[ 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 '10.128.0.49' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 48.487656][ T3772] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 48.677563][ T3772] usb 1-1: device descriptor read/64, error 18 [ 48.947538][ T3772] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 49.137538][ T3772] usb 1-1: device descriptor read/64, error 18 [ 49.257598][ T3772] usb usb1-port1: attempt power cycle [ 49.967482][ T3772] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 50.067572][ T3772] usb 1-1: Invalid ep0 maxpacket: 239 [ 50.217439][ T3772] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 50.307475][ T3772] usb 1-1: Invalid ep0 maxpacket: 239 [ 50.313962][ T3772] usb usb1-port1: unable to enumerate USB device [ 59.065151][ T8489] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888110c44ec0 (size 32): comm "softirq", pid 0, jiffies 4294942166 (age 12.140s) hex dump (first 32 bytes): 02 00 00 00 08 00 00 00 80 06 00 01 00 00 40 00 ..............@. 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000000c395e99>] gadget_setup+0xf6/0x220 [<000000003ae8eadd>] dummy_timer+0xb9f/0x14c0 [<0000000050740abd>] call_timer_fn+0x38/0x200 [<00000000efb6bfbb>] __run_timers.part.0+0x319/0x400 [<000000004c90dcd0>] run_timer_softirq+0x3d/0x80 [<0000000087cf0efa>] __do_softirq+0xcc/0x2c2 [<0000000079b710a0>] asm_call_irq_on_stack+0xf/0x20 [<000000003987edb6>] do_softirq_own_stack+0x32/0x40 [<000000009edacf6b>] irq_exit_rcu+0x91/0xc0 [<000000001f41e5ef>] sysvec_apic_timer_interrupt+0x36/0x80 [<0000000063672eb3>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000307f5507>] acpi_idle_do_entry+0xc3/0xd0 [<0000000068f1211b>] acpi_idle_enter+0x128/0x1f0 [<00000000079815b5>] cpuidle_enter_state+0xc9/0x650 [<0000000039e5745f>] cpuidle_enter+0x29/0x40 [<0000000000999334>] do_idle+0x1c8/0x250 BUG: memory leak unreferenced object 0xffff8881107ceac0 (size 32): comm "softirq", pid 0, jiffies 4294942274 (age 11.060s) hex dump (first 32 bytes): 02 00 00 00 08 00 00 00 80 06 00 01 00 00 08 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000000c395e99>] gadget_setup+0xf6/0x220 [<000000003ae8eadd>] dummy_timer+0xb9f/0x14c0 [<0000000050740abd>] call_timer_fn+0x38/0x200 [<00000000efb6bfbb>] __run_timers.part.0+0x319/0x400 [<000000004c90dcd0>] run_timer_softirq+0x3d/0x80 [<0000000087cf0efa>] __do_softirq+0xcc/0x2c2 [<0000000079b710a0>] asm_call_irq_on_stack+0xf/0x20 [<000000003987edb6>] do_softirq_own_stack+0x32/0x40 [<000000009edacf6b>] irq_exit_rcu+0x91/0xc0 [<000000001f41e5ef>] sysvec_apic_timer_interrupt+0x36/0x80 [<0000000063672eb3>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000307f5507>] acpi_idle_do_entry+0xc3/0xd0 [<0000000068f1211b>] acpi_idle_enter+0x128/0x1f0 [<00000000079815b5>] cpuidle_enter_state+0xc9/0x650 [<0000000039e5745f>] cpuidle_enter+0x29/0x40 [<0000000000999334>] do_idle+0x1c8/0x250 BUG: memory leak unreferenced object 0xffff8881107ceb00 (size 32): comm "softirq", pid 0, jiffies 4294942298 (age 10.820s) hex dump (first 32 bytes): 02 00 00 00 08 00 00 00 80 06 00 01 00 00 08 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<000000000c395e99>] gadget_setup+0xf6/0x220 [<000000003ae8eadd>] dummy_timer+0xb9f/0x14c0 [<0000000050740abd>] call_timer_fn+0x38/0x200 [<00000000efb6bfbb>] __run_timers.part.0+0x319/0x400 [<000000004c90dcd0>] run_timer_softirq+0x3d/0x80 [<0000000087cf0efa>] __do_softirq+0xcc/0x2c2 [<0000000079b710a0>] asm_call_irq_on_stack+0xf/0x20 [<000000003987edb6>] do_softirq_own_stack+0x32/0x40 [<000000009edacf6b>] irq_exit_rcu+0x91/0xc0 [<000000001f41e5ef>] sysvec_apic_timer_interrupt+0x36/0x80 [<0000000063672eb3>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000307f5507>] acpi_idle_do_entry+0xc3/0xd0 [<0000000068f1211b>] acpi_idle_enter+0x128/0x1f0 [<00000000079815b5>] cpuidle_enter_state+0xc9/0x650 [<0000000039e5745f>] cpuidle_enter+0x29/0x40 [<0000000000999334>] do_idle+0x1c8/0x250