Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts.
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syzkaller login: [ 303.635727][ T72] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[ 303.875686][ T72] usb 1-1: Using ep0 maxpacket: 32
[ 303.995814][ T72] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x85 has invalid maxpacket 1024
[ 304.165826][ T72] usb 1-1: New USB device found, idVendor=12d8, idProduct=0001, bcdDevice=de.85
[ 304.165845][ T72] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[ 304.165858][ T72] usb 1-1: Product: syz
[ 304.165867][ T72] usb 1-1: Manufacturer: syz
[ 304.165876][ T72] usb 1-1: SerialNumber: syz
[ 304.169913][ T72] usb 1-1: config 0 descriptor??
[ 304.196639][ T1295] raw-gadget gadget.0: fail, usb_ep_enable returned -22
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[ 367.474746][ T1186] udevd[1186]: worker [1297] /devices/platform/dummy_hcd.0/usb1/1-1 is taking a long time
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[ 487.561742][ T1186] udevd[1186]: worker [1297] /devices/platform/dummy_hcd.0/usb1/1-1 timeout; kill it
[ 487.561965][ T1186] udevd[1186]: seq 4108 '/devices/platform/dummy_hcd.0/usb1/1-1' killed
[ 487.565625][ T1186] udevd[1186]: worker [1297] terminated by signal 9 (Killed)
[ 487.565664][ T1186] udevd[1186]: worker [1297] failed while handling '/devices/platform/dummy_hcd.0/usb1/1-1'
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[ 572.825590][ T27] INFO: task kworker/0:2:72 blocked for more than 143 seconds.
[ 572.833222][ T27] Not tainted 5.19.0-rc1-syzkaller #0
[ 572.839217][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[ 572.848014][ T27] task:kworker/0:2 state:D stack:23712 pid: 72 ppid: 2 flags:0x00004000
[ 572.857286][ T27] Workqueue: usb_hub_wq hub_event
[ 572.862429][ T27] Call Trace:
[ 572.865782][ T27]
[ 572.868721][ T27] __schedule+0x93c/0x25e0
[ 572.873186][ T27] ? io_schedule_timeout+0x140/0x140
[ 572.878533][ T27] ? lockdep_hardirqs_on+0x79/0x100
[ 572.883764][ T27] schedule+0xd2/0x1f0
[ 572.887908][ T27] schedule_preempt_disabled+0xf/0x20
[ 572.893294][ T27] __mutex_lock+0xa70/0x1350
[ 572.897968][ T27] ? add_early_randomness+0x1a/0x170
[ 572.903275][ T27] ? mutex_lock_io_nested+0x1190/0x1190
[ 572.908898][ T27] ? __mutex_unlock_slowpath+0x157/0x5e0
[ 572.914554][ T27] ? hwrng_init+0x29e/0x350
[ 572.919139][ T27] ? hwrng_manage_rngd+0x160/0x160
[ 572.924274][ T27] add_early_randomness+0x1a/0x170
[ 572.929458][ T27] hwrng_register+0x399/0x510
[ 572.934151][ T27] chaoskey_probe+0x7b5/0xc40
[ 572.938991][ T27] ? chaoskey_suspend+0x40/0x40
[ 572.943860][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 572.949745][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 572.955762][ T27] usb_probe_interface+0x315/0x7f0
[ 572.960909][ T27] ? usb_match_dynamic_id+0x1a0/0x1a0
[ 572.966344][ T27] really_probe+0x23e/0xb90
[ 572.970933][ T27] __driver_probe_device+0x338/0x4d0
[ 572.976311][ T27] ? usb_match_id.part.0+0x15d/0x1b0
[ 572.981621][ T27] driver_probe_device+0x4c/0x1a0
[ 572.986729][ T27] __device_attach_driver+0x20b/0x2f0
[ 572.992129][ T27] ? driver_allows_async_probing+0x170/0x170
[ 572.998193][ T27] bus_for_each_drv+0x15f/0x1e0
[ 573.003064][ T27] ? bus_for_each_dev+0x1d0/0x1d0
[ 573.008157][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 573.013984][ T27] ? lockdep_hardirqs_on+0x79/0x100
[ 573.019244][ T27] ? _raw_spin_unlock_irqrestore+0x3d/0x70
[ 573.025091][ T27] __device_attach+0x1e4/0x530
[ 573.029937][ T27] ? device_driver_attach+0x210/0x210
[ 573.035338][ T27] ? kobject_uevent_env+0x2ac/0x1660
[ 573.040716][ T27] bus_probe_device+0x1e4/0x290
[ 573.045749][ T27] device_add+0xbda/0x1ea0
[ 573.050163][ T27] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0
[ 573.056481][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 573.062313][ T27] usb_set_configuration+0x101e/0x1900
[ 573.067935][ T27] usb_generic_driver_probe+0xba/0x100
[ 573.073505][ T27] usb_probe_device+0xd9/0x2c0
[ 573.078362][ T27] ? usb_driver_release_interface+0x180/0x180
[ 573.084448][ T27] really_probe+0x23e/0xb90
[ 573.089018][ T27] __driver_probe_device+0x338/0x4d0
[ 573.094327][ T27] driver_probe_device+0x4c/0x1a0
[ 573.099767][ T27] __device_attach_driver+0x20b/0x2f0
[ 573.105167][ T27] ? driver_allows_async_probing+0x170/0x170
[ 573.111238][ T27] bus_for_each_drv+0x15f/0x1e0
[ 573.116149][ T27] ? bus_for_each_dev+0x1d0/0x1d0
[ 573.121175][ T27] ? _raw_spin_unlock_irqrestore+0x50/0x70
[ 573.127062][ T27] ? lockdep_hardirqs_on+0x79/0x100
[ 573.132284][ T27] ? _raw_spin_unlock_irqrestore+0x3d/0x70
[ 573.138157][ T27] __device_attach+0x1e4/0x530
[ 573.142937][ T27] ? device_driver_attach+0x210/0x210
[ 573.148379][ T27] ? kobject_uevent_env+0x2ac/0x1660
[ 573.153684][ T27] bus_probe_device+0x1e4/0x290
[ 573.158602][ T27] device_add+0xbda/0x1ea0
[ 573.163031][ T27] ? lockdep_hardirqs_on+0x79/0x100
[ 573.168294][ T27] ? __fw_devlink_link_to_suppliers+0x2d0/0x2d0
[ 573.174552][ T27] ? add_device_randomness+0xb4/0xe0
[ 573.180101][ T27] usb_new_device.cold+0x641/0x1091
[ 573.185344][ T27] ? hub_disconnect+0x510/0x510
[ 573.190272][ T27] ? rwlock_bug.part.0+0x90/0x90
[ 573.195237][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 573.200586][ T27] ? _raw_spin_unlock_irq+0x1f/0x40
[ 573.205828][ T27] hub_event+0x25d5/0x4690
[ 573.210262][ T27] ? hub_port_debounce+0x3c0/0x3c0
[ 573.215384][ T27] ? lock_release+0x780/0x780
[ 573.220155][ T27] ? lock_downgrade+0x6e0/0x6e0
[ 573.225025][ T27] ? do_raw_spin_lock+0x120/0x2a0
[ 573.230119][ T27] process_one_work+0x996/0x1610
[ 573.235070][ T27] ? pwq_dec_nr_in_flight+0x2a0/0x2a0
[ 573.240533][ T27] ? rwlock_bug.part.0+0x90/0x90
[ 573.245599][ T27] ? _raw_spin_lock_irq+0x41/0x50
[ 573.250629][ T27] worker_thread+0x665/0x1080
[ 573.255310][ T27] ? __kthread_parkme+0x15f/0x220
[ 573.260396][ T27] ? process_one_work+0x1610/0x1610
[ 573.265696][ T27] kthread+0x2ef/0x3a0
[ 573.269785][ T27] ? kthread_complete_and_exit+0x40/0x40
[ 573.275440][ T27] ret_from_fork+0x1f/0x30
[ 573.279983][ T27]
[ 573.283016][ T27]
[ 573.283016][ T27] Showing all locks held in the system:
[ 573.290816][ T27] 1 lock held by khungtaskd/27:
[ 573.295773][ T27] #0: ffffffff87a94840 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260
[ 573.305951][ T27] 6 locks held by kworker/0:2/72:
[ 573.310986][ T27] #0: ffff888109bee138 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610
[ 573.321772][ T27] #1: ffffc90001087da8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610
[ 573.333381][ T27] #2: ffff88810f85a190 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c1/0x4690
[ 573.342345][ T27] #3: ffff88811c27a190 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530
[ 573.351690][ T27] #4: ffff88811c27b118 (&dev->mutex){....}-{3:3}, at: __device_attach+0x76/0x530
[ 573.361001][ T27] #5: ffffffff87edbbe8 (reading_mutex){+.+.}-{3:3}, at: add_early_randomness+0x1a/0x170
[ 573.370970][ T27] 1 lock held by hwrng/151:
[ 573.375539][ T27] #0: ffffffff87edbbe8 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0x141/0x370
[ 573.384828][ T27] 2 locks held by getty/1245:
[ 573.389589][ T27] #0: ffff888111247098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80
[ 573.399423][ T27] #1: ffffc900000432e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0
[ 573.409665][ T27]
[ 573.412012][ T27] =============================================
[ 573.412012][ T27]
[ 573.420492][ T27] NMI backtrace for cpu 1
[ 573.424825][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.19.0-rc1-syzkaller #0
[ 573.433058][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 573.443102][ T27] Call Trace:
[ 573.446383][ T27]
[ 573.449306][ T27] dump_stack_lvl+0xcd/0x134
[ 573.453916][ T27] nmi_cpu_backtrace.cold+0x47/0x144
[ 573.459190][ T27] ? lapic_can_unplug_cpu+0x80/0x80
[ 573.464379][ T27] nmi_trigger_cpumask_backtrace+0x1e6/0x230
[ 573.470360][ T27] watchdog+0xc22/0xf90
[ 573.474522][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 573.480503][ T27] kthread+0x2ef/0x3a0
[ 573.484657][ T27] ? kthread_complete_and_exit+0x40/0x40
[ 573.490282][ T27] ret_from_fork+0x1f/0x30
[ 573.494695][ T27]
[ 573.497798][ T27] Sending NMI from CPU 1 to CPUs 0:
[ 573.503031][ C0] NMI backtrace for cpu 0 skipped: idling at acpi_idle_do_entry+0x1c9/0x240
[ 573.504018][ T27] Kernel panic - not syncing: hung_task: blocked tasks
[ 573.519511][ T27] CPU: 1 PID: 27 Comm: khungtaskd Not tainted 5.19.0-rc1-syzkaller #0
[ 573.527742][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 573.537873][ T27] Call Trace:
[ 573.541144][ T27]
[ 573.544073][ T27] dump_stack_lvl+0xcd/0x134
[ 573.548658][ T27] panic+0x2d7/0x636
[ 573.552542][ T27] ? panic_print_sys_info.part.0+0x10b/0x10b
[ 573.558514][ T27] ? irq_work_claim+0x76/0x90
[ 573.563184][ T27] ? lapic_can_unplug_cpu+0x80/0x80
[ 573.568374][ T27] ? irq_work_queue+0x29/0x80
[ 573.573055][ T27] ? __wake_up_klogd.part.0+0x99/0xf0
[ 573.578431][ T27] ? watchdog.cold+0x5/0x143
[ 573.583024][ T27] watchdog.cold+0x16/0x143
[ 573.587525][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80
[ 573.593499][ T27] kthread+0x2ef/0x3a0
[ 573.597556][ T27] ? kthread_complete_and_exit+0x40/0x40
[ 573.603196][ T27] ret_from_fork+0x1f/0x30
[ 573.607627][ T27]
[ 573.610913][ T27] Kernel Offset: disabled
[ 573.615244][ T27] Rebooting in 86400 seconds..