[ 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 '10.128.1.48' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.759284][ T8468] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 50.029198][ T8468] usb 1-1: device descriptor read/64, error 18 [ 50.419087][ T8468] usb 1-1: device descriptor read/64, error 18 [ 50.699015][ T8468] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 50.968934][ T8468] usb 1-1: device descriptor read/64, error 18 [ 51.368817][ T8468] usb 1-1: device descriptor read/64, error 18 [ 51.488906][ T8468] usb usb1-port1: attempt power cycle [ 52.198596][ T8468] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 52.368706][ T8468] usb 1-1: device descriptor read/8, error -61 [ 52.638616][ T8468] usb 1-1: device descriptor read/8, error -61 [ 52.908436][ T8468] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 53.078418][ T8468] usb 1-1: device descriptor read/8, error -61 [ 53.348415][ T8468] usb 1-1: device descriptor read/8, error -61 [ 53.468334][ T8468] usb usb1-port1: unable to enumerate USB device [ 59.630265][ T8492] kmemleak: 24 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810aabc020 (size 32): comm "syz-executor935", pid 8493, jiffies 4294942200 (age 12.370s) 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: [<00000000c906c028>] gadget_bind+0x223/0x340 [<000000003f2af569>] udc_bind_to_driver+0x62/0x150 [<00000000b9179544>] usb_gadget_probe_driver+0x1c7/0x230 [<00000000c0134bc8>] raw_ioctl+0x5da/0xf30 [<00000000d6be1738>] __x64_sys_ioctl+0xfc/0x140 [<00000000112e6ab3>] do_syscall_64+0x2d/0x70 [<00000000a7a452f8>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88810bc20780 (size 32): comm "softirq", pid 0, jiffies 4294942233 (age 12.040s) 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: [<000000009ac8f699>] gadget_setup+0xf6/0x220 [<00000000a4df5bf7>] dummy_timer+0xb9f/0x14c0 [<000000007e47a994>] call_timer_fn+0x38/0x200 [<000000001216df29>] __run_timers.part.0+0x319/0x400 [<00000000890987ea>] run_timer_softirq+0x3d/0x80 [<000000002b383fe2>] __do_softirq+0xcc/0x2c2 [<0000000001d6a9d6>] asm_call_irq_on_stack+0xf/0x20 [<00000000b728f4ec>] do_softirq_own_stack+0x32/0x40 [<00000000e959d21c>] irq_exit_rcu+0x91/0xc0 [<00000000e4dfb234>] sysvec_apic_timer_interrupt+0x36/0x80 [<000000003cd78059>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000190c025f>] acpi_idle_do_entry+0xc3/0xd0 [<00000000b5dacb90>] acpi_idle_enter+0x128/0x1f0 [<0000000041f9fc48>] cpuidle_enter_state+0xc9/0x650 [<0000000017533337>] cpuidle_enter+0x29/0x40 [<000000002fac2569>] do_idle+0x1c8/0x250 BUG: memory leak unreferenced object 0xffff8881104e8c60 (size 32): comm "softirq", pid 0, jiffies 4294942237 (age 12.000s) 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: [<000000009ac8f699>] gadget_setup+0xf6/0x220 [<00000000a4df5bf7>] dummy_timer+0xb9f/0x14c0 [<000000007e47a994>] call_timer_fn+0x38/0x200 [<000000001216df29>] __run_timers.part.0+0x319/0x400 [<00000000890987ea>] run_timer_softirq+0x3d/0x80 [<000000002b383fe2>] __do_softirq+0xcc/0x2c2 [<0000000001d6a9d6>] asm_call_irq_on_stack+0xf/0x20 [<00000000b728f4ec>] do_softirq_own_stack+0x32/0x40 [<00000000e959d21c>] irq_exit_rcu+0x91/0xc0 [<00000000e4dfb234>] sysvec_apic_timer_interrupt+0x36/0x80 [<000000003cd78059>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000190c025f>] acpi_idle_do_entry+0xc3/0xd0 [<00000000b5dacb90>] acpi_idle_enter+0x128/0x1f0 [<0000000041f9fc48>] cpuidle_enter_state+0xc9/0x650 [<0000000017533337>] cpuidle_enter+0x29/0x40 [<000000002fac2569>] do_idle+0x1c8/0x250