[ 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 '10.128.0.32' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 52.857794][ T35] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 53.387836][ T35] usb 1-1: New USB device found, idVendor=1604, idProduct=8007, bcdDevice=67.b3 [ 53.397057][ T35] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 53.405160][ T35] usb 1-1: Product: syz [ 53.409384][ T35] usb 1-1: Manufacturer: syz [ 53.413987][ T35] usb 1-1: SerialNumber: syz [ 53.419427][ T35] usb 1-1: config 0 descriptor?? [ 53.669862][ T4837] usb 1-1: USB disconnect, device number 2 executing program [ 59.167610][ T35] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 59.697645][ T35] usb 1-1: New USB device found, idVendor=1604, idProduct=8007, bcdDevice=67.b3 [ 59.714532][ T35] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 59.722963][ T35] usb 1-1: Product: syz [ 59.727102][ T35] usb 1-1: Manufacturer: syz [ 59.732011][ T35] usb 1-1: SerialNumber: syz [ 59.737141][ T35] usb 1-1: config 0 descriptor?? [ 59.978384][ T4837] usb 1-1: USB disconnect, device number 3 [ 61.030163][ T8391] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888113a0ca00 (size 256): comm "kworker/1:1", pid 35, jiffies 4294942586 (age 13.780s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 ca a0 13 81 88 ff ff ................ 08 ca a0 13 81 88 ff ff a0 5c 60 82 ff ff ff ff .........\`..... 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 [] snd_usX2Y_probe+0x277/0x2f0 [] 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 BUG: memory leak unreferenced object 0xffff888113a0c900 (size 256): comm "kworker/1:1", pid 35, jiffies 4294942586 (age 13.780s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 08 c9 a0 13 81 88 ff ff ................ 08 c9 a0 13 81 88 ff ff a0 5c 60 82 ff ff ff ff .........\`..... 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 [] snd_usX2Y_probe+0x277/0x2f0 [] 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 BUG: memory leak unreferenced object 0xffff888112c771c0 (size 32): comm "kworker/1:1", pid 35, jiffies 4294943217 (age 7.470s) 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 [] snd_usX2Y_probe+0x277/0x2f0 [] 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 [ 67.198015][ T8391] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak)