Warning: Permanently added '10.128.1.32' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 408.245552][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 408.335719][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 408.455506][ T95] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 408.463658][ T95] usb 1-1: config 0 has no interface number 0 [ 408.470037][ T95] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 408.479113][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 408.492813][ T95] usb 1-1: config 0 descriptor?? [ 408.543006][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 408.746324][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 409.401800][ T1800] udc-core: couldn't find an available UDC or it's busy [ 409.408869][ T1800] misc raw-gadget: fail, usb_gadget_probe_driver returned -16 [ 563.073854][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor526:1800] [ 563.082674][ C0] Modules linked in: [ 563.086560][ C0] irq event stamp: 31148 [ 563.090880][ C0] hardirqs last enabled at (31147): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 563.100928][ C0] hardirqs last disabled at (31148): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 563.111180][ C0] softirqs last enabled at (27344): [] __do_softirq+0x673/0x950 [ 563.120485][ C0] softirqs last disabled at (27327): [] irq_exit+0x178/0x1a0 [ 563.130041][ C0] CPU: 0 PID: 1800 Comm: syz-executor526 Not tainted 5.6.0-rc3-syzkaller #0 [ 563.139396][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 563.149594][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 563.155937][ 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 [ 563.175531][ C0] RSP: 0018:ffff8881cd68f7c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 563.183932][ C0] RAX: ffff8881cd964980 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 563.191893][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 563.199853][ C0] RBP: ffff8881cd68f898 R08: ffff8881cd964980 R09: 0000000000000000 [ 563.207812][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 563.215784][ C0] R13: 0000000000000000 R14: ffff8881cef8edc0 R15: ffff8881db233dc0 [ 563.223777][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 563.232704][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 563.239285][ C0] CR2: 00007fd3c9491e5c CR3: 0000000007021000 CR4: 00000000001406f0 [ 563.247248][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 563.255230][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 563.263187][ C0] Call Trace: [ 563.266571][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 563.273081][ C0] ? generic_exec_single+0x370/0x370 [ 563.278380][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 563.284997][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 563.290895][ C0] smp_call_function_many_cond+0x25e/0x900 [ 563.296702][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 563.303432][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 563.309063][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 563.314165][ C0] tlb_flush_mmu+0x274/0x630 [ 563.318763][ C0] tlb_finish_mmu+0x93/0x420 [ 563.323348][ C0] exit_mmap+0x298/0x4d0 [ 563.327581][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 563.332513][ C0] mmput+0xce/0x3d0 [ 563.336330][ C0] do_exit+0xaa0/0x2c50 [ 563.340534][ C0] ? find_held_lock+0x2d/0x110 [ 563.345289][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 563.350664][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 563.355507][ C0] do_group_exit+0x125/0x340 [ 563.360122][ C0] get_signal+0x480/0x2470 [ 563.364527][ C0] ? futex_exit_release+0x60/0x60 [ 563.369569][ C0] do_signal+0x88/0x1490 [ 563.373804][ C0] ? _raw_spin_unlock_irqrestore+0x3b/0x40 [ 563.381001][ C0] ? setup_sigcontext+0x820/0x820 [ 563.386087][ C0] ? raw_ioctl+0x193/0x1a70 [ 563.390579][ C0] ? __x64_sys_futex+0x380/0x4f0 [ 563.395503][ C0] ? do_futex+0x1b90/0x1b90 [ 563.399995][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 563.405285][ C0] do_syscall_64+0x4e0/0x5a0 [ 563.409888][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 563.415785][ C0] RIP: 0033:0x44a029 [ 563.419748][ C0] Code: Bad RIP value. [ 563.423814][ C0] RSP: 002b:00007fd3c9492d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 563.432228][ C0] RAX: fffffffffffffe00 RBX: 00000000006dbc38 RCX: 000000000044a029 [ 563.440193][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc38 [ 563.448167][ C0] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 563.456153][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c [ 563.464123][ C0] R13: 0000000020000380 R14: 00000000004aeab8 R15: 00000000000000e7 [ 563.472091][ C0] Sending NMI from CPU 0 to CPUs 1: [ 563.478324][ C0] NMI backtrace for cpu 1 [ 563.478330][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 563.478336][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 563.478340][ C0] RIP: 0010:line6_midibuf_read+0x492/0xa30 [ 563.478351][ C0] Code: fc 44 89 f6 89 df e8 7d 50 85 fc 44 39 f3 0f 8d b4 02 00 00 e8 7f 4f 85 fc 48 8b 74 24 18 48 63 d3 48 8b 3c 24 e8 fe d2 ad fc <01> 5d 10 e8 66 4f 85 fc 31 ff 44 89 fe e8 cc 50 85 fc 45 85 ff 74 [ 563.478355][ C0] RSP: 0018:ffff8881db3099e8 EFLAGS: 00000046 [ 563.478363][ C0] RAX: ffff8881d4edda01 RBX: 0000000000000000 RCX: 0000000000000000 [ 563.478368][ C0] RDX: 0000000000000000 RSI: ffff8881cd9d600f RDI: ffff8881d4edda01 [ 563.478373][ C0] RBP: ffff8881d4edd8a0 R08: ffff8881da213100 R09: ffffed103a9dbb41 [ 563.478379][ C0] R10: ffffed103a9dbb40 R11: ffff8881d4edda00 R12: 0000000000000001 [ 563.478383][ C0] R13: 000000000000000f R14: 00000000000003f1 R15: 0000000000000001 [ 563.478389][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 563.478393][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 563.478398][ C0] CR2: 00007f7667e44000 CR3: 00000001c5e69000 CR4: 00000000001406e0 [ 563.478403][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 563.478408][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 563.478411][ C0] Call Trace: [ 563.478413][ C0] [ 563.478417][ C0] line6_data_received+0x318/0x520 [ 563.478421][ C0] ? device_id_show+0x80/0x80 [ 563.478424][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 563.478428][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 563.478431][ C0] dummy_timer+0x1258/0x32ae [ 563.478435][ C0] ? dummy_udc_probe+0x930/0x930 [ 563.478439][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 563.478442][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 563.478446][ C0] call_timer_fn+0x195/0x6f0 [ 563.478449][ C0] ? dummy_udc_probe+0x930/0x930 [ 563.478453][ C0] ? msleep_interruptible+0x130/0x130 [ 563.478457][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 563.478460][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 563.478464][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 563.478467][ C0] ? dummy_udc_probe+0x930/0x930 [ 563.478471][ C0] run_timer_softirq+0x5f9/0x1500 [ 563.478474][ C0] ? add_timer+0x7a0/0x7a0 [ 563.478478][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 563.478482][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 563.478485][ C0] __do_softirq+0x21e/0x950 [ 563.478488][ C0] irq_exit+0x178/0x1a0 [ 563.478492][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 563.478495][ C0] apic_timer_interrupt+0xf/0x20 [ 563.478498][ C0] [ 563.478501][ C0] RIP: 0010:default_idle+0x28/0x300 [ 563.478513][ 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 [ 563.478516][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 563.478525][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 563.478530][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 563.478535][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 563.478540][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 563.478546][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 563.478549][ C0] ? default_idle+0x1a/0x300 [ 563.478552][ C0] do_idle+0x3e0/0x500 [ 563.478556][ C0] ? __wake_up_common+0x147/0x650 [ 563.478559][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 563.478563][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 563.478567][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 563.478570][ C0] cpu_startup_entry+0x14/0x20 [ 563.478573][ C0] start_secondary+0x2a4/0x390 [ 563.478577][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 563.478581][ C0] secondary_startup_64+0xb6/0xc0 [ 563.478588][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 563.870340][ C0] CPU: 0 PID: 1800 Comm: syz-executor526 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 563.880395][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 563.890447][ C0] Call Trace: [ 563.893724][ C0] [ 563.896653][ C0] dump_stack+0xef/0x16e [ 563.900885][ C0] panic+0x2aa/0x6e1 [ 563.904771][ C0] ? add_taint.cold+0x16/0x16 [ 563.909440][ C0] ? cpumask_next+0x3c/0x40 [ 563.913975][ C0] ? printk_safe_flush+0xd9/0x120 [ 563.919052][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 563.924502][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 563.930384][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 563.935656][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 563.940846][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 563.946813][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 563.951516][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 563.957570][ C0] hrtimer_interrupt+0x2e8/0x730 [ 563.962501][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 563.967948][ C0] apic_timer_interrupt+0xf/0x20 [ 563.972866][ C0] [ 563.975821][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 563.982572][ 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 [ 564.002162][ C0] RSP: 0018:ffff8881cd68f7c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 564.010559][ C0] RAX: ffff8881cd964980 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 564.018518][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 564.028559][ C0] RBP: ffff8881cd68f898 R08: ffff8881cd964980 R09: 0000000000000000 [ 564.036518][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 564.044479][ C0] R13: 0000000000000000 R14: ffff8881cef8edc0 R15: ffff8881db233dc0 [ 564.052446][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 564.058155][ C0] ? smp_call_function_single+0x2cd/0x3a0 [ 564.063988][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 564.070485][ C0] ? generic_exec_single+0x370/0x370 [ 564.075773][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 564.082281][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 564.088170][ C0] smp_call_function_many_cond+0x25e/0x900 [ 564.093973][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 564.100466][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 564.106089][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 564.111134][ C0] tlb_flush_mmu+0x274/0x630 [ 564.115715][ C0] tlb_finish_mmu+0x93/0x420 [ 564.120312][ C0] exit_mmap+0x298/0x4d0 [ 564.124546][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 564.129562][ C0] mmput+0xce/0x3d0 [ 564.133363][ C0] do_exit+0xaa0/0x2c50 [ 564.137509][ C0] ? find_held_lock+0x2d/0x110 [ 564.142260][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 564.147620][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 564.152461][ C0] do_group_exit+0x125/0x340 [ 564.157038][ C0] get_signal+0x480/0x2470 [ 564.161444][ C0] ? futex_exit_release+0x60/0x60 [ 564.166455][ C0] do_signal+0x88/0x1490 [ 564.170689][ C0] ? _raw_spin_unlock_irqrestore+0x3b/0x40 [ 564.176482][ C0] ? setup_sigcontext+0x820/0x820 [ 564.181495][ C0] ? raw_ioctl+0x193/0x1a70 [ 564.185989][ C0] ? __x64_sys_futex+0x380/0x4f0 [ 564.190921][ C0] ? do_futex+0x1b90/0x1b90 [ 564.195411][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 564.200706][ C0] do_syscall_64+0x4e0/0x5a0 [ 564.205301][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 564.211218][ C0] RIP: 0033:0x44a029 [ 564.215128][ C0] Code: Bad RIP value. [ 564.219195][ C0] RSP: 002b:00007fd3c9492d98 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 564.227612][ C0] RAX: fffffffffffffe00 RBX: 00000000006dbc38 RCX: 000000000044a029 [ 564.235576][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00000000006dbc38 [ 564.243555][ C0] RBP: 00000000006dbc30 R08: 0000000000000000 R09: 0000000000000000 [ 564.251520][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000006dbc3c [ 564.259490][ C0] R13: 0000000020000380 R14: 00000000004aeab8 R15: 00000000000000e7 [ 565.362388][ C0] Shutting down cpus with NMI [ 565.367913][ C0] Kernel Offset: disabled [ 565.372303][ C0] Rebooting in 86400 seconds..