hid-u2fzero 0003:10C4:8ACF.0001: U2F Zero LED initialised
Unable to handle kernel paging request at virtual address dfff800000000015
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
[dfff800000000015] address between user and kernel address ranges
Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 4182 Comm: kworker/0:10 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: usb_hub_wq hub_event
pstate: 00400005 (nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : u2fzero_recv drivers/hid/hid-u2fzero.c:116 [inline]
pc : u2fzero_rng_read+0x1a4/0x53c drivers/hid/hid-u2fzero.c:202
lr : u2fzero_recv drivers/hid/hid-u2fzero.c:114 [inline]
lr : u2fzero_rng_read+0x180/0x53c drivers/hid/hid-u2fzero.c:202
sp : ffff80001f886540
x29: ffff80001f8866a0 x28: ffff700003f10cb0 x27: 00000000000000a8
x26: ffff0000d2e40088 x25: ffff0000d2e403e0 x24: ffff0000d2e40080
x23: ffff80001f8865a0 x22: 1fffe0001a5c807c x21: 1fffe0001a5c8011
x20: dfff800000000000 x19: ffff0000d2e40320 x18: 0000000000000000
x17: ffff800016cf0000 x16: ffff8000082b559c x15: ffff8000167d04c0
x14: ffff0000d8592540 x13: dfff800000000000 x12: ffff60001810ad98
x11: 1fffe0001810ad90 x10: 0000000000000001 x9 : 0000000000000001
x8 : 0000000000000015 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffff800016f4ede0 x4 : 000000000000000a x3 : 0000000000000030
x2 : 0000000000000001 x1 : 0000000000000000 x0 : ffff0000c0856c86
Call trace:
 u2fzero_recv drivers/hid/hid-u2fzero.c:116 [inline]
 u2fzero_rng_read+0x1a4/0x53c drivers/hid/hid-u2fzero.c:202
 rng_get_data drivers/char/hw_random/core.c:196 [inline]
 add_early_randomness+0x88/0x16c drivers/char/hw_random/core.c:74
 hwrng_register+0x420/0x4c8 drivers/char/hw_random/core.c:526
 devm_hwrng_register+0x50/0xcc drivers/char/hw_random/core.c:597
 u2fzero_init_hwrng+0x108/0x144 drivers/hid/hid-u2fzero.c:245
 u2fzero_probe+0x260/0x2e0 drivers/hid/hid-u2fzero.c:336
 hid_device_probe+0x230/0x338 drivers/hid/hid-core.c:2309
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x180/0x314 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x274/0x4c4 drivers/base/dd.c:907
 bus_for_each_drv+0x150/0x1d8 drivers/base/bus.c:429
 __device_attach+0x2a8/0x3d4 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c4 drivers/base/bus.c:489
 device_add+0xb04/0xf94 drivers/base/core.c:3412
 hid_add_device+0x310/0x4d4 drivers/hid/hid-core.c:2461
 usbhid_probe+0x858/0xba4 drivers/hid/usbhid/hid-core.c:1424
 usb_probe_interface+0x4fc/0x994 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x180/0x314 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x274/0x4c4 drivers/base/dd.c:907
 bus_for_each_drv+0x150/0x1d8 drivers/base/bus.c:429
 __device_attach+0x2a8/0x3d4 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c4 drivers/base/bus.c:489
 device_add+0xb04/0xf94 drivers/base/core.c:3412
 usb_set_configuration+0x15b8/0x1b2c drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x8c/0x144 drivers/usb/core/generic.c:238
 usb_probe_device+0x120/0x25c drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x26c/0xaec drivers/base/dd.c:595
 __driver_probe_device+0x180/0x314 drivers/base/dd.c:755
 driver_probe_device+0x78/0x34c drivers/base/dd.c:785
 __device_attach_driver+0x274/0x4c4 drivers/base/dd.c:907
 bus_for_each_drv+0x150/0x1d8 drivers/base/bus.c:429
 __device_attach+0x2a8/0x3d4 drivers/base/dd.c:979
 device_initial_probe+0x24/0x34 drivers/base/dd.c:1028
 bus_probe_device+0xbc/0x1c4 drivers/base/bus.c:489
 device_add+0xb04/0xf94 drivers/base/core.c:3412
 usb_new_device+0x7ec/0x1164 drivers/usb/core/hub.c:2604
 hub_port_connect drivers/usb/core/hub.c:5467 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5607 [inline]
 port_event drivers/usb/core/hub.c:5753 [inline]
 hub_event+0x20cc/0x4188 drivers/usb/core/hub.c:5835
 process_one_work+0x79c/0x1140 kernel/workqueue.c:2310
 worker_thread+0x8f4/0x101c kernel/workqueue.c:2457
 kthread+0x374/0x454 kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870
Code: 966a13d3 f9400348 9102a11b d343ff68 (38746908) 
---[ end trace 32466cd53499800d ]---
----------------
Code disassembly (best guess):
   0:	966a13d3 	bl	0xfffffffff9a84f4c
   4:	f9400348 	ldr	x8, [x26]
   8:	9102a11b 	add	x27, x8, #0xa8
   c:	d343ff68 	lsr	x8, x27, #3
* 10:	38746908 	ldrb	w8, [x8, x20] <-- trapping instruction