[ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started System Logging Service. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.242' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 146.361674][ T27] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 146.601734][ T27] usb 1-1: Using ep0 maxpacket: 8 [ 146.721925][ T27] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x82 has invalid maxpacket 247 [ 146.732101][ T27] usb 1-1: config 1 interface 0 altsetting 0 bulk endpoint 0x3 has invalid maxpacket 52 [ 146.742158][ T27] usb 1-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 3 [ 146.911899][ T27] usb 1-1: New USB device found, idVendor=0424, idProduct=9e00, bcdDevice= 0.40 [ 146.920995][ T27] usb 1-1: New USB device strings: Mfr=1, Product=8, SerialNumber=3 [ 146.929216][ T27] usb 1-1: Product: syz [ 146.933648][ T27] usb 1-1: Manufacturer: syz [ 146.938413][ T27] usb 1-1: SerialNumber: syz [ 146.964968][ T8480] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 146.975125][ T8480] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 147.003960][ T27] smsc95xx v1.0.6 [ 147.203513][ T8480] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 147.210569][ T8480] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 147.461872][ T27] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Failed to read reg index 0x00000030: -32 [ 147.472674][ T27] smsc95xx 1-1:1.0 (unnamed net_device) (uninitialized): Error reading E2P_CMD [ 147.731823][ T27] ===================================================== [ 147.738784][ T27] BUG: KMSAN: uninit-value in smsc95xx_reset+0x353/0x3eb0 [ 147.745879][ T27] CPU: 1 PID: 27 Comm: kworker/1:1 Not tainted 5.8.0-rc5-syzkaller #0 [ 147.754034][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 147.764078][ T27] Workqueue: usb_hub_wq hub_event [ 147.769110][ T27] Call Trace: [ 147.772388][ T27] dump_stack+0x21c/0x280 [ 147.776726][ T27] kmsan_report+0xf7/0x1e0 [ 147.781137][ T27] __msan_warning+0x58/0xa0 [ 147.785644][ T27] smsc95xx_reset+0x353/0x3eb0 [ 147.790426][ T27] smsc95xx_bind+0x8b3/0x1720 [ 147.795098][ T27] ? kmsan_memcpy_memmove_metadata+0x10c/0x2e0 [ 147.801259][ T27] ? smsc95xx_mdio_write+0xcd0/0xcd0 [ 147.806531][ T27] usbnet_probe+0x1152/0x3f90 [ 147.811204][ T27] ? kmsan_get_metadata+0x116/0x180 [ 147.816400][ T27] ? kmsan_get_metadata+0x116/0x180 [ 147.821602][ T27] ? kmsan_set_origin_checked+0x95/0xf0 [ 147.827134][ T27] ? kmsan_internal_unpoison_shadow+0x2f/0x40 [ 147.833199][ T27] ? usbnet_disconnect+0x670/0x670 [ 147.838295][ T27] usb_probe_interface+0xece/0x1550 [ 147.843496][ T27] ? usb_register_driver+0x900/0x900 [ 147.848767][ T27] really_probe+0xf20/0x20b0 [ 147.853357][ T27] ? kmsan_get_metadata+0x116/0x180 [ 147.858556][ T27] driver_probe_device+0x293/0x390 [ 147.863671][ T27] __device_attach_driver+0x63f/0x830 [ 147.869037][ T27] bus_for_each_drv+0x2ca/0x3f0 [ 147.873894][ T27] ? coredump_store+0xf0/0xf0 [ 147.878561][ T27] __device_attach+0x4e2/0x7f0 [ 147.883338][ T27] device_initial_probe+0x4a/0x60 [ 147.888351][ T27] bus_probe_device+0x177/0x3d0 [ 147.893209][ T27] ? kmsan_get_shadow_origin_ptr+0x81/0xb0 [ 147.899016][ T27] device_add+0x3b0e/0x40d0 [ 147.903547][ T27] usb_set_configuration+0x380f/0x3f10 [ 147.908998][ T27] ? usb_set_configuration+0xb41/0x3f10 [ 147.914561][ T27] usb_generic_driver_probe+0x138/0x300 [ 147.920102][ T27] ? usb_choose_configuration+0xe70/0xe70 [ 147.925818][ T27] usb_probe_device+0x311/0x490 [ 147.930683][ T27]