Warning: Permanently added '10.128.15.195' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 32.635412][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 32.994632][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 33.004582][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 33.014231][ T7] usb 1-1: New USB device found, idVendor=0bda, idProduct=317f, bcdDevice=9d.cc [ 33.023303][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.034618][ T7] usb 1-1: config 0 descriptor?? [ 33.294845][ T7] rtl8192cu: Chip version 0x10 [ 33.953837][ T7] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1 [ 33.960517][ T7] [ 33.962835][ T7] ============================= [ 33.967743][ T7] WARNING: suspicious RCU usage [ 33.972588][ T7] 5.11.0-rc1-syzkaller #0 Not tainted [ 33.978003][ T7] ----------------------------- [ 33.982848][ T7] net/wireless/reg.c:144 suspicious rcu_dereference_check() usage! [ 33.990778][ T7] [ 33.990778][ T7] other info that might help us debug this: [ 33.990778][ T7] [ 34.001059][ T7] [ 34.001059][ T7] rcu_scheduler_active = 2, debug_locks = 1 [ 34.009165][ T7] 5 locks held by kworker/0:1/7: [ 34.014162][ T7] #0: ffff888103f74d38 ((wq_completion)usb_hub_wq){+.+.}-{0:0}, at: process_one_work+0x871/0x1580 [ 34.024943][ T7] #1: ffffc9000007fda8 ((work_completion)(&hub->events)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1580 [ 34.036284][ T7] #2: ffff8881090a3218 (&dev->mutex){....}-{3:3}, at: hub_event+0x1c5/0x42d0 [ 34.045219][ T7] #3: ffff888101949218 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 34.054559][ T7] #4: ffff88810194a1a8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7a/0x4a0 [ 34.063856][ T7] [ 34.063856][ T7] stack backtrace: [ 34.069749][ T7] CPU: 0 PID: 7 Comm: kworker/0:1 Not tainted 5.11.0-rc1-syzkaller #0 [ 34.077886][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.087939][ T7] Workqueue: usb_hub_wq hub_event [ 34.092968][ T7] Call Trace: [ 34.096260][ T7] dump_stack+0x107/0x163 [ 34.100606][ T7] get_wiphy_regdom+0xc3/0xd0 [ 34.105278][ T7] wiphy_apply_custom_regulatory+0x234/0x360 [ 34.111263][ T7] rtl_regd_init+0x36d/0x760 [ 34.115861][ T7] ? rtl_regd_init+0x760/0x760 [ 34.120617][ T7] rtl_init_core+0x83e/0x1a30 [ 34.125285][ T7] ? rtl_free_entries_from_ack_queue+0x320/0x320 [ 34.131720][ T7] ? lockdep_init_map_waits+0x26a/0x700 [ 34.137310][ T7] rtl_usb_probe.cold+0x76b/0xac1 [ 34.142349][ T7] usb_probe_interface+0x315/0x7f0 [ 34.147477][ T7] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 34.152863][ T7] really_probe+0x291/0xde0 [ 34.157364][ T7] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 34.163595][ T7] driver_probe_device+0x26b/0x3d0 [ 34.168695][ T7] __device_attach_driver+0x1d1/0x290 [ 34.174057][ T7] ? driver_allows_async_probing+0x150/0x150 [ 34.180118][ T7] bus_for_each_drv+0x15f/0x1e0 [ 34.184960][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 34.189970][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 34.195940][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 34.200965][ T7] __device_attach+0x228/0x4a0 [ 34.205718][ T7] ? __driver_attach_async_helper+0x330/0x330 [ 34.211915][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 34.217194][ T7] bus_probe_device+0x1e4/0x290 [ 34.222050][ T7] device_add+0xbc4/0x1d90 [ 34.226469][ T7] ? wait_for_completion_io+0x270/0x270 [ 34.232006][ T7] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 34.238238][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 34.244209][ T7] ? _raw_spin_unlock_irqrestore+0x34/0x40 [ 34.250004][ T7] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 34.256237][ T7] usb_set_configuration+0x113c/0x1910 [ 34.261699][ T7] usb_generic_driver_probe+0xba/0x100 [ 34.267163][ T7] usb_probe_device+0xd9/0x2c0 [ 34.271929][ T7] ? usb_driver_release_interface+0x180/0x180 [ 34.278039][ T7] really_probe+0x291/0xde0 [ 34.282637][ T7] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 34.288874][ T7] driver_probe_device+0x26b/0x3d0 [ 34.294013][ T7] __device_attach_driver+0x1d1/0x290 [ 34.299379][ T7] ? driver_allows_async_probing+0x150/0x150 [ 34.305355][ T7] bus_for_each_drv+0x15f/0x1e0 [ 34.310209][ T7] ? bus_for_each_dev+0x1d0/0x1d0 [ 34.315229][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 34.321218][ T7] ? trace_hardirqs_on+0x5b/0x1a0 [ 34.326237][ T7] __device_attach+0x228/0x4a0 [ 34.330998][ T7] ? __driver_attach_async_helper+0x330/0x330 [ 34.337054][ T7] ? kobject_uevent_env+0x2bb/0x1680 [ 34.342328][ T7] bus_probe_device+0x1e4/0x290 [ 34.347187][ T7] device_add+0xbc4/0x1d90 [ 34.351594][ T7] ? __fw_devlink_link_to_suppliers+0x5e0/0x5e0 [ 34.357826][ T7] ? __sanitizer_cov_trace_const_cmp4+0x1c/0x70 [ 34.364058][ T7] usb_new_device.cold+0x71d/0xfe9 [ 34.369175][ T7] ? hub_disconnect+0x510/0x510 [ 34.374016][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 34.378962][ T7] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 34.384934][ T7] hub_event+0x2348/0x42d0 [ 34.389360][ T7] ? hub_port_debounce+0x3b0/0x3b0 [ 34.394461][ T7] ? zap_class+0x51/0x9a0 [ 34.398779][ T7] ? __queue_work+0x5a0/0xeb0 [ 34.403443][ T7] ? lock_release+0x6d0/0x6d0 [ 34.408105][ T7] ? lock_downgrade+0x6d0/0x6d0 [ 34.412951][ T7] ? do_raw_spin_lock+0x120/0x2b0 [ 34.417989][ T7] process_one_work+0x98d/0x1580 [ 34.422933][ T7] ? pwq_dec_nr_in_flight+0x320/0x320 [ 34.428315][ T7] ? rwlock_bug.part.0+0x90/0x90 [ 34.433247][ T7] worker_thread+0x64c/0x1120 [ 34.437939][ T7] ? __kthread_parkme+0x118/0x1d0 [ 34.442953][ T7] ? process_one_work+0x1580/0x1580 [ 34.448141][ T7] kthread+0x38c/0x460 executing program [ 34.452211][ T7] ? _raw_spin_unlock_irq+0x1f/0x30 [ 34.457401][ T7] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 34.463405][ T7] ret_from_fork+0x1f/0x30 [ 34.473927][ T7] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin [ 34.553930][ T7] usb 1-1: USB disconnect, device number 2 [ 34.577350][ T2608] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw_TMSC.bin failed with error -2 [ 34.597295][ T2608] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw.bin failed with error -2 [ 34.620738][ T2608] rtlwifi: Loading alternative firmware rtlwifi/rtl8192cufw.bin [ 34.628525][ T2608] rtlwifi: Selected firmware is not available [ 35.102880][ T7] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 35.462742][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 35.472769][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 35.482602][ T7] usb 1-1: New USB device found, idVendor=0bda, idProduct=317f, bcdDevice=9d.cc [ 35.491645][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.502189][ T7] usb 1-1: config 0 descriptor?? [ 35.772485][ T7] rtl8192cu: Chip version 0x10 [ 36.432063][ T7] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1 [ 36.438945][ T7] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin [ 36.485822][ T7] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw_TMSC.bin failed with error -2 [ 36.506160][ T7] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw.bin failed with error -2 [ 36.515457][ T7] rtlwifi: Loading alternative firmware rtlwifi/rtl8192cufw.bin [ 36.523175][ T7] rtlwifi: Selected firmware is not available executing program [ 36.634723][ T1548] usb 1-1: USB disconnect, device number 3 [ 37.091551][ T1548] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 37.451419][ T1548] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 37.461259][ T1548] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 37.470907][ T1548] usb 1-1: New USB device found, idVendor=0bda, idProduct=317f, bcdDevice=9d.cc [ 37.479989][ T1548] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.491823][ T1548] usb 1-1: config 0 descriptor?? [ 37.761192][ T1548] rtl8192cu: Chip version 0x10 [ 38.420827][ T1548] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1 [ 38.427809][ T1548] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin [ 38.471397][ T1548] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw_TMSC.bin failed with error -2 [ 38.494413][ T1548] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw.bin failed with error -2 [ 38.503955][ T1548] rtlwifi: Loading alternative firmware rtlwifi/rtl8192cufw.bin [ 38.511677][ T1548] rtlwifi: Selected firmware is not available executing program [ 38.623427][ T7] usb 1-1: USB disconnect, device number 4 [ 39.080389][ T7] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 39.440261][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 39.450101][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 39.459741][ T7] usb 1-1: New USB device found, idVendor=0bda, idProduct=317f, bcdDevice=9d.cc [ 39.468854][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.478718][ T7] usb 1-1: config 0 descriptor?? [ 39.760058][ T7] rtl8192cu: Chip version 0x10 [ 40.419720][ T7] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1 [ 40.426576][ T7] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin [ 40.471495][ T7] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw_TMSC.bin failed with error -2 [ 40.488674][ T7] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw.bin failed with error -2 [ 40.504528][ T7] rtlwifi: Loading alternative firmware rtlwifi/rtl8192cufw.bin [ 40.512433][ T7] rtlwifi: Selected firmware is not available executing program [ 40.621344][ T1548] usb 1-1: USB disconnect, device number 5 [ 41.039300][ T1548] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 41.399262][ T1548] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 41.409081][ T1548] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 41.418986][ T1548] usb 1-1: New USB device found, idVendor=0bda, idProduct=317f, bcdDevice=9d.cc [ 41.428084][ T1548] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.437478][ T1548] usb 1-1: config 0 descriptor?? [ 41.719081][ T1548] rtl8192cu: Chip version 0x10 [ 42.368770][ T1548] rtl_usb: rx_max_size 15360, rx_urb_num 8, in_ep 1 [ 42.375808][ T1548] rtl8192cu: Loading firmware rtlwifi/rtl8192cufw_TMSC.bin [ 42.402628][ T1548] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw_TMSC.bin failed with error -2 [ 42.413505][ T1548] usb 1-1: Direct firmware load for rtlwifi/rtl8192cufw.bin failed with error -2 [ 42.429329][ T1548] rtlwifi: Loading alternative firmware rtlwifi/rtl8192cufw.bin [ 42.437019][ T1548] rtlwifi: Selected firmware is not available executing program [ 42.571788][ T7] usb 1-1: USB disconnect, device number 6 [ 43.008446][ T7] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 43.368345][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 43.378126][ T7] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0xE has invalid wMaxPacketSize 0 [ 43.387917][ T7] usb 1-1: New USB device found, idVendor=0bda, idProduct=317f, bcdDevice=9d.cc [ 43.397026][ T7] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.408856][ T7] usb 1-1: config 0 descriptor?? [ 43.678196][ T7] rtl8192cu: Chip version 0x10