Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 553.525155][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 553.615401][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 553.735114][ T94] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 553.743269][ T94] usb 1-1: config 0 has no interface number 0 [ 553.749614][ T94] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 553.758715][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 553.772495][ T94] usb 1-1: config 0 descriptor?? [ 553.823336][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 554.025131][ T94] snd_usb_pod 1-1:0.1: set_interface failed [ 554.031266][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 554.038979][ T94] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 554.047740][ T94] usb 1-1: USB disconnect, device number 2 [ 554.604998][ T94] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 554.695188][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 554.815179][ T94] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 554.823208][ T94] usb 1-1: config 0 has no interface number 0 [ 554.829549][ T94] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 554.838733][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 554.848253][ T94] usb 1-1: config 0 descriptor?? [ 554.889287][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 555.085626][ T1802] udc-core: couldn't find an available UDC or it's busy [ 555.093030][ T1802] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 555.116166][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 695.297849][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor868:1802] [ 695.306881][ C0] Modules linked in: [ 695.310770][ C0] irq event stamp: 29174 [ 695.315107][ C0] hardirqs last enabled at (29173): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 695.325270][ C0] hardirqs last disabled at (29174): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 695.335565][ C0] softirqs last enabled at (23002): [] __do_softirq+0x673/0x950 [ 695.344943][ C0] softirqs last disabled at (22985): [] irq_exit+0x178/0x1a0 [ 695.355463][ C0] CPU: 0 PID: 1802 Comm: syz-executor868 Not tainted 5.6.0-rc3-syzkaller #0 [ 695.364172][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 695.374371][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 695.380740][ C0] Code: 5f 5d c3 e8 83 64 0a 00 48 8b 54 24 08 4c 89 f9 8b 7c 24 14 48 8d 74 24 40 e8 cd f9 ff ff 41 89 c4 eb 07 e8 63 64 0a 00 f3 90 <8b> 5c 24 58 31 ff 83 e3 01 89 de e8 c1 65 0a 00 85 db 75 e5 e8 48 [ 695.400449][ C0] RSP: 0018:ffff8881c6b777c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 695.408945][ C0] RAX: ffff8881cd83e200 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 695.416949][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 695.424999][ C0] RBP: ffff8881c6b77898 R08: ffff8881cd83e200 R09: 0000000000000000 [ 695.432974][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 695.440950][ C0] R13: 0000000000000000 R14: ffff8881ce7be740 R15: ffff8881db233dc0 [ 695.448945][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 695.458034][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 695.464637][ C0] CR2: 00007f8b90985000 CR3: 0000000007021000 CR4: 00000000001406f0 [ 695.473072][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 695.481056][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 695.489030][ C0] Call Trace: [ 695.492426][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 695.498922][ C0] ? generic_exec_single+0x370/0x370 [ 695.504222][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 695.510877][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 695.516851][ C0] smp_call_function_many_cond+0x25e/0x900 [ 695.522673][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 695.529167][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 695.534793][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 695.539889][ C0] tlb_flush_mmu+0x274/0x630 [ 695.544475][ C0] tlb_finish_mmu+0x93/0x420 [ 695.549059][ C0] exit_mmap+0x298/0x4d0 [ 695.553319][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 695.558248][ C0] mmput+0xce/0x3d0 [ 695.562079][ C0] do_exit+0xaa0/0x2c50 [ 695.566360][ C0] ? find_held_lock+0x2d/0x110 [ 695.571195][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 695.576732][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 695.581598][ C0] do_group_exit+0x125/0x340 [ 695.586251][ C0] get_signal+0x480/0x2470 [ 695.590680][ C0] ? lock_acquire+0x130/0x340 [ 695.595354][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 695.601201][ C0] do_signal+0x88/0x1490 [ 695.605505][ C0] ? free_object+0x5/0x70 [ 695.609866][ C0] ? hrtimer_nanosleep+0x211/0x3a0 [ 695.615008][ C0] ? nanosleep_copyout+0x100/0x100 [ 695.620124][ C0] ? setup_sigcontext+0x820/0x820 [ 695.625145][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 695.631183][ C0] ? put_old_itimerspec32+0x1d0/0x1d0 [ 695.636607][ C0] ? raw_open+0x470/0x470 [ 695.640932][ C0] ? __x64_sys_nanosleep+0x1ed/0x260 [ 695.646207][ C0] ? hrtimer_nanosleep+0x3a0/0x3a0 [ 695.651310][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 695.656585][ C0] do_syscall_64+0x4e0/0x5a0 [ 695.661173][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 695.667053][ C0] RIP: 0033:0x475a01 [ 695.671062][ C0] Code: Bad RIP value. [ 695.675145][ C0] RSP: 002b:00007f59af4b9d40 EFLAGS: 00000293 ORIG_RAX: 0000000000000023 [ 695.683720][ C0] RAX: fffffffffffffdfc RBX: 0000000000000003 RCX: 0000000000475a01 [ 695.691775][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f59af4b9d50 [ 695.699741][ C0] RBP: 00000000006dbc20 R08: d3ae99f983873ff8 R09: 0000000000000000 [ 695.707704][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dbc2c [ 695.715694][ C0] R13: 00000000004aeb58 R14: 0000000000000007 R15: 00000000000000e7 [ 695.724035][ C0] Sending NMI from CPU 0 to CPUs 1: [ 695.730280][ C0] NMI backtrace for cpu 1 [ 695.730286][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 695.730292][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 695.730296][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x16/0x50 [ 695.730308][ C0] Code: c8 12 00 00 c3 0f 1f 44 00 00 66 2e 0f 1f 84 00 00 00 00 00 65 48 8b 04 25 00 0f 02 00 65 8b 15 c8 b1 c2 7e 81 e2 00 01 1f 00 <48> 8b 34 24 75 2b 8b 90 b0 12 00 00 83 fa 02 75 20 48 8b 88 b8 12 [ 695.730312][ C0] RSP: 0018:ffff8881db3099e0 EFLAGS: 00000006 [ 695.730320][ C0] RAX: ffff8881da213100 RBX: 00000000000000f8 RCX: ffffffff84ba0ac7 [ 695.730325][ C0] RDX: 0000000000000100 RSI: 00000000000000ef RDI: 0000000000000001 [ 695.730330][ C0] RBP: ffff8881d5a8d8a0 R08: ffff8881da213100 R09: ffffed103ab51b41 [ 695.730336][ C0] R10: ffffed103ab51b40 R11: ffff8881d5a8da00 R12: 0000000000000007 [ 695.730341][ C0] R13: 0000000000000010 R14: 00000000000003f0 R15: 000000000000003f [ 695.730347][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 695.730351][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 695.730356][ C0] CR2: 00007f8b90985000 CR3: 00000001cd9f5000 CR4: 00000000001406e0 [ 695.730361][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 695.730366][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 695.730369][ C0] Call Trace: [ 695.730371][ C0] [ 695.730375][ C0] line6_midibuf_read+0x1e5/0xa30 [ 695.730379][ C0] line6_data_received+0x318/0x520 [ 695.730382][ C0] ? device_id_show+0x80/0x80 [ 695.730386][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 695.730390][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 695.730393][ C0] dummy_timer+0x1258/0x32ae [ 695.730397][ C0] ? dummy_udc_probe+0x930/0x930 [ 695.730400][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 695.730404][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 695.730408][ C0] call_timer_fn+0x195/0x6f0 [ 695.730411][ C0] ? dummy_udc_probe+0x930/0x930 [ 695.730415][ C0] ? msleep_interruptible+0x130/0x130 [ 695.730419][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 695.730423][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 695.730426][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 695.730430][ C0] ? dummy_udc_probe+0x930/0x930 [ 695.730434][ C0] run_timer_softirq+0x5f9/0x1500 [ 695.730437][ C0] ? add_timer+0x7a0/0x7a0 [ 695.730441][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 695.730445][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 695.730448][ C0] __do_softirq+0x21e/0x950 [ 695.730451][ C0] irq_exit+0x178/0x1a0 [ 695.730455][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 695.730458][ C0] apic_timer_interrupt+0xf/0x20 [ 695.730461][ C0] [ 695.730465][ C0] RIP: 0010:default_idle+0x28/0x300 [ 695.730476][ C0] Code: cc cc 41 56 41 55 65 44 8b 2d 94 c9 72 7a 41 54 55 53 0f 1f 44 00 00 e8 16 bb b5 fb e9 07 00 00 00 0f 00 2d 3a 5f 53 00 fb f4 <65> 44 8b 2d 70 c9 72 7a 0f 1f 44 00 00 5b 5d 41 5c 41 5d 41 5e c3 [ 695.730480][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 695.730488][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 695.730493][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 695.730499][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 695.730504][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 695.730509][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 695.730512][ C0] ? default_idle+0x1a/0x300 [ 695.730515][ C0] do_idle+0x3e0/0x500 [ 695.730519][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 695.730522][ C0] cpu_startup_entry+0x14/0x20 [ 695.730525][ C0] start_secondary+0x2a4/0x390 [ 695.730529][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 695.730533][ C0] secondary_startup_64+0xb6/0xc0 [ 695.730540][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 696.110285][ C0] CPU: 0 PID: 1802 Comm: syz-executor868 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 696.120444][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 696.130665][ C0] Call Trace: [ 696.141611][ C0] [ 696.144571][ C0] dump_stack+0xef/0x16e [ 696.148815][ C0] panic+0x2aa/0x6e1 [ 696.152727][ C0] ? add_taint.cold+0x16/0x16 [ 696.157400][ C0] ? cpumask_next+0x3c/0x40 [ 696.161988][ C0] ? printk_safe_flush+0xd9/0x120 [ 696.167030][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 696.172493][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 696.178042][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 696.183504][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 696.188699][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 696.194670][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 696.199395][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 696.205452][ C0] hrtimer_interrupt+0x2e8/0x730 [ 696.210387][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 696.215837][ C0] apic_timer_interrupt+0xf/0x20 [ 696.220780][ C0] [ 696.223731][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 696.230072][ C0] Code: 5f 5d c3 e8 83 64 0a 00 48 8b 54 24 08 4c 89 f9 8b 7c 24 14 48 8d 74 24 40 e8 cd f9 ff ff 41 89 c4 eb 07 e8 63 64 0a 00 f3 90 <8b> 5c 24 58 31 ff 83 e3 01 89 de e8 c1 65 0a 00 85 db 75 e5 e8 48 [ 696.249684][ C0] RSP: 0018:ffff8881c6b777c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 696.258091][ C0] RAX: ffff8881cd83e200 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 696.267325][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 696.275634][ C0] RBP: ffff8881c6b77898 R08: ffff8881cd83e200 R09: 0000000000000000 [ 696.283592][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 696.291557][ C0] R13: 0000000000000000 R14: ffff8881ce7be740 R15: ffff8881db233dc0 [ 696.299538][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 696.305248][ C0] ? smp_call_function_single+0x2cd/0x3a0 [ 696.310967][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 696.317538][ C0] ? generic_exec_single+0x370/0x370 [ 696.322814][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 696.329311][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 696.335195][ C0] smp_call_function_many_cond+0x25e/0x900 [ 696.341019][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 696.347518][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 696.353143][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 696.358187][ C0] tlb_flush_mmu+0x274/0x630 [ 696.362770][ C0] tlb_finish_mmu+0x93/0x420 [ 696.367364][ C0] exit_mmap+0x298/0x4d0 [ 696.371598][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 696.376533][ C0] mmput+0xce/0x3d0 [ 696.380332][ C0] do_exit+0xaa0/0x2c50 [ 696.384478][ C0] ? find_held_lock+0x2d/0x110 [ 696.389233][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 696.394605][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 696.399447][ C0] do_group_exit+0x125/0x340 [ 696.404028][ C0] get_signal+0x480/0x2470 [ 696.408434][ C0] ? lock_acquire+0x130/0x340 [ 696.413106][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 696.418902][ C0] do_signal+0x88/0x1490 [ 696.423310][ C0] ? free_object+0x5/0x70 [ 696.427903][ C0] ? hrtimer_nanosleep+0x211/0x3a0 [ 696.433004][ C0] ? nanosleep_copyout+0x100/0x100 [ 696.438103][ C0] ? setup_sigcontext+0x820/0x820 [ 696.443141][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 696.449112][ C0] ? put_old_itimerspec32+0x1d0/0x1d0 [ 696.454476][ C0] ? raw_open+0x470/0x470 [ 696.458830][ C0] ? __x64_sys_nanosleep+0x1ed/0x260 [ 696.464120][ C0] ? hrtimer_nanosleep+0x3a0/0x3a0 [ 696.469246][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 696.474534][ C0] do_syscall_64+0x4e0/0x5a0 [ 696.479206][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 696.485103][ C0] RIP: 0033:0x475a01 [ 696.489000][ C0] Code: Bad RIP value. [ 696.493491][ C0] RSP: 002b:00007f59af4b9d40 EFLAGS: 00000293 ORIG_RAX: 0000000000000023 [ 696.501892][ C0] RAX: fffffffffffffdfc RBX: 0000000000000003 RCX: 0000000000475a01 [ 696.509867][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007f59af4b9d50 [ 696.517863][ C0] RBP: 00000000006dbc20 R08: d3ae99f983873ff8 R09: 0000000000000000 [ 696.525854][ C0] R10: 0000000000000000 R11: 0000000000000293 R12: 00000000006dbc2c [ 696.533857][ C0] R13: 00000000004aeb58 R14: 0000000000000007 R15: 00000000000000e7 [ 697.636607][ C0] Shutting down cpus with NMI [ 697.641861][ C0] Kernel Offset: disabled [ 697.646334][ C0] Rebooting in 86400 seconds..