Warning: Permanently added '10.128.10.29' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 41.067817][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 41.077829][ T83] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 41.077936][ T5] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 41.085529][ T17] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 41.093254][ T1725] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 41.100306][ T78] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 41.327804][ T12] usb 1-1: Using ep0 maxpacket: 16 [ 41.347819][ T83] usb 6-1: Using ep0 maxpacket: 16 [ 41.347885][ T1725] usb 5-1: Using ep0 maxpacket: 16 [ 41.353073][ T78] usb 3-1: Using ep0 maxpacket: 16 [ 41.358350][ T5] usb 4-1: Using ep0 maxpacket: 16 [ 41.363515][ T17] usb 2-1: Using ep0 maxpacket: 16 [ 41.447955][ T12] usb 1-1: config 0 has an invalid interface number: 133 but max is 0 [ 41.456277][ T12] usb 1-1: config 0 has no interface number 0 [ 41.462662][ T12] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 41.471720][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.481398][ T12] usb 1-1: config 0 descriptor?? [ 41.488005][ T83] usb 6-1: config 0 has an invalid interface number: 133 but max is 0 [ 41.496206][ T83] usb 6-1: config 0 has no interface number 0 [ 41.498169][ T1725] usb 5-1: config 0 has an invalid interface number: 133 but max is 0 [ 41.502393][ T78] usb 3-1: config 0 has an invalid interface number: 133 but max is 0 [ 41.510510][ T1725] usb 5-1: config 0 has no interface number 0 [ 41.518649][ T78] usb 3-1: config 0 has no interface number 0 [ 41.518692][ T17] usb 2-1: config 0 has an invalid interface number: 133 but max is 0 [ 41.518705][ T17] usb 2-1: config 0 has no interface number 0 [ 41.524775][ T5] usb 4-1: config 0 has an invalid interface number: 133 but max is 0 [ 41.530852][ T83] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 41.538997][ T5] usb 4-1: config 0 has no interface number 0 [ 41.545034][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.555899][ T12] rio500 1-1:0.133: USB Rio found at address 2 [ 41.565028][ T17] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 41.570775][ T1725] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 41.576357][ T17] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.582660][ T78] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 41.591650][ T1725] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.593413][ T5] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 41.600775][ T78] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.604858][ T17] usb 2-1: config 0 descriptor?? [ 41.608893][ T5] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.620436][ T1725] usb 5-1: config 0 descriptor?? [ 41.631652][ T78] usb 3-1: config 0 descriptor?? [ 41.636077][ T5] usb 4-1: config 0 descriptor?? [ 41.653035][ T83] usb 6-1: config 0 descriptor?? [ 41.678063][ T17] rio500 2-1:0.133: Second USB Rio at address 2 refused [ 41.685134][ T17] rio500: probe of 2-1:0.133 failed with error -16 [ 41.689039][ T1725] rio500 5-1:0.133: Second USB Rio at address 2 refused [ 41.700010][ T5] rio500 4-1:0.133: Second USB Rio at address 2 refused [ 41.706996][ T5] rio500: probe of 4-1:0.133 failed with error -16 [ 41.719193][ T78] rio500 3-1:0.133: Second USB Rio at address 2 refused [ 41.721142][ T1725] rio500: probe of 5-1:0.133 failed with error -16 [ 41.726177][ T78] rio500: probe of 3-1:0.133 failed with error -16 [ 41.743215][ T83] rio500 6-1:0.133: Second USB Rio at address 2 refused executing program [ 41.757626][ T83] rio500: probe of 6-1:0.133 failed with error -16 [ 41.758399][ T1725] usb 1-1: USB disconnect, device number 2 [ 41.779309][ T1725] rio500 1-1:0.133: USB Rio disconnected. executing program executing program executing program [ 41.863487][ T5] usb 2-1: USB disconnect, device number 2 [ 41.893081][ T78] usb 5-1: USB disconnect, device number 2 [ 41.901636][ T83] usb 4-1: USB disconnect, device number 2 executing program executing program [ 41.919130][ T17] usb 3-1: USB disconnect, device number 2 [ 41.943307][ T12] usb 6-1: USB disconnect, device number 2 [ 42.157798][ T1725] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 42.217794][ T5] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 42.247796][ T78] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 42.257826][ T83] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 42.277790][ T17] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 42.307798][ T12] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 42.397783][ T1725] usb 1-1: Using ep0 maxpacket: 16 [ 42.457885][ T5] usb 2-1: Using ep0 maxpacket: 16 [ 42.497780][ T78] usb 5-1: Using ep0 maxpacket: 16 [ 42.507779][ T83] usb 4-1: Using ep0 maxpacket: 16 [ 42.517811][ T17] usb 3-1: Using ep0 maxpacket: 16 [ 42.527968][ T1725] usb 1-1: config 0 has an invalid interface number: 133 but max is 0 [ 42.536296][ T1725] usb 1-1: config 0 has no interface number 0 [ 42.542478][ T1725] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 42.551564][ T1725] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.559665][ T12] usb 6-1: Using ep0 maxpacket: 16 [ 42.566499][ T1725] usb 1-1: config 0 descriptor?? [ 42.598015][ T5] usb 2-1: config 0 has an invalid interface number: 133 but max is 0 [ 42.606184][ T5] usb 2-1: config 0 has no interface number 0 [ 42.612461][ T5] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 42.617882][ T78] usb 5-1: config 0 has an invalid interface number: 133 but max is 0 [ 42.621549][ T5] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.629764][ T78] usb 5-1: config 0 has no interface number 0 [ 42.639031][ T1725] rio500 1-1:0.133: USB Rio found at address 3 [ 42.644385][ T83] usb 4-1: config 0 has an invalid interface number: 133 but max is 0 [ 42.658225][ T83] usb 4-1: config 0 has no interface number 0 [ 42.664761][ T17] usb 3-1: config 0 has an invalid interface number: 133 but max is 0 [ 42.665292][ T5] usb 2-1: config 0 descriptor?? [ 42.672949][ T17] usb 3-1: config 0 has no interface number 0 [ 42.672987][ T17] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 42.673000][ T17] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.673784][ T17] usb 3-1: config 0 descriptor?? [ 42.697859][ T12] usb 6-1: config 0 has an invalid interface number: 133 but max is 0 [ 42.701143][ T83] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 42.706059][ T12] usb 6-1: config 0 has no interface number 0 [ 42.714245][ T83] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.714395][ T78] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 42.723926][ T12] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 42.729414][ T78] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.730353][ T83] usb 4-1: config 0 descriptor?? [ 42.737537][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 42.738820][ T5] rio500 2-1:0.133: Second USB Rio at address 3 refused [ 42.747503][ T78] usb 5-1: config 0 descriptor?? [ 42.773953][ T5] rio500: probe of 2-1:0.133 failed with error -16 [ 42.795260][ T12] usb 6-1: config 0 descriptor?? [ 42.809230][ T17] rio500 3-1:0.133: Second USB Rio at address 3 refused [ 42.816236][ T17] rio500: probe of 3-1:0.133 failed with error -16 [ 42.824134][ T83] rio500 4-1:0.133: Second USB Rio at address 3 refused [ 42.832716][ T78] rio500 5-1:0.133: Second USB Rio at address 3 refused [ 42.839955][ T83] rio500: probe of 4-1:0.133 failed with error -16 executing program [ 42.840561][ T5] usb 1-1: USB disconnect, device number 3 [ 42.853773][ T12] rio500 6-1:0.133: Second USB Rio at address 3 refused [ 42.855174][ T78] rio500: probe of 5-1:0.133 failed with error -16 [ 42.867586][ T12] rio500: probe of 6-1:0.133 failed with error -16 [ 42.880610][ T5] rio500 1-1:0.133: USB Rio disconnected. executing program [ 42.939926][ T12] usb 2-1: USB disconnect, device number 3 executing program executing program executing program [ 43.009860][ T78] usb 3-1: USB disconnect, device number 3 [ 43.010586][ T1727] usb 5-1: USB disconnect, device number 3 [ 43.021709][ T1725] usb 4-1: USB disconnect, device number 3 executing program [ 43.053758][ T1751] usb 6-1: USB disconnect, device number 3 [ 43.237799][ T5] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 43.297776][ T12] usb 2-1: new high-speed USB device number 4 using dummy_hcd [ 43.387773][ T1727] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 43.417804][ T78] usb 3-1: new high-speed USB device number 4 using dummy_hcd [ 43.427843][ T1725] usb 4-1: new high-speed USB device number 4 using dummy_hcd [ 43.457787][ T1751] usb 6-1: new high-speed USB device number 4 using dummy_hcd [ 43.477816][ T5] usb 1-1: Using ep0 maxpacket: 16 [ 43.537864][ T12] usb 2-1: Using ep0 maxpacket: 16 [ 43.598352][ T5] usb 1-1: config 0 has an invalid interface number: 133 but max is 0 [ 43.606574][ T5] usb 1-1: config 0 has no interface number 0 [ 43.612717][ T5] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 43.621818][ T5] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.629979][ T1727] usb 5-1: Using ep0 maxpacket: 16 [ 43.636055][ T5] usb 1-1: config 0 descriptor?? [ 43.667784][ T78] usb 3-1: Using ep0 maxpacket: 16 [ 43.667936][ T12] usb 2-1: config 0 has an invalid interface number: 133 but max is 0 [ 43.681238][ T12] usb 2-1: config 0 has no interface number 0 [ 43.687427][ T1725] usb 4-1: Using ep0 maxpacket: 16 [ 43.693825][ T5] rio500 1-1:0.133: USB Rio found at address 4 [ 43.700105][ T1751] usb 6-1: Using ep0 maxpacket: 16 [ 43.705975][ T12] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 43.715100][ T12] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.729224][ T12] usb 2-1: config 0 descriptor?? [ 43.757922][ T1727] usb 5-1: config 0 has an invalid interface number: 133 but max is 0 [ 43.766170][ T1727] usb 5-1: config 0 has no interface number 0 [ 43.773767][ T12] rio500 2-1:0.133: Second USB Rio at address 4 refused [ 43.781129][ T12] rio500: probe of 2-1:0.133 failed with error -16 [ 43.787856][ T1727] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 43.787954][ T78] usb 3-1: config 0 has an invalid interface number: 133 but max is 0 [ 43.796868][ T1727] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.813069][ T78] usb 3-1: config 0 has no interface number 0 [ 43.817852][ T1751] usb 6-1: config 0 has an invalid interface number: 133 but max is 0 [ 43.823547][ T78] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 43.827253][ T1751] usb 6-1: config 0 has no interface number 0 [ 43.827286][ T1751] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 43.827300][ T1751] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.827958][ T1725] usb 4-1: config 0 has an invalid interface number: 133 but max is 0 executing program [ 43.836364][ T78] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.842426][ T1725] usb 4-1: config 0 has no interface number 0 [ 43.855969][ T78] usb 3-1: config 0 descriptor?? [ 43.860042][ T1727] usb 5-1: config 0 descriptor?? [ 43.884841][ T17] usb 1-1: USB disconnect, device number 4 [ 43.888287][ T1751] usb 6-1: config 0 descriptor?? [ 43.903184][ T17] rio500 1-1:0.133: USB Rio disconnected. [ 43.903192][ T1725] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 43.903205][ T1725] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 43.910647][ T78] rio500 3-1:0.133: USB Rio found at address 4 [ 43.927046][ T1725] usb 4-1: config 0 descriptor?? [ 43.939157][ T1751] rio500 6-1:0.133: USB Rio found at address 4 [ 43.947158][ T1727] rio500 5-1:0.133: Second USB Rio at address 4 refused [ 43.959180][ T1727] rio500: probe of 5-1:0.133 failed with error -16 executing program [ 43.974471][ T1727] usb 2-1: USB disconnect, device number 4 [ 43.989026][ T1725] rio500 4-1:0.133: Second USB Rio at address 4 refused [ 43.996045][ T1725] rio500: probe of 4-1:0.133 failed with error -16 executing program executing program executing program [ 44.110515][ T78] usb 3-1: USB disconnect, device number 4 [ 44.118283][ T78] rio500 3-1:0.133: USB Rio disconnected. [ 44.138966][ T1725] usb 6-1: USB disconnect, device number 4 [ 44.144129][ T83] usb 5-1: USB disconnect, device number 4 [ 44.146185][ T1725] ================================================================== executing program [ 44.158705][ T1725] BUG: KASAN: double-free or invalid-free in disconnect_rio+0x12b/0x1b0 [ 44.167012][ T1725] [ 44.169325][ T1725] CPU: 0 PID: 1725 Comm: kworker/0:2 Not tainted 5.4.0-rc1+ #0 [ 44.176884][ T1725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.186923][ T1725] Workqueue: usb_hub_wq hub_event [ 44.189095][ T1728] usb 4-1: USB disconnect, device number 4 [ 44.191928][ T1725] Call Trace: [ 44.201020][ T1725] dump_stack+0xca/0x13e [ 44.205263][ T1725] print_address_description.constprop.0+0x36/0x50 [ 44.211770][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.216606][ T1725] kasan_report_invalid_free+0x61/0xa0 [ 44.222054][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.226928][ T1725] __kasan_slab_free+0x162/0x180 [ 44.231852][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.236681][ T1725] kfree+0xe4/0x2f0 [ 44.240491][ T1725] disconnect_rio+0x12b/0x1b0 [ 44.245155][ T1725] usb_unbind_interface+0x1bd/0x8a0 [ 44.250342][ T1725] ? usb_autoresume_device+0x60/0x60 [ 44.255604][ T1725] device_release_driver_internal+0x42f/0x500 [ 44.261652][ T1725] bus_remove_device+0x2dc/0x4a0 [ 44.266594][ T1725] device_del+0x420/0xb20 [ 44.270898][ T1725] ? __device_link_del+0x2f0/0x2f0 [ 44.275998][ T1725] ? lockdep_hardirqs_on+0x382/0x580 [ 44.281263][ T1725] ? remove_intf_ep_devs+0x13f/0x1d0 [ 44.286523][ T1725] usb_disable_device+0x211/0x690 [ 44.291522][ T1725] usb_disconnect+0x284/0x8d0 [ 44.296173][ T1725] hub_event+0x1454/0x3640 [ 44.300581][ T1725] ? find_held_lock+0x2d/0x110 [ 44.305332][ T1725] ? mark_held_locks+0xe0/0xe0 [ 44.310081][ T1725] ? hub_port_debounce+0x260/0x260 [ 44.315175][ T1725] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 44.320693][ T1725] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 44.325951][ T1725] process_one_work+0x92b/0x1530 [ 44.330864][ T1725] ? pwq_dec_nr_in_flight+0x310/0x310 [ 44.336225][ T1725] ? do_raw_spin_lock+0x11a/0x280 [ 44.341226][ T1725] worker_thread+0x96/0xe20 [ 44.345703][ T1725] ? process_one_work+0x1530/0x1530 [ 44.350889][ T1725] kthread+0x318/0x420 [ 44.354933][ T1725] ? kthread_create_on_node+0xf0/0xf0 [ 44.360291][ T1725] ret_from_fork+0x24/0x30 [ 44.364678][ T1725] [ 44.366982][ T1725] Allocated by task 1751: [ 44.371291][ T1725] save_stack+0x1b/0x80 [ 44.375421][ T1725] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 44.381042][ T1725] probe_rio+0x135/0x248 [ 44.385279][ T1725] usb_probe_interface+0x305/0x7a0 [ 44.390364][ T1725] really_probe+0x281/0x6d0 [ 44.394844][ T1725] driver_probe_device+0x104/0x210 [ 44.399928][ T1725] __device_attach_driver+0x1c2/0x220 [ 44.405272][ T1725] bus_for_each_drv+0x162/0x1e0 [ 44.410103][ T1725] __device_attach+0x217/0x360 [ 44.414845][ T1725] bus_probe_device+0x1e4/0x290 [ 44.419669][ T1725] device_add+0xae6/0x16f0 [ 44.424058][ T1725] usb_set_configuration+0xdf6/0x1670 [ 44.429405][ T1725] generic_probe+0x9d/0xd5 [ 44.433834][ T1725] usb_probe_device+0x99/0x100 [ 44.438595][ T1725] really_probe+0x281/0x6d0 [ 44.443086][ T1725] driver_probe_device+0x104/0x210 [ 44.448172][ T1725] __device_attach_driver+0x1c2/0x220 [ 44.453520][ T1725] bus_for_each_drv+0x162/0x1e0 [ 44.458344][ T1725] __device_attach+0x217/0x360 [ 44.463090][ T1725] bus_probe_device+0x1e4/0x290 [ 44.467917][ T1725] device_add+0xae6/0x16f0 [ 44.472305][ T1725] usb_new_device.cold+0x6a4/0xe79 [ 44.477411][ T1725] hub_event+0x1b5c/0x3640 [ 44.481817][ T1725] process_one_work+0x92b/0x1530 [ 44.486727][ T1725] worker_thread+0x96/0xe20 [ 44.491203][ T1725] kthread+0x318/0x420 [ 44.495261][ T1725] ret_from_fork+0x24/0x30 [ 44.499646][ T1725] [ 44.501952][ T1725] Freed by task 78: [ 44.505735][ T1725] save_stack+0x1b/0x80 [ 44.509866][ T1725] __kasan_slab_free+0x130/0x180 [ 44.514792][ T1725] kfree+0xe4/0x2f0 [ 44.518583][ T1725] disconnect_rio+0x12b/0x1b0 [ 44.523247][ T1725] usb_unbind_interface+0x1bd/0x8a0 [ 44.528421][ T1725] device_release_driver_internal+0x42f/0x500 [ 44.534459][ T1725] bus_remove_device+0x2dc/0x4a0 [ 44.539380][ T1725] device_del+0x420/0xb20 [ 44.543684][ T1725] usb_disable_device+0x211/0x690 [ 44.548682][ T1725] usb_disconnect+0x284/0x8d0 [ 44.553338][ T1725] hub_event+0x1454/0x3640 [ 44.557751][ T1725] process_one_work+0x92b/0x1530 [ 44.562676][ T1725] worker_thread+0x96/0xe20 [ 44.567170][ T1725] kthread+0x318/0x420 [ 44.571212][ T1725] ret_from_fork+0x24/0x30 [ 44.575599][ T1725] [ 44.577904][ T1725] The buggy address belongs to the object at ffff8881c5a63300 [ 44.577904][ T1725] which belongs to the cache kmalloc-4k of size 4096 [ 44.591931][ T1725] The buggy address is located 0 bytes inside of [ 44.591931][ T1725] 4096-byte region [ffff8881c5a63300, ffff8881c5a64300) [ 44.605087][ T1725] The buggy address belongs to the page: [ 44.610706][ T1725] page:ffffea0007169800 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0 [ 44.621618][ T1725] flags: 0x200000000010200(slab|head) [ 44.626991][ T1725] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c280 [ 44.635563][ T1725] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 44.644118][ T1725] page dumped because: kasan: bad access detected [ 44.650511][ T1725] [ 44.652814][ T1725] Memory state around the buggy address: [ 44.658425][ T1725] ffff8881c5a63200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.666461][ T1725] ffff8881c5a63280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.674494][ T1725] >ffff8881c5a63300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.682524][ T1725] ^ [ 44.686566][ T1725] ffff8881c5a63380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.694600][ T1725] ffff8881c5a63400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 44.702633][ T1725] ================================================================== [ 44.710666][ T1725] Disabling lock debugging due to kernel taint [ 44.717081][ T1725] Kernel panic - not syncing: panic_on_warn set ... [ 44.723669][ T1725] CPU: 0 PID: 1725 Comm: kworker/0:2 Tainted: G B 5.4.0-rc1+ #0 [ 44.732590][ T1725] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 44.742630][ T1725] Workqueue: usb_hub_wq hub_event [ 44.747626][ T1725] Call Trace: [ 44.750893][ T1725] dump_stack+0xca/0x13e [ 44.755112][ T1725] panic+0x2a3/0x6da [ 44.758981][ T1725] ? add_taint.cold+0x16/0x16 [ 44.763635][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.768479][ T1725] ? trace_hardirqs_on+0x55/0x1e0 [ 44.773474][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.778298][ T1725] end_report+0x43/0x49 [ 44.782448][ T1725] kasan_report_invalid_free+0x7d/0xa0 [ 44.787935][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.792774][ T1725] __kasan_slab_free+0x162/0x180 [ 44.797693][ T1725] ? disconnect_rio+0x12b/0x1b0 [ 44.802526][ T1725] kfree+0xe4/0x2f0 [ 44.806314][ T1725] disconnect_rio+0x12b/0x1b0 [ 44.810979][ T1725] usb_unbind_interface+0x1bd/0x8a0 [ 44.816161][ T1725] ? usb_autoresume_device+0x60/0x60 [ 44.821430][ T1725] device_release_driver_internal+0x42f/0x500 [ 44.827534][ T1725] bus_remove_device+0x2dc/0x4a0 [ 44.832454][ T1725] device_del+0x420/0xb20 [ 44.836776][ T1725] ? __device_link_del+0x2f0/0x2f0 [ 44.841863][ T1725] ? lockdep_hardirqs_on+0x382/0x580 [ 44.847145][ T1725] ? remove_intf_ep_devs+0x13f/0x1d0 [ 44.852424][ T1725] usb_disable_device+0x211/0x690 [ 44.857424][ T1725] usb_disconnect+0x284/0x8d0 [ 44.862075][ T1725] hub_event+0x1454/0x3640 [ 44.866467][ T1725] ? find_held_lock+0x2d/0x110 [ 44.871217][ T1725] ? mark_held_locks+0xe0/0xe0 [ 44.875952][ T1725] ? hub_port_debounce+0x260/0x260 [ 44.881127][ T1725] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 44.886658][ T1725] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 44.891919][ T1725] process_one_work+0x92b/0x1530 [ 44.896843][ T1725] ? pwq_dec_nr_in_flight+0x310/0x310 [ 44.902192][ T1725] ? do_raw_spin_lock+0x11a/0x280 [ 44.907199][ T1725] worker_thread+0x96/0xe20 [ 44.911686][ T1725] ? process_one_work+0x1530/0x1530 [ 44.916868][ T1725] kthread+0x318/0x420 [ 44.920911][ T1725] ? kthread_create_on_node+0xf0/0xf0 [ 44.926274][ T1725] ret_from_fork+0x24/0x30 [ 44.931255][ T1725] Kernel Offset: disabled [ 44.935576][ T1725] Rebooting in 86400 seconds..