Warning: Permanently added '10.128.10.17' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 63.522111][ T101] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 63.522121][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 63.537227][ T12] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 63.542047][ T17] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 63.544731][ T1732] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 63.544816][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 63.772054][ T22] usb 1-1: Using ep0 maxpacket: 16 [ 63.792063][ T1732] usb 5-1: Using ep0 maxpacket: 16 [ 63.792126][ T17] usb 4-1: Using ep0 maxpacket: 16 [ 63.812117][ T101] usb 2-1: Using ep0 maxpacket: 16 [ 63.817368][ T12] usb 6-1: Using ep0 maxpacket: 16 [ 63.822577][ T5] usb 3-1: Using ep0 maxpacket: 16 [ 63.892113][ T22] usb 1-1: config 0 has an invalid interface number: 133 but max is 0 [ 63.900426][ T22] usb 1-1: config 0 has no interface number 0 [ 63.906647][ T22] usb 1-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 63.915705][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 63.923811][ T17] usb 4-1: config 0 has an invalid interface number: 133 but max is 0 [ 63.931948][ T17] usb 4-1: config 0 has no interface number 0 [ 63.932252][ T1732] usb 5-1: config 0 has an invalid interface number: 133 but max is 0 [ 63.939738][ T22] usb 1-1: config 0 descriptor?? [ 63.946310][ T1732] usb 5-1: config 0 has no interface number 0 [ 63.951196][ T17] usb 4-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 63.960182][ T12] usb 6-1: config 0 has an invalid interface number: 133 but max is 0 [ 63.966272][ T17] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 63.971313][ T17] usb 4-1: config 0 descriptor?? [ 63.974459][ T12] usb 6-1: config 0 has no interface number 0 [ 63.993442][ T101] usb 2-1: config 0 has an invalid interface number: 133 but max is 0 [ 64.001566][ T101] usb 2-1: config 0 has no interface number 0 [ 64.003740][ T22] rio500 1-1:0.133: USB Rio found at address 2 [ 64.007843][ T5] usb 3-1: config 0 has an invalid interface number: 133 but max is 0 [ 64.021969][ T5] usb 3-1: config 0 has no interface number 0 [ 64.023250][ T17] rio500 4-1:0.133: USB Rio found at address 2 [ 64.028391][ T101] usb 2-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 64.043295][ T101] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.051437][ T5] usb 3-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 64.060575][ T5] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.068632][ T1732] usb 5-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 64.077704][ T1732] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.086122][ T12] usb 6-1: New USB device found, idVendor=0841, idProduct=0001, bcdDevice=c5.d0 [ 64.095197][ T12] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 64.103605][ T101] usb 2-1: config 0 descriptor?? [ 64.109529][ T5] usb 3-1: config 0 descriptor?? [ 64.114858][ T1732] usb 5-1: config 0 descriptor?? [ 64.121054][ T12] usb 6-1: config 0 descriptor?? [ 64.143519][ T101] rio500 2-1:0.133: Second USB Rio at address 2 refused [ 64.150723][ T101] rio500: probe of 2-1:0.133 failed with error -16 [ 64.173409][ T12] rio500 6-1:0.133: Second USB Rio at address 2 refused [ 64.180406][ T12] rio500: probe of 6-1:0.133 failed with error -16 [ 64.188098][ T1732] rio500 5-1:0.133: Second USB Rio at address 2 refused [ 64.196315][ T5] rio500 3-1:0.133: Second USB Rio at address 2 refused [ 64.202533][ T1721] usb 4-1: Rio opened. [ 64.203422][ T1732] rio500: probe of 5-1:0.133 failed with error -16 [ 64.208031][ T1721] usb 4-1: Rio closed. [ 64.214072][ T5] rio500: probe of 3-1:0.133 failed with error -16 [ 64.222224][ T1727] usb 4-1: Rio opened. [ 64.232987][ T5] usb 1-1: USB disconnect, device number 2 [ 64.236541][ T1727] usb 4-1: Rio closed. executing program executing program [ 64.244106][ T5] rio500 1-1:0.133: USB Rio disconnected. [ 64.247330][ T17] usb 4-1: USB disconnect, device number 2 [ 64.263505][ T17] ================================================================== [ 64.271690][ T17] BUG: KASAN: double-free or invalid-free in disconnect_rio+0x12b/0x1b0 [ 64.280062][ T17] [ 64.282372][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Not tainted 5.3.0+ #0 [ 64.289372][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.299419][ T17] Workqueue: usb_hub_wq hub_event [ 64.304416][ T17] Call Trace: [ 64.307685][ T17] dump_stack+0xca/0x13e [ 64.311908][ T17] print_address_description+0x6a/0x32c [ 64.317427][ T17] ? disconnect_rio+0x12b/0x1b0 [ 64.322251][ T17] kasan_report_invalid_free+0x61/0xa0 [ 64.327683][ T17] ? disconnect_rio+0x12b/0x1b0 [ 64.332517][ T17] __kasan_slab_free+0x162/0x180 [ 64.337438][ T17] ? disconnect_rio+0x12b/0x1b0 executing program executing program [ 64.342268][ T17] kfree+0xe4/0x2f0 [ 64.343792][ T1732] usb 2-1: USB disconnect, device number 2 [ 64.346063][ T17] disconnect_rio+0x12b/0x1b0 [ 64.356514][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 64.361780][ T17] ? usb_autoresume_device+0x60/0x60 [ 64.367061][ T17] device_release_driver_internal+0x42f/0x500 [ 64.373118][ T17] bus_remove_device+0x2dc/0x4a0 [ 64.373938][ T12] usb 6-1: USB disconnect, device number 2 [ 64.378047][ T17] device_del+0x420/0xb10 [ 64.378061][ T17] ? __device_links_no_driver+0x240/0x240 executing program [ 64.378076][ T17] ? lockdep_hardirqs_on+0x379/0x580 [ 64.378088][ T17] ? remove_intf_ep_devs+0x13f/0x1d0 [ 64.378102][ T17] usb_disable_device+0x211/0x690 [ 64.397916][ T101] usb 3-1: USB disconnect, device number 2 [ 64.399148][ T17] usb_disconnect+0x284/0x8d0 [ 64.399159][ T17] hub_event+0x1454/0x3640 [ 64.399173][ T17] ? find_held_lock+0x2d/0x110 [ 64.399185][ T17] ? mark_held_locks+0xe0/0xe0 [ 64.399195][ T17] ? hub_port_debounce+0x260/0x260 [ 64.399207][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 64.399221][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 64.449662][ T17] process_one_work+0x92b/0x1530 [ 64.454576][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 64.459924][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 64.464934][ T17] worker_thread+0x96/0xe20 [ 64.469420][ T17] ? process_one_work+0x1530/0x1530 [ 64.474593][ T17] kthread+0x318/0x420 [ 64.478635][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 64.483994][ T17] ret_from_fork+0x24/0x30 [ 64.488394][ T17] [ 64.490698][ T17] Allocated by task 17: [ 64.494837][ T17] save_stack+0x1b/0x80 [ 64.498972][ T17] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 64.504582][ T17] probe_rio+0x135/0x248 [ 64.508802][ T17] usb_probe_interface+0x305/0x7a0 [ 64.513886][ T17] really_probe+0x281/0x6d0 [ 64.518361][ T17] driver_probe_device+0x101/0x1b0 [ 64.523455][ T17] __device_attach_driver+0x1c2/0x220 [ 64.528895][ T17] bus_for_each_drv+0x162/0x1e0 [ 64.533717][ T17] __device_attach+0x217/0x360 [ 64.538459][ T17] bus_probe_device+0x1e4/0x290 [ 64.543282][ T17] device_add+0xae6/0x16f0 [ 64.547680][ T17] usb_set_configuration+0xdf6/0x1670 [ 64.553025][ T17] generic_probe+0x9d/0xd5 [ 64.557414][ T17] usb_probe_device+0x99/0x100 [ 64.562159][ T17] really_probe+0x281/0x6d0 [ 64.566652][ T17] driver_probe_device+0x101/0x1b0 [ 64.571743][ T17] __device_attach_driver+0x1c2/0x220 [ 64.577087][ T17] bus_for_each_drv+0x162/0x1e0 [ 64.581917][ T17] __device_attach+0x217/0x360 [ 64.586656][ T17] bus_probe_device+0x1e4/0x290 [ 64.591478][ T17] device_add+0xae6/0x16f0 [ 64.595868][ T17] usb_new_device.cold+0x6a4/0xe79 [ 64.600953][ T17] hub_event+0x1b5c/0x3640 [ 64.605350][ T17] process_one_work+0x92b/0x1530 [ 64.610258][ T17] worker_thread+0x96/0xe20 [ 64.614740][ T17] kthread+0x318/0x420 [ 64.618794][ T17] ret_from_fork+0x24/0x30 [ 64.623187][ T17] [ 64.625491][ T17] Freed by task 5: [ 64.629186][ T17] save_stack+0x1b/0x80 [ 64.633319][ T17] __kasan_slab_free+0x130/0x180 [ 64.638239][ T17] kfree+0xe4/0x2f0 [ 64.642025][ T17] disconnect_rio+0x12b/0x1b0 [ 64.646676][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 64.651848][ T17] device_release_driver_internal+0x42f/0x500 [ 64.657884][ T17] bus_remove_device+0x2dc/0x4a0 [ 64.662805][ T17] device_del+0x420/0xb10 [ 64.667121][ T17] usb_disable_device+0x211/0x690 [ 64.672126][ T17] usb_disconnect+0x284/0x8d0 [ 64.676779][ T17] hub_event+0x1454/0x3640 [ 64.681185][ T17] process_one_work+0x92b/0x1530 [ 64.686101][ T17] worker_thread+0x96/0xe20 [ 64.690589][ T17] kthread+0x318/0x420 [ 64.694641][ T17] ret_from_fork+0x24/0x30 [ 64.699041][ T17] [ 64.701350][ T17] The buggy address belongs to the object at ffff8881d3748000 [ 64.701350][ T17] which belongs to the cache kmalloc-4k of size 4096 [ 64.715386][ T17] The buggy address is located 0 bytes inside of [ 64.715386][ T17] 4096-byte region [ffff8881d3748000, ffff8881d3749000) [ 64.728545][ T17] The buggy address belongs to the page: [ 64.734171][ T17] page:ffffea00074dd200 refcount:1 mapcount:0 mapping:ffff8881da00c280 index:0x0 compound_mapcount: 0 [ 64.745084][ T17] flags: 0x200000000010200(slab|head) [ 64.750434][ T17] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c280 [ 64.759006][ T17] raw: 0000000000000000 0000000000070007 00000001ffffffff 0000000000000000 [ 64.767568][ T17] page dumped because: kasan: bad access detected [ 64.773958][ T17] [ 64.776301][ T17] Memory state around the buggy address: [ 64.781937][ T17] ffff8881d3747f00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 64.789985][ T17] ffff8881d3747f80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 64.798035][ T17] >ffff8881d3748000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 64.806068][ T17] ^ [ 64.810113][ T17] ffff8881d3748080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 64.818148][ T17] ffff8881d3748100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 64.826181][ T17] ================================================================== [ 64.834211][ T17] Disabling lock debugging due to kernel taint [ 64.840530][ T17] Kernel panic - not syncing: panic_on_warn set ... executing program [ 64.846005][ T1735] usb 5-1: USB disconnect, device number 2 [ 64.847112][ T17] CPU: 1 PID: 17 Comm: kworker/1:0 Tainted: G B 5.3.0+ #0 [ 64.861291][ T17] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 64.871337][ T17] Workqueue: usb_hub_wq hub_event [ 64.876333][ T17] Call Trace: [ 64.879595][ T17] dump_stack+0xca/0x13e [ 64.883812][ T17] panic+0x2a3/0x6da [ 64.887677][ T17] ? add_taint.cold+0x16/0x16 [ 64.892327][ T17] ? disconnect_rio+0x12b/0x1b0 [ 64.897151][ T17] ? trace_hardirqs_on+0x55/0x1e0 [ 64.902147][ T17] ? disconnect_rio+0x12b/0x1b0 [ 64.906970][ T17] end_report+0x43/0x49 [ 64.911100][ T17] kasan_report_invalid_free+0x7d/0xa0 [ 64.916540][ T17] ? disconnect_rio+0x12b/0x1b0 [ 64.921364][ T17] __kasan_slab_free+0x162/0x180 [ 64.926273][ T17] ? disconnect_rio+0x12b/0x1b0 [ 64.931096][ T17] kfree+0xe4/0x2f0 [ 64.934894][ T17] disconnect_rio+0x12b/0x1b0 [ 64.939556][ T17] usb_unbind_interface+0x1bd/0x8a0 [ 64.944750][ T17] ? usb_autoresume_device+0x60/0x60 [ 64.950021][ T17] device_release_driver_internal+0x42f/0x500 [ 64.956071][ T17] bus_remove_device+0x2dc/0x4a0 [ 64.960986][ T17] device_del+0x420/0xb10 [ 64.965290][ T17] ? __device_links_no_driver+0x240/0x240 [ 64.970982][ T17] ? lockdep_hardirqs_on+0x379/0x580 [ 64.976241][ T17] ? remove_intf_ep_devs+0x13f/0x1d0 [ 64.981505][ T17] usb_disable_device+0x211/0x690 [ 64.986509][ T17] usb_disconnect+0x284/0x8d0 [ 64.991171][ T17] hub_event+0x1454/0x3640 [ 64.995565][ T17] ? find_held_lock+0x2d/0x110 [ 65.000300][ T17] ? mark_held_locks+0xe0/0xe0 [ 65.005037][ T17] ? hub_port_debounce+0x260/0x260 [ 65.010123][ T17] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 65.015642][ T17] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 65.020900][ T17] process_one_work+0x92b/0x1530 [ 65.025811][ T17] ? pwq_dec_nr_in_flight+0x310/0x310 [ 65.031201][ T17] ? do_raw_spin_lock+0x11a/0x280 [ 65.036211][ T17] worker_thread+0x96/0xe20 [ 65.040726][ T17] ? process_one_work+0x1530/0x1530 [ 65.045894][ T17] kthread+0x318/0x420 [ 65.049948][ T17] ? kthread_create_on_node+0xf0/0xf0 [ 65.055293][ T17] ret_from_fork+0x24/0x30 [ 65.060266][ T17] Kernel Offset: disabled [ 65.064572][ T17] Rebooting in 86400 seconds..