Warning: Permanently added '10.128.15.204' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 30.242810][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 30.250597][ T5] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 30.258363][ T1741] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 30.265871][ T1740] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 30.273400][ T1739] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 30.281084][ T1742] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 30.512809][ T1739] usb 5-1: Using ep0 maxpacket: 8 [ 30.522836][ T1741] usb 6-1: Using ep0 maxpacket: 8 [ 30.527996][ T1740] usb 3-1: Using ep0 maxpacket: 8 [ 30.533161][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 30.538322][ T5] usb 4-1: Using ep0 maxpacket: 8 [ 30.543441][ T1742] usb 2-1: Using ep0 maxpacket: 8 [ 30.632910][ T1739] usb 5-1: config 0 has an invalid interface number: 67 but max is 0 [ 30.641264][ T1739] usb 5-1: config 0 has no interface number 0 [ 30.647635][ T1741] usb 6-1: config 0 has an invalid interface number: 67 but max is 0 [ 30.655955][ T1741] usb 6-1: config 0 has no interface number 0 [ 30.662091][ T12] usb 1-1: config 0 has an invalid interface number: 67 but max is 0 [ 30.670446][ T12] usb 1-1: config 0 has no interface number 0 [ 30.676597][ T5] usb 4-1: config 0 has an invalid interface number: 67 but max is 0 [ 30.684796][ T5] usb 4-1: config 0 has no interface number 0 [ 30.691017][ T1740] usb 3-1: config 0 has an invalid interface number: 67 but max is 0 [ 30.699110][ T1740] usb 3-1: config 0 has no interface number 0 [ 30.705241][ T1742] usb 2-1: config 0 has an invalid interface number: 67 but max is 0 [ 30.713516][ T1742] usb 2-1: config 0 has no interface number 0 [ 30.719736][ T1741] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 30.728882][ T1741] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.736950][ T1739] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 30.745997][ T1739] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.754053][ T12] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 30.763126][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.771146][ T1740] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 30.780220][ T1740] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.788273][ T5] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 30.797416][ T5] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.805460][ T1742] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 30.814502][ T1742] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.823812][ T1741] usb 6-1: config 0 descriptor?? [ 30.830048][ T1739] usb 5-1: config 0 descriptor?? [ 30.835359][ T12] usb 1-1: config 0 descriptor?? [ 30.842237][ T1740] usb 3-1: config 0 descriptor?? [ 30.847607][ T1742] usb 2-1: config 0 descriptor?? [ 30.853113][ T5] usb 4-1: config 0 descriptor?? [ 30.864666][ T1741] rio500 6-1:0.67: USB Rio found at address 2 [ 30.874662][ T12] rio500 1-1:0.67: Second USB Rio at address 2 refused [ 30.884411][ T1742] rio500 2-1:0.67: Second USB Rio at address 2 refused [ 30.892207][ T12] rio500: probe of 1-1:0.67 failed with error -16 [ 30.900377][ T5] rio500 4-1:0.67: Second USB Rio at address 2 refused [ 30.908571][ T1739] rio500 5-1:0.67: Second USB Rio at address 2 refused [ 30.916869][ T1740] rio500 3-1:0.67: Second USB Rio at address 2 refused [ 30.923930][ T1742] rio500: probe of 2-1:0.67 failed with error -16 [ 30.930533][ T1739] rio500: probe of 5-1:0.67 failed with error -16 [ 30.937311][ T1740] rio500: probe of 3-1:0.67 failed with error -16 [ 30.943979][ T5] rio500: probe of 4-1:0.67 failed with error -16 executing program executing program executing program executing program [ 31.064925][ T83] usb 6-1: USB disconnect, device number 2 [ 31.072937][ T83] rio500 6-1:0.67: USB Rio disconnected. [ 31.075616][ T5] usb 1-1: USB disconnect, device number 2 [ 31.086277][ T17] usb 2-1: USB disconnect, device number 2 [ 31.104023][ T1740] usb 4-1: USB disconnect, device number 2 executing program executing program [ 31.114131][ T1739] usb 5-1: USB disconnect, device number 2 [ 31.121632][ T1755] usb 3-1: USB disconnect, device number 2 [ 31.442823][ T83] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 31.452785][ T5] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 31.472790][ T1755] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 31.472839][ T1739] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 31.487885][ T1740] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 31.492851][ T17] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 31.682837][ T83] usb 6-1: Using ep0 maxpacket: 8 [ 31.692995][ T5] usb 1-1: Using ep0 maxpacket: 8 [ 31.712813][ T1755] usb 3-1: Using ep0 maxpacket: 8 [ 31.742847][ T1740] usb 4-1: Using ep0 maxpacket: 8 [ 31.742887][ T17] usb 2-1: Using ep0 maxpacket: 8 [ 31.748010][ T1739] usb 5-1: Using ep0 maxpacket: 8 [ 31.802840][ T83] usb 6-1: config 0 has an invalid interface number: 67 but max is 0 [ 31.810974][ T83] usb 6-1: config 0 has no interface number 0 [ 31.817260][ T83] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 31.822915][ T5] usb 1-1: config 0 has an invalid interface number: 67 but max is 0 [ 31.826319][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.827671][ T83] usb 6-1: config 0 descriptor?? [ 31.834441][ T5] usb 1-1: config 0 has no interface number 0 [ 31.837627][ T5] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 31.842707][ T1755] usb 3-1: config 0 has an invalid interface number: 67 but max is 0 [ 31.847629][ T5] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.853624][ T1755] usb 3-1: config 0 has no interface number 0 [ 31.869528][ T5] usb 1-1: config 0 descriptor?? [ 31.870926][ T1755] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 31.899493][ T1755] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.903107][ T1740] usb 4-1: config 0 has an invalid interface number: 67 but max is 0 [ 31.907908][ T17] usb 2-1: config 0 has an invalid interface number: 67 but max is 0 [ 31.915956][ T1740] usb 4-1: config 0 has no interface number 0 [ 31.924002][ T17] usb 2-1: config 0 has no interface number 0 [ 31.930201][ T1739] usb 5-1: config 0 has an invalid interface number: 67 but max is 0 [ 31.937514][ T83] rio500 6-1:0.67: USB Rio found at address 3 [ 31.944235][ T1739] usb 5-1: config 0 has no interface number 0 [ 31.951751][ T5] rio500 1-1:0.67: USB Rio found at address 3 [ 31.958256][ T17] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 31.972182][ T17] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.978582][ T1739] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 31.981893][ T1755] usb 3-1: config 0 descriptor?? [ 31.989299][ T1739] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.002811][ T1740] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 32.011859][ T1740] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.012637][ T17] usb 2-1: config 0 descriptor?? [ 32.027513][ T1739] usb 5-1: config 0 descriptor?? [ 32.033545][ T1740] usb 4-1: config 0 descriptor?? [ 32.034255][ T1755] rio500 3-1:0.67: Second USB Rio at address 3 refused [ 32.046181][ T1755] rio500: probe of 3-1:0.67 failed with error -16 [ 32.064510][ T17] rio500 2-1:0.67: Second USB Rio at address 3 refused [ 32.071607][ T17] rio500: probe of 2-1:0.67 failed with error -16 [ 32.084386][ T1740] rio500 4-1:0.67: Second USB Rio at address 3 refused [ 32.092619][ T1739] rio500 5-1:0.67: Second USB Rio at address 3 refused [ 32.107385][ T1740] rio500: probe of 4-1:0.67 failed with error -16 executing program [ 32.114297][ T1739] rio500: probe of 5-1:0.67 failed with error -16 [ 32.149086][ T1739] usb 1-1: USB disconnect, device number 3 [ 32.156252][ T1739] rio500 1-1:0.67: USB Rio disconnected. executing program [ 32.158182][ T17] usb 6-1: USB disconnect, device number 3 [ 32.175832][ T17] ================================================================== [ 32.184242][ T17] BUG: KASAN: double-free or invalid-free in disconnect_rio+0x12b/0x1b0 [ 32.192551][ T17] [ 32.194885][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.3.0+ #0 [ 32.201891][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.212045][ T17] Workqueue: usb_hub_wq hub_event [ 32.217052][ T17] Call Trace: [ 32.220360][ T17] dump_stack+0xca/0x13e [ 32.224606][ T17] print_address_description.constprop.0+0x36/0x50 [ 32.231111][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.235947][ T17] kasan_report_invalid_free+0x61/0xa0 [ 32.241399][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.246246][ T17] __kasan_slab_free+0x162/0x180 [ 32.251167][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.255998][ T17] kfree+0xe4/0x2f0 [ 32.259787][ T17] disconnect_rio+0x12b/0x1b0 executing program executing program [ 32.264375][ T1740] usb 2-1: USB disconnect, device number 3 [ 32.264476][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 32.275460][ T17] ? usb_autoresume_device+0x60/0x60 [ 32.280756][ T17] device_release_driver_internal+0x42f/0x500 [ 32.284940][ T5] usb 4-1: USB disconnect, device number 3 [ 32.286827][ T17] bus_remove_device+0x2dc/0x4a0 [ 32.286840][ T17] device_del+0x420/0xb10 [ 32.286853][ T17] ? __device_links_no_driver+0x240/0x240 [ 32.286868][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 32.286885][ T17] ? remove_intf_ep_devs+0x13f/0x1d0 [ 32.318165][ T17] usb_disable_device+0x211/0x690 [ 32.323176][ T17] usb_disconnect+0x284/0x8d0 [ 32.327836][ T17] hub_event+0x1454/0x3640 [ 32.332238][ T17] ? find_held_lock+0x2d/0x110 [ 32.336987][ T17] ? mark_held_locks+0xe0/0xe0 [ 32.341734][ T17] ? hub_port_debounce+0x260/0x260 [ 32.346833][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 32.352363][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 32.357628][ T17] process_one_work+0x92b/0x1530 [ 32.362548][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 32.367902][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 32.372940][ T17] worker_thread+0x96/0xe20 [ 32.377469][ T17] ? process_one_work+0x1530/0x1530 [ 32.382748][ T17] kthread+0x318/0x420 [ 32.386987][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 32.392358][ T17] ret_from_fork+0x24/0x30 [ 32.396753][ T17] [ 32.399168][ T17] Allocated by task 5: [ 32.403233][ T17] save_stack+0x1b/0x80 [ 32.407374][ T17] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 32.413005][ T17] probe_rio+0x135/0x248 [ 32.417247][ T17] usb_probe_interface+0x305/0x7a0 [ 32.422359][ T17] really_probe+0x281/0x6d0 [ 32.426845][ T17] driver_probe_device+0x104/0x210 [ 32.431948][ T17] __device_attach_driver+0x1c2/0x220 [ 32.437520][ T17] bus_for_each_drv+0x162/0x1e0 [ 32.442366][ T17] __device_attach+0x217/0x360 [ 32.447111][ T17] bus_probe_device+0x1e4/0x290 [ 32.451941][ T17] device_add+0xae6/0x16f0 [ 32.456342][ T17] usb_set_configuration+0xdf6/0x1670 [ 32.461695][ T17] generic_probe+0x9d/0xd5 [ 32.466098][ T17] usb_probe_device+0x99/0x100 [ 32.470843][ T17] really_probe+0x281/0x6d0 [ 32.475326][ T17] driver_probe_device+0x104/0x210 [ 32.480440][ T17] __device_attach_driver+0x1c2/0x220 [ 32.485795][ T17] bus_for_each_drv+0x162/0x1e0 [ 32.490640][ T17] __device_attach+0x217/0x360 [ 32.495401][ T17] bus_probe_device+0x1e4/0x290 [ 32.500249][ T17] device_add+0xae6/0x16f0 [ 32.504656][ T17] usb_new_device.cold+0x6a4/0xe79 [ 32.509761][ T17] hub_event+0x1b5c/0x3640 [ 32.514178][ T17] process_one_work+0x92b/0x1530 [ 32.519106][ T17] worker_thread+0x96/0xe20 [ 32.523593][ T17] kthread+0x318/0x420 [ 32.527674][ T17] ret_from_fork+0x24/0x30 [ 32.532065][ T17] [ 32.534390][ T17] Freed by task 1739: [ 32.538375][ T17] save_stack+0x1b/0x80 [ 32.542510][ T17] __kasan_slab_free+0x130/0x180 [ 32.547438][ T17] kfree+0xe4/0x2f0 [ 32.551251][ T17] disconnect_rio+0x12b/0x1b0 [ 32.555918][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 32.561251][ T17] device_release_driver_internal+0x42f/0x500 [ 32.567357][ T17] bus_remove_device+0x2dc/0x4a0 [ 32.572407][ T17] device_del+0x420/0xb10 [ 32.576845][ T17] usb_disable_device+0x211/0x690 [ 32.581856][ T17] usb_disconnect+0x284/0x8d0 [ 32.586523][ T17] hub_event+0x1454/0x3640 [ 32.590938][ T17] process_one_work+0x92b/0x1530 [ 32.595867][ T17] worker_thread+0x96/0xe20 [ 32.600352][ T17] kthread+0x318/0x420 [ 32.604405][ T17] ret_from_fork+0x24/0x30 [ 32.608808][ T17] [ 32.611154][ T17] The buggy address belongs to the object at ffff8881d25a5500 [ 32.611154][ T17] which belongs to the cache kmalloc-4k of size 4096 [ 32.625197][ T17] The buggy address is located 0 bytes inside of [ 32.625197][ T17] 4096-byte region [ffff8881d25a5500, ffff8881d25a6500) [ 32.638359][ T17] The buggy address belongs to the page: [ 32.643990][ T17] page:ffffea0007496800 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0 [ 32.654924][ T17] flags: 0x200000000010200(slab|head) [ 32.660301][ T17] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c280 [ 32.668883][ T17] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 32.677443][ T17] page dumped because: kasan: bad access detected [ 32.683830][ T17] [ 32.686348][ T17] Memory state around the buggy address: [ 32.691971][ T17] ffff8881d25a5400: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.700037][ T17] ffff8881d25a5480: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 32.708099][ T17] >ffff8881d25a5500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.716135][ T17] ^ [ 32.720181][ T17] ffff8881d25a5580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.728226][ T17] ffff8881d25a5600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 32.736261][ T17] ================================================================== [ 32.744329][ T17] Disabling lock debugging due to kernel taint [ 32.750685][ T17] Kernel panic - not syncing: panic_on_warn set ... [ 32.757270][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.3.0+ #0 [ 32.765656][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.775802][ T17] Workqueue: usb_hub_wq hub_event [ 32.780802][ T17] Call Trace: [ 32.784166][ T17] dump_stack+0xca/0x13e [ 32.788403][ T17] panic+0x2a3/0x6da [ 32.792279][ T17] ? add_taint.cold+0x16/0x16 [ 32.796944][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.801774][ T17] ? trace_hardirqs_on+0x55/0x1e0 [ 32.806789][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.811619][ T17] end_report+0x43/0x49 [ 32.815768][ T17] kasan_report_invalid_free+0x7d/0xa0 [ 32.821206][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.826036][ T17] __kasan_slab_free+0x162/0x180 [ 32.830951][ T17] ? disconnect_rio+0x12b/0x1b0 [ 32.835778][ T17] kfree+0xe4/0x2f0 [ 32.839562][ T17] disconnect_rio+0x12b/0x1b0 [ 32.844217][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 32.849395][ T17] ? usb_autoresume_device+0x60/0x60 [ 32.854660][ T17] device_release_driver_internal+0x42f/0x500 [ 32.860703][ T17] bus_remove_device+0x2dc/0x4a0 [ 32.865617][ T17] device_del+0x420/0xb10 [ 32.869938][ T17] ? __device_links_no_driver+0x240/0x240 [ 32.875650][ T17] ? lockdep_hardirqs_on+0x382/0x580 [ 32.881031][ T17] ? remove_intf_ep_devs+0x13f/0x1d0 [ 32.886310][ T17] usb_disable_device+0x211/0x690 [ 32.891664][ T17] usb_disconnect+0x284/0x8d0 [ 32.896543][ T17] hub_event+0x1454/0x3640 [ 32.900950][ T17] ? find_held_lock+0x2d/0x110 [ 32.905781][ T17] ? mark_held_locks+0xe0/0xe0 [ 32.910527][ T17] ? hub_port_debounce+0x260/0x260 [ 32.915881][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 32.921415][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 32.926681][ T17] process_one_work+0x92b/0x1530 [ 32.931614][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 32.936973][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 32.941975][ T17] worker_thread+0x96/0xe20 [ 32.946455][ T17] ? process_one_work+0x1530/0x1530 [ 32.951631][ T17] kthread+0x318/0x420 [ 32.955695][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 32.961047][ T17] ret_from_fork+0x24/0x30 [ 32.966274][ T17] Kernel Offset: disabled [ 32.970763][ T17] Rebooting in 86400 seconds..