Warning: Permanently added '10.128.1.47' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 69.590530][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 69.590538][ T101] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 69.605702][ T5] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 69.610952][ T17] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 69.613215][ T12] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 69.613296][ T1739] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 69.830507][ T22] usb 1-1: Using ep0 maxpacket: 8 [ 69.860509][ T12] usb 4-1: Using ep0 maxpacket: 8 [ 69.860514][ T17] usb 6-1: Using ep0 maxpacket: 8 [ 69.870982][ T1739] usb 3-1: Using ep0 maxpacket: 8 [ 69.876059][ T5] usb 5-1: Using ep0 maxpacket: 8 [ 69.881235][ T101] usb 2-1: Using ep0 maxpacket: 8 [ 69.950555][ T22] usb 1-1: config 0 has an invalid interface number: 67 but max is 0 [ 69.958817][ T22] usb 1-1: config 0 has no interface number 0 [ 69.965175][ T22] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 69.974227][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 69.982458][ T17] usb 6-1: config 0 has an invalid interface number: 67 but max is 0 [ 69.990661][ T17] usb 6-1: config 0 has no interface number 0 [ 69.997404][ T17] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 70.006478][ T17] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 70.010779][ T101] usb 2-1: config 0 has an invalid interface number: 67 but max is 0 [ 70.015132][ T22] usb 1-1: config 0 descriptor?? [ 70.022980][ T101] usb 2-1: config 0 has no interface number 0 [ 70.026513][ T5] usb 5-1: config 0 has an invalid interface number: 67 but max is 0 [ 70.038757][ T17] usb 6-1: config 0 descriptor?? [ 70.042529][ T5] usb 5-1: config 0 has no interface number 0 [ 70.042581][ T12] usb 4-1: config 0 has an invalid interface number: 67 but max is 0 [ 70.042592][ T12] usb 4-1: config 0 has no interface number 0 [ 70.042702][ T12] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 70.072246][ T22] rio500 1-1:0.67: USB Rio found at address 2 [ 70.077125][ T12] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 70.090532][ T17] rio500 6-1:0.67: USB Rio found at address 2 [ 70.091362][ T1739] usb 3-1: config 0 has an invalid interface number: 67 but max is 0 [ 70.105421][ T1739] usb 3-1: config 0 has no interface number 0 [ 70.121274][ T101] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 70.130494][ T101] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 70.138526][ T5] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 70.147628][ T5] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 70.155799][ T1739] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=6e.90 [ 70.164965][ T1739] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 70.173720][ T101] usb 2-1: config 0 descriptor?? [ 70.179363][ T5] usb 5-1: config 0 descriptor?? [ 70.185168][ T1739] usb 3-1: config 0 descriptor?? [ 70.191518][ T12] usb 4-1: config 0 descriptor?? [ 70.211932][ T101] rio500 2-1:0.67: Second USB Rio at address 2 refused [ 70.218953][ T101] rio500: probe of 2-1:0.67 failed with error -16 [ 70.226776][ T5] rio500 5-1:0.67: Second USB Rio at address 2 refused [ 70.234982][ T1739] rio500 3-1:0.67: Second USB Rio at address 2 refused [ 70.243170][ T12] rio500 4-1:0.67: Second USB Rio at address 2 refused [ 70.250088][ T12] rio500: probe of 4-1:0.67 failed with error -16 executing program executing program [ 70.256649][ T1739] rio500: probe of 3-1:0.67 failed with error -16 [ 70.263166][ T5] rio500: probe of 5-1:0.67 failed with error -16 [ 70.285993][ T22] usb 6-1: USB disconnect, device number 2 [ 70.295917][ T12] usb 1-1: USB disconnect, device number 2 [ 70.297003][ T22] rio500 6-1:0.67: USB Rio disconnected. [ 70.307629][ T12] ================================================================== [ 70.315878][ T12] BUG: KASAN: double-free or invalid-free in disconnect_rio+0x12b/0x1b0 [ 70.324180][ T12] [ 70.326512][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0+ #0 [ 70.333617][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.343670][ T12] Workqueue: usb_hub_wq hub_event [ 70.348676][ T12] Call Trace: [ 70.351954][ T12] dump_stack+0xca/0x13e [ 70.356207][ T12] print_address_description+0x6a/0x32c [ 70.361761][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.366695][ T12] kasan_report_invalid_free+0x61/0xa0 [ 70.372146][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.377091][ T12] __kasan_slab_free+0x162/0x180 [ 70.382012][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.386853][ T12] kfree+0xe4/0x2f0 [ 70.390644][ T12] disconnect_rio+0x12b/0x1b0 [ 70.395304][ T12] usb_unbind_interface+0x1bd/0x8a0 [ 70.400656][ T12] ? usb_autoresume_device+0x60/0x60 [ 70.405925][ T12] device_release_driver_internal+0x42f/0x500 [ 70.411986][ T12] bus_remove_device+0x2dc/0x4a0 [ 70.416905][ T12] device_del+0x420/0xb10 [ 70.421254][ T12] ? __device_links_no_driver+0x240/0x240 [ 70.426969][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 70.428961][ T17] usb 5-1: USB disconnect, device number 2 [ 70.432250][ T12] ? remove_intf_ep_devs+0x13f/0x1d0 [ 70.432268][ T12] usb_disable_device+0x211/0x690 [ 70.432278][ T12] usb_disconnect+0x284/0x8d0 [ 70.432287][ T12] hub_event+0x1454/0x3640 [ 70.432300][ T12] ? find_held_lock+0x2d/0x110 [ 70.432314][ T12] ? mark_held_locks+0xe0/0xe0 [ 70.450617][ T1742] usb 3-1: USB disconnect, device number 2 [ 70.453047][ T12] ? hub_port_debounce+0x260/0x260 [ 70.453062][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 70.453077][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 70.488655][ T12] process_one_work+0x92b/0x1530 [ 70.493577][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 70.498927][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 70.503928][ T12] worker_thread+0x96/0xe20 [ 70.508413][ T12] ? process_one_work+0x1530/0x1530 [ 70.513588][ T12] kthread+0x318/0x420 [ 70.517642][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 70.522995][ T12] ret_from_fork+0x24/0x30 [ 70.527390][ T12] [ 70.529701][ T12] Allocated by task 22: [ 70.533839][ T12] save_stack+0x1b/0x80 [ 70.537975][ T12] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 70.543603][ T12] probe_rio+0x135/0x248 [ 70.547829][ T12] usb_probe_interface+0x305/0x7a0 [ 70.552920][ T12] really_probe+0x281/0x6d0 [ 70.557401][ T12] driver_probe_device+0x101/0x1b0 [ 70.562495][ T12] __device_attach_driver+0x1c2/0x220 [ 70.567851][ T12] bus_for_each_drv+0x162/0x1e0 [ 70.572703][ T12] __device_attach+0x217/0x360 [ 70.577446][ T12] bus_probe_device+0x1e4/0x290 [ 70.582284][ T12] device_add+0xae6/0x16f0 [ 70.586693][ T12] usb_set_configuration+0xdf6/0x1670 [ 70.592050][ T12] generic_probe+0x9d/0xd5 [ 70.596463][ T12] usb_probe_device+0x99/0x100 [ 70.601207][ T12] really_probe+0x281/0x6d0 [ 70.605690][ T12] driver_probe_device+0x101/0x1b0 [ 70.610866][ T12] __device_attach_driver+0x1c2/0x220 [ 70.616216][ T12] bus_for_each_drv+0x162/0x1e0 [ 70.621045][ T12] __device_attach+0x217/0x360 [ 70.625791][ T12] bus_probe_device+0x1e4/0x290 [ 70.630620][ T12] device_add+0xae6/0x16f0 [ 70.635015][ T12] usb_new_device.cold+0x6a4/0xe79 [ 70.640117][ T12] hub_event+0x1b5c/0x3640 [ 70.644515][ T12] process_one_work+0x92b/0x1530 [ 70.649444][ T12] worker_thread+0x96/0xe20 [ 70.654011][ T12] kthread+0x318/0x420 [ 70.658058][ T12] ret_from_fork+0x24/0x30 [ 70.662446][ T12] [ 70.664783][ T12] Freed by task 22: [ 70.668580][ T12] save_stack+0x1b/0x80 [ 70.672719][ T12] __kasan_slab_free+0x130/0x180 [ 70.677649][ T12] kfree+0xe4/0x2f0 [ 70.681540][ T12] disconnect_rio+0x12b/0x1b0 [ 70.686204][ T12] usb_unbind_interface+0x1bd/0x8a0 [ 70.691387][ T12] device_release_driver_internal+0x42f/0x500 [ 70.697442][ T12] bus_remove_device+0x2dc/0x4a0 [ 70.702368][ T12] device_del+0x420/0xb10 [ 70.707631][ T12] usb_disable_device+0x211/0x690 [ 70.712634][ T12] usb_disconnect+0x284/0x8d0 [ 70.717330][ T12] hub_event+0x1454/0x3640 [ 70.721747][ T12] process_one_work+0x92b/0x1530 [ 70.728053][ T12] worker_thread+0x96/0xe20 [ 70.732537][ T12] kthread+0x318/0x420 [ 70.736586][ T12] ret_from_fork+0x24/0x30 [ 70.741007][ T12] [ 70.743314][ T12] The buggy address belongs to the object at ffff8881d5909100 [ 70.743314][ T12] which belongs to the cache kmalloc-4k of size 4096 [ 70.757348][ T12] The buggy address is located 0 bytes inside of [ 70.757348][ T12] 4096-byte region [ffff8881d5909100, ffff8881d590a100) [ 70.770511][ T12] The buggy address belongs to the page: [ 70.776125][ T12] page:ffffea0007564200 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0 [ 70.787032][ T12] flags: 0x200000000010200(slab|head) [ 70.792397][ T12] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c280 [ 70.801002][ T12] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 70.809565][ T12] page dumped because: kasan: bad access detected [ 70.815981][ T12] [ 70.818301][ T12] Memory state around the buggy address: [ 70.823910][ T12] ffff8881d5909000: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 70.831949][ T12] ffff8881d5909080: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 70.840006][ T12] >ffff8881d5909100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 70.848180][ T12] ^ [ 70.852228][ T12] ffff8881d5909180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 70.860268][ T12] ffff8881d5909200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 70.868318][ T12] ================================================================== [ 70.876412][ T12] Disabling lock debugging due to kernel taint [ 70.882780][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 70.889369][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Tainted: G B 5.3.0+ #0 [ 70.897754][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 70.907840][ T12] Workqueue: usb_hub_wq hub_event [ 70.912851][ T12] Call Trace: [ 70.916138][ T12] dump_stack+0xca/0x13e [ 70.920365][ T12] panic+0x2a3/0x6da [ 70.924241][ T12] ? add_taint.cold+0x16/0x16 [ 70.928898][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.933748][ T12] ? trace_hardirqs_on+0x55/0x1e0 [ 70.938769][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.943612][ T12] end_report+0x43/0x49 [ 70.947758][ T12] kasan_report_invalid_free+0x7d/0xa0 [ 70.953210][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.958039][ T12] __kasan_slab_free+0x162/0x180 [ 70.962958][ T12] ? disconnect_rio+0x12b/0x1b0 [ 70.967807][ T12] kfree+0xe4/0x2f0 [ 70.971595][ T12] disconnect_rio+0x12b/0x1b0 [ 70.976265][ T12] usb_unbind_interface+0x1bd/0x8a0 [ 70.981443][ T12] ? usb_autoresume_device+0x60/0x60 [ 70.986721][ T12] device_release_driver_internal+0x42f/0x500 [ 70.992765][ T12] bus_remove_device+0x2dc/0x4a0 [ 70.997680][ T12] device_del+0x420/0xb10 [ 71.002002][ T12] ? __device_links_no_driver+0x240/0x240 [ 71.007721][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 71.012988][ T12] ? remove_intf_ep_devs+0x13f/0x1d0 [ 71.018265][ T12] usb_disable_device+0x211/0x690 [ 71.023356][ T12] usb_disconnect+0x284/0x8d0 [ 71.028016][ T12] hub_event+0x1454/0x3640 [ 71.032414][ T12] ? find_held_lock+0x2d/0x110 [ 71.037158][ T12] ? mark_held_locks+0xe0/0xe0 [ 71.041912][ T12] ? hub_port_debounce+0x260/0x260 [ 71.047015][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 71.052548][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 71.057816][ T12] process_one_work+0x92b/0x1530 [ 71.062738][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 71.068090][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 71.073112][ T12] worker_thread+0x96/0xe20 [ 71.077593][ T12] ? process_one_work+0x1530/0x1530 [ 71.082771][ T12] kthread+0x318/0x420 [ 71.086818][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 71.092178][ T12] ret_from_fork+0x24/0x30 [ 71.097367][ T12] Kernel Offset: disabled [ 71.101686][ T12] Rebooting in 86400 seconds..