[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 14.014007][ T1661] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 19.377623][ C1] random: crng init done Warning: Permanently added '10.128.0.110' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 84.025119][ T83] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 84.025126][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 84.040345][ T102] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 84.047838][ T5] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 84.055551][ T1728] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 84.063054][ T1729] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 84.415227][ T83] usb 6-1: config 0 has an invalid interface number: 1 but max is 0 [ 84.415234][ T1728] usb 2-1: config 0 has an invalid interface number: 1 but max is 0 [ 84.415274][ T83] usb 6-1: config 0 has no interface number 0 [ 84.423308][ T1728] usb 2-1: config 0 has no interface number 0 [ 84.431606][ T83] usb 6-1: New USB device found, idVendor=0af0, idProduct=7071, bcdDevice=d3.eb [ 84.437554][ T5] usb 5-1: config 0 has an invalid interface number: 1 but max is 0 [ 84.443582][ T83] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.452618][ T5] usb 5-1: config 0 has no interface number 0 [ 84.466188][ T83] usb 6-1: config 0 descriptor?? [ 84.468618][ T102] usb 4-1: config 0 has an invalid interface number: 1 but max is 0 [ 84.487574][ T102] usb 4-1: config 0 has no interface number 0 [ 84.493643][ T1729] usb 3-1: config 0 has an invalid interface number: 1 but max is 0 [ 84.501661][ T1729] usb 3-1: config 0 has no interface number 0 [ 84.507773][ T12] usb 1-1: config 0 has an invalid interface number: 1 but max is 0 [ 84.515787][ T12] usb 1-1: config 0 has no interface number 0 [ 84.520505][ T83] hso 6-1:0.1: Failed to find BULK IN ep [ 84.521889][ T12] usb 1-1: New USB device found, idVendor=0af0, idProduct=7071, bcdDevice=d3.eb [ 84.521903][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.522416][ T1729] usb 3-1: New USB device found, idVendor=0af0, idProduct=7071, bcdDevice=d3.eb [ 84.553603][ T1729] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.561910][ T12] usb 1-1: config 0 descriptor?? [ 84.567042][ T1728] usb 2-1: New USB device found, idVendor=0af0, idProduct=7071, bcdDevice=d3.eb [ 84.576093][ T1728] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.584102][ T102] usb 4-1: New USB device found, idVendor=0af0, idProduct=7071, bcdDevice=d3.eb [ 84.593223][ T102] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.601393][ T5] usb 5-1: New USB device found, idVendor=0af0, idProduct=7071, bcdDevice=d3.eb [ 84.610739][ T5] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 84.620315][ T12] hso 1-1:0.1: Failed to find BULK IN ep [ 84.627081][ T1728] usb 2-1: config 0 descriptor?? [ 84.637748][ T102] usb 4-1: config 0 descriptor?? [ 84.643112][ T5] usb 5-1: config 0 descriptor?? [ 84.648698][ T1729] usb 3-1: config 0 descriptor?? [ 84.666597][ T1728] hso 2-1:0.1: Failed to find BULK IN ep [ 84.677218][ T102] hso 4-1:0.1: Failed to find BULK IN ep [ 84.689136][ T5] hso 5-1:0.1: Failed to find BULK IN ep [ 84.696681][ T1729] sysfs: cannot create duplicate filename '/class/tty/ttyHS0' [ 84.704146][ T1729] CPU: 0 PID: 1729 Comm: kworker/0:4 Not tainted 5.3.0-rc7+ #0 [ 84.711670][ T1729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 84.717082][ T83] usb 6-1: USB disconnect, device number 2 [ 84.721710][ T1729] Workqueue: usb_hub_wq hub_event [ 84.721718][ T1729] Call Trace: [ 84.721734][ T1729] dump_stack+0xca/0x13e [ 84.721747][ T1729] sysfs_warn_dup.cold+0x1c/0x29 [ 84.721759][ T1729] sysfs_do_create_link_sd.isra.0+0x10f/0x130 [ 84.721768][ T1729] sysfs_create_link+0x61/0xc0 [ 84.721783][ T1729] device_add+0x788/0x16f0 [ 84.760072][ T1729] ? uevent_store+0x50/0x50 [ 84.764563][ T1729] ? __init_waitqueue_head+0x31/0x90 [ 84.769822][ T1729] tty_register_device_attr+0x341/0x6f0 [ 84.775343][ T1729] ? hung_up_tty_compat_ioctl+0x40/0x40 [ 84.780861][ T1729] ? mark_held_locks+0x9f/0xe0 [ 84.785600][ T1729] ? tty_port_link_device+0x59/0xc0 [ 84.790777][ T1729] hso_serial_common_create+0x113/0x710 [ 84.796297][ T1729] ? kasan_unpoison_shadow+0x30/0x40 [ 84.801556][ T1729] hso_probe+0xc93/0x1a46 [ 84.805861][ T1729] usb_probe_interface+0x305/0x7a0 [ 84.810946][ T1729] ? usb_probe_device+0x100/0x100 [ 84.815944][ T1729] really_probe+0x281/0x6d0 [ 84.820430][ T1729] driver_probe_device+0x101/0x1b0 [ 84.825520][ T1729] __device_attach_driver+0x1c2/0x220 [ 84.830867][ T1729] ? driver_allows_async_probing+0x160/0x160 [ 84.836820][ T1729] bus_for_each_drv+0x162/0x1e0 [ 84.841643][ T1729] ? bus_rescan_devices+0x20/0x20 [ 84.846645][ T1729] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 84.852427][ T1729] ? lockdep_hardirqs_on+0x379/0x580 [ 84.857709][ T1729] __device_attach+0x217/0x360 [ 84.862448][ T1729] ? device_bind_driver+0xd0/0xd0 [ 84.867446][ T1729] ? kobject_uevent_env+0x29e/0x1150 [ 84.872728][ T1729] ? kobject_uevent_env+0x2a8/0x1150 [ 84.877988][ T1729] bus_probe_device+0x1e4/0x290 [ 84.882816][ T1729] ? blocking_notifier_call_chain+0x54/0xa0 [ 84.888682][ T1729] device_add+0xae6/0x16f0 [ 84.893074][ T1729] ? uevent_store+0x50/0x50 [ 84.897549][ T1729] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 84.903338][ T1729] usb_set_configuration+0xdf6/0x1670 [ 84.908687][ T1729] generic_probe+0x9d/0xd5 [ 84.913075][ T1729] usb_probe_device+0x99/0x100 [ 84.917810][ T1729] ? usb_suspend+0x620/0x620 [ 84.922372][ T1729] really_probe+0x281/0x6d0 [ 84.926849][ T1729] driver_probe_device+0x101/0x1b0 [ 84.931939][ T1729] __device_attach_driver+0x1c2/0x220 [ 84.937283][ T1729] ? driver_allows_async_probing+0x160/0x160 [ 84.943237][ T1729] bus_for_each_drv+0x162/0x1e0 [ 84.948060][ T1729] ? bus_rescan_devices+0x20/0x20 [ 84.953057][ T1729] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 84.958837][ T1729] ? lockdep_hardirqs_on+0x379/0x580 [ 84.964106][ T1729] __device_attach+0x217/0x360 [ 84.968845][ T1729] ? device_bind_driver+0xd0/0xd0 [ 84.973847][ T1729] ? kobject_uevent_env+0x29e/0x1150 [ 84.979106][ T1729] ? kobject_uevent_env+0x2a8/0x1150 [ 84.984367][ T1729] bus_probe_device+0x1e4/0x290 [ 84.989196][ T1729] ? blocking_notifier_call_chain+0x54/0xa0 [ 84.995061][ T1729] device_add+0xae6/0x16f0 [ 84.999451][ T1729] ? uevent_store+0x50/0x50 [ 85.003927][ T1729] usb_new_device.cold+0x6a4/0xe79 [ 85.009010][ T1729] hub_event+0x1b5c/0x3640 [ 85.013403][ T1729] ? hub_port_debounce+0x260/0x260 executing program executing program executing program [ 85.018492][ T1729] process_one_work+0x92b/0x1530 [ 85.023439][ T1729] ? pwq_dec_nr_in_flight+0x310/0x310 [ 85.028820][ T1729] worker_thread+0x96/0xe20 [ 85.033300][ T1729] ? process_one_work+0x1530/0x1530 [ 85.038472][ T1729] kthread+0x318/0x420 [ 85.042515][ T1729] ? kthread_create_on_node+0xf0/0xf0 [ 85.047877][ T1729] ret_from_fork+0x24/0x30 [ 85.056542][ T102] usb 4-1: USB disconnect, device number 2 executing program executing program executing program [ 85.070587][ T17] usb 1-1: USB disconnect, device number 2 [ 85.077063][ T5] usb 5-1: USB disconnect, device number 2 [ 85.126602][ T1729] hso 3-1:0.1: Failed to find BULK IN ep [ 85.132354][ T1729] kasan: CONFIG_KASAN_INLINE enabled [ 85.137918][ T1729] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 85.146011][ T1729] general protection fault: 0000 [#1] SMP KASAN [ 85.152237][ T1729] CPU: 0 PID: 1729 Comm: kworker/0:4 Not tainted 5.3.0-rc7+ #0 [ 85.159786][ T1729] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 85.169955][ T1729] Workqueue: usb_hub_wq hub_event [ 85.174975][ T1729] RIP: 0010:cdev_del+0x22/0x90 [ 85.179707][ T1729] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 33 d1 d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 85.199315][ T1729] RSP: 0018:ffff8881d2aa72d0 EFLAGS: 00010207 [ 85.205353][ T1729] RAX: dffffc0000000000 RBX: ffff8881d5b1f900 RCX: ffffffff820d521e [ 85.213299][ T1729] RDX: 000000000000000c RSI: ffffffff8169096d RDI: 0000000000000064 [ 85.221241][ T1729] RBP: 0000000000000000 R08: ffff8881d4fe8000 R09: fffffbfff11ad79a [ 85.229193][ T1729] R10: fffffbfff11ad799 R11: ffffffff88d6bccf R12: 0000000000000000 [ 85.237145][ T1729] R13: ffff8881d5a36e80 R14: ffff8881d9581100 R15: ffff8881d2b9c470 [ 85.245095][ T1729] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 85.254023][ T1729] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.260588][ T1729] CR2: 0000000001c1ce80 CR3: 00000001d3c41000 CR4: 00000000001406f0 [ 85.268533][ T1729] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.276493][ T1729] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.284432][ T1729] Call Trace: [ 85.287706][ T1729] tty_unregister_device+0x10d/0x1a0 [ 85.292971][ T1729] hso_probe.cold+0xc8/0x121 [ 85.297538][ T1729] usb_probe_interface+0x305/0x7a0 [ 85.302621][ T1729] ? usb_probe_device+0x100/0x100 [ 85.307615][ T1729] really_probe+0x281/0x6d0 [ 85.312090][ T1729] driver_probe_device+0x101/0x1b0 [ 85.317172][ T1729] __device_attach_driver+0x1c2/0x220 [ 85.322522][ T1729] ? driver_allows_async_probing+0x160/0x160 [ 85.328496][ T1729] bus_for_each_drv+0x162/0x1e0 [ 85.333349][ T1729] ? bus_rescan_devices+0x20/0x20 [ 85.338345][ T1729] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 85.344119][ T1729] ? lockdep_hardirqs_on+0x379/0x580 [ 85.349376][ T1729] __device_attach+0x217/0x360 [ 85.354148][ T1729] ? device_bind_driver+0xd0/0xd0 [ 85.359147][ T1729] ? kobject_uevent_env+0x29e/0x1150 [ 85.364403][ T1729] ? kobject_uevent_env+0x2a8/0x1150 [ 85.369664][ T1729] bus_probe_device+0x1e4/0x290 [ 85.374526][ T1729] ? blocking_notifier_call_chain+0x54/0xa0 [ 85.380390][ T1729] device_add+0xae6/0x16f0 [ 85.384773][ T1729] ? uevent_store+0x50/0x50 [ 85.389256][ T1729] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 85.395039][ T1729] usb_set_configuration+0xdf6/0x1670 [ 85.400392][ T1729] generic_probe+0x9d/0xd5 [ 85.404779][ T1729] usb_probe_device+0x99/0x100 [ 85.409515][ T1729] ? usb_suspend+0x620/0x620 [ 85.414113][ T1729] really_probe+0x281/0x6d0 [ 85.418603][ T1729] driver_probe_device+0x101/0x1b0 [ 85.423688][ T1729] __device_attach_driver+0x1c2/0x220 [ 85.429042][ T1729] ? driver_allows_async_probing+0x160/0x160 [ 85.435000][ T1729] bus_for_each_drv+0x162/0x1e0 [ 85.439828][ T1729] ? bus_rescan_devices+0x20/0x20 [ 85.444846][ T1729] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 85.450631][ T1729] ? lockdep_hardirqs_on+0x379/0x580 [ 85.455939][ T1729] __device_attach+0x217/0x360 [ 85.460678][ T1729] ? device_bind_driver+0xd0/0xd0 [ 85.465682][ T1729] ? kobject_uevent_env+0x29e/0x1150 [ 85.470962][ T1729] ? kobject_uevent_env+0x2a8/0x1150 [ 85.476219][ T1729] bus_probe_device+0x1e4/0x290 [ 85.481047][ T1729] ? blocking_notifier_call_chain+0x54/0xa0 [ 85.486908][ T1729] device_add+0xae6/0x16f0 [ 85.491310][ T1729] ? uevent_store+0x50/0x50 [ 85.495784][ T1729] usb_new_device.cold+0x6a4/0xe79 [ 85.500866][ T1729] hub_event+0x1b5c/0x3640 [ 85.505255][ T1729] ? hub_port_debounce+0x260/0x260 [ 85.510343][ T1729] process_one_work+0x92b/0x1530 [ 85.515274][ T1729] ? pwq_dec_nr_in_flight+0x310/0x310 [ 85.520622][ T1729] worker_thread+0x96/0xe20 [ 85.525099][ T1729] ? process_one_work+0x1530/0x1530 [ 85.530264][ T1729] kthread+0x318/0x420 [ 85.534307][ T1729] ? kthread_create_on_node+0xf0/0xf0 [ 85.539673][ T1729] ret_from_fork+0x24/0x30 [ 85.544054][ T1729] Modules linked in: [ 85.547958][ T1729] ---[ end trace 94bad328f5d59ea2 ]--- [ 85.553401][ T1729] RIP: 0010:cdev_del+0x22/0x90 [ 85.558165][ T1729] Code: cf 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 ec 08 e8 33 d1 d4 ff 48 8d 7d 64 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 4f 48 [ 85.577761][ T1729] RSP: 0018:ffff8881d2aa72d0 EFLAGS: 00010207 [ 85.583802][ T1729] RAX: dffffc0000000000 RBX: ffff8881d5b1f900 RCX: ffffffff820d521e [ 85.591774][ T1729] RDX: 000000000000000c RSI: ffffffff8169096d RDI: 0000000000000064 [ 85.599743][ T1729] RBP: 0000000000000000 R08: ffff8881d4fe8000 R09: fffffbfff11ad79a [ 85.607718][ T1729] R10: fffffbfff11ad799 R11: ffffffff88d6bccf R12: 0000000000000000 [ 85.615696][ T1729] R13: ffff8881d5a36e80 R14: ffff8881d9581100 R15: ffff8881d2b9c470 [ 85.623654][ T1729] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 85.632572][ T1729] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 85.639146][ T1729] CR2: 0000000001c1ce80 CR3: 00000001d3c41000 CR4: 00000000001406f0 [ 85.647111][ T1729] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 85.655081][ T1729] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 85.663036][ T1729] Kernel panic - not syncing: Fatal exception [ 85.669621][ T1729] Kernel Offset: disabled [ 85.673930][ T1729] Rebooting in 86400 seconds..