Warning: Permanently added '10.128.0.213' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 38.676637][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 38.676644][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 38.676970][ T102] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 38.684294][ T17] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 38.706770][ T22] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 38.714322][ T1737] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 38.926581][ T12] usb 6-1: Using ep0 maxpacket: 8 [ 38.931763][ T102] usb 2-1: Using ep0 maxpacket: 8 [ 38.946567][ T22] usb 5-1: Using ep0 maxpacket: 8 [ 38.966659][ T83] usb 1-1: Using ep0 maxpacket: 8 [ 38.971843][ T1737] usb 3-1: Using ep0 maxpacket: 8 [ 38.976962][ T17] usb 4-1: Using ep0 maxpacket: 8 [ 39.046636][ T12] usb 6-1: config 0 has an invalid interface number: 67 but max is 0 [ 39.054868][ T12] usb 6-1: config 0 has no interface number 0 [ 39.061125][ T102] usb 2-1: config 0 has an invalid interface number: 67 but max is 0 [ 39.069282][ T102] usb 2-1: config 0 has no interface number 0 [ 39.075428][ T102] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 39.084496][ T102] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.086759][ T22] usb 5-1: config 0 has an invalid interface number: 67 but max is 0 [ 39.092597][ T12] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 39.100728][ T22] usb 5-1: config 0 has no interface number 0 [ 39.109648][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.115885][ T1737] usb 3-1: config 0 has an invalid interface number: 67 but max is 0 [ 39.128810][ T102] usb 2-1: config 0 descriptor?? [ 39.131791][ T1737] usb 3-1: config 0 has no interface number 0 [ 39.141235][ T12] usb 6-1: config 0 descriptor?? [ 39.142892][ T83] usb 1-1: config 0 has an invalid interface number: 67 but max is 0 [ 39.155799][ T83] usb 1-1: config 0 has no interface number 0 [ 39.161898][ T17] usb 4-1: config 0 has an invalid interface number: 67 but max is 0 [ 39.170011][ T17] usb 4-1: config 0 has no interface number 0 [ 39.176104][ T17] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 39.178325][ T102] rio500 2-1:0.67: USB Rio found at address 2 [ 39.185216][ T17] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.199071][ T12] rio500 6-1:0.67: USB Rio found at address 2 [ 39.199332][ T83] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 39.214483][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.222549][ T1737] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 39.231626][ T1737] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.239684][ T22] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 39.248750][ T22] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.257895][ T1737] usb 3-1: config 0 descriptor?? [ 39.263586][ T22] usb 5-1: config 0 descriptor?? [ 39.268849][ T17] usb 4-1: config 0 descriptor?? [ 39.274559][ T83] usb 1-1: config 0 descriptor?? [ 39.298297][ T1737] rio500 3-1:0.67: Second USB Rio at address 2 refused [ 39.305441][ T1737] rio500: probe of 3-1:0.67 failed with error -16 [ 39.327931][ T83] rio500 1-1:0.67: Second USB Rio at address 2 refused [ 39.334881][ T83] rio500: probe of 1-1:0.67 failed with error -16 executing program executing program [ 39.342600][ T22] rio500 5-1:0.67: Second USB Rio at address 2 refused [ 39.350721][ T17] rio500 4-1:0.67: Second USB Rio at address 2 refused [ 39.358345][ T22] rio500: probe of 5-1:0.67 failed with error -16 [ 39.366209][ T17] rio500: probe of 4-1:0.67 failed with error -16 [ 39.379150][ T12] usb 2-1: USB disconnect, device number 2 [ 39.387447][ T12] rio500 2-1:0.67: USB Rio disconnected. [ 39.397581][ T22] usb 6-1: USB disconnect, device number 2 [ 39.404594][ T22] ================================================================== [ 39.412762][ T22] BUG: KASAN: double-free or invalid-free in disconnect_rio+0x12b/0x1b0 [ 39.421058][ T22] [ 39.423404][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0+ #0 [ 39.430396][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.440433][ T22] Workqueue: usb_hub_wq hub_event [ 39.445428][ T22] Call Trace: [ 39.448695][ T22] dump_stack+0xca/0x13e [ 39.452916][ T22] print_address_description.constprop.0+0x36/0x50 [ 39.459391][ T22] ? disconnect_rio+0x12b/0x1b0 [ 39.464219][ T22] kasan_report_invalid_free+0x61/0xa0 [ 39.469650][ T22] ? disconnect_rio+0x12b/0x1b0 [ 39.474473][ T22] __kasan_slab_free+0x162/0x180 [ 39.479384][ T22] ? disconnect_rio+0x12b/0x1b0 [ 39.484205][ T22] kfree+0xe4/0x2f0 [ 39.488032][ T22] disconnect_rio+0x12b/0x1b0 [ 39.492684][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 39.497865][ T22] ? usb_autoresume_device+0x60/0x60 [ 39.498528][ T102] usb 3-1: USB disconnect, device number 2 [ 39.503854][ T22] device_release_driver_internal+0x42f/0x500 [ 39.515700][ T22] bus_remove_device+0x2dc/0x4a0 [ 39.520633][ T22] device_del+0x420/0xb10 [ 39.524944][ T22] ? __device_links_no_driver+0x240/0x240 [ 39.528684][ T1740] usb 1-1: USB disconnect, device number 2 [ 39.530650][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 39.541695][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 39.546981][ T22] usb_disable_device+0x211/0x690 [ 39.549014][ T1750] usb 5-1: USB disconnect, device number 2 [ 39.552026][ T22] usb_disconnect+0x284/0x8d0 [ 39.562462][ T22] hub_event+0x1454/0x3640 [ 39.563078][ T5] usb 4-1: USB disconnect, device number 2 [ 39.566878][ T22] ? find_held_lock+0x2d/0x110 [ 39.566890][ T22] ? mark_held_locks+0xe0/0xe0 [ 39.566902][ T22] ? hub_port_debounce+0x260/0x260 [ 39.566916][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 39.566926][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 39.566943][ T22] process_one_work+0x92b/0x1530 [ 39.603007][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 39.608356][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 39.613360][ T22] worker_thread+0x96/0xe20 [ 39.617839][ T22] ? process_one_work+0x1530/0x1530 [ 39.623022][ T22] kthread+0x318/0x420 [ 39.627066][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 39.632413][ T22] ret_from_fork+0x24/0x30 [ 39.636801][ T22] [ 39.639104][ T22] Allocated by task 102: [ 39.643365][ T22] save_stack+0x1b/0x80 [ 39.647514][ T22] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 39.653132][ T22] probe_rio+0x135/0x248 [ 39.657404][ T22] usb_probe_interface+0x305/0x7a0 [ 39.662497][ T22] really_probe+0x281/0x6d0 [ 39.666978][ T22] driver_probe_device+0x104/0x210 [ 39.672066][ T22] __device_attach_driver+0x1c2/0x220 [ 39.677460][ T22] bus_for_each_drv+0x162/0x1e0 [ 39.682286][ T22] __device_attach+0x217/0x360 [ 39.687025][ T22] bus_probe_device+0x1e4/0x290 [ 39.691865][ T22] device_add+0xae6/0x16f0 [ 39.696257][ T22] usb_set_configuration+0xdf6/0x1670 [ 39.701607][ T22] generic_probe+0x9d/0xd5 [ 39.706010][ T22] usb_probe_device+0x99/0x100 [ 39.710762][ T22] really_probe+0x281/0x6d0 [ 39.715242][ T22] driver_probe_device+0x104/0x210 [ 39.720333][ T22] __device_attach_driver+0x1c2/0x220 [ 39.725680][ T22] bus_for_each_drv+0x162/0x1e0 [ 39.730506][ T22] __device_attach+0x217/0x360 [ 39.735244][ T22] bus_probe_device+0x1e4/0x290 [ 39.740080][ T22] device_add+0xae6/0x16f0 [ 39.744485][ T22] usb_new_device.cold+0x6a4/0xe79 [ 39.746662][ T12] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 39.749583][ T22] hub_event+0x1b5c/0x3640 [ 39.749600][ T22] process_one_work+0x92b/0x1530 [ 39.766342][ T22] worker_thread+0x96/0xe20 [ 39.770824][ T22] kthread+0x318/0x420 [ 39.774867][ T22] ret_from_fork+0x24/0x30 [ 39.779252][ T22] [ 39.781559][ T22] Freed by task 12: [ 39.785342][ T22] save_stack+0x1b/0x80 [ 39.789472][ T22] __kasan_slab_free+0x130/0x180 [ 39.794381][ T22] kfree+0xe4/0x2f0 [ 39.798166][ T22] disconnect_rio+0x12b/0x1b0 [ 39.802819][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 39.807995][ T22] device_release_driver_internal+0x42f/0x500 [ 39.814032][ T22] bus_remove_device+0x2dc/0x4a0 [ 39.818943][ T22] device_del+0x420/0xb10 [ 39.823244][ T22] usb_disable_device+0x211/0x690 [ 39.828246][ T22] usb_disconnect+0x284/0x8d0 [ 39.832908][ T22] hub_event+0x1454/0x3640 [ 39.837306][ T22] process_one_work+0x92b/0x1530 [ 39.842220][ T22] worker_thread+0x96/0xe20 [ 39.846708][ T22] kthread+0x318/0x420 [ 39.850750][ T22] ret_from_fork+0x24/0x30 [ 39.855134][ T22] [ 39.857438][ T22] The buggy address belongs to the object at ffff8881d58a8000 [ 39.857438][ T22] which belongs to the cache kmalloc-4k of size 4096 [ 39.871473][ T22] The buggy address is located 0 bytes inside of [ 39.871473][ T22] 4096-byte region [ffff8881d58a8000, ffff8881d58a9000) [ 39.884644][ T22] The buggy address belongs to the page: [ 39.890266][ T22] page:ffffea0007562a00 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0 [ 39.901181][ T22] flags: 0x200000000010200(slab|head) [ 39.906553][ T22] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c280 [ 39.915112][ T22] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 39.923666][ T22] page dumped because: kasan: bad access detected [ 39.930050][ T22] [ 39.932350][ T22] Memory state around the buggy address: [ 39.937955][ T22] ffff8881d58a7f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.945994][ T22] ffff8881d58a7f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 39.954071][ T22] >ffff8881d58a8000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.962112][ T22] ^ [ 39.966160][ T22] ffff8881d58a8080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.974201][ T22] ffff8881d58a8100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 39.982241][ T22] ================================================================== [ 39.990277][ T22] Disabling lock debugging due to kernel taint executing program executing program executing program executing program [ 39.996683][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 39.998251][ T12] usb 2-1: Using ep0 maxpacket: 8 [ 40.003278][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Tainted: G B 5.3.0+ #0 [ 40.003289][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 40.026722][ T22] Workqueue: usb_hub_wq hub_event [ 40.031721][ T22] Call Trace: [ 40.034993][ T22] dump_stack+0xca/0x13e [ 40.039216][ T22] panic+0x2a3/0x6da [ 40.043096][ T22] ? add_taint.cold+0x16/0x16 [ 40.047752][ T22] ? disconnect_rio+0x12b/0x1b0 [ 40.052580][ T22] ? trace_hardirqs_on+0x55/0x1e0 [ 40.057578][ T22] ? disconnect_rio+0x12b/0x1b0 [ 40.062405][ T22] end_report+0x43/0x49 [ 40.066544][ T22] kasan_report_invalid_free+0x7d/0xa0 [ 40.071986][ T22] ? disconnect_rio+0x12b/0x1b0 [ 40.076826][ T22] __kasan_slab_free+0x162/0x180 [ 40.081777][ T22] ? disconnect_rio+0x12b/0x1b0 [ 40.086611][ T22] kfree+0xe4/0x2f0 [ 40.090401][ T22] disconnect_rio+0x12b/0x1b0 [ 40.095052][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 40.100264][ T22] ? usb_autoresume_device+0x60/0x60 [ 40.105532][ T22] device_release_driver_internal+0x42f/0x500 [ 40.111596][ T22] bus_remove_device+0x2dc/0x4a0 [ 40.116524][ T22] device_del+0x420/0xb10 [ 40.120837][ T22] ? __device_links_no_driver+0x240/0x240 [ 40.126536][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 40.127007][ T12] usb 2-1: config 0 has an invalid interface number: 67 but max is 0 [ 40.131810][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 40.131821][ T22] usb_disable_device+0x211/0x690 [ 40.131833][ T22] usb_disconnect+0x284/0x8d0 [ 40.131847][ T22] hub_event+0x1454/0x3640 [ 40.139920][ T12] usb 2-1: config 0 has no interface number 0 [ 40.145150][ T22] ? find_held_lock+0x2d/0x110 [ 40.150986][ T12] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 40.154791][ T22] ? mark_held_locks+0xe0/0xe0 [ 40.154805][ T22] ? hub_port_debounce+0x260/0x260 [ 40.154817][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 40.154831][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 40.159249][ T12] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 40.165266][ T22] process_one_work+0x92b/0x1530 [ 40.173651][ T12] usb 2-1: config 0 descriptor?? [ 40.179002][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 40.179013][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 40.179024][ T22] worker_thread+0x96/0xe20 [ 40.179034][ T22] ? process_one_work+0x1530/0x1530 [ 40.179049][ T22] kthread+0x318/0x420 [ 40.219912][ T12] rio500 2-1:0.67: USB Rio found at address 3 [ 40.222793][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 40.222806][ T22] ret_from_fork+0x24/0x30 [ 40.228372][ T22] Kernel Offset: disabled [ 40.262144][ T22] Rebooting in 86400 seconds..