[ 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 '10.128.0.255' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 44.437376][ T8237] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 44.807351][ T8237] usb 1-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 0 [ 44.977331][ T8237] usb 1-1: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 0.40 [ 44.987437][ T8237] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 44.995441][ T8237] usb 1-1: Product: syz [ 45.000126][ T8237] usb 1-1: Manufacturer: syz [ 45.004711][ T8237] usb 1-1: SerialNumber: syz [ 45.047570][ T8237] cdc_ether: probe of 1-1:1.0 failed with error -22 [ 45.255906][ T8237] usb 1-1: USB disconnect, device number 2 executing program [ 51.416305][ T8237] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 51.776354][ T8237] usb 1-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 0 [ 51.946348][ T8237] usb 1-1: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 0.40 [ 51.955367][ T8237] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 51.963588][ T8237] usb 1-1: Product: syz [ 51.967818][ T8237] usb 1-1: Manufacturer: syz [ 51.972422][ T8237] usb 1-1: SerialNumber: syz [ 52.016659][ T8237] cdc_ether: probe of 1-1:1.0 failed with error -22 [ 52.216861][ T3845] usb 1-1: USB disconnect, device number 3 [ 58.009685][ T8479] kmemleak: 14 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810a2a5880 (size 32): comm "syz-executor250", pid 8482, jiffies 4294941685 (age 15.870s) hex dump (first 32 bytes): 01 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: [<00000000c88ab70c>] gadget_bind+0x223/0x340 [<000000009d531744>] udc_bind_to_driver+0x62/0x150 [<00000000342bb515>] usb_gadget_probe_driver+0x1c7/0x230 [<00000000121b9039>] raw_ioctl+0x5da/0xf30 [<0000000078b95712>] __x64_sys_ioctl+0xfc/0x140 [<0000000066edac9a>] do_syscall_64+0x2d/0x70 [<00000000014ce1e5>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888110a786e0 (size 32): comm "softirq", pid 0, jiffies 4294941739 (age 15.330s) hex dump (first 32 bytes): 02 00 00 00 08 00 00 00 80 06 00 01 00 00 12 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000004cd7cf2e>] gadget_setup+0xf6/0x220 [<0000000014147351>] dummy_timer+0xb9f/0x14c0 [<00000000ac408e8e>] call_timer_fn+0x38/0x200 [<0000000021760131>] __run_timers.part.0+0x319/0x400 [<000000002462b767>] run_timer_softirq+0x3d/0x80 [<00000000347a7dd4>] __do_softirq+0xcc/0x2c2 [<00000000596d4cdf>] asm_call_irq_on_stack+0xf/0x20 [<00000000cf907d3e>] do_softirq_own_stack+0x32/0x40 [<000000001a27ed7e>] irq_exit_rcu+0x91/0xc0 [<00000000a6a05fa2>] sysvec_apic_timer_interrupt+0x36/0x80 [<000000007a29580d>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<0000000021c97df3>] acpi_idle_do_entry+0xc3/0xd0 [<000000007789e403>] acpi_idle_enter+0x128/0x1f0 [<000000008b29dc3a>] cpuidle_enter_state+0xc9/0x650 [<0000000013d11d75>] cpuidle_enter+0x29/0x40 [<000000005ff00a68>] do_idle+0x1c8/0x250 BUG: memory leak unreferenced object 0xffff88810cb75f40 (size 32): comm "softirq", pid 0, jiffies 4294941743 (age 15.290s) hex dump (first 32 bytes): 02 00 00 00 08 00 00 00 80 06 00 02 00 00 09 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000004cd7cf2e>] gadget_setup+0xf6/0x220 [<0000000014147351>] dummy_timer+0xb9f/0x14c0 [<00000000ac408e8e>] call_timer_fn+0x38/0x200 [<0000000021760131>] __run_timers.part.0+0x319/0x400 [<000000002462b767>] run_timer_softirq+0x3d/0x80 [<00000000347a7dd4>] __do_softirq+0xcc/0x2c2 [<00000000596d4cdf>] asm_call_irq_on_stack+0xf/0x20 [<00000000cf907d3e>] do_softirq_own_stack+0x32/0x40 [<000000001a27ed7e>] irq_exit_rcu+0x91/0xc0 [<00000000a6a05fa2>] sysvec_apic_timer_interrupt+0x36/0x80 [<000000007a29580d>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<0000000021c97df3>] acpi_idle_do_entry+0xc3/0xd0 [<000000007789e403>] acpi_idle_enter+0x128/0x1f0 [<000000008b29dc3a>] cpuidle_enter_state+0xc9/0x650 [<0000000013d11d75>] cpuidle_enter+0x29/0x40 [<000000005ff00a68>] do_idle+0x1c8/0x250