[ 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 '10.128.0.223' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 55.613250][ T3668] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 55.853177][ T3668] usb 1-1: Invalid ep0 maxpacket: 32 [ 56.003207][ T3668] usb 1-1: new low-speed USB device number 3 using dummy_hcd [ 56.243148][ T3668] usb 1-1: Invalid ep0 maxpacket: 32 [ 56.248503][ T3668] usb usb1-port1: attempt power cycle [ 56.973117][ T3668] usb 1-1: new low-speed USB device number 4 using dummy_hcd [ 57.073181][ T3668] usb 1-1: Invalid ep0 maxpacket: 32 [ 57.223179][ T3668] usb 1-1: new low-speed USB device number 5 using dummy_hcd [ 57.343118][ T3668] usb 1-1: Invalid ep0 maxpacket: 32 [ 57.348507][ T3668] usb usb1-port1: unable to enumerate USB device [ 66.217398][ T8480] kmemleak: 3 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888110ccde00 (size 32): comm "syz-executor937", pid 8481, jiffies 4294942802 (age 12.940s) 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: [<00000000de3b358c>] gadget_bind+0x223/0x340 [<0000000032dfe2a1>] udc_bind_to_driver+0x62/0x150 [<0000000046baba0f>] usb_gadget_probe_driver+0x1c7/0x230 [<0000000092ef0356>] raw_ioctl+0x5da/0xf30 [<0000000024c496b0>] __x64_sys_ioctl+0xfc/0x140 [<00000000279ac226>] do_syscall_64+0x2d/0x70 [<0000000020214ae6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff8881107f6bc0 (size 32): comm "softirq", pid 0, jiffies 4294942870 (age 12.260s) 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: [<00000000bbdee83d>] gadget_setup+0xf6/0x220 [<0000000004d70f18>] dummy_timer+0xb9f/0x14c0 [<0000000096f72f0e>] call_timer_fn+0x38/0x200 [<00000000a0c6bdda>] __run_timers.part.0+0x319/0x400 [<000000001e09fb45>] run_timer_softirq+0x3d/0x80 [<00000000fb0cfb6e>] __do_softirq+0xcc/0x2c2 [<0000000055f39a73>] asm_call_irq_on_stack+0xf/0x20 [<0000000060085015>] do_softirq_own_stack+0x32/0x40 [<000000006d6631c1>] irq_exit_rcu+0x91/0xc0 [<00000000ba09c61b>] sysvec_apic_timer_interrupt+0x36/0x80 [<00000000af7103e9>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000865237f0>] acpi_idle_do_entry+0xc3/0xd0 [<0000000064240479>] acpi_idle_enter+0x128/0x1f0 [<0000000096305960>] cpuidle_enter_state+0xc9/0x650 [<0000000019e3ff48>] cpuidle_enter+0x29/0x40 [<000000006373da00>] do_idle+0x1c8/0x250 BUG: memory leak unreferenced object 0xffff8881107f6c60 (size 32): comm "softirq", pid 0, jiffies 4294942973 (age 11.230s) 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: [<00000000bbdee83d>] gadget_setup+0xf6/0x220 [<0000000004d70f18>] dummy_timer+0xb9f/0x14c0 [<0000000096f72f0e>] call_timer_fn+0x38/0x200 [<00000000a0c6bdda>] __run_timers.part.0+0x319/0x400 [<000000001e09fb45>] run_timer_softirq+0x3d/0x80 [<00000000fb0cfb6e>] __do_softirq+0xcc/0x2c2 [<0000000055f39a73>] asm_call_irq_on_stack+0xf/0x20 [<0000000060085015>] do_softirq_own_stack+0x32/0x40 [<000000006d6631c1>] irq_exit_rcu+0x91/0xc0 [<00000000ba09c61b>] sysvec_apic_timer_interrupt+0x36/0x80 [<00000000af7103e9>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000865237f0>] acpi_idle_do_entry+0xc3/0xd0 [<0000000064240479>] acpi_idle_enter+0x128/0x1f0 [<0000000096305960>] cpuidle_enter_state+0xc9/0x650 [<0000000019e3ff48>] cpuidle_enter+0x29/0x40 [<000000006373da00>] do_idle+0x1c8/0x250