Warning: Permanently added '10.128.0.116' (ED25519) to the list of known hosts. executing program [ 35.589853][ T24] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 35.739704][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 35.742174][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 35.742401][ T24] usb 1-1: config 0 has no interface number 0 [ 35.744603][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 35.744638][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 35.744733][ T24] usb 1-1: Product: syz [ 35.744755][ T24] usb 1-1: Manufacturer: syz [ 35.744776][ T24] usb 1-1: SerialNumber: syz [ 35.751807][ T24] usb 1-1: config 0 descriptor?? [ 35.958661][ T24] usb 1-1: USB disconnect, device number 2 [ 35.960699][ T24] ======================================== ** replaying previous printk message ** [ 35.960699][ T24] ================================================================== [ 35.960720][ T24] BUG: KASAN: slab-use-after-free in hdm_disconnect+0xf4/0x18c [ 35.960746][ T24] Read of size 8 at addr ffff0000c97e58a8 by task kworker/1:0/24 [ 35.960762][ T24] [ 35.960773][ T24] CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Not tainted 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT [ 35.960787][ T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 35.960794][ T24] Workqueue: usb_hub_wq hub_event [ 35.960807][ T24] Call trace: [ 35.960811][ T24] show_stack+0x2c/0x3c (C) [ 35.960827][ T24] __dump_stack+0x30/0x40 [ 35.960842][ T24] dump_stack_lvl+0xd8/0x12c [ 35.960855][ T24] print_address_description+0xa8/0x254 [ 35.960869][ T24] print_report+0x68/0x84 [ 35.960881][ T24] kasan_report+0xb0/0x110 [ 35.960892][ T24] __asan_report_load8_noabort+0x20/0x2c [ 35.960904][ T24] hdm_disconnect+0xf4/0x18c [ 35.960916][ T24] usb_unbind_interface+0x244/0x7c8 [ 35.960930][ T24] device_release_driver_internal+0x3f8/0x658 [ 35.960943][ T24] device_release_driver+0x28/0x38 [ 35.960953][ T24] bus_remove_device+0x310/0x3b0 [ 35.960974][ T24] device_del+0x47c/0x808 [ 35.960986][ T24] usb_disable_device+0x33c/0x780 [ 35.960999][ T24] usb_disconnect+0x284/0x7f8 [ 35.961013][ T24] hub_event+0x1698/0x3cf0 [ 35.961024][ T24] process_one_work+0x7e8/0x155c [ 35.961038][ T24] worker_thread+0x958/0xed8 [ 35.961051][ T24] kthread+0x5fc/0x75c [ 35.961063][ T24] ret_from_fork+0x10/0x20 [ 35.961074][ T24] [ 35.961188][ T24] Allocated by task 24: [ 35.961199][ T24] kasan_save_track+0x40/0x78 [ 35.961217][ T24] kasan_save_alloc_info+0x44/0x54 [ 35.961233][ T24] __kasan_kmalloc+0x9c/0xb4 [ 35.961251][ T24] __kmalloc_cache_noprof+0x2a4/0x3fc [ 35.961266][ T24] hdm_probe+0x9c/0x1044 [ 35.961282][ T24] usb_probe_interface+0x584/0xa44 [ 35.961300][ T24] really_probe+0x394/0x910 [ 35.961314][ T24] __driver_probe_device+0x180/0x2d4 [ 35.961330][ T24] driver_probe_device+0x78/0x330 [ 35.961345][ T24] __device_attach_driver+0x290/0x4e0 [ 35.961360][ T24] bus_for_each_drv+0x220/0x2b4 [ 35.961378][ T24] __device_attach+0x26c/0x388 [ 35.961392][ T24] device_initial_probe+0x24/0x34 [ 35.961407][ T24] bus_probe_device+0x178/0x240 [ 35.961425][ T24] device_add+0x71c/0xa60 [ 35.961441][ T24] usb_set_configuration+0x1640/0x1bac [ 35.961458][ T24] usb_generic_driver_probe+0x8c/0x144 [ 35.961475][ T24] usb_probe_device+0x1a4/0x348 [ 35.961493][ T24] really_probe+0x394/0x910 [ 35.961507][ T24] __driver_probe_device+0x180/0x2d4 [ 35.961522][ T24] driver_probe_device+0x78/0x330 [ 35.961537][ T24] __device_attach_driver+0x290/0x4e0 [ 35.961553][ T24] bus_for_each_drv+0x220/0x2b4 [ 35.961577][ T24] __device_attach+0x26c/0x388 [ 35.961592][ T24] device_initial_probe+0x24/0x34 [ 35.961610][ T24] bus_probe_device+0x178/0x240 [ 35.961628][ T24] device_add+0x71c/0xa60 [ 35.961644][ T24] usb_new_device+0x7f0/0x1220 [ 35.961662][ T24] hub_event+0x2148/0x3cf0 [ 35.961677][ T24] process_one_work+0x7e8/0x155c [ 35.961694][ T24] worker_thread+0x958/0xed8 [ 35.961711][ T24] kthread+0x5fc/0x75c [ 35.961727][ T24] ret_from_fork+0x10/0x20 [ 35.961742][ T24] [ 35.961750][ T24] Freed by task 24: [ 35.961761][ T24] kasan_save_track+0x40/0x78 [ 35.961779][ T24] kasan_save_free_info+0x58/0x70 [ 35.961794][ T24] __kasan_slab_free+0x68/0x88 [ 35.961812][ T24] kfree+0x17c/0x474 [ 35.961830][ T24] release_mdev+0x20/0x30 [ 35.961846][ T24] device_release+0x8c/0x1ac [ 35.961863][ T24] kobject_put+0x2b0/0x438 [ 35.961881][ T24] device_unregister+0x3c/0xcc [ 35.961897][ T24] most_deregister_interface+0x3e0/0x42c [ 35.961914][ T24] hdm_disconnect+0xdc/0x18c [ 35.961931][ T24] usb_unbind_interface+0x244/0x7c8 [ 35.961948][ T24] device_release_driver_internal+0x3f8/0x658 [ 35.961963][ T24] device_release_driver+0x28/0x38 [ 35.961978][ T24] bus_remove_device+0x310/0x3b0 [ 35.961996][ T24] device_del+0x47c/0x808 [ 35.962012][ T24] usb_disable_device+0x33c/0x780 [ 35.962028][ T24] usb_disconnect+0x284/0x7f8 [ 35.962046][ T24] hub_event+0x1698/0x3cf0 [ 35.962060][ T24] process_one_work+0x7e8/0x155c [ 35.962077][ T24] worker_thread+0x958/0xed8 [ 35.962095][ T24] kthread+0x5fc/0x75c [ 35.962111][ T24] ret_from_fork+0x10/0x20 [ 35.962125][ T24] [ 35.962134][ T24] The buggy address belongs to the object at ffff0000c97e4000 [ 35.962134][ T24] which belongs to the cache kmalloc-8k of size 8192 [ 35.962149][ T24] The buggy address is located 6312 bytes inside of [ 35.962149][ T24] freed 8192-byte region [ffff0000c97e4000, ffff0000c97e6000) [ 35.962168][ T24] [ 35.962177][ T24] The buggy address belongs to the physical page: [ 35.962188][ T24] page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x1097e0 [ 35.962205][ T24] head: order:3 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0 [ 35.962221][ T24] flags: 0x5ffc00000000040(head|node=0|zone=2|lastcpupid=0x7ff) [ 35.962238][ T24] page_type: f5(slab) [ 35.962255][ T24] raw: 05ffc00000000040 ffff0000c0002280 dead000000000122 0000000000000000 [ 35.962271][ T24] raw: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 35.962287][ T24] head: 05ffc00000000040 ffff0000c0002280 dead000000000122 0000000000000000 [ 35.962302][ T24] head: 0000000000000000 0000000080020002 00000000f5000000 0000000000000000 [ 35.962319][ T24] head: 05ffc00000000003 fffffdffc325f801 00000000ffffffff 00000000ffffffff [ 35.962334][ T24] head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000008 [ 35.962346][ T24] page dumped because: kasan: bad access detected [ 35.962357][ T24] [ 35.962365][ T24] Memory state around the buggy address: [ 35.962378][ T24] ffff0000c97e5780: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.962391][ T24] ffff0000c97e5800: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.962405][ T24] >ffff0000c97e5880: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.962421][ T24] ^ [ 35.962433][ T24] ffff0000c97e5900: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.962446][ T24] ffff0000c97e5980: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 35.962458][ T24] ================================================================== [ 35.962470][ T24] Disabling lock debugging due to kernel taint [ 35.962486][ T24] ------------[ cut here ]------------ [ 35.962499][ T24] refcount_t: underflow; use-after-free. [ 35.962908][ T24] WARNING: CPU: 1 PID: 24 at lib/refcount.c:28 refcount_warn_saturate+0x154/0x1f8 [ 36.136020][ T24] Modules linked in: [ 36.137117][ T24] CPU: 1 UID: 0 PID: 24 Comm: kworker/1:0 Tainted: G B 6.16.0-rc2-syzkaller-g9aa9b43d689e #0 PREEMPT [ 36.140733][ T24] Tainted: [B]=BAD_PAGE executing program [ 36.141887][ T24] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 [ 36.144760][ T24] Workqueue: usb_hub_wq hub_event [ 36.146238][ T24] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 36.148378][ T24] pc : refcount_warn_saturate+0x154/0x1f8 [ 36.150014][ T24] lr : refcount_warn_saturate+0x154/0x1f8 [ 36.151629][ T24] sp : ffff800097b17330 [ 36.152754][ T24] x29: ffff800097b17330 x28: ffff0000c72f80b0 x27: 1fffe00018e5fa00 [ 36.155072][ T24] x26: 1fffe00018e5fa07 x25: dfff800000000000 x24: ffff800092440fb0 [ 36.157338][ T24] x23: 1fffe000192fc8a1 x22: ffff0000c72fd03c x21: 0000000000000000 [ 36.159592][ T24] x20: ffff0000c72fd038 x19: ffff800092c10000 x18: 00000000ffffffff [ 36.161829][ T24] x17: 0000000000000000 x16: ffff80008ae33808 x15: ffff700011ed61d4 [ 36.164076][ T24] x14: 1ffff00011ed61d4 x13: 0000000000000004 x12: ffffffffffffffff [ 36.166355][ T24] x11: ffff700011ed61d4 x10: 0000000000ff0100 x9 : 0abddf6f35afc100 [ 36.168588][ T24] x8 : 0abddf6f35afc100 x7 : 0000000000000001 x6 : 0000000000000001 [ 36.170861][ T24] x5 : ffff800097b16c78 x4 : ffff80008f727060 x3 : ffff80008054c348 [ 36.173044][ T24] x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000000 [ 36.175268][ T24] Call trace: [ 36.176145][ T24] refcount_warn_saturate+0x154/0x1f8 (P) [ 36.177710][ T24] kobject_put+0x194/0x438 [ 36.178869][ T24] put_device+0x28/0x40 [ 36.179974][ T24] hdm_disconnect+0x16c/0x18c [ 36.181246][ T24] usb_unbind_interface+0x244/0x7c8 [ 36.182711][ T24] device_release_driver_internal+0x3f8/0x658 [ 36.184372][ T24] device_release_driver+0x28/0x38 [ 36.185789][ T24] bus_remove_device+0x310/0x3b0 [ 36.187124][ T24] device_del+0x47c/0x808 [ 36.188301][ T24] usb_disable_device+0x33c/0x780 [ 36.189728][ T24] usb_disconnect+0x284/0x7f8 [ 36.191002][ T24] hub_event+0x1698/0x3cf0 [ 36.192174][ T24] process_one_work+0x7e8/0x155c [ 36.193472][ T24] worker_thread+0x958/0xed8 [ 36.194745][ T24] kthread+0x5fc/0x75c [ 36.195897][ T24] ret_from_fork+0x10/0x20 [ 36.197137][ T24] irq event stamp: 94565 [ 36.198289][ T24] hardirqs last enabled at (94565): [] _raw_spin_unlock_irqrestore+0x38/0x98 [ 36.201153][ T24] hardirqs last disabled at (94564): [] _raw_spin_lock_irqsave+0x2c/0x7c [ 36.203854][ T24] softirqs last enabled at (94226): [] handle_softirqs+0xaf8/0xc88 [ 36.206532][ T24] softirqs last disabled at (94211): [] __do_softirq+0x14/0x20 [ 36.208998][ T24] ---[ end trace 0000000000000000 ]--- [ 36.499644][ T24] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 36.649657][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 36.650959][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 36.650987][ T24] usb 1-1: config 0 has no interface number 0 [ 36.652510][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 36.652539][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 36.652567][ T24] usb 1-1: Product: syz [ 36.652585][ T24] usb 1-1: Manufacturer: syz [ 36.652608][ T24] usb 1-1: SerialNumber: syz [ 36.653892][ T24] usb 1-1: config 0 descriptor?? [ 36.855504][ T24] usb 1-1: USB disconnect, device number 3 executing program [ 37.179707][ T24] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 37.329683][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 37.330828][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 37.330857][ T24] usb 1-1: config 0 has no interface number 0 [ 37.332212][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 37.332241][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 37.332262][ T24] usb 1-1: Product: syz [ 37.332281][ T24] usb 1-1: Manufacturer: syz [ 37.332299][ T24] usb 1-1: SerialNumber: syz [ 37.333644][ T24] usb 1-1: config 0 descriptor?? [ 37.537283][ T24] usb 1-1: USB disconnect, device number 4 executing program [ 37.859681][ T24] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 38.009657][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 38.010796][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 38.010824][ T24] usb 1-1: config 0 has no interface number 0 [ 38.012177][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 38.012205][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.012226][ T24] usb 1-1: Product: syz [ 38.012245][ T24] usb 1-1: Manufacturer: syz [ 38.012263][ T24] usb 1-1: SerialNumber: syz [ 38.013581][ T24] usb 1-1: config 0 descriptor?? [ 38.217432][ T24] usb 1-1: USB disconnect, device number 5 executing program [ 38.549721][ T24] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 38.699649][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 38.700980][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 38.701008][ T24] usb 1-1: config 0 has no interface number 0 [ 38.702605][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 38.702634][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 38.702656][ T24] usb 1-1: Product: syz [ 38.702674][ T24] usb 1-1: Manufacturer: syz [ 38.702692][ T24] usb 1-1: SerialNumber: syz [ 38.703950][ T24] usb 1-1: config 0 descriptor?? [ 38.906286][ T24] usb 1-1: USB disconnect, device number 6 executing program [ 39.229781][ T24] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 39.379645][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 39.380810][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 39.380838][ T24] usb 1-1: config 0 has no interface number 0 [ 39.382203][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 39.382229][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 39.382251][ T24] usb 1-1: Product: syz [ 39.382269][ T24] usb 1-1: Manufacturer: syz [ 39.382287][ T24] usb 1-1: SerialNumber: syz [ 39.383602][ T24] usb 1-1: config 0 descriptor?? [ 39.587039][ T24] usb 1-1: USB disconnect, device number 7 executing program [ 39.919702][ T24] usb 1-1: new high-speed USB device number 8 using dummy_hcd [ 40.069729][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 40.070884][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 40.070912][ T24] usb 1-1: config 0 has no interface number 0 [ 40.072279][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 40.072307][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 40.072328][ T24] usb 1-1: Product: syz [ 40.072347][ T24] usb 1-1: Manufacturer: syz [ 40.072365][ T24] usb 1-1: SerialNumber: syz [ 40.073694][ T24] usb 1-1: config 0 descriptor?? [ 40.279718][ T24] usb 1-1: USB disconnect, device number 8 executing program [ 40.609677][ T24] usb 1-1: new high-speed USB device number 9 using dummy_hcd [ 40.759682][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 40.760860][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 40.760893][ T24] usb 1-1: config 0 has no interface number 0 [ 40.762265][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 40.762292][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 40.762314][ T24] usb 1-1: Product: syz [ 40.762332][ T24] usb 1-1: Manufacturer: syz [ 40.762350][ T24] usb 1-1: SerialNumber: syz [ 40.763662][ T24] usb 1-1: config 0 descriptor?? [ 40.968807][ T24] usb 1-1: USB disconnect, device number 9 executing program [ 41.299728][ T24] usb 1-1: new high-speed USB device number 10 using dummy_hcd [ 41.449728][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 41.450947][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 41.450980][ T24] usb 1-1: config 0 has no interface number 0 [ 41.452341][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 41.452369][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 41.452391][ T24] usb 1-1: Product: syz [ 41.452409][ T24] usb 1-1: Manufacturer: syz [ 41.452428][ T24] usb 1-1: SerialNumber: syz [ 41.456898][ T24] usb 1-1: config 0 descriptor?? [ 41.660366][ T24] usb 1-1: USB disconnect, device number 10 executing program [ 41.989743][ T24] usb 1-1: new high-speed USB device number 11 using dummy_hcd [ 42.139693][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 42.140843][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 42.140871][ T24] usb 1-1: config 0 has no interface number 0 [ 42.142243][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 42.142270][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 42.142292][ T24] usb 1-1: Product: syz [ 42.142310][ T24] usb 1-1: Manufacturer: syz [ 42.142329][ T24] usb 1-1: SerialNumber: syz [ 42.146265][ T24] usb 1-1: config 0 descriptor?? [ 42.352135][ T24] usb 1-1: USB disconnect, device number 11 executing program [ 42.679696][ T24] usb 1-1: new high-speed USB device number 12 using dummy_hcd [ 42.829665][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 42.830800][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 42.830829][ T24] usb 1-1: config 0 has no interface number 0 [ 42.832192][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 42.832220][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 42.832241][ T24] usb 1-1: Product: syz [ 42.832260][ T24] usb 1-1: Manufacturer: syz [ 42.832278][ T24] usb 1-1: SerialNumber: syz [ 42.833610][ T24] usb 1-1: config 0 descriptor?? [ 43.035859][ T24] usb 1-1: USB disconnect, device number 12 executing program [ 43.379620][ T24] usb 1-1: new high-speed USB device number 13 using dummy_hcd [ 43.529648][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 43.530798][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 43.530826][ T24] usb 1-1: config 0 has no interface number 0 [ 43.532208][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 43.532236][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 43.532258][ T24] usb 1-1: Product: syz [ 43.532276][ T24] usb 1-1: Manufacturer: syz [ 43.532294][ T24] usb 1-1: SerialNumber: syz [ 43.533682][ T24] usb 1-1: config 0 descriptor?? [ 43.737666][ T6517] usb 1-1: USB disconnect, device number 13 executing program [ 44.069727][ T6517] usb 1-1: new high-speed USB device number 14 using dummy_hcd [ 44.219671][ T6517] usb 1-1: Using ep0 maxpacket: 32 [ 44.220813][ T6517] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 44.220842][ T6517] usb 1-1: config 0 has no interface number 0 [ 44.222197][ T6517] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 44.222224][ T6517] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 44.222246][ T6517] usb 1-1: Product: syz [ 44.222264][ T6517] usb 1-1: Manufacturer: syz [ 44.222282][ T6517] usb 1-1: SerialNumber: syz [ 44.223620][ T6517] usb 1-1: config 0 descriptor?? [ 44.426811][ T24] usb 1-1: USB disconnect, device number 14 executing program [ 44.759724][ T24] usb 1-1: new high-speed USB device number 15 using dummy_hcd [ 44.909686][ T24] usb 1-1: Using ep0 maxpacket: 32 [ 44.912348][ T24] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 44.912400][ T24] usb 1-1: config 0 has no interface number 0 [ 44.913990][ T24] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 44.914019][ T24] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 44.914040][ T24] usb 1-1: Product: syz [ 44.914059][ T24] usb 1-1: Manufacturer: syz [ 44.914077][ T24] usb 1-1: SerialNumber: syz [ 44.915406][ T24] usb 1-1: config 0 descriptor?? [ 45.119351][ T1815] usb 1-1: USB disconnect, device number 15 executing program [ 45.449663][ T1815] usb 1-1: new high-speed USB device number 16 using dummy_hcd [ 45.599639][ T1815] usb 1-1: Using ep0 maxpacket: 32 [ 45.600938][ T1815] usb 1-1: config 0 has an invalid interface number: 237 but max is 0 [ 45.600965][ T1815] usb 1-1: config 0 has no interface number 0 [ 45.602493][ T1815] usb 1-1: New USB device found, idVendor=0424, idProduct=cf19, bcdDevice=55.89 [ 45.602522][ T1815] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 45.602543][ T1815] usb 1-1: Product: syz [ 45.602570][ T1815] usb 1-1: Manufacturer: syz [ 45.602593][ T1815] usb 1-1: SerialNumber: syz [ 45.603915][ T1815] usb 1-1: config 0 descriptor?? [ 45.806249][ T9] usb 1-1: USB disconnect, device number 16 executing program