[ 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 '10.128.10.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.473818][ T35] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 49.713780][ T35] usb 1-1: Using ep0 maxpacket: 16 [ 49.833859][ T35] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x81 has invalid maxpacket 32 [ 49.844095][ T35] usb 1-1: New USB device found, idVendor=04d8, idProduct=0a30, bcdDevice=ac.31 [ 49.853124][ T35] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 49.862123][ T35] usb 1-1: config 0 descriptor?? [ 49.884059][ T8437] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 49.907053][ T35] mcba_usb 1-1:0.0 can0: failed tx_urb -2 [ 49.912796][ T35] mcba_usb 1-1:0.0 can0: Failed to send cmd (169) [ 49.928096][ T35] mcba_usb 1-1:0.0 can0: failed tx_urb -2 [ 49.938171][ T35] mcba_usb 1-1:0.0 can0: Failed to send cmd (169) [ 49.944889][ T35] mcba_usb 1-1:0.0: Microchip CAN BUS Analyzer connected [ 50.104549][ T4901] usb 1-1: USB disconnect, device number 2 [ 50.110511][ T4901] mcba_usb 1-1:0.0 can0: device disconnected [ 55.932605][ T8436] kmemleak: 19 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881106e2400 (size 64): comm "kworker/1:1", pid 35, jiffies 4294942262 (age 8.090s) 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: [<000000006552caad>] hcd_buffer_alloc+0x149/0x190 [<0000000080bac034>] usb_alloc_coherent+0x42/0x60 [<000000008b1095db>] mcba_usb_probe+0x27b/0x430 [<000000003bf0c5c9>] usb_probe_interface+0x177/0x370 [<00000000a126bf0c>] really_probe+0x159/0x480 [<00000000e5976c50>] driver_probe_device+0x84/0x100 [<0000000072bf20db>] __device_attach_driver+0xee/0x110 [<0000000064a4ca7a>] bus_for_each_drv+0xb7/0x100 [<00000000702e5588>] __device_attach+0x122/0x250 [<00000000e116e79e>] bus_probe_device+0xc6/0xe0 [<00000000165a7b74>] device_add+0x5be/0xc30 [<000000000dd937a3>] usb_set_configuration+0x9d9/0xb90 [<00000000e54c6453>] usb_generic_driver_probe+0x8c/0xc0 [<000000008af7953f>] usb_probe_device+0x5c/0x140 [<00000000a126bf0c>] really_probe+0x159/0x480 [<00000000e5976c50>] driver_probe_device+0x84/0x100 BUG: memory leak unreferenced object 0xffff8881106e2440 (size 64): comm "kworker/1:1", pid 35, jiffies 4294942262 (age 8.090s) 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: [<000000006552caad>] hcd_buffer_alloc+0x149/0x190 [<0000000080bac034>] usb_alloc_coherent+0x42/0x60 [<000000008b1095db>] mcba_usb_probe+0x27b/0x430 [<000000003bf0c5c9>] usb_probe_interface+0x177/0x370 [<00000000a126bf0c>] really_probe+0x159/0x480 [<00000000e5976c50>] driver_probe_device+0x84/0x100 [<0000000072bf20db>] __device_attach_driver+0xee/0x110 [<0000000064a4ca7a>] bus_for_each_drv+0xb7/0x100 [<00000000702e5588>] __device_attach+0x122/0x250 [<00000000e116e79e>] bus_probe_device+0xc6/0xe0 [<00000000165a7b74>] device_add+0x5be/0xc30 [<000000000dd937a3>] usb_set_configuration+0x9d9/0xb90 [<00000000e54c6453>] usb_generic_driver_probe+0x8c/0xc0 [<000000008af7953f>] usb_probe_device+0x5c/0x140 [<00000000a126bf0c>] really_probe+0x159/0x480 [<00000000e5976c50>] driver_probe_device+0x84/0x100 BUG: memory leak unreferenced object 0xffff888110939040 (size 64): comm "kworker/1:1", pid 35, jiffies 4294942262 (age 8.090s) 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: [<000000006552caad>] hcd_buffer_alloc+0x149/0x190 [<0000000080bac034>] usb_alloc_coherent+0x42/0x60 [<000000008b1095db>] mcba_usb_probe+0x27b/0x430 [<000000003bf0c5c9>] usb_probe_interface+0x177/0x370 [<00000000a126bf0c>] really_probe+0x159/0x480 [<00000000e5976c50>] driver_probe_device+0x84/0x100 [<0000000072bf20db>] __device_attach_driver+0xee/0x110 [<0000000064a4ca7a>] bus_for_each_drv+0xb7/0x100 [<00000000702e5588>] __device_attach+0x122/0x250 [<00000000e116e79e>] bus_probe_device+0xc6/0xe0 [<00000000165a7b74>] device_add+0x5be/0xc30 [<000000000dd937a3>] usb_set_configuration+0x9d9/0xb90 [<00000000e54c6453>] usb_generic_driver_probe+0x8c/0xc0 [<000000008af7953f>] usb_probe_device+0x5c/0x140 [<00000000a126bf0c>] really_probe+0x159/0x480 [<00000000e5976c50>] driver_probe_device+0x84/0x100