[ 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 '10.128.0.51' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 73.834790][ T4594] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 74.074782][ T4594] usb 1-1: Using ep0 maxpacket: 32 [ 74.194859][ T4594] usb 1-1: too many endpoints for config 0 interface 0 altsetting 0: 132, using maximum allowed: 30 [ 74.205665][ T4594] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 74.216993][ T4594] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 74.226956][ T4594] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 132 [ 74.240222][ T4594] usb 1-1: New USB device found, idVendor=056a, idProduct=0033, bcdDevice= 0.00 [ 74.249572][ T4594] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 74.258474][ T4594] usb 1-1: config 0 descriptor?? [ 74.736613][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.745816][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.752674][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.759749][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.766779][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.773635][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.780719][ T4594] wacom 0003:056A:0033.0001: unknown main item tag 0x0 [ 74.788296][ T4594] wacom: probe of 0003:056A:0033.0001 failed with error -22 [ 74.935399][ T3686] usb 1-1: USB disconnect, device number 2 executing program [ 80.424157][ T4594] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 80.664113][ T4594] usb 1-1: Using ep0 maxpacket: 32 [ 80.794148][ T4594] usb 1-1: too many endpoints for config 0 interface 0 altsetting 0: 132, using maximum allowed: 30 [ 80.805085][ T4594] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7 [ 80.816668][ T4594] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0 [ 80.827368][ T4594] usb 1-1: config 0 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 132 [ 80.840613][ T4594] usb 1-1: New USB device found, idVendor=056a, idProduct=0033, bcdDevice= 0.00 [ 80.849852][ T4594] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 80.860272][ T4594] usb 1-1: config 0 descriptor?? [ 81.344671][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.351591][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.358784][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.365789][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.372908][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.379795][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.386798][ T4594] wacom 0003:056A:0033.0002: unknown main item tag 0x0 [ 81.393749][ T4594] wacom: probe of 0003:056A:0033.0002 failed with error -22 [ 81.544778][ T3686] usb 1-1: USB disconnect, device number 3 [ 82.642505][ T8443] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 88.828469][ T8443] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888103bc8a00 (size 512): comm "kworker/1:2", pid 4594, jiffies 4294944736 (age 14.160s) 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: [<00000000d64293ca>] __kfifo_alloc+0xad/0x100 [<000000009fe79599>] wacom_probe+0x1a1/0x3b0 [<0000000051c850f5>] hid_device_probe+0x16b/0x210 [<0000000002a409cc>] really_probe+0x159/0x480 [<00000000ca255400>] driver_probe_device+0x84/0x100 [<000000009ea0a7d7>] __device_attach_driver+0xee/0x110 [<0000000030db56a2>] bus_for_each_drv+0xb7/0x100 [<000000008862ce5e>] __device_attach+0x122/0x250 [<000000008a003fc6>] bus_probe_device+0xc6/0xe0 [<000000004d29637e>] device_add+0x5ac/0xc30 [<000000007717247c>] hid_add_device+0x151/0x390 [<00000000122ed062>] usbhid_probe+0x412/0x560 [<00000000b94eaf19>] usb_probe_interface+0x177/0x370 [<0000000002a409cc>] really_probe+0x159/0x480 [<00000000ca255400>] driver_probe_device+0x84/0x100 [<000000009ea0a7d7>] __device_attach_driver+0xee/0x110 BUG: memory leak unreferenced object 0xffff88810de49a00 (size 512): comm "kworker/1:2", pid 4594, jiffies 4294945397 (age 7.550s) 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: [<00000000d64293ca>] __kfifo_alloc+0xad/0x100 [<000000009fe79599>] wacom_probe+0x1a1/0x3b0 [<0000000051c850f5>] hid_device_probe+0x16b/0x210 [<0000000002a409cc>] really_probe+0x159/0x480 [<00000000ca255400>] driver_probe_device+0x84/0x100 [<000000009ea0a7d7>] __device_attach_driver+0xee/0x110 [<0000000030db56a2>] bus_for_each_drv+0xb7/0x100 [<000000008862ce5e>] __device_attach+0x122/0x250 [<000000008a003fc6>] bus_probe_device+0xc6/0xe0 [<000000004d29637e>] device_add+0x5ac/0xc30 [<000000007717247c>] hid_add_device+0x151/0x390 [<00000000122ed062>] usbhid_probe+0x412/0x560 [<00000000b94eaf19>] usb_probe_interface+0x177/0x370 [<0000000002a409cc>] really_probe+0x159/0x480 [<00000000ca255400>] driver_probe_device+0x84/0x100 [<000000009ea0a7d7>] __device_attach_driver+0xee/0x110