[ 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 '10.128.0.115' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 56.144447][ T3209] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 56.384458][ T3209] usb 1-1: Using ep0 maxpacket: 16 [ 56.504500][ T3209] usb 1-1: config 1 contains an unexpected descriptor of type 0x2, skipping [ 56.514510][ T3209] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 56.526935][ T3209] usb 1-1: config 1 has 2 interfaces, different from the descriptor's value: 3 [ 56.537146][ T3209] usb 1-1: config 1 has no interface number 1 [ 56.544584][ T3209] usb 1-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 0 [ 56.558665][ T3209] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x2 has an invalid bInterval 0, changing to 7 [ 56.724631][ T3209] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 [ 56.738327][ T3209] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 56.746749][ T3209] usb 1-1: Product: syz [ 56.751297][ T3209] usb 1-1: Manufacturer: syz [ 56.756744][ T3209] usb 1-1: SerialNumber: syz [ 57.074429][ T3209] usb 1-1: 2:1 : no or invalid class specific endpoint descriptor [ 57.084727][ T3209] usb 1-1: 2:1 : format type 0 is detected, processed as PCM [ 57.147815][ T3209] usb 1-1: USB disconnect, device number 2 executing program [ 62.514115][ T7] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 62.764223][ T7] usb 1-1: Using ep0 maxpacket: 16 [ 62.884175][ T7] usb 1-1: config 1 contains an unexpected descriptor of type 0x2, skipping [ 62.892870][ T7] usb 1-1: config 1 has an invalid descriptor of length 0, skipping remainder of the config [ 62.903409][ T7] usb 1-1: config 1 has 2 interfaces, different from the descriptor's value: 3 [ 62.912642][ T7] usb 1-1: config 1 has no interface number 1 [ 62.919072][ T7] usb 1-1: config 1 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 0 [ 62.932105][ T7] usb 1-1: config 1 interface 2 altsetting 1 endpoint 0x2 has an invalid bInterval 0, changing to 7 [ 63.094153][ T7] usb 1-1: New USB device found, idVendor=1d6b, idProduct=0101, bcdDevice= 0.40 [ 63.103353][ T7] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 63.111350][ T7] usb 1-1: Product: syz [ 63.115650][ T7] usb 1-1: Manufacturer: syz [ 63.120267][ T7] usb 1-1: SerialNumber: syz [ 63.464149][ T7] usb 1-1: 2:1 : no or invalid class specific endpoint descriptor [ 63.471997][ T7] usb 1-1: 2:1 : format type 0 is detected, processed as PCM [ 63.540045][ T7] usb 1-1: USB disconnect, device number 3 [ 64.442566][ T8388] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888110cf77e0 (size 32): comm "kworker/1:2", pid 3209, jiffies 4294942977 (age 13.460s) 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 0xffff88810e555780 (size 32): comm "kworker/1:2", pid 3209, jiffies 4294942977 (age 13.460s) 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 0xffff888113a2f9a0 (size 32): comm "kworker/0:1", pid 7, jiffies 4294943616 (age 7.070s) 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 [ 70.547690][ T8388] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)