[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.39' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.409810][ T3475] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 50.769806][ T3475] usb 1-1: config 1 has 2 interfaces, different from the descriptor's value: 3 [ 50.778846][ T3475] usb 1-1: config 1 has no interface number 1 [ 50.785406][ T3475] usb 1-1: Duplicate descriptor for config 1 interface 0 altsetting 0, skipping [ 50.794699][ T3475] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 50.805802][ T3475] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x82 has invalid wMaxPacketSize 0 [ 50.969799][ T3475] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 [ 50.978848][ T3475] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 50.986896][ T3475] usb 1-1: Product: syz [ 50.991170][ T3475] usb 1-1: Manufacturer: syz [ 50.995759][ T3475] usb 1-1: SerialNumber: syz [ 51.354958][ T3475] usb 1-1: USB disconnect, device number 2 executing program [ 56.808855][ T3475] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 57.178833][ T3475] usb 1-1: config 1 has 2 interfaces, different from the descriptor's value: 3 [ 57.187820][ T3475] usb 1-1: config 1 has no interface number 1 [ 57.194367][ T3475] usb 1-1: Duplicate descriptor for config 1 interface 0 altsetting 0, skipping [ 57.203784][ T3475] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 57.214917][ T3475] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x82 has invalid wMaxPacketSize 0 [ 57.388882][ T3475] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 [ 57.397924][ T3475] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 57.406014][ T3475] usb 1-1: Product: syz [ 57.410223][ T3475] usb 1-1: Manufacturer: syz [ 57.414804][ T3475] usb 1-1: SerialNumber: syz [ 57.771131][ T3475] usb 1-1: USB disconnect, device number 3 [ 58.774288][ T8391] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 65.006762][ T8391] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888105941d60 (size 32): comm "kworker/0:2", pid 3475, jiffies 4294942396 (age 13.720s) hex dump (first 32 bytes): 63 61 72 64 33 00 00 00 00 00 00 00 00 00 00 00 card3........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kvasprintf+0x6c/0xf0 [] kvasprintf_const+0x58/0x110 [] kobject_set_name_vargs+0x3b/0xe0 [] dev_set_name+0x63/0x90 [] snd_ctl_led_register+0x17e/0x2f0 [] snd_ctl_dev_register+0x78/0xb0 [] snd_device_register_all+0x7b/0xd0 [] snd_card_register+0x90/0x2b0 [] usb_audio_probe+0x564/0x1280 [] usb_probe_interface+0x177/0x370 [] really_probe+0x159/0x500 [] driver_probe_device+0x8b/0x100 [] __device_attach_driver+0xf6/0x120 [] bus_for_each_drv+0xb7/0x100 [] __device_attach+0x122/0x260 [] bus_probe_device+0xc6/0xe0 BUG: memory leak unreferenced object 0xffff888113ab2300 (size 32): comm "kworker/0:2", pid 3475, jiffies 4294942396 (age 13.720s) hex dump (first 32 bytes): 63 61 72 64 33 00 00 00 00 00 00 00 00 00 00 00 card3........... 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [] kvasprintf+0x6c/0xf0 [] kvasprintf_const+0x58/0x110 [] kobject_set_name_vargs+0x3b/0xe0 [] dev_set_name+0x63/0x90 [] snd_ctl_led_register+0x17e/0x2f0 [] snd_ctl_dev_register+0x78/0xb0 [] snd_device_register_all+0x7b/0xd0 [] snd_card_register+0x90/0x2b0 [] usb_audio_probe+0x564/0x1280 [] usb_probe_interface+0x177/0x370 [] really_probe+0x159/0x500 [] driver_probe_device+0x8b/0x100 [] __device_attach_driver+0xf6/0x120 [] bus_for_each_drv+0xb7/0x100 [] __device_attach+0x122/0x260 [] bus_probe_device+0xc6/0xe0 BUG: memory leak unreferenced object 0xffff888113acc800 (size 256): comm "kworker/0:2", pid 3475, jiffies 4294943038 (age 7.300s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 c8 ac 13 81 88 ff ff ................ 08 c8 ac 13 81 88 ff ff c0 63 60 82 ff ff ff ff .........c`..... backtrace: [] device_add+0x85c/0xd70 [] snd_ctl_led_register+0x1af/0x2f0 [] snd_ctl_dev_register+0x78/0xb0 [] snd_device_register_all+0x7b/0xd0 [] snd_card_register+0x90/0x2b0 [] usb_audio_probe+0x564/0x1280 [] usb_probe_interface+0x177/0x370 [] really_probe+0x159/0x500 [] driver_probe_device+0x8b/0x100 [] __device_attach_driver+0xf6/0x120 [] bus_for_each_drv+0xb7/0x100 [] __device_attach+0x122/0x260 [] bus_probe_device+0xc6/0xe0 [] device_add+0x5d5/0xd70 [] usb_set_configuration+0x9d9/0xb90 [] usb_generic_driver_probe+0x8c/0xc0