Warning: Permanently added '10.128.1.112' (ED25519) to the list of known hosts. executing program [ 68.615614][ T788] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 68.798300][ T788] usb 1-1: config 0 interface 0 altsetting 1 has 1 endpoint descriptor, different from the interface descriptor's value: 2 [ 68.811238][ T788] usb 1-1: config 0 interface 0 has no altsetting 0 [ 68.817975][ T788] usb 1-1: New USB device found, idVendor=20a0, idProduct=4287, bcdDevice= 0.00 [ 68.827022][ T788] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 68.837740][ T788] usb 1-1: config 0 descriptor?? [ 69.257672][ T788] hid-u2fzero 0003:20A0:4287.0001: hidraw0: USB HID vff.f9 Device [HID 20a0:4287] on usb-dummy_hcd.0-1/input0 [ 69.271716][ T788] hid-u2fzero 0003:20A0:4287.0001: NitroKey U2F LED initialised [ 69.279807][ T788] general protection fault, probably for non-canonical address 0xdffffc0000000015: 0000 [#1] PREEMPT SMP KASAN [ 69.291540][ T788] KASAN: null-ptr-deref in range [0x00000000000000a8-0x00000000000000af] [ 69.299986][ T788] CPU: 0 PID: 788 Comm: kworker/0:2 Not tainted 6.6.94-syzkaller #0 [ 69.308001][ T788] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 69.318097][ T788] Workqueue: usb_hub_wq hub_event [ 69.323279][ T788] RIP: 0010:u2fzero_rng_read+0x233/0x630 [ 69.328959][ T788] Code: 10 42 80 3c 38 00 74 08 48 89 df e8 27 97 fa f9 41 bf a8 00 00 00 4c 03 3b 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <80> 3c 08 00 74 08 4c 89 ff e8 9f 97 fa f9 48 8d 44 24 60 49 89 07 [ 69.348584][ T788] RSP: 0018:ffffc90003966780 EFLAGS: 00010202 [ 69.354651][ T788] RAX: 0000000000000015 RBX: ffff888147277030 RCX: dffffc0000000000 [ 69.362613][ T788] RDX: 0000000000000000 RSI: ffffc900039668a0 RDI: ffff888030f2fb68 [ 69.370595][ T788] RBP: ffffc90003966998 R08: 0000000000000000 R09: 0000000000000000 [ 69.378568][ T788] R10: 0000000000000000 R11: 0000000000000000 R12: ffff888147277300 [ 69.386541][ T788] R13: 1ffff9200072ccf8 R14: ffff888147277418 R15: 00000000000000a8 [ 69.394513][ T788] FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 [ 69.403529][ T788] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 69.410202][ T788] CR2: 00005592f825a9b8 CR3: 0000000075438000 CR4: 00000000003506f0 [ 69.418190][ T788] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 69.426174][ T788] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 69.434147][ T788] Call Trace: [ 69.437430][ T788] [ 69.440365][ T788] ? u2fzero_brightness_set+0x2a0/0x2a0 [ 69.445923][ T788] ? add_early_randomness+0x1e/0x1a0 [ 69.451218][ T788] ? mutex_unlock+0x10/0x10 [ 69.455728][ T788] ? u2fzero_brightness_set+0x2a0/0x2a0 [ 69.461362][ T788] add_early_randomness+0x7a/0x1a0 [ 69.466482][ T788] hwrng_register+0x3db/0x4a0 [ 69.471165][ T788] devm_hwrng_register+0x47/0xb0 [ 69.476111][ T788] u2fzero_probe+0x348/0x460 [ 69.480704][ T788] hid_device_probe+0x293/0x5b0 [ 69.485572][ T788] ? hid_uevent+0x350/0x350 [ 69.490256][ T788] really_probe+0x25b/0xb40 [ 69.494772][ T788] ? pm_runtime_barrier+0x14b/0x1c0 [ 69.499975][ T788] __driver_probe_device+0x18c/0x330 [ 69.505265][ T788] driver_probe_device+0x4f/0x420 [ 69.510298][ T788] __device_attach_driver+0x2ca/0x520 [ 69.515679][ T788] bus_for_each_drv+0x24b/0x2d0 [ 69.520640][ T788] ? coredump_store+0x90/0x90 [ 69.525323][ T788] ? bus_find_device+0x320/0x320 [ 69.530445][ T788] __device_attach+0x2b5/0x400 [ 69.535221][ T788] ? device_attach+0x20/0x20 [ 69.539818][ T788] ? do_raw_spin_unlock+0x121/0x230 [ 69.545029][ T788] bus_probe_device+0x180/0x260 [ 69.549890][ T788] device_add+0x85b/0xc20 [ 69.554246][ T788] hid_add_device+0x38d/0x530 [ 69.558931][ T788] usbhid_probe+0xe02/0x1220 [ 69.563536][ T788] usb_probe_interface+0x5a4/0xb00 [ 69.568651][ T788] ? usb_register_driver+0x3d0/0x3d0 [ 69.573936][ T788] really_probe+0x25b/0xb40 [ 69.578448][ T788] ? pm_runtime_barrier+0x14b/0x1c0 [ 69.583655][ T788] __driver_probe_device+0x18c/0x330 [ 69.588946][ T788] driver_probe_device+0x4f/0x420 [ 69.593975][ T788] __device_attach_driver+0x2ca/0x520 [ 69.599356][ T788] bus_for_each_drv+0x24b/0x2d0 [ 69.604211][ T788] ? coredump_store+0x90/0x90 [ 69.608899][ T788] ? bus_find_device+0x320/0x320 [ 69.613843][ T788] __device_attach+0x2b5/0x400 [ 69.618616][ T788] ? device_attach+0x20/0x20 [ 69.623209][ T788] ? __kmem_cache_free+0xba/0x1f0 [ 69.628237][ T788] ? do_raw_spin_unlock+0x121/0x230 [ 69.633444][ T788] bus_probe_device+0x180/0x260 [ 69.638301][ T788] device_add+0x85b/0xc20 [ 69.642632][ T788] usb_set_configuration+0x1a79/0x20c0 [ 69.648127][ T788] usb_generic_driver_probe+0x8d/0x150 [ 69.653599][ T788] usb_probe_device+0x13d/0x280 [ 69.658450][ T788] ? usb_register_device_driver+0x230/0x230 [ 69.664429][ T788] really_probe+0x25b/0xb40 [ 69.668942][ T788] ? pm_runtime_barrier+0x14b/0x1c0 [ 69.674145][ T788] __driver_probe_device+0x18c/0x330 [ 69.679439][ T788] driver_probe_device+0x4f/0x420 [ 69.684473][ T788] __device_attach_driver+0x2ca/0x520 [ 69.689853][ T788] bus_for_each_drv+0x24b/0x2d0 [ 69.694710][ T788] ? coredump_store+0x90/0x90 [ 69.699392][ T788] ? bus_find_device+0x320/0x320 [ 69.704336][ T788] __device_attach+0x2b5/0x400 [ 69.709107][ T788] ? device_attach+0x20/0x20 [ 69.713700][ T788] ? __kmem_cache_free+0xba/0x1f0 [ 69.718725][ T788] ? do_raw_spin_unlock+0x121/0x230 [ 69.723936][ T788] bus_probe_device+0x180/0x260 [ 69.728792][ T788] device_add+0x85b/0xc20 [ 69.733123][ T788] usb_new_device+0xa31/0x1630 [ 69.737918][ T788] ? usb_disconnect+0x8a0/0x8a0 [ 69.742769][ T788] ? _raw_spin_unlock_irq+0x23/0x50 [ 69.747976][ T788] ? lockdep_hardirqs_on+0x98/0x150 [ 69.753178][ T788] hub_event+0x2957/0x49c0 [ 69.757624][ T788] ? led_work+0x720/0x720 [ 69.761955][ T788] ? read_lock_is_recursive+0x20/0x20 [ 69.767332][ T788] ? _raw_spin_unlock_irq+0x23/0x50 [ 69.772536][ T788] ? process_scheduled_works+0x957/0x15b0 [ 69.778266][ T788] ? process_scheduled_works+0x957/0x15b0 [ 69.783992][ T788] process_scheduled_works+0xa45/0x15b0 [ 69.789555][ T788] ? assign_work+0x400/0x400 [ 69.794150][ T788] ? assign_work+0x39e/0x400 [ 69.798753][ T788] worker_thread+0xa55/0xfc0 [ 69.803351][ T788] ? _raw_spin_unlock_irqrestore+0xae/0x110 [ 69.809255][ T788] ? _raw_spin_unlock+0x40/0x40 [ 69.814114][ T788] ? _raw_spin_unlock_irqrestore+0x86/0x110 [ 69.820041][ T788] kthread+0x2fa/0x390 [ 69.824141][ T788] ? pr_cont_work+0x560/0x560 [ 69.828841][ T788] ? kthread_blkcg+0xd0/0xd0 [ 69.833441][ T788] ret_from_fork+0x48/0x80 [ 69.837876][ T788] ? kthread_blkcg+0xd0/0xd0 [ 69.842492][ T788] ret_from_fork_asm+0x11/0x20 [ 69.847291][ T788] [ 69.850313][ T788] Modules linked in: [ 69.855318][ T788] ---[ end trace 0000000000000000 ]---