Warning: Permanently added '10.128.0.93' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 721.810087][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 721.900225][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 722.020549][ T95] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 722.028866][ T95] usb 1-1: config 0 has no interface number 0 [ 722.035594][ T95] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 722.044790][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 722.059006][ T95] usb 1-1: config 0 descriptor?? [ 722.107992][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 722.309974][ T95] snd_usb_pod 1-1:0.1: set_interface failed [ 722.316097][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 722.323716][ T95] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 722.332103][ T95] usb 1-1: USB disconnect, device number 2 [ 722.900371][ T95] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 722.990071][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 723.110051][ T95] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 723.118270][ T95] usb 1-1: config 0 has no interface number 0 [ 723.124713][ T95] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 723.133807][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 723.143357][ T95] usb 1-1: config 0 descriptor?? [ 723.192473][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 723.399982][ T95] snd_usb_pod 1-1:0.1: set_interface failed [ 723.405989][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 723.413522][ T95] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 723.421332][ T95] usb 1-1: USB disconnect, device number 3 [ 723.989935][ T95] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 724.080007][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 724.200436][ T95] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 724.208557][ T95] usb 1-1: config 0 has no interface number 0 [ 724.214874][ T95] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 724.224467][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 724.233765][ T95] usb 1-1: config 0 descriptor?? [ 724.282060][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 724.500848][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 870.575289][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor421:1799] [ 870.584145][ C0] Modules linked in: [ 870.588047][ C0] irq event stamp: 38436 [ 870.592373][ C0] hardirqs last enabled at (38435): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 870.602447][ C0] hardirqs last disabled at (38436): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 870.612637][ C0] softirqs last enabled at (33118): [] __do_softirq+0x673/0x950 [ 870.621962][ C0] softirqs last disabled at (33101): [] irq_exit+0x178/0x1a0 [ 870.631668][ C0] CPU: 0 PID: 1799 Comm: syz-executor421 Not tainted 5.6.0-rc3-syzkaller #0 [ 870.640328][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 870.650560][ C0] RIP: 0010:write_comp_data+0x0/0x70 [ 870.655856][ C0] Code: 20 48 8b 88 b8 12 00 00 8b 80 b4 12 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 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 [ 870.675676][ C0] RSP: 0018:ffff8881ce7c7a38 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 870.684256][ C0] RAX: ffff8881ce4d6200 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 870.692406][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 870.700502][ C0] RBP: ffff8881ce7c7b08 R08: ffff8881ce4d6200 R09: 0000000000000000 [ 870.708478][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 870.716448][ C0] R13: 0000000000000000 R14: ffff8881cdfc1fc0 R15: ffff8881db233dc0 [ 870.724426][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 870.733348][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 870.739927][ C0] CR2: 00007f92ebfa0000 CR3: 0000000007021000 CR4: 00000000001406f0 [ 870.748067][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 870.756030][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 870.763989][ C0] Call Trace: [ 870.767346][ C0] smp_call_function_single+0x2df/0x3a0 [ 870.773168][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 870.779950][ C0] ? generic_exec_single+0x370/0x370 [ 870.785364][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 870.791989][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 870.798014][ C0] smp_call_function_many_cond+0x25e/0x900 [ 870.803994][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 870.810497][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 870.816313][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 870.821409][ C0] tlb_flush_mmu+0x274/0x630 [ 870.825993][ C0] tlb_finish_mmu+0x93/0x420 [ 870.830577][ C0] exit_mmap+0x298/0x4d0 [ 870.835604][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 870.840536][ C0] mmput+0xce/0x3d0 [ 870.844603][ C0] do_exit+0xaa0/0x2c50 [ 870.848759][ C0] ? do_group_exit+0x2c7/0x340 [ 870.853515][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 870.858939][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 870.863828][ C0] ? do_raw_spin_lock+0x129/0x290 [ 870.868846][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 870.874035][ C0] do_group_exit+0x125/0x340 [ 870.878618][ C0] __x64_sys_exit_group+0x3a/0x50 [ 870.883892][ C0] do_syscall_64+0xb6/0x5a0 [ 870.888387][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 870.894268][ C0] RIP: 0033:0x448e28 [ 870.898412][ C0] Code: Bad RIP value. [ 870.903338][ C0] RSP: 002b:00007ffca96bd428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 870.911739][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000448e28 [ 870.919709][ C0] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 870.927690][ C0] RBP: 00000000004cd1b0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 870.935652][ C0] R10: 00007ffca96bd3e0 R11: 0000000000000246 R12: 0000000000000001 [ 870.943628][ C0] R13: 00000000006e20e0 R14: 0000000000000000 R15: 0000000000000000 [ 870.951607][ C0] Sending NMI from CPU 0 to CPUs 1: [ 870.957837][ C0] NMI backtrace for cpu 1 [ 870.957842][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 870.957849][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 870.957853][ C0] RIP: 0010:__sanitizer_cov_trace_pc+0x1a/0x50 [ 870.957865][ C0] Code: 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 00 00 8b 80 [ 870.957869][ C0] RSP: 0018:ffff8881db309a20 EFLAGS: 00000006 [ 870.957877][ C0] RAX: ffff8881da213100 RBX: ffff8881c5e74dd0 RCX: ffffffff84b9cb64 [ 870.957882][ C0] RDX: 0000000000000100 RSI: ffffffff84ba0034 RDI: ffff8881c5e74dd0 [ 870.957887][ C0] RBP: ffff8881d4e47400 R08: ffff8881da213100 R09: ffffed103a9c8e81 [ 870.957892][ C0] R10: ffffed103a9c8e80 R11: ffff8881d4e47400 R12: 0000000000000001 [ 870.957897][ C0] R13: dffffc0000000000 R14: ffffed1038bce9c5 R15: 0000000000000001 [ 870.957902][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 870.957907][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 870.957912][ C0] CR2: 00007f92ebfa0000 CR3: 00000001cdf47000 CR4: 00000000001406e0 [ 870.957917][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 870.957922][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 870.957925][ C0] Call Trace: [ 870.957927][ C0] [ 870.957931][ C0] line6_midi_receive+0x14/0x83 [ 870.957934][ C0] line6_data_received+0x35e/0x520 [ 870.957938][ C0] ? device_id_show+0x80/0x80 [ 870.957942][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 870.957945][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 870.957949][ C0] dummy_timer+0x1258/0x32ae [ 870.957952][ C0] ? dummy_udc_probe+0x930/0x930 [ 870.957956][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 870.957960][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 870.957963][ C0] call_timer_fn+0x195/0x6f0 [ 870.957966][ C0] ? dummy_udc_probe+0x930/0x930 [ 870.957970][ C0] ? msleep_interruptible+0x130/0x130 [ 870.957974][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 870.957978][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 870.957981][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 870.957985][ C0] ? dummy_udc_probe+0x930/0x930 [ 870.957989][ C0] run_timer_softirq+0x5f9/0x1500 [ 870.957992][ C0] ? add_timer+0x7a0/0x7a0 [ 870.957996][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 870.957999][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 870.958003][ C0] __do_softirq+0x21e/0x950 [ 870.958006][ C0] irq_exit+0x178/0x1a0 [ 870.958010][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 870.958013][ C0] apic_timer_interrupt+0xf/0x20 [ 870.958016][ C0] [ 870.958019][ C0] RIP: 0010:default_idle+0x28/0x300 [ 870.958031][ 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 [ 870.958034][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 870.958044][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 870.958049][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 870.958054][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 870.958059][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 870.958064][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 870.958067][ C0] ? default_idle+0x1a/0x300 [ 870.958070][ C0] do_idle+0x3e0/0x500 [ 870.958074][ C0] ? __wake_up_common+0x147/0x650 [ 870.958078][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 870.958082][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 870.958086][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 870.958089][ C0] cpu_startup_entry+0x14/0x20 [ 870.958092][ C0] start_secondary+0x2a4/0x390 [ 870.958096][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 870.958100][ C0] secondary_startup_64+0xb6/0xc0 [ 870.958107][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 871.354104][ C0] CPU: 0 PID: 1799 Comm: syz-executor421 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 871.364249][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 871.374308][ C0] Call Trace: [ 871.377622][ C0] [ 871.380523][ C0] dump_stack+0xef/0x16e [ 871.384761][ C0] panic+0x2aa/0x6e1 [ 871.388650][ C0] ? add_taint.cold+0x16/0x16 [ 871.393334][ C0] ? cpumask_next+0x3c/0x40 [ 871.397880][ C0] ? printk_safe_flush+0xd9/0x120 [ 871.402912][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 871.408364][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 871.413816][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 871.419102][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 871.424318][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 871.430288][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 871.435011][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 871.441068][ C0] hrtimer_interrupt+0x2e8/0x730 [ 871.446015][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 871.451468][ C0] apic_timer_interrupt+0xf/0x20 [ 871.456392][ C0] [ 871.459328][ C0] RIP: 0010:write_comp_data+0x0/0x70 [ 871.464611][ C0] Code: 20 48 8b 88 b8 12 00 00 8b 80 b4 12 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 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 [ 871.484211][ C0] RSP: 0018:ffff8881ce7c7a38 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 871.492978][ C0] RAX: ffff8881ce4d6200 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 871.500963][ C0] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 871.508955][ C0] RBP: ffff8881ce7c7b08 R08: ffff8881ce4d6200 R09: 0000000000000000 [ 871.516954][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 871.524919][ C0] R13: 0000000000000000 R14: ffff8881cdfc1fc0 R15: ffff8881db233dc0 [ 871.533026][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 871.538780][ C0] smp_call_function_single+0x2df/0x3a0 [ 871.544356][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 871.550883][ C0] ? generic_exec_single+0x370/0x370 [ 871.556193][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 871.562698][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 871.569540][ C0] smp_call_function_many_cond+0x25e/0x900 [ 871.575343][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 871.582405][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 871.588219][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 871.593245][ C0] tlb_flush_mmu+0x274/0x630 [ 871.597827][ C0] tlb_finish_mmu+0x93/0x420 [ 871.602408][ C0] exit_mmap+0x298/0x4d0 [ 871.606641][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 871.611569][ C0] mmput+0xce/0x3d0 [ 871.615377][ C0] do_exit+0xaa0/0x2c50 [ 871.619527][ C0] ? do_group_exit+0x2c7/0x340 [ 871.624283][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 871.629645][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 871.634492][ C0] ? do_raw_spin_lock+0x129/0x290 [ 871.639507][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 871.644702][ C0] do_group_exit+0x125/0x340 [ 871.649297][ C0] __x64_sys_exit_group+0x3a/0x50 [ 871.654315][ C0] do_syscall_64+0xb6/0x5a0 [ 871.658842][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 871.664732][ C0] RIP: 0033:0x448e28 [ 871.668712][ C0] Code: Bad RIP value. [ 871.672780][ C0] RSP: 002b:00007ffca96bd428 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 871.681188][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000448e28 [ 871.689424][ C0] RDX: 0000000000000000 RSI: 000000000000003c RDI: 0000000000000000 [ 871.697409][ C0] RBP: 00000000004cd1b0 R08: 00000000000000e7 R09: ffffffffffffffd0 [ 871.705379][ C0] R10: 00007ffca96bd3e0 R11: 0000000000000246 R12: 0000000000000001 [ 871.713343][ C0] R13: 00000000006e20e0 R14: 0000000000000000 R15: 0000000000000000 [ 872.837212][ C0] Shutting down cpus with NMI [ 872.842664][ C0] Kernel Offset: disabled [ 872.847171][ C0] Rebooting in 86400 seconds..