Warning: Permanently added '10.128.1.38' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 572.765398][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 572.855467][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 572.975389][ T94] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 572.983625][ T94] usb 1-1: config 0 has no interface number 0 [ 572.989884][ T94] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 572.998974][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 573.012901][ T94] usb 1-1: config 0 descriptor?? [ 573.061490][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 573.265297][ T94] snd_usb_pod 1-1:0.1: set_interface failed [ 573.271438][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 573.279102][ T94] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 573.287361][ T94] usb 1-1: USB disconnect, device number 2 [ 573.855277][ T94] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 573.945299][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 574.065300][ T94] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 574.073387][ T94] usb 1-1: config 0 has no interface number 0 [ 574.079754][ T94] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 574.088850][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 574.098390][ T94] usb 1-1: config 0 descriptor?? [ 574.137541][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 574.346605][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 716.734580][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor356:1796] [ 716.743456][ C0] Modules linked in: [ 716.747362][ C0] irq event stamp: 37354 [ 716.751716][ C0] hardirqs last enabled at (37353): [<ffffffff810047c1>] trace_hardirqs_on_thunk+0x1a/0x1c [ 716.761817][ C0] hardirqs last disabled at (37354): [<ffffffff810047dd>] trace_hardirqs_off_thunk+0x1a/0x1c [ 716.772045][ C0] softirqs last enabled at (26810): [<ffffffff85c00673>] __do_softirq+0x673/0x950 [ 716.781427][ C0] softirqs last disabled at (26793): [<ffffffff811584b8>] irq_exit+0x178/0x1a0 [ 716.791080][ C0] CPU: 0 PID: 1796 Comm: syz-executor356 Not tainted 5.6.0-rc3-syzkaller #0 [ 716.799757][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 716.809928][ C0] RIP: 0010:write_comp_data+0x1e/0x70 [ 716.815325][ C0] Code: 48 89 11 c3 0f 1f 84 00 00 00 00 00 65 4c 8b 04 25 00 0f 02 00 65 8b 05 78 b1 c2 7e a9 00 01 1f 00 75 51 41 8b 80 b0 12 00 00 <83> f8 03 75 45 49 8b 80 b8 12 00 00 45 8b 80 b4 12 00 00 4c 8b 08 [ 716.834949][ C0] RSP: 0018:ffff8881c5ef7a38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 716.843379][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 716.851363][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 716.859366][ C0] RBP: ffff8881c5ef7b08 R08: ffff8881cf2c4980 R09: 0000000000000000 [ 716.867352][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 716.875335][ C0] R13: 0000000000000000 R14: ffff8881ce6f8c40 R15: ffff8881db233dc0 [ 716.883319][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 716.892269][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 716.898878][ C0] CR2: 0000000000704208 CR3: 0000000007021000 CR4: 00000000001406f0 [ 716.906865][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 716.914870][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 716.922961][ C0] Call Trace: [ 716.926347][ C0] smp_call_function_single+0x2df/0x3a0 [ 716.932032][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 716.938633][ C0] ? generic_exec_single+0x370/0x370 [ 716.943947][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 716.950588][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 716.956511][ C0] smp_call_function_many_cond+0x25e/0x900 [ 716.962344][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 716.968884][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 716.974545][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 716.979692][ C0] tlb_flush_mmu+0x274/0x630 [ 716.985882][ C0] tlb_finish_mmu+0x93/0x420 [ 716.990514][ C0] exit_mmap+0x298/0x4d0 [ 716.995328][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 717.000404][ C0] mmput+0xce/0x3d0 [ 717.004244][ C0] do_exit+0xaa0/0x2c50 [ 717.008505][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 717.014530][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 717.020033][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 717.025445][ C0] ? raw_open+0x470/0x470 [ 717.029830][ C0] ? switch_fpu_return+0x1db/0x470 [ 717.034998][ C0] do_group_exit+0x125/0x340 [ 717.039613][ C0] __x64_sys_exit_group+0x3a/0x50 [ 717.044653][ C0] do_syscall_64+0xb6/0x5a0 [ 717.049179][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.055092][ C0] RIP: 0033:0x443668 [ 717.059076][ C0] Code: Bad RIP value. [ 717.063150][ C0] RSP: 002b:00007ffcf4db7be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 717.071676][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443668 [ 717.079663][ C0] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 717.087648][ C0] RBP: 00000000004c35a8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 717.095634][ C0] R10: a4504311277d8a50 R11: 0000000000000246 R12: 0000000000000001 [ 717.103624][ C0] R13: 00000000006d6f20 R14: 0000000000000000 R15: 0000000000000000 [ 717.111658][ C0] Sending NMI from CPU 0 to CPUs 1: [ 717.117923][ C0] NMI backtrace for cpu 1 [ 717.117930][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 717.117936][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 717.117940][ C0] RIP: 0010:line6_midibuf_read+0xab/0xa30 [ 717.117951][ C0] Code: 03 38 d0 7c 08 84 d2 0f 85 72 08 00 00 44 8b 65 14 44 89 ef 44 89 e6 e8 53 54 85 fc 45 39 e5 0f 84 ca 06 00 00 e8 55 53 85 fc <48> 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f [ 717.117955][ C0] RSP: 0018:ffff8881db3099e8 EFLAGS: 00000006 [ 717.117970][ C0] RAX: ffff8881da213100 RBX: 0000000000000100 RCX: ffffffff84ba098d [ 717.117975][ C0] RDX: 0000000000000100 RSI: ffffffff84ba099b RDI: 0000000000000004 [ 717.117980][ C0] RBP: ffff8881da2c56a0 R08: ffff8881da213100 R09: ffffed103ada0c81 [ 717.117985][ C0] R10: ffffed103ada0c80 R11: ffff8881d6d06400 R12: 0000000000000040 [ 717.117990][ C0] R13: 0000000000000020 R14: ffffed1039b2d1c5 R15: 0000000000000001 [ 717.117996][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 717.118000][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 717.118005][ C0] CR2: 00007f181b050000 CR3: 00000001d0d21000 CR4: 00000000001406e0 [ 717.118010][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 717.118015][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 717.118018][ C0] Call Trace: [ 717.118021][ C0] <IRQ> [ 717.118024][ C0] line6_data_received+0x318/0x520 [ 717.118028][ C0] ? device_id_show+0x80/0x80 [ 717.118032][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 717.118036][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 717.118039][ C0] dummy_timer+0x1258/0x32ae [ 717.118043][ C0] ? dummy_udc_probe+0x930/0x930 [ 717.118047][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 717.118050][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 717.118054][ C0] call_timer_fn+0x195/0x6f0 [ 717.118057][ C0] ? dummy_udc_probe+0x930/0x930 [ 717.118061][ C0] ? msleep_interruptible+0x130/0x130 [ 717.118065][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 717.118069][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 717.118073][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 717.118076][ C0] ? dummy_udc_probe+0x930/0x930 [ 717.118080][ C0] run_timer_softirq+0x5f9/0x1500 [ 717.118083][ C0] ? add_timer+0x7a0/0x7a0 [ 717.118087][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 717.118091][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 717.118095][ C0] __do_softirq+0x21e/0x950 [ 717.118098][ C0] irq_exit+0x178/0x1a0 [ 717.118102][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 717.118105][ C0] apic_timer_interrupt+0xf/0x20 [ 717.118108][ C0] </IRQ> [ 717.118112][ C0] RIP: 0010:default_idle+0x28/0x300 [ 717.118123][ 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 [ 717.118127][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 717.118136][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 717.118141][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 717.118146][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 717.118151][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 717.118156][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 717.118159][ C0] ? default_idle+0x1a/0x300 [ 717.118162][ C0] do_idle+0x3e0/0x500 [ 717.118166][ C0] ? __wake_up_common+0x147/0x650 [ 717.118170][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 717.118174][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 717.118177][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 717.118181][ C0] cpu_startup_entry+0x14/0x20 [ 717.118185][ C0] start_secondary+0x2a4/0x390 [ 717.118188][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 717.118192][ C0] secondary_startup_64+0xb6/0xc0 [ 717.118200][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 717.505938][ C0] CPU: 0 PID: 1796 Comm: syz-executor356 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 717.516013][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 717.526072][ C0] Call Trace: [ 717.529371][ C0] <IRQ> [ 717.532280][ C0] dump_stack+0xef/0x16e [ 717.536530][ C0] panic+0x2aa/0x6e1 [ 717.540430][ C0] ? add_taint.cold+0x16/0x16 [ 717.545112][ C0] ? cpumask_next+0x3c/0x40 [ 717.549711][ C0] ? printk_safe_flush+0xd9/0x120 [ 717.554755][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 717.560225][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 717.565698][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 717.570994][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 717.576208][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 717.582205][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 717.586949][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 717.593038][ C0] hrtimer_interrupt+0x2e8/0x730 [ 717.597995][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 717.603481][ C0] apic_timer_interrupt+0xf/0x20 [ 717.608421][ C0] </IRQ> [ 717.611379][ C0] RIP: 0010:write_comp_data+0x1e/0x70 [ 717.616768][ C0] Code: 48 89 11 c3 0f 1f 84 00 00 00 00 00 65 4c 8b 04 25 00 0f 02 00 65 8b 05 78 b1 c2 7e a9 00 01 1f 00 75 51 41 8b 80 b0 12 00 00 <83> f8 03 75 45 49 8b 80 b8 12 00 00 45 8b 80 b4 12 00 00 4c 8b 08 [ 717.636407][ C0] RSP: 0018:ffff8881c5ef7a38 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 717.644920][ C0] RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 717.653063][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 717.661155][ C0] RBP: ffff8881c5ef7b08 R08: ffff8881cf2c4980 R09: 0000000000000000 [ 717.669248][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 717.677344][ C0] R13: 0000000000000000 R14: ffff8881ce6f8c40 R15: ffff8881db233dc0 [ 717.685627][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 717.691440][ C0] smp_call_function_single+0x2df/0x3a0 [ 717.697102][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 717.703689][ C0] ? generic_exec_single+0x370/0x370 [ 717.709062][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 717.715691][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 717.721672][ C0] smp_call_function_many_cond+0x25e/0x900 [ 717.727518][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 717.734056][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 717.739710][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 717.744755][ C0] tlb_flush_mmu+0x274/0x630 [ 717.749359][ C0] tlb_finish_mmu+0x93/0x420 [ 717.753956][ C0] exit_mmap+0x298/0x4d0 [ 717.758203][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 717.763152][ C0] mmput+0xce/0x3d0 [ 717.766965][ C0] do_exit+0xaa0/0x2c50 [ 717.771157][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 717.777155][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 717.782545][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 717.787868][ C0] ? raw_open+0x470/0x470 [ 717.792207][ C0] ? switch_fpu_return+0x1db/0x470 [ 717.797326][ C0] do_group_exit+0x125/0x340 [ 717.801923][ C0] __x64_sys_exit_group+0x3a/0x50 [ 717.806969][ C0] do_syscall_64+0xb6/0x5a0 [ 717.811499][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 717.817409][ C0] RIP: 0033:0x443668 [ 717.821332][ C0] Code: Bad RIP value. [ 717.825410][ C0] RSP: 002b:00007ffcf4db7be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 717.833836][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000443668 [ 717.841823][ C0] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 717.849805][ C0] RBP: 00000000004c35a8 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 717.857806][ C0] R10: a4504311277d8a50 R11: 0000000000000246 R12: 0000000000000001 [ 717.865802][ C0] R13: 00000000006d6f20 R14: 0000000000000000 R15: 0000000000000000 [ 718.944553][ C0] Shutting down cpus with NMI [ 718.949636][ C0] Kernel Offset: disabled [ 718.954070][ C0] Rebooting in 86400 seconds..