[  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

syzkaller login: [   30.807942][ T8367] sshd (8367) used greatest stack depth: 11520 bytes left
Warning: Permanently added '10.128.0.138' (ECDSA) to the list of known hosts.
executing program
[   56.386794][ T4878] usb 1-1: new high-speed USB device number 2 using dummy_hcd
[   56.746803][ T4878] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
[   56.757684][ T4878] usb 1-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.40
[   56.766805][ T4878] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   56.776327][ T4878] usb 1-1: config 0 descriptor??
[   57.116686][ T4878] usbhid 1-1:0.0: can't add hid device: -71
[   57.122696][ T4878] usbhid: probe of 1-1:0.0 failed with error -71
[   57.129523][ T4878] usb 1-1: USB disconnect, device number 2
executing program
[   62.496450][ T4878] usb 1-1: new high-speed USB device number 3 using dummy_hcd
[   62.856514][ T4878] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
[   62.868135][ T4878] usb 1-1: New USB device found, idVendor=0926, idProduct=3333, bcdDevice= 0.40
[   62.878049][ T4878] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[   62.889171][ T4878] usb 1-1: config 0 descriptor??
[   63.236571][ T4878] usbhid 1-1:0.0: can't add hid device: -71
[   63.246182][ T4878] usbhid: probe of 1-1:0.0 failed with error -71
[   63.257186][ T4878] usb 1-1: USB disconnect, device number 3
[   64.195087][ T8446] kmemleak: 4 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
[   70.329828][ T8446] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak)
BUG: memory leak
unreferenced object 0xffff88810eabe100 (size 32):
  comm "softirq", pid 0, jiffies 4294942911 (age 13.980s)
  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:
    [<000000007e1fdb11>] gadget_setup+0xf6/0x220
    [<00000000a1a4a996>] dummy_timer+0xb9f/0x14c0
    [<000000005c20e83f>] call_timer_fn+0x38/0x200
    [<00000000a45fcea1>] __run_timers.part.0+0x319/0x400
    [<000000004d126026>] run_timer_softirq+0x3d/0x80
    [<00000000e8699a91>] __do_softirq+0xcc/0x2c2
    [<0000000093ad04c9>] asm_call_irq_on_stack+0xf/0x20
    [<000000000dc94ef4>] do_softirq_own_stack+0x32/0x40
    [<000000009b335f8f>] irq_exit_rcu+0x91/0xc0
    [<000000002aac877d>] sysvec_apic_timer_interrupt+0x36/0x80
    [<000000009bcda61c>] asm_sysvec_apic_timer_interrupt+0x12/0x20
    [<00000000e58ebdd6>] acpi_idle_do_entry+0xc3/0xd0
    [<00000000dd7bee2d>] acpi_idle_enter+0x128/0x1f0
    [<00000000543ed0f3>] cpuidle_enter_state+0xc9/0x650
    [<000000007bd0ffa8>] cpuidle_enter+0x29/0x40
    [<0000000019ed3aa3>] do_idle+0x1c8/0x250

BUG: memory leak
unreferenced object 0xffff888110910b20 (size 32):
  comm "softirq", pid 0, jiffies 4294942939 (age 13.700s)
  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:
    [<000000007e1fdb11>] gadget_setup+0xf6/0x220
    [<00000000a1a4a996>] dummy_timer+0xb9f/0x14c0
    [<000000005c20e83f>] call_timer_fn+0x38/0x200
    [<00000000a45fcea1>] __run_timers.part.0+0x319/0x400
    [<000000004d126026>] run_timer_softirq+0x3d/0x80
    [<00000000e8699a91>] __do_softirq+0xcc/0x2c2
    [<0000000093ad04c9>] asm_call_irq_on_stack+0xf/0x20
    [<000000000dc94ef4>] do_softirq_own_stack+0x32/0x40
    [<000000009b335f8f>] irq_exit_rcu+0x91/0xc0
    [<000000002aac877d>] sysvec_apic_timer_interrupt+0x36/0x80
    [<000000009bcda61c>] asm_sysvec_apic_timer_interrupt+0x12/0x20
    [<00000000e58ebdd6>] acpi_idle_do_entry+0xc3/0xd0
    [<00000000dd7bee2d>] acpi_idle_enter+0x128/0x1f0
    [<00000000543ed0f3>] cpuidle_enter_state+0xc9/0x650
    [<000000007bd0ffa8>] cpuidle_enter+0x29/0x40
    [<0000000019ed3aa3>] do_idle+0x1c8/0x250

BUG: memory leak
unreferenced object 0xffff888110910aa0 (size 32):
  comm "softirq", pid 0, jiffies 4294942943 (age 13.660s)
  hex dump (first 32 bytes):
    02 00 00 00 08 00 00 00 80 06 00 02 00 00 24 00  ..............$.
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<000000007e1fdb11>] gadget_setup+0xf6/0x220
    [<00000000a1a4a996>] dummy_timer+0xb9f/0x14c0
    [<000000005c20e83f>] call_timer_fn+0x38/0x200
    [<00000000a45fcea1>] __run_timers.part.0+0x319/0x400
    [<000000004d126026>] run_timer_softirq+0x3d/0x80
    [<00000000e8699a91>] __do_softirq+0xcc/0x2c2
    [<0000000093ad04c9>] asm_call_irq_on_stack+0xf/0x20
    [<000000000dc94ef4>] do_softirq_own_stack+0x32/0x40
    [<000000009b335f8f>] irq_exit_rcu+0x91/0xc0
    [<000000002aac877d>] sysvec_apic_timer_interrupt+0x36/0x80
    [<000000009bcda61c>] asm_sysvec_apic_timer_interrupt+0x12/0x20
    [<00000000e58ebdd6>] acpi_idle_do_entry+0xc3/0xd0
    [<00000000dd7bee2d>] acpi_idle_enter+0x128/0x1f0
    [<00000000543ed0f3>] cpuidle_enter_state+0xc9/0x650
    [<000000007bd0ffa8>] cpuidle_enter+0x29/0x40
    [<0000000019ed3aa3>] do_idle+0x1c8/0x250