[ 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 '10.128.0.172' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.551996][ T3802] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 50.791953][ T3802] usb 1-1: Using ep0 maxpacket: 8 [ 50.922014][ T3802] usb 1-1: config 1 interface 0 altsetting 4 has 1 endpoint descriptor, different from the interface descriptor's value: 0 [ 50.934825][ T3802] usb 1-1: config 1 interface 0 has no altsetting 0 [ 51.101987][ T3802] usb 1-1: New USB device found, idVendor=0525, idProduct=a4a8, bcdDevice= 0.40 [ 51.111696][ T3802] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 51.119878][ T3802] usb 1-1: Product: syz [ 51.124101][ T3802] usb 1-1: Manufacturer: syz [ 51.128797][ T3802] usb 1-1: SerialNumber: syz [ 51.382463][ T3841] usb 1-1: USB disconnect, device number 2 [ 56.658949][ T8482] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 58.877658][ T8482] kmemleak: 7 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88810ce97ea0 (size 32): comm "syz-executor917", pid 8483, jiffies 4294942293 (age 8.660s) 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: [<00000000c1eb8419>] gadget_bind+0x223/0x340 [<000000004cf1a525>] udc_bind_to_driver+0x62/0x150 [<00000000e7af1882>] usb_gadget_probe_driver+0x1c7/0x230 [<00000000353e45ef>] raw_ioctl+0x5da/0xf30 [<0000000065a217b2>] __x64_sys_ioctl+0xfc/0x140 [<000000009934ed16>] do_syscall_64+0x2d/0x70 [<00000000948a8b36>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88810d2aa180 (size 32): comm "softirq", pid 0, jiffies 4294942347 (age 8.120s) 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: [<000000003924e619>] gadget_setup+0xf6/0x220 [<0000000086461cef>] dummy_timer+0xb9f/0x14c0 [<000000003bc57068>] call_timer_fn+0x38/0x200 [<000000005f0138a3>] __run_timers.part.0+0x319/0x400 [<00000000a375ad5d>] run_timer_softirq+0x3d/0x80 [<00000000cdee86ef>] __do_softirq+0xcc/0x2c2 [<00000000095ae468>] asm_call_irq_on_stack+0xf/0x20 [<00000000f9a54619>] do_softirq_own_stack+0x32/0x40 [<0000000041300da9>] irq_exit_rcu+0x91/0xc0 [<000000006e6e0db8>] sysvec_apic_timer_interrupt+0x36/0x80 [<000000009660369f>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000f912c8d4>] acpi_idle_do_entry+0xc3/0xd0 [<0000000009f7137d>] acpi_idle_enter+0x128/0x1f0 [<0000000002f650aa>] cpuidle_enter_state+0xc9/0x650 [<00000000c9878e15>] cpuidle_enter+0x29/0x40 [<00000000d42af6fe>] do_idle+0x1c8/0x250 BUG: memory leak unreferenced object 0xffff88810b804040 (size 32): comm "softirq", pid 0, jiffies 4294942351 (age 8.080s) 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: [<000000003924e619>] gadget_setup+0xf6/0x220 [<0000000086461cef>] dummy_timer+0xb9f/0x14c0 [<000000003bc57068>] call_timer_fn+0x38/0x200 [<000000005f0138a3>] __run_timers.part.0+0x319/0x400 [<00000000a375ad5d>] run_timer_softirq+0x3d/0x80 [<00000000cdee86ef>] __do_softirq+0xcc/0x2c2 [<00000000095ae468>] asm_call_irq_on_stack+0xf/0x20 [<00000000f9a54619>] do_softirq_own_stack+0x32/0x40 [<0000000041300da9>] irq_exit_rcu+0x91/0xc0 [<000000006e6e0db8>] sysvec_apic_timer_interrupt+0x36/0x80 [<000000009660369f>] asm_sysvec_apic_timer_interrupt+0x12/0x20 [<00000000f912c8d4>] acpi_idle_do_entry+0xc3/0xd0 [<0000000009f7137d>] acpi_idle_enter+0x128/0x1f0 [<0000000002f650aa>] cpuidle_enter_state+0xc9/0x650 [<00000000c9878e15>] cpuidle_enter+0x29/0x40 [<00000000d42af6fe>] do_idle+0x1c8/0x250