[ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Found device /dev/ttyS0. [ OK ] Started Serial Getty on ttyS0. [ 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 '10.128.0.65' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.811377][ T19] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 45.051332][ T19] usb 1-1: Using ep0 maxpacket: 16 [ 45.171328][ T19] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 32 [ 45.181229][ T19] usb 1-1: New USB device found, idVendor=04d8, idProduct=0a30, bcdDevice=ac.31 [ 45.190395][ T19] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.198964][ T19] usb 1-1: config 0 descriptor?? [ 45.221556][ T8440] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 45.252470][ T19] mcba_usb 1-1:0.0 can0: failed tx_urb -2 [ 45.258373][ T19] mcba_usb 1-1:0.0 can0: Failed to send cmd (169) [ 45.270467][ T19] mcba_usb 1-1:0.0 can0: failed tx_urb -2 [ 45.277705][ T19] mcba_usb 1-1:0.0 can0: Failed to send cmd (169) [ 45.285093][ T19] mcba_usb 1-1:0.0: Microchip CAN BUS Analyzer connected [ 45.470614][ T19] usb 1-1: USB disconnect, device number 2 [ 45.491325][ T19] mcba_usb 1-1:0.0 can0: device disconnected [ 51.337949][ T8436] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811303f540 (size 64): comm "kworker/1:0", pid 19, jiffies 4294941790 (age 8.140s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000453b3dee>] hcd_buffer_alloc+0x149/0x190 [<00000000ae7d5652>] usb_alloc_coherent+0x42/0x60 [<0000000029426d80>] mcba_usb_probe+0x27b/0x430 [<00000000aadac5e8>] usb_probe_interface+0x177/0x370 [<000000001b8002b8>] really_probe+0x159/0x4a0 [<000000008d034316>] driver_probe_device+0x84/0x100 [<00000000db239c2b>] __device_attach_driver+0xee/0x110 [<00000000f7aca37e>] bus_for_each_drv+0xb7/0x100 [<0000000054f0934f>] __device_attach+0x122/0x250 [<00000000d71e99cb>] bus_probe_device+0xc6/0xe0 [<00000000fddd2045>] device_add+0x5be/0xc30 [<00000000f0465c38>] usb_set_configuration+0x9d9/0xb90 [<00000000567d2217>] usb_generic_driver_probe+0x8c/0xc0 [<00000000646d40cc>] usb_probe_device+0x5c/0x140 [<000000001b8002b8>] really_probe+0x159/0x4a0 [<000000008d034316>] driver_probe_device+0x84/0x100 BUG: memory leak unreferenced object 0xffff88811303f240 (size 64): comm "kworker/1:0", pid 19, jiffies 4294941790 (age 8.140s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000453b3dee>] hcd_buffer_alloc+0x149/0x190 [<00000000ae7d5652>] usb_alloc_coherent+0x42/0x60 [<0000000029426d80>] mcba_usb_probe+0x27b/0x430 [<00000000aadac5e8>] usb_probe_interface+0x177/0x370 [<000000001b8002b8>] really_probe+0x159/0x4a0 [<000000008d034316>] driver_probe_device+0x84/0x100 [<00000000db239c2b>] __device_attach_driver+0xee/0x110 [<00000000f7aca37e>] bus_for_each_drv+0xb7/0x100 [<0000000054f0934f>] __device_attach+0x122/0x250 [<00000000d71e99cb>] bus_probe_device+0xc6/0xe0 [<00000000fddd2045>] device_add+0x5be/0xc30 [<00000000f0465c38>] usb_set_configuration+0x9d9/0xb90 [<00000000567d2217>] usb_generic_driver_probe+0x8c/0xc0 [<00000000646d40cc>] usb_probe_device+0x5c/0x140 [<000000001b8002b8>] really_probe+0x159/0x4a0 [<000000008d034316>] driver_probe_device+0x84/0x100 BUG: memory leak unreferenced object 0xffff88810d1547c0 (size 64): comm "kworker/1:0", pid 19, jiffies 4294941790 (age 8.140s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000453b3dee>] hcd_buffer_alloc+0x149/0x190 [<00000000ae7d5652>] usb_alloc_coherent+0x42/0x60 [<0000000029426d80>] mcba_usb_probe+0x27b/0x430 [<00000000aadac5e8>] usb_probe_interface+0x177/0x370 [<000000001b8002b8>] really_probe+0x159/0x4a0 [<000000008d034316>] driver_probe_device+0x84/0x100 [<00000000db239c2b>] __device_attach_driver+0xee/0x110 [<00000000f7aca37e>] bus_for_each_drv+0xb7/0x100 [<0000000054f0934f>] __device_attach+0x122/0x250 [<00000000d71e99cb>] bus_probe_device+0xc6/0xe0 [<00000000fddd2045>] device_add+0x5be/0xc30 [<00000000f0465c38>] usb_set_configuration+0x9d9/0xb90 [<00000000567d2217>] usb_generic_driver_probe+0x8c/0xc0 [<00000000646d40cc>] usb_probe_device+0x5c/0x140 [<000000001b8002b8>] really_probe+0x159/0x4a0 [<000000008d034316>] driver_probe_device+0x84/0x100