c_register_adapter+0xd08/0x1004 drivers/i2c/i2c-core-base.c:1545
 i2c_add_adapter+0x170/0x250
 mcp2221_probe+0x240/0x56c drivers/hid/hid-mcp2221.c:882
 hid_device_probe+0x238/0x328 drivers/hid/hid-core.c:2630
 really_probe+0x394/0xacc drivers/base/dd.c:639
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:785
 driver_probe_device+0x78/0x330 drivers/base/dd.c:815
 __device_attach_driver+0x2a8/0x4f4 drivers/base/dd.c:943
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:1015
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1064
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3689
 hid_add_device+0x318/0x4a8 drivers/hid/hid-core.c:2782
 usbhid_probe+0x864/0xba4 drivers/hid/usbhid/hid-core.c:1424
 usb_probe_interface+0x500/0x984 drivers/usb/core/driver.c:396
 really_probe+0x394/0xacc drivers/base/dd.c:639
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:785
 driver_probe_device+0x78/0x330 drivers/base/dd.c:815
 __device_attach_driver+0x2a8/0x4f4 drivers/base/dd.c:943
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:1015
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1064
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3689
 usb_set_configuration+0x15c0/0x1b40 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x8c/0x148 drivers/usb/core/generic.c:238
 usb_probe_device+0x120/0x25c drivers/usb/core/driver.c:293
 really_probe+0x394/0xacc drivers/base/dd.c:639
 __driver_probe_device+0x194/0x3b4 drivers/base/dd.c:785
 driver_probe_device+0x78/0x330 drivers/base/dd.c:815
 __device_attach_driver+0x2a8/0x4f4 drivers/base/dd.c:943
 bus_for_each_drv+0x158/0x1e0 drivers/base/bus.c:427
 __device_attach+0x2f0/0x480 drivers/base/dd.c:1015
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1064
 bus_probe_device+0xbc/0x1c8 drivers/base/bus.c:487
 device_add+0xae0/0xef4 drivers/base/core.c:3689
 usb_new_device+0x908/0x1440 drivers/usb/core/hub.c:2620
 hub_port_connect drivers/usb/core/hub.c:5477 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5617 [inline]
 port_event drivers/usb/core/hub.c:5773 [inline]
 hub_event+0x243c/0x42e4 drivers/usb/core/hub.c:5855
 process_one_work+0x7ac/0x1404 kernel/workqueue.c:2292
 process_scheduled_works kernel/workqueue.c:2355 [inline]
 worker_thread+0xb6c/0xfec kernel/workqueue.c:2441
 kthread+0x250/0x2d8 kernel/kthread.c:376
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:864
Code: aa1303e0 963dee53 f9400273 d343fe7c (387b6b88) 
---[ end trace 0000000000000000 ]---
----------------
Code disassembly (best guess):
   0:	aa1303e0 	mov	x0, x19
   4:	963dee53 	bl	0xfffffffff8f7b950
   8:	f9400273 	ldr	x19, [x19]
   c:	d343fe7c 	lsr	x28, x19, #3
* 10:	387b6b88 	ldrb	w8, [x28, x27] <-- trapping instruction