Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 896.304250][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 896.394435][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 896.514704][ T95] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 896.522850][ T95] usb 1-1: config 0 has no interface number 0 [ 896.530376][ T95] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 896.539892][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 896.553615][ T95] usb 1-1: config 0 descriptor?? [ 896.601164][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 896.804159][ T95] snd_usb_pod 1-1:0.1: set_interface failed [ 896.810290][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now disconnected [ 896.818574][ T95] snd_usb_pod: probe of 1-1:0.1 failed with error -71 [ 896.826956][ T95] usb 1-1: USB disconnect, device number 2 [ 897.394642][ T95] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 897.484190][ T95] usb 1-1: Using ep0 maxpacket: 32 [ 897.604161][ T95] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 897.612194][ T95] usb 1-1: config 0 has no interface number 0 [ 897.618407][ T95] usb 1-1: New USB device found, idVendor=0e41, idProduct=5051, bcdDevice=d5.e8 [ 897.627853][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 897.637262][ T95] usb 1-1: config 0 descriptor?? [ 897.676557][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD found [ 897.894924][ T95] snd_usb_pod 1-1:0.1: Line 6 Pocket POD now attached [ 1046.622111][ C0] watchdog: BUG: soft lockup - CPU#0 stuck for 123s! [syz-executor237:1794] [ 1046.630993][ C0] Modules linked in: [ 1046.634889][ C0] irq event stamp: 28480 [ 1046.639420][ C0] hardirqs last enabled at (28479): [] trace_hardirqs_on_thunk+0x1a/0x1c [ 1046.649485][ C0] hardirqs last disabled at (28480): [] trace_hardirqs_off_thunk+0x1a/0x1c [ 1046.659673][ C0] softirqs last enabled at (23962): [] __do_softirq+0x673/0x950 [ 1046.668999][ C0] softirqs last disabled at (23945): [] irq_exit+0x178/0x1a0 [ 1046.678636][ C0] CPU: 0 PID: 1794 Comm: syz-executor237 Not tainted 5.6.0-rc3-syzkaller #0 [ 1046.687409][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1046.698853][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 1046.705204][ 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 [ 1046.728461][ C0] RSP: 0018:ffff8881cda2f7c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1046.737001][ C0] RAX: ffff8881cf1d9880 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 1046.745004][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 1046.753130][ C0] RBP: ffff8881cda2f898 R08: ffff8881cf1d9880 R09: 0000000000000000 [ 1046.761133][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1046.769228][ C0] R13: 0000000000000000 R14: ffff8881ce38c040 R15: ffff8881db233dc0 [ 1046.777229][ C0] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 1046.786168][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1046.792912][ C0] CR2: ffffffffff600400 CR3: 0000000007021000 CR4: 00000000001406f0 [ 1046.800916][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1046.808897][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1046.816888][ C0] Call Trace: [ 1046.820490][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1046.827010][ C0] ? generic_exec_single+0x370/0x370 [ 1046.832313][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1046.838934][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 1046.845006][ C0] smp_call_function_many_cond+0x25e/0x900 [ 1046.850822][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1046.857322][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 1046.862980][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 1046.868091][ C0] tlb_flush_mmu+0x274/0x630 [ 1046.872680][ C0] tlb_finish_mmu+0x93/0x420 [ 1046.877268][ C0] exit_mmap+0x298/0x4d0 [ 1046.881509][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 1046.886447][ C0] mmput+0xce/0x3d0 [ 1046.890252][ C0] do_exit+0xaa0/0x2c50 [ 1046.894465][ C0] ? find_held_lock+0x2d/0x110 [ 1046.899227][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 1046.904597][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 1046.909443][ C0] do_group_exit+0x125/0x340 [ 1046.914064][ C0] get_signal+0x480/0x2470 [ 1046.918530][ C0] ? debug_check_no_obj_freed+0xc4/0x445 [ 1046.924285][ C0] do_signal+0x88/0x1490 [ 1046.928570][ C0] ? __kasan_slab_free+0x12e/0x160 [ 1046.933742][ C0] ? raw_ioctl+0x3c5/0x1a70 [ 1046.938245][ C0] ? setup_sigcontext+0x820/0x820 [ 1046.943265][ C0] ? raw_ioctl+0x193/0x1a70 [ 1046.947795][ C0] ? ksys_dup3+0x3c0/0x3c0 [ 1046.952209][ C0] ? raw_open+0x470/0x470 [ 1046.956534][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 1046.961819][ C0] do_syscall_64+0x4e0/0x5a0 [ 1046.966409][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1046.972296][ C0] RIP: 0033:0x449f47 [ 1046.976267][ C0] Code: Bad RIP value. [ 1046.980329][ C0] RSP: 002b:00007f6ae5478968 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1046.988732][ C0] RAX: 0000000000000040 RBX: 0000000000000003 RCX: 0000000000449f47 [ 1046.996698][ C0] RDX: 00007f6ae5478980 RSI: 0000000040085507 RDI: 0000000000000003 [ 1047.004665][ C0] RBP: 00000000006dbc20 R08: 278ed5da75811305 R09: 05d1c0017c8b2832 [ 1047.012631][ C0] R10: 767b56ef744e0536 R11: 0000000000000246 R12: 00000000006dbc2c [ 1047.020619][ C0] R13: 0000000000000044 R14: 0000000000004599 R15: 00000000000000e7 [ 1047.028590][ C0] Sending NMI from CPU 0 to CPUs 1: [ 1047.037272][ C0] NMI backtrace for cpu 1 [ 1047.037278][ C0] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.6.0-rc3-syzkaller #0 [ 1047.037286][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1047.037290][ C0] RIP: 0010:memcpy+0xd/0x50 [ 1047.037303][ C0] Code: 00 00 4c 89 e2 4c 89 ee 48 89 ef 5d 41 5c 41 5d e9 f8 82 25 04 0f 1f 84 00 00 00 00 00 41 55 49 89 f5 41 54 49 89 d4 31 d2 55 <48> 8b 4c 24 18 48 89 fd 4c 89 e6 4c 89 ef e8 e0 22 00 00 48 8b 4c [ 1047.037308][ C0] RSP: 0018:ffff8881db3099c8 EFLAGS: 00000046 [ 1047.037317][ C0] RAX: ffff8881da213100 RBX: 0000000000000000 RCX: ffffffff84ba0d63 [ 1047.037323][ C0] RDX: 0000000000000000 RSI: ffff8881ce057004 RDI: ffff8881d97e7c01 [ 1047.037329][ C0] RBP: ffff8881d97e7aa0 R08: ffff8881da213100 R09: ffffed103b2fcf81 [ 1047.037335][ C0] R10: ffffed103b2fcf80 R11: ffff8881d97e7c00 R12: 0000000000000000 [ 1047.037342][ C0] R13: ffff8881ce057004 R14: 00000000000003fc R15: 0000000000000001 [ 1047.037348][ C0] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 1047.037353][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1047.037359][ C0] CR2: 00007fd12ceb3000 CR3: 00000001d0cf0000 CR4: 00000000001406e0 [ 1047.037365][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1047.037371][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1047.037374][ C0] Call Trace: [ 1047.037377][ C0] [ 1047.037382][ C0] line6_midibuf_read+0x492/0xa30 [ 1047.037386][ C0] line6_data_received+0x318/0x520 [ 1047.037390][ C0] ? device_id_show+0x80/0x80 [ 1047.037394][ C0] __usb_hcd_giveback_urb+0x1f2/0x470 [ 1047.037399][ C0] usb_hcd_giveback_urb+0x368/0x420 [ 1047.037403][ C0] dummy_timer+0x1258/0x32ae [ 1047.037407][ C0] ? dummy_udc_probe+0x930/0x930 [ 1047.037411][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1047.037415][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1047.037419][ C0] call_timer_fn+0x195/0x6f0 [ 1047.037423][ C0] ? dummy_udc_probe+0x930/0x930 [ 1047.037428][ C0] ? msleep_interruptible+0x130/0x130 [ 1047.037432][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1047.037437][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1047.037441][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 1047.037445][ C0] ? dummy_udc_probe+0x930/0x930 [ 1047.037449][ C0] run_timer_softirq+0x5f9/0x1500 [ 1047.037453][ C0] ? add_timer+0x7a0/0x7a0 [ 1047.037458][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 1047.037462][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 1047.037466][ C0] __do_softirq+0x21e/0x950 [ 1047.037470][ C0] irq_exit+0x178/0x1a0 [ 1047.037474][ C0] smp_apic_timer_interrupt+0x141/0x540 [ 1047.037478][ C0] apic_timer_interrupt+0xf/0x20 [ 1047.037481][ C0] [ 1047.037486][ C0] RIP: 0010:default_idle+0x28/0x300 [ 1047.037499][ 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 [ 1047.037503][ C0] RSP: 0018:ffff8881da22fda8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 1047.037514][ C0] RAX: 0000000000000007 RBX: ffff8881da213100 RCX: 0000000000000000 [ 1047.037520][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881da21394c [ 1047.037526][ C0] RBP: ffffed103b442620 R08: ffff8881da213100 R09: 0000000000000000 [ 1047.037532][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 1047.037538][ C0] R13: 0000000000000001 R14: ffffffff87e60000 R15: 0000000000000000 [ 1047.037542][ C0] ? default_idle+0x1a/0x300 [ 1047.037545][ C0] do_idle+0x3e0/0x500 [ 1047.037549][ C0] ? __wake_up_common+0x147/0x650 [ 1047.037554][ C0] ? arch_cpu_idle_exit+0x40/0x40 [ 1047.037558][ C0] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 1047.037563][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 1047.037567][ C0] cpu_startup_entry+0x14/0x20 [ 1047.037571][ C0] start_secondary+0x2a4/0x390 [ 1047.037575][ C0] ? set_cpu_sibling_map+0x1e90/0x1e90 [ 1047.037580][ C0] secondary_startup_64+0xb6/0xc0 [ 1047.037589][ C0] Kernel panic - not syncing: softlockup: hung tasks [ 1047.437064][ C0] CPU: 0 PID: 1794 Comm: syz-executor237 Tainted: G L 5.6.0-rc3-syzkaller #0 [ 1047.447298][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1047.457405][ C0] Call Trace: [ 1047.460699][ C0] [ 1047.463619][ C0] dump_stack+0xef/0x16e [ 1047.467867][ C0] panic+0x2aa/0x6e1 [ 1047.471790][ C0] ? add_taint.cold+0x16/0x16 [ 1047.476479][ C0] ? cpumask_next+0x3c/0x40 [ 1047.481047][ C0] ? printk_safe_flush+0xd9/0x120 [ 1047.486145][ C0] ? watchdog_timer_fn.cold+0xee/0x134 [ 1047.491651][ C0] ? watchdog_timer_fn.cold+0xe5/0x134 [ 1047.497116][ C0] watchdog_timer_fn.cold+0xff/0x134 [ 1047.502421][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 1047.507637][ C0] ? lockup_detector_update_enable+0x90/0x90 [ 1047.513615][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 1047.518717][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 1047.524782][ C0] hrtimer_interrupt+0x2e8/0x730 [ 1047.529740][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 1047.535221][ C0] apic_timer_interrupt+0xf/0x20 [ 1047.540270][ C0] [ 1047.543212][ C0] RIP: 0010:smp_call_function_single+0x2cf/0x3a0 [ 1047.549547][ 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 [ 1047.569155][ C0] RSP: 0018:ffff8881cda2f7c0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 1047.577656][ C0] RAX: ffff8881cf1d9880 RBX: 0000000000000001 RCX: ffffffff8134f89f [ 1047.585644][ C0] RDX: 0000000000000000 RSI: ffffffff8134f88d RDI: 0000000000000005 [ 1047.593621][ C0] RBP: ffff8881cda2f898 R08: ffff8881cf1d9880 R09: 0000000000000000 [ 1047.601615][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 1047.609592][ C0] R13: 0000000000000000 R14: ffff8881ce38c040 R15: ffff8881db233dc0 [ 1047.617862][ C0] ? smp_call_function_single+0x2df/0x3a0 [ 1047.623588][ C0] ? smp_call_function_single+0x2cd/0x3a0 [ 1047.629338][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1047.635867][ C0] ? generic_exec_single+0x370/0x370 [ 1047.641172][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1047.647683][ C0] ? _find_next_bit.constprop.0+0x1a3/0x200 [ 1047.653584][ C0] smp_call_function_many_cond+0x25e/0x900 [ 1047.659445][ C0] ? flush_tlb_func_common.constprop.0+0x8a0/0x8a0 [ 1047.665948][ C0] ? native_flush_tlb_others+0x3c9/0x4b0 [ 1047.671583][ C0] flush_tlb_mm_range+0x1e8/0x3e0 [ 1047.676609][ C0] tlb_flush_mmu+0x274/0x630 [ 1047.681411][ C0] tlb_finish_mmu+0x93/0x420 [ 1047.686093][ C0] exit_mmap+0x298/0x4d0 [ 1047.690346][ C0] ? __ia32_sys_munmap+0x80/0x80 [ 1047.695846][ C0] mmput+0xce/0x3d0 [ 1047.699654][ C0] do_exit+0xaa0/0x2c50 [ 1047.703835][ C0] ? find_held_lock+0x2d/0x110 [ 1047.708606][ C0] ? mm_update_next_owner+0x7a0/0x7a0 [ 1047.714069][ C0] ? lock_downgrade+0x6e0/0x6e0 [ 1047.718933][ C0] do_group_exit+0x125/0x340 [ 1047.726214][ C0] get_signal+0x480/0x2470 [ 1047.730637][ C0] ? debug_check_no_obj_freed+0xc4/0x445 [ 1047.736287][ C0] do_signal+0x88/0x1490 [ 1047.740548][ C0] ? __kasan_slab_free+0x12e/0x160 [ 1047.745678][ C0] ? raw_ioctl+0x3c5/0x1a70 [ 1047.750201][ C0] ? setup_sigcontext+0x820/0x820 [ 1047.755223][ C0] ? raw_ioctl+0x193/0x1a70 [ 1047.759745][ C0] ? ksys_dup3+0x3c0/0x3c0 [ 1047.764177][ C0] ? raw_open+0x470/0x470 [ 1047.768562][ C0] exit_to_usermode_loop+0x1a2/0x200 [ 1047.773870][ C0] do_syscall_64+0x4e0/0x5a0 [ 1047.778552][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1047.784581][ C0] RIP: 0033:0x449f47 [ 1047.788486][ C0] Code: Bad RIP value. [ 1047.792658][ C0] RSP: 002b:00007f6ae5478968 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 1047.801101][ C0] RAX: 0000000000000040 RBX: 0000000000000003 RCX: 0000000000449f47 [ 1047.809083][ C0] RDX: 00007f6ae5478980 RSI: 0000000040085507 RDI: 0000000000000003 [ 1047.817406][ C0] RBP: 00000000006dbc20 R08: 278ed5da75811305 R09: 05d1c0017c8b2832 [ 1047.825595][ C0] R10: 767b56ef744e0536 R11: 0000000000000246 R12: 00000000006dbc2c [ 1047.833576][ C0] R13: 0000000000000044 R14: 0000000000004599 R15: 00000000000000e7 [ 1048.953223][ C0] Shutting down cpus with NMI [ 1048.958512][ C0] Kernel Offset: disabled [ 1048.963043][ C0] Rebooting in 86400 seconds..