Warning: Permanently added '10.128.0.14' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 712.452728][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 712.542839][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 712.662695][ T94] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 712.670977][ T94] usb 1-1: config 0 has no interface number 0 [ 712.677334][ T94] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 712.686403][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 712.700141][ T94] usb 1-1: config 0 descriptor?? [ 712.750280][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 712.952675][ T94] snd_usb_pod 1-1:0.1: set_interface failed [ 712.959863][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 712.967690][ T94] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 712.975846][ T94] usb 1-1: USB disconnect, device number 2 [ 713.532596][ T94] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 713.622729][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 713.742667][ T94] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 713.750760][ T94] usb 1-1: config 0 has no interface number 0 [ 713.757022][ T94] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 713.766114][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 713.775481][ T94] usb 1-1: config 0 descriptor?? [ 713.824671][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 714.043346][ T94] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 714.701430][ T95] usb 1-1: USB disconnect, device number 3 [ 714.908133][ T1800] udc-core: couldn't find an available UDC or it's busy [ 714.915229][ T1800] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 848.862018][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 123s! [syz-executor420:1800] [ 848.870933][ C1] Modules linked in: [ 848.874845][ C1] irq event stamp: 133950 [ 848.879356][ C1] hardirqs last enabled at (133949): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 848.889528][ C1] hardirqs last disabled at (133950): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 848.899837][ C1] softirqs last enabled at (133948): [] __do_softirq+0x673/0x950 [ 848.909265][ C1] softirqs last disabled at (133941): [] irq_exit+0x178/0x1a0 [ 848.918923][ C1] CPU: 1 PID: 1800 Comm: syz-executor420 Not tainted 5.6.0-rc3-syzkaller #0 [ 848.927600][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 848.937796][ C1] RIP: 0010:write_comp_data+0x0/0x70 [ 848.943086][ C1] 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 [ 848.962697][ C1] RSP: 0018:ffff8881cda077b8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 848.971125][ C1] RAX: ffff8881ce639880 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 848.979107][ C1] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 848.987097][ C1] RBP: ffff8881cda07898 R08: ffff8881ce639880 R09: 0000000000000000 [ 848.995083][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 849.003172][ C1] R13: 0000000000000001 R14: ffff8881ce384040 R15: ffff8881db333dc0 [ 849.011161][ C1] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 849.020105][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 849.026710][ C1] CR2: 00007f8863052e4c CR3: 0000000007021000 CR4: 00000000001406e0 [ 849.034693][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 849.042685][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 849.050664][ C1] Call Trace: [ 849.054029][ C1] smp_call_function_single+0x2df/0x3a0 [ 849.059684][ C1] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 849.066485][ C1] ? generic_exec_single+0x370/0x370 [ 849.071791][ C1] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 849.078418][ C1] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 849.084319][ C1] smp_call_function_many_cond+0x25e/0x900 [ 849.090298][ C1] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 849.096823][ C1] ? native_flush_tlb_others+0x3c9/0x4b0 [ 849.102470][ C1] flush_tlb_mm_range+0x1e8/0x3e0 [ 849.107581][ C1] tlb_flush_mmu+0x274/0x630 [ 849.112193][ C1] tlb_finish_mmu+0x93/0x420 [ 849.116911][ C1] exit_mmap+0x298/0x4d0 [ 849.121166][ C1] ? __ia32_sys_munmap+0x80/0x80 [ 849.126120][ C1] mmput+0xce/0x3d0 [ 849.129944][ C1] do_exit+0xaa0/0x2c50 [ 849.134218][ C1] ? find_held_lock+0x2d/0x110 [ 849.138985][ C1] ? mm_update_next_owner+0x7a0/0x7a0 [ 849.144376][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 849.149227][ C1] do_group_exit+0x125/0x340 [ 849.153899][ C1] get_signal+0x480/0x2470 [ 849.158353][ C1] ? debug_check_no_obj_freed+0xc4/0x445 [ 849.163993][ C1] ? futex_exit_release+0x60/0x60 [ 849.169189][ C1] do_signal+0x88/0x1490 [ 849.173510][ C1] ? __kasan_slab_free+0x12e/0x160 [ 849.178752][ C1] ? raw_ioctl+0x3c5/0x1a70 [ 849.183257][ C1] ? setup_sigcontext+0x820/0x820 [ 849.188299][ C1] ? raw_ioctl+0x193/0x1a70 [ 849.192820][ C1] ? __x64_sys_futex+0x380/0x4f0 [ 849.197766][ C1] ? do_futex+0x1b90/0x1b90 [ 849.202290][ C1] exit_to_usermode_loop+0x1a2/0x200 [ 849.207581][ C1] do_syscall_64+0x4e0/0x5a0 [ 849.212199][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 849.218103][ C1] RIP: 0033:0x44a029 [ 849.222012][ C1] Code: Bad RIP value. [ 849.226084][ C1] RSP: 002b:00007f8863053d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 849.234513][ C1] RAX: fffffffffffffe00 RBX: 00000000006dbc48 RCX: 000000000044a029 [ 849.242501][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc48 [ 849.250488][ C1] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 849.258478][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 849.266485][ C1] R13: 000000000000009f R14: 000000000000b1ee R15: 00000000000000e7 [ 849.274671][ C1] Sending NMI from CPU 1 to CPUs 0: [ 849.280923][ C1] NMI backtrace for cpu 0 [ 849.280929][ C1] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc3-syzkaller #0 [ 849.280935][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 849.280939][ C1] RIP: 0010:line6_midibuf_read+0x8/0xa30 [ 849.280951][ C1] Code: fc 8b 4c 24 08 e9 6d fe ff ff 48 89 df 89 54 24 08 e8 dc fc ad fc 8b 54 24 08 e9 a7 fe ff ff 0f 1f 00 41 57 41 56 41 55 41 54 <55> 48 89 fd 53 89 d3 48 83 ec 30 48 89 74 24 10 e8 e3 53 85 fc 89 [ 849.280955][ C1] RSP: 0018:ffff8881db209a28 EFLAGS: 00000046 [ 849.280963][ C1] RAX: ffffffff8702cc40 RBX: ffffed1039b309c4 RCX: ffffffff84ba7643 [ 849.280969][ C1] RDX: 0000000000000100 RSI: ffff8881d5a8fe00 RDI: ffff8881d5a8fca0 [ 849.280974][ C1] RBP: ffff8881cd984dd0 R08: ffffffff8702cc40 R09: ffffed103ab51fc1 [ 849.280979][ C1] R10: ffffed103ab51fc0 R11: ffff8881d5a8fe00 R12: ffff8881d5a8fca0 [ 849.280984][ C1] R13: dffffc0000000000 R14: ffffed1039b309c5 R15: 0000000000000001 [ 849.280989][ C1] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 849.280994][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 849.280999][ C1] CR2: 00007fe748931000 CR3: 00000001d16ce000 CR4: 00000000001406f0 [ 849.281004][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 849.281009][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 849.281012][ C1] Call Trace: [ 849.281014][ C1] [ 849.281018][ C1] line6_data_received+0x318/0x520 [ 849.281021][ C1] ? device_id_show+0x80/0x80 [ 849.281025][ C1] __usb_hcd_giveback_urb+0x1f2/0x470 [ 849.281029][ C1] usb_hcd_giveback_urb+0x368/0x420 [ 849.281032][ C1] dummy_timer+0x1258/0x32ae [ 849.281036][ C1] ? dummy_udc_probe+0x930/0x930 [ 849.281040][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 849.281043][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 849.281047][ C1] call_timer_fn+0x195/0x6f0 [ 849.281050][ C1] ? dummy_udc_probe+0x930/0x930 [ 849.281054][ C1] ? msleep_interruptible+0x130/0x130 [ 849.281058][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 849.281062][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 849.281066][ C1] ? _raw_spin_unlock_irq+0x1f/0x30 [ 849.281070][ C1] ? dummy_udc_probe+0x930/0x930 [ 849.281073][ C1] run_timer_softirq+0x5f9/0x1500 [ 849.281077][ C1] ? add_timer+0x7a0/0x7a0 [ 849.281080][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 849.281084][ C1] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 849.281088][ C1] __do_softirq+0x21e/0x950 [ 849.281091][ C1] irq_exit+0x178/0x1a0 [ 849.281095][ C1] smp_apic_timer_interrupt+0x141/0x540 [ 849.281098][ C1] apic_timer_interrupt+0xf/0x20 [ 849.281101][ C1] [ 849.281104][ C1] RIP: 0010:default_idle+0x28/0x300 [ 849.281116][ C1] 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 [ 849.281120][ C1] RSP: 0018:ffffffff87007d80 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 849.281129][ C1] RAX: 0000000000000007 RBX: ffffffff8702cc40 RCX: 0000000000000000 [ 849.281134][ C1] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffffffff8702d48c [ 849.281139][ C1] RBP: fffffbfff0e05988 R08: ffffffff8702cc40 R09: 0000000000000000 [ 849.281144][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 849.281168][ C1] R13: 0000000000000000 R14: ffffffff87e60000 R15: 0000000000000000 [ 849.281171][ C1] do_idle+0x3e0/0x500 [ 849.281175][ C1] ? arch_cpu_idle_exit+0x40/0x40 [ 849.281178][ C1] ? schedule+0xe1/0x2b0 [ 849.281182][ C1] cpu_startup_entry+0x14/0x20 [ 849.281185][ C1] start_kernel+0xde3/0xe27 [ 849.281188][ C1] ? mem_encrypt_init+0x5/0x5 [ 849.281191][ C1] ? x86_family+0x3d/0x50 [ 849.281195][ C1] ? load_ucode_bsp+0x23d/0x27d [ 849.281199][ C1] secondary_startup_64+0xb6/0xc0 [ 849.281208][ C1] Kernel panic - not syncing: softlockup: hung tasks [ 849.660801][ C1] CPU: 1 PID: 1800 Comm: syz-executor420 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 849.670870][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 849.680933][ C1] Call Trace: [ 849.684218][ C1] [ 849.687072][ C1] dump_stack+0xef/0x16e [ 849.691345][ C1] panic+0x2aa/0x6e1 [ 849.695249][ C1] ? add_taint.cold+0x16/0x16 [ 849.699948][ C1] ? cpumask_next+0x3c/0x40 [ 849.704555][ C1] ? printk_safe_flush+0xd9/0x120 [ 849.709601][ C1] ? watchdog_timer_fn.cold+0xee/0x134 [ 849.715172][ C1] ? watchdog_timer_fn.cold+0xe5/0x134 [ 849.720645][ C1] watchdog_timer_fn.cold+0xff/0x134 [ 849.725931][ C1] __hrtimer_run_queues+0x32c/0xd20 [ 849.732539][ C1] ? lockup_detector_update_enable+0x90/0x90 [ 849.738633][ C1] ? hrtimer_init+0x2e0/0x2e0 [ 849.743404][ C1] ? ktime_get_update_offsets_now+0x24c/0x320 [ 849.749495][ C1] hrtimer_interrupt+0x2e8/0x730 [ 849.754456][ C1] smp_apic_timer_interrupt+0xfe/0x540 [ 849.759919][ C1] apic_timer_interrupt+0xf/0x20 [ 849.764860][ C1] [ 849.767814][ C1] RIP: 0010:write_comp_data+0x0/0x70 [ 849.773233][ C1] 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 [ 849.793020][ C1] RSP: 0018:ffff8881cda077b8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 849.801449][ C1] RAX: ffff8881ce639880 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 849.809438][ C1] RDX: 0000000000000001 RSI: 0000000000000000 RDI: 0000000000000005 [ 849.817521][ C1] RBP: ffff8881cda07898 R08: ffff8881ce639880 R09: 0000000000000000 [ 849.825502][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 849.833477][ C1] R13: 0000000000000001 R14: ffff8881ce384040 R15: ffff8881db333dc0 [ 849.841495][ C1] ? smp_call_function_single+0x2df/0x3a0 [ 849.848390][ C1] smp_call_function_single+0x2df/0x3a0 [ 849.853956][ C1] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 849.860474][ C1] ? generic_exec_single+0x370/0x370 [ 849.865760][ C1] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 849.872275][ C1] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 849.878188][ C1] smp_call_function_many_cond+0x25e/0x900 [ 849.884089][ C1] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 849.890627][ C1] ? native_flush_tlb_others+0x3c9/0x4b0 [ 849.896272][ C1] flush_tlb_mm_range+0x1e8/0x3e0 [ 849.901303][ C1] tlb_flush_mmu+0x274/0x630 [ 849.905898][ C1] tlb_finish_mmu+0x93/0x420 [ 849.910508][ C1] exit_mmap+0x298/0x4d0 [ 849.914765][ C1] ? __ia32_sys_munmap+0x80/0x80 [ 849.919817][ C1] mmput+0xce/0x3d0 [ 849.923659][ C1] do_exit+0xaa0/0x2c50 [ 849.927811][ C1] ? find_held_lock+0x2d/0x110 [ 849.932598][ C1] ? mm_update_next_owner+0x7a0/0x7a0 [ 849.937986][ C1] ? lock_downgrade+0x6e0/0x6e0 [ 849.942862][ C1] do_group_exit+0x125/0x340 [ 849.947471][ C1] get_signal+0x480/0x2470 [ 849.951906][ C1] ? debug_check_no_obj_freed+0xc4/0x445 [ 849.957552][ C1] ? futex_exit_release+0x60/0x60 [ 849.962757][ C1] do_signal+0x88/0x1490 [ 849.967016][ C1] ? __kasan_slab_free+0x12e/0x160 [ 849.972134][ C1] ? raw_ioctl+0x3c5/0x1a70 [ 849.976648][ C1] ? setup_sigcontext+0x820/0x820 [ 849.981688][ C1] ? raw_ioctl+0x193/0x1a70 [ 849.986206][ C1] ? __x64_sys_futex+0x380/0x4f0 [ 849.991156][ C1] ? do_futex+0x1b90/0x1b90 [ 849.995679][ C1] exit_to_usermode_loop+0x1a2/0x200 [ 850.000990][ C1] do_syscall_64+0x4e0/0x5a0 [ 850.005590][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 850.011495][ C1] RIP: 0033:0x44a029 [ 850.015496][ C1] Code: Bad RIP value. [ 850.019562][ C1] RSP: 002b:00007f8863053d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 850.028089][ C1] RAX: fffffffffffffe00 RBX: 00000000006dbc48 RCX: 000000000044a029 [ 850.036080][ C1] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc48 [ 850.044157][ C1] RBP: 00000000006dbc40 R08: 0000000000000000 R09: 0000000000000000 [ 850.052150][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc4c [ 850.060188][ C1] R13: 000000000000009f R14: 000000000000b1ee R15: 00000000000000e7 [ 851.172747][ C1] Shutting down cpus with NMI [ 851.178242][ C1] Kernel Offset: disabled [ 851.182641][ C1] Rebooting in 86400 seconds..