Warning: Permanently added '10.128.0.107' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 864.954333][ T78] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 865.044313][ T78] usb 1-1: Using ep0 maxpacket: 32 [ 865.164314][ T78] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 865.172408][ T78] usb 1-1: config 0 has no interface number 0 [ 865.178767][ T78] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 865.187816][ T78] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 865.201890][ T78] usb 1-1: config 0 descriptor?? [ 865.250026][ T78] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 865.454280][ T78] snd_usb_pod 1-1:0.1: set_interface failed [ 865.460355][ T78] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 865.467906][ T78] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 865.476178][ T78] usb 1-1: USB disconnect, device number 2 [ 866.044232][ T78] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 866.134216][ T78] usb 1-1: Using ep0 maxpacket: 32 [ 866.254254][ T78] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 866.262250][ T78] usb 1-1: config 0 has no interface number 0 [ 866.268526][ T78] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 866.277568][ T78] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 866.287170][ T78] usb 1-1: config 0 descriptor?? [ 866.326501][ T78] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 866.545047][ T78] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 867.202315][ T94] usb 1-1: USB disconnect, device number 3 [ 867.408934][ T1800] udc-core: couldn't find an available UDC or it's busy [ 867.415996][ T1800] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 1002.258811][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor545:1800] [ 1002.267733][ C0] Modules linked in: [ 1002.271622][ C0] irq event stamp: 134952 [ 1002.276033][ C0] hardirqs last enabled at (134951): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1002.286211][ C0] hardirqs last disabled at (134952): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1002.296560][ C0] softirqs last enabled at (134950): [] __do_softirq+0x673/0x950 [ 1002.305978][ C0] softirqs last disabled at (134943): [] irq_exit+0x178/0x1a0 [ 1002.315689][ C0] CPU: 0 PID: 1800 Comm: syz-executor545 Not tainted 5.6.0-rc3-syzkaller #0 [ 1002.324351][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1002.334502][ C0] RIP: 0010:smp_call_function_single+0x2d3/0x3a0 [ 1002.340834][ C0] Code: 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 64 0a 00 e9 [ 1002.360444][ C0] RSP: 0018:ffff8881cda177c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1002.368852][ C0] RAX: ffff8881cf336200 RBX: 0000000000000003 RCX: ffffffff8134f89f [ 1002.376837][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 1002.384820][ C0] RBP: ffff8881cda17898 R08: ffff8881cf336200 R09: 0000000000000000 [ 1002.392786][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1002.400774][ C0] R13: 0000000000000000 R14: ffff8881cecfb9c0 R15: ffff8881db233dc0 [ 1002.408741][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 1002.417668][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1002.424244][ C0] CR2: 00007f273049de4c CR3: 0000000007021000 CR4: 00000000001406f0 [ 1002.432211][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1002.440175][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1002.448135][ C0] Call Trace: [ 1002.451505][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1002.458007][ C0] ? generic_exec_single+0x370/0x370 [ 1002.463284][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1002.469904][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 1002.475913][ C0] smp_call_function_many_cond+0x25e/0x900 [ 1002.481719][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1002.488213][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 1002.493833][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 1002.498916][ C0] tlb_flush_mmu+0x274/0x630 [ 1002.503506][ C0] tlb_finish_mmu+0x93/0x420 [ 1002.508087][ C0] exit_mmap+0x298/0x4d0 [ 1002.512319][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 1002.517259][ C0] mmput+0xce/0x3d0 [ 1002.521061][ C0] do_exit+0xaa0/0x2c50 [ 1002.525258][ C0] ? find_held_lock+0x2d/0x110 [ 1002.530019][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 1002.535416][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 1002.540264][ C0] do_group_exit+0x125/0x340 [ 1002.544901][ C0] get_signal+0x480/0x2470 [ 1002.549349][ C0] ? debug_check_no_obj_freed+0xc4/0x445 [ 1002.554978][ C0] ? futex_exit_release+0x60/0x60 [ 1002.560033][ C0] do_signal+0x88/0x1490 [ 1002.564327][ C0] ? __kasan_slab_free+0x12e/0x160 [ 1002.569489][ C0] ? raw_ioctl+0x3c5/0x1a70 [ 1002.573999][ C0] ? setup_sigcontext+0x820/0x820 [ 1002.579033][ C0] ? raw_ioctl+0x193/0x1a70 [ 1002.583530][ C0] ? __x64_sys_futex+0x380/0x4f0 [ 1002.588470][ C0] ? do_futex+0x1b90/0x1b90 [ 1002.592962][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 1002.598238][ C0] do_syscall_64+0x4e0/0x5a0 [ 1002.602823][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1002.608708][ C0] RIP: 0033:0x44a079 [ 1002.612611][ C0] Code: Bad RIP value. [ 1002.616665][ C0] RSP: 002b:00007f273049ed98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1002.625080][ C0] RAX: fffffffffffffe00 RBX: 00000000006dbc48 RCX: 000000000044a079 [ 1002.633043][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc48 [ 1002.641007][ C0] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 1002.648966][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 1002.656931][ C0] R13: 000000000000009f R14: 000000000000b1ee R15: 00000000000000e7 [ 1002.664902][ C0] Sending NMI from CPU 0 to CPUs 1: [ 1002.671132][ C0] NMI backtrace for cpu 1 [ 1002.671138][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 1002.671143][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1002.671147][ C0] RIP: 0010:line6_midibuf_read+0x17f/0xa30 [ 1002.671158][ C0] Code: fe e8 d5 53 85 fc 45 84 ff 0f 88 e6 00 00 00 e8 97 52 85 fc 48 8d 4d 1c 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 4c 24 28 <48> c1 ea 03 0f b6 14 02 48 89 c8 83 e0 07 83 c0 03 38 d0 7c 08 84 [ 1002.671162][ C0] RSP: 0018:ffff8881db3099e8 EFLAGS: 00000006 [ 1002.671170][ C0] RAX: dffffc0000000000 RBX: 0000000000000100 RCX: ffff8881d97566bc [ 1002.671175][ C0] RDX: ffff8881d97566bc RSI: ffffffff84ba0a59 RDI: 0000000000000001 [ 1002.671179][ C0] RBP: ffff8881d97566a0 R08: ffff8881da213100 R09: ffffed103b2eaf41 [ 1002.671184][ C0] R10: ffffed103b2eaf40 R11: ffff8881d9757a00 R12: 0000000000000018 [ 1002.671189][ C0] R13: 000000000000000a R14: 00000000000003f6 R15: 0000000000000051 [ 1002.671194][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 1002.671198][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1002.671203][ C0] CR2: 00007f7c9d08e000 CR3: 00000001c66a3000 CR4: 00000000001406e0 [ 1002.671208][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1002.671213][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1002.671215][ C0] Call Trace: [ 1002.671217][ C0] [ 1002.671222][ C0] line6_data_received+0x318/0x520 [ 1002.671225][ C0] ? device_id_show+0x80/0x80 [ 1002.671229][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 1002.671232][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 1002.671236][ C0] dummy_timer+0x1258/0x32ae [ 1002.671239][ C0] ? dummy_udc_probe+0x930/0x930 [ 1002.671243][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1002.671247][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1002.671250][ C0] call_timer_fn+0x195/0x6f0 [ 1002.671253][ C0] ? dummy_udc_probe+0x930/0x930 [ 1002.671257][ C0] ? msleep_interruptible+0x130/0x130 [ 1002.671261][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1002.671265][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1002.671268][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 1002.671272][ C0] ? dummy_udc_probe+0x930/0x930 [ 1002.671275][ C0] run_timer_softirq+0x5f9/0x1500 [ 1002.671279][ C0] ? add_timer+0x7a0/0x7a0 [ 1002.671283][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1002.671286][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1002.671289][ C0] __do_softirq+0x21e/0x950 [ 1002.671293][ C0] irq_exit+0x178/0x1a0 [ 1002.671296][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 1002.671300][ C0] apic_timer_interrupt+0xf/0x20 [ 1002.671303][ C0] [ 1002.671306][ C0] RIP: 0010:default_idle+0x28/0x300 [ 1002.671316][ 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 [ 1002.671320][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1002.671329][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 1002.671333][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 1002.671338][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 1002.671343][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1002.671348][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 1002.671351][ C0] ? default_idle+0x1a/0x300 [ 1002.671354][ C0] do_idle+0x3e0/0x500 [ 1002.671358][ C0] ? __wake_up_common+0x147/0x650 [ 1002.671361][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 1002.671365][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1002.671369][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 1002.671372][ C0] cpu_startup_entry+0x14/0x20 [ 1002.671376][ C0] start_secondary+0x2a4/0x390 [ 1002.671379][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 1002.671383][ C0] secondary_startup_64+0xb6/0xc0 [ 1002.671390][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 1003.057893][ C0] CPU: 0 PID: 1800 Comm: syz-executor545 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 1003.067944][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1003.077995][ C0] Call Trace: [ 1003.081274][ C0] [ 1003.084203][ C0] dump_stack+0xef/0x16e [ 1003.088448][ C0] panic+0x2aa/0x6e1 [ 1003.092332][ C0] ? add_taint.cold+0x16/0x16 [ 1003.096999][ C0] ? cpumask_next+0x3c/0x40 [ 1003.101539][ C0] ? printk_safe_flush+0xd9/0x120 [ 1003.106598][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 1003.112061][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 1003.117524][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 1003.122806][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 1003.127999][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 1003.133969][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 1003.138681][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 1003.144739][ C0] hrtimer_interrupt+0x2e8/0x730 [ 1003.149674][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 1003.155126][ C0] apic_timer_interrupt+0xf/0x20 [ 1003.160051][ C0] [ 1003.162983][ C0] RIP: 0010:smp_call_function_single+0x2d3/0x3a0 [ 1003.169306][ C0] Code: 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 64 0a 00 e9 [ 1003.188916][ C0] RSP: 0018:ffff8881cda177c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1003.197328][ C0] RAX: ffff8881cf336200 RBX: 0000000000000003 RCX: ffffffff8134f89f [ 1003.205290][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 1003.213259][ C0] RBP: ffff8881cda17898 R08: ffff8881cf336200 R09: 0000000000000000 [ 1003.221229][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1003.229210][ C0] R13: 0000000000000000 R14: ffff8881cecfb9c0 R15: ffff8881db233dc0 [ 1003.237189][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 1003.242908][ C0] ? smp_call_function_single+0x2cd/0x3a0 [ 1003.248632][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1003.255125][ C0] ? generic_exec_single+0x370/0x370 [ 1003.260404][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1003.266910][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 1003.272821][ C0] smp_call_function_many_cond+0x25e/0x900 [ 1003.278630][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1003.285121][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 1003.290839][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 1003.295858][ C0] tlb_flush_mmu+0x274/0x630 [ 1003.300449][ C0] tlb_finish_mmu+0x93/0x420 [ 1003.305031][ C0] exit_mmap+0x298/0x4d0 [ 1003.309266][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 1003.314198][ C0] mmput+0xce/0x3d0 [ 1003.318019][ C0] do_exit+0xaa0/0x2c50 [ 1003.322171][ C0] ? find_held_lock+0x2d/0x110 [ 1003.326929][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 1003.332298][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 1003.337154][ C0] do_group_exit+0x125/0x340 [ 1003.341746][ C0] get_signal+0x480/0x2470 [ 1003.346172][ C0] ? debug_check_no_obj_freed+0xc4/0x445 [ 1003.351799][ C0] ? futex_exit_release+0x60/0x60 [ 1003.356817][ C0] do_signal+0x88/0x1490 [ 1003.361060][ C0] ? __kasan_slab_free+0x12e/0x160 [ 1003.366169][ C0] ? raw_ioctl+0x3c5/0x1a70 [ 1003.370671][ C0] ? setup_sigcontext+0x820/0x820 [ 1003.375687][ C0] ? raw_ioctl+0x193/0x1a70 [ 1003.380182][ C0] ? __x64_sys_futex+0x380/0x4f0 [ 1003.385111][ C0] ? do_futex+0x1b90/0x1b90 [ 1003.389607][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 1003.394888][ C0] do_syscall_64+0x4e0/0x5a0 [ 1003.399475][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1003.405365][ C0] RIP: 0033:0x44a079 [ 1003.409265][ C0] Code: Bad RIP value. [ 1003.413331][ C0] RSP: 002b:00007f273049ed98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 1003.421742][ C0] RAX: fffffffffffffe00 RBX: 00000000006dbc48 RCX: 000000000044a079 [ 1003.429710][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc48 [ 1003.437677][ C0] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 1003.445657][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 1003.453636][ C0] R13: 000000000000009f R14: 000000000000b1ee R15: 00000000000000e7 [ 1004.523913][ C0] Shutting down cpus with NMI [ 1004.529088][ C0] Kernel Offset: disabled [ 1004.533447][ C0] Rebooting in 86400 seconds..