Warning: Permanently added '10.128.0.81' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 873.610822][ T78] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 873.701019][ T78] usb 1-1: Using ep0 maxpacket: 32 [ 873.820753][ T78] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 873.829238][ T78] usb 1-1: config 0 has no interface number 0 [ 873.835556][ T78] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 873.844646][ T78] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 873.858858][ T78] usb 1-1: config 0 descriptor?? [ 873.908776][ T78] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 874.111619][ T78] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 1024.972061][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor236:1794] [ 1024.980783][ C0] Modules linked in: [ 1024.984665][ C0] irq event stamp: 37852 [ 1024.989017][ C0] hardirqs last enabled at (37851): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1024.999068][ C0] hardirqs last disabled at (37852): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1025.009333][ C0] softirqs last enabled at (37656): [] __do_softirq+0x673/0x950 [ 1025.019167][ C0] softirqs last disabled at (37639): [] irq_exit+0x178/0x1a0 [ 1025.028799][ C0] CPU: 0 PID: 1794 Comm: syz-executor236 Not tainted 5.6.0-rc3-syzkaller #0 [ 1025.037451][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1025.047592][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 1025.053912][ 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 [ 1025.073519][ C0] RSP: 0018:ffff8881cd49fa40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1025.081918][ C0] RAX: ffff8881cd490000 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 1025.089876][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 1025.097838][ C0] RBP: ffff8881cd49fb08 R08: ffff8881cd490000 R09: 0000000000000000 [ 1025.105813][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1025.113799][ C0] R13: 0000000000000000 R14: ffff8881ce924d40 R15: ffff8881db233dc0 [ 1025.121765][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 1025.130682][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1025.137274][ C0] CR2: 0000000001f5d1b8 CR3: 0000000007021000 CR4: 00000000001406f0 [ 1025.145239][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1025.153216][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1025.161174][ C0] Call Trace: [ 1025.164646][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1025.171137][ C0] ? generic_exec_single+0x370/0x370 [ 1025.176409][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1025.182985][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 1025.188867][ C0] smp_call_function_many_cond+0x25e/0x900 [ 1025.194665][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1025.201153][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 1025.206775][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 1025.211854][ C0] tlb_flush_mmu+0x274/0x630 [ 1025.216433][ C0] tlb_finish_mmu+0x93/0x420 [ 1025.221012][ C0] exit_mmap+0x298/0x4d0 [ 1025.225245][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 1025.230172][ C0] mmput+0xce/0x3d0 [ 1025.234074][ C0] do_exit+0xaa0/0x2c50 [ 1025.238249][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 1025.244216][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 1025.249637][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1025.254963][ C0] ? raw_open+0x470/0x470 [ 1025.259290][ C0] ? switch_fpu_return+0x1db/0x470 [ 1025.264389][ C0] do_group_exit+0x125/0x340 [ 1025.268968][ C0] __x64_sys_exit_group+0x3a/0x50 [ 1025.273981][ C0] do_syscall_64+0xb6/0x5a0 [ 1025.278475][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1025.284356][ C0] RIP: 0033:0x4435b8 [ 1025.288249][ C0] Code: Bad RIP value. [ 1025.292302][ C0] RSP: 002b:00007fffd503e6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1025.300876][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004435b8 [ 1025.308835][ C0] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 1025.316816][ C0] RBP: 00000000004c3328 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 1025.324776][ C0] R10: 30671bb8c531caf3 R11: 0000000000000246 R12: 0000000000000001 [ 1025.332739][ C0] R13: 00000000006d6f20 R14: 0000000000000000 R15: 0000000000000000 [ 1025.340711][ C0] Sending NMI from CPU 0 to CPUs 1: [ 1025.346938][ C0] NMI backtrace for cpu 1 [ 1025.346943][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 1025.346950][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1025.346954][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x9/0x50 [ 1025.346970][ C0] Code: cc 65 48 8b 04 25 00 0f 02 00 48 8b 80 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 [ 1025.346974][ C0] RSP: 0018:ffff8881db3099e0 EFLAGS: 00000046 [ 1025.346982][ C0] RAX: ffff8881da213100 RBX: 00000000000000fc RCX: ffffffff84ba0d94 [ 1025.346987][ C0] RDX: 1ffff1103a8dca57 RSI: ffffffff84ba0e06 RDI: ffff8881d46e52b8 [ 1025.346992][ C0] RBP: ffff8881d46e52a0 R08: ffff8881da213100 R09: ffffed103a8dca81 [ 1025.346997][ C0] R10: ffffed103a8dca80 R11: ffff8881d46e5400 R12: 0000000000000001 [ 1025.347002][ C0] R13: 000000000000000a R14: 00000000000003f6 R15: 0000000000000001 [ 1025.347008][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 1025.347012][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1025.347018][ C0] CR2: 00007f8f7e5d0000 CR3: 00000001d058d000 CR4: 00000000001406e0 [ 1025.347023][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1025.347028][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1025.347030][ C0] Call Trace: [ 1025.347033][ C0] [ 1025.347036][ C0] line6_midibuf_read+0x547/0xa30 [ 1025.347040][ C0] line6_data_received+0x318/0x520 [ 1025.347043][ C0] ? device_id_show+0x80/0x80 [ 1025.347047][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 1025.347050][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 1025.347058][ C0] dummy_timer+0x1258/0x32ae [ 1025.347061][ C0] ? dummy_udc_probe+0x930/0x930 [ 1025.347065][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1025.347069][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1025.347072][ C0] call_timer_fn+0x195/0x6f0 [ 1025.347076][ C0] ? dummy_udc_probe+0x930/0x930 [ 1025.347080][ C0] ? msleep_interruptible+0x130/0x130 [ 1025.347084][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1025.347087][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1025.347091][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 1025.347094][ C0] ? dummy_udc_probe+0x930/0x930 [ 1025.347098][ C0] run_timer_softirq+0x5f9/0x1500 [ 1025.347101][ C0] ? add_timer+0x7a0/0x7a0 [ 1025.347105][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1025.347109][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1025.347112][ C0] __do_softirq+0x21e/0x950 [ 1025.347115][ C0] irq_exit+0x178/0x1a0 [ 1025.347119][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 1025.347122][ C0] apic_timer_interrupt+0xf/0x20 [ 1025.347125][ C0] [ 1025.347129][ C0] RIP: 0010:default_idle+0x28/0x300 [ 1025.347140][ 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 [ 1025.347144][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1025.347153][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 1025.347158][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 1025.347163][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 1025.347168][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1025.347173][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 1025.347176][ C0] ? default_idle+0x1a/0x300 [ 1025.347179][ C0] do_idle+0x3e0/0x500 [ 1025.347183][ C0] ? __wake_up_common+0x147/0x650 [ 1025.347187][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 1025.347191][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1025.347194][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 1025.347198][ C0] cpu_startup_entry+0x14/0x20 [ 1025.347201][ C0] start_secondary+0x2a4/0x390 [ 1025.347205][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 1025.347208][ C0] secondary_startup_64+0xb6/0xc0 [ 1025.347215][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 1025.739592][ C0] CPU: 0 PID: 1794 Comm: syz-executor236 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 1025.749642][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1025.759687][ C0] Call Trace: [ 1025.762968][ C0] [ 1025.765904][ C0] dump_stack+0xef/0x16e [ 1025.770137][ C0] panic+0x2aa/0x6e1 [ 1025.774096][ C0] ? add_taint.cold+0x16/0x16 [ 1025.778771][ C0] ? cpumask_next+0x3c/0x40 [ 1025.783298][ C0] ? printk_safe_flush+0xd9/0x120 [ 1025.788312][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 1025.793761][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 1025.799212][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 1025.804512][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 1025.809723][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 1025.815695][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 1025.820417][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 1025.826474][ C0] hrtimer_interrupt+0x2e8/0x730 [ 1025.831410][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 1025.836858][ C0] apic_timer_interrupt+0xf/0x20 [ 1025.841795][ C0] [ 1025.844728][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 1025.851394][ 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 [ 1025.871164][ C0] RSP: 0018:ffff8881cd49fa40 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1025.879565][ C0] RAX: ffff8881cd490000 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 1025.887529][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 1025.895488][ C0] RBP: ffff8881cd49fb08 R08: ffff8881cd490000 R09: 0000000000000000 [ 1025.903464][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1025.911437][ C0] R13: 0000000000000000 R14: ffff8881ce924d40 R15: ffff8881db233dc0 [ 1025.919410][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 1025.925120][ C0] ? smp_call_function_single+0x2cd/0x3a0 [ 1025.930832][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1025.937322][ C0] ? generic_exec_single+0x370/0x370 [ 1025.942614][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1025.949124][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 1025.955011][ C0] smp_call_function_many_cond+0x25e/0x900 [ 1025.960818][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1025.967318][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 1025.972949][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 1025.977965][ C0] tlb_flush_mmu+0x274/0x630 [ 1025.982546][ C0] tlb_finish_mmu+0x93/0x420 [ 1025.987124][ C0] exit_mmap+0x298/0x4d0 [ 1025.991355][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 1025.996283][ C0] mmput+0xce/0x3d0 [ 1026.000085][ C0] do_exit+0xaa0/0x2c50 [ 1026.004230][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 1026.010197][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 1026.015555][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1026.020826][ C0] ? raw_open+0x470/0x470 [ 1026.025145][ C0] ? switch_fpu_return+0x1db/0x470 [ 1026.030244][ C0] do_group_exit+0x125/0x340 [ 1026.034820][ C0] __x64_sys_exit_group+0x3a/0x50 [ 1026.039833][ C0] do_syscall_64+0xb6/0x5a0 [ 1026.044330][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1026.050232][ C0] RIP: 0033:0x4435b8 [ 1026.054123][ C0] Code: Bad RIP value. [ 1026.058177][ C0] RSP: 002b:00007fffd503e6e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 1026.066574][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004435b8 [ 1026.074534][ C0] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 1026.082492][ C0] RBP: 00000000004c3328 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 1026.090450][ C0] R10: 30671bb8c531caf3 R11: 0000000000000246 R12: 0000000000000001 [ 1026.098414][ C0] R13: 00000000006d6f20 R14: 0000000000000000 R15: 0000000000000000 [ 1027.199698][ C0] Shutting down cpus with NMI [ 1027.205031][ C0] Kernel Offset: disabled [ 1027.209460][ C0] Rebooting in 86400 seconds..