[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 11.909304][ T1672] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 15.357485][ T1707] random: sshd: uninitialized urandom read (32 bytes read) [ 15.468415][ T1710] random: sshd: uninitialized urandom read (32 bytes read) [ 15.875095][ T1713] random: sshd: uninitialized urandom read (32 bytes read) [ 25.649839][ C0] random: crng init done Warning: Permanently added '10.128.10.63' (ECDSA) to the list of known hosts. executing program [ 35.639259][ T101] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 35.999307][ T101] usb 1-1: config 0 has an invalid interface number: 40 but max is 0 [ 36.007505][ T101] usb 1-1: config 0 has no interface number 0 [ 36.013783][ T101] usb 1-1: config 0 interface 40 altsetting 0 endpoint 0xC has invalid maxpacket 721, setting to 64 [ 36.024545][ T101] usb 1-1: config 0 interface 40 altsetting 0 endpoint 0x7 has invalid maxpacket 783, setting to 64 [ 36.035304][ T101] usb 1-1: config 0 interface 40 altsetting 0 bulk endpoint 0x8C has invalid maxpacket 405 [ 36.045273][ T101] usb 1-1: New USB device found, idVendor=8086, idProduct=0180, bcdDevice=79.3b [ 36.054283][ T101] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 36.063428][ T101] usb 1-1: config 0 descriptor?? [ 36.099945][ T101] i2400m_usb 1-1:0.40: warm reset failed (-108); trying USB reset [ 36.107752][ T101] ------------[ cut here ]------------ [ 36.113219][ T101] usb 1-1: BOGUS urb xfer, pipe 1 != type 3 [ 36.119335][ T101] WARNING: CPU: 0 PID: 101 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 [ 36.128839][ T101] Kernel panic - not syncing: panic_on_warn set ... [ 36.135399][ T101] CPU: 0 PID: 101 Comm: kworker/0:2 Not tainted 5.3.0-rc5+ #28 [ 36.143044][ T101] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 36.153071][ T101] Workqueue: usb_hub_wq hub_event [ 36.158054][ T101] Call Trace: [ 36.161317][ T101] dump_stack+0xca/0x13e [ 36.165522][ T101] ? usb_submit_urb+0x1110/0x13b0 [ 36.170507][ T101] panic+0x2a3/0x6da [ 36.174367][ T101] ? add_taint.cold+0x16/0x16 [ 36.179010][ T101] ? __probe_kernel_read+0x188/0x1d0 [ 36.184254][ T101] ? __warn.cold+0x5/0x4a [ 36.188544][ T101] ? __warn+0xe3/0x1e0 [ 36.192574][ T101] ? usb_submit_urb+0x1188/0x13b0 [ 36.197559][ T101] __warn.cold+0x20/0x4a [ 36.201767][ T101] ? usb_submit_urb+0x1188/0x13b0 [ 36.206757][ T101] report_bug+0x262/0x2a0 [ 36.211050][ T101] do_error_trap+0x12b/0x1e0 [ 36.215602][ T101] ? usb_submit_urb+0x1188/0x13b0 [ 36.220590][ T101] do_invalid_op+0x32/0x40 [ 36.224967][ T101] ? usb_submit_urb+0x1188/0x13b0 [ 36.229954][ T101] invalid_op+0x23/0x30 [ 36.234072][ T101] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 36.239667][ T101] Code: 4d 85 ed 74 2c e8 88 ba ef fd 4c 89 f7 e8 70 bf 1c ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 00 69 18 86 e8 6d a0 c5 fd <0f> 0b e9 20 f4 ff ff e8 5c ba ef fd 4c 89 f2 48 b8 00 00 00 00 00 [ 36.259233][ T101] RSP: 0018:ffff8881d5056c70 EFLAGS: 00010286 [ 36.265259][ T101] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 36.273197][ T101] RDX: 0000000000000000 RSI: ffffffff81288cfd RDI: ffffed103aa0ad80 [ 36.281134][ T101] RBP: ffff8881d3328e10 R08: ffff8881d7ade000 R09: ffffed103b645d58 [ 36.289068][ T101] R10: ffffed103b645d57 R11: ffff8881db22eabf R12: 0000000000000001 [ 36.297005][ T101] R13: ffff8881c7cba5d0 R14: ffff8881d6f8ef20 R15: ffff8881d5056df0 [ 36.304943][ T101] ? vprintk_func+0x7d/0x113 [ 36.309495][ T101] i2400mu_bus_bm_wait_for_ack+0x4bf/0xb45 [ 36.315261][ T101] ? i2400mu_bus_bm_cmd_send+0xb20/0xb20 [ 36.320855][ T101] ? i2400m_debugfs_add.cold+0x2b9/0x2b9 [ 36.326456][ T101] ? refcount_inc_not_zero_checked+0x12d/0x1e0 [ 36.332570][ T101] ? refcount_dec_and_mutex_lock+0x80/0x80 [ 36.338336][ T101] ? refcount_inc_checked+0x1d/0x60 [ 36.343497][ T101] i2400m_bm_cmd+0x346/0x7f0 [ 36.348048][ T101] ? i2400mu_bus_reset+0x1ff/0x410 [ 36.353122][ T101] ? __i2400m_bm_ack_verify+0x910/0x910 [ 36.358630][ T101] ? really_probe+0x281/0x6d0 [ 36.363269][ T101] ? driver_probe_device+0x101/0x1b0 [ 36.368514][ T101] ? __device_attach_driver+0x1c2/0x220 [ 36.374021][ T101] ? bus_for_each_drv+0x162/0x1e0 [ 36.379010][ T101] ? __device_attach+0x217/0x360 [ 36.383911][ T101] ? bus_probe_device+0x1e4/0x290 [ 36.388897][ T101] ? device_add+0xae6/0x16f0 [ 36.393448][ T101] ? usb_set_configuration+0xdf6/0x1670 [ 36.398953][ T101] ? generic_probe+0x9d/0xd5 [ 36.403503][ T101] ? usb_probe_device+0x99/0x100 [ 36.408401][ T101] ? i2400m_reset+0x7e/0x2e0 [ 36.412955][ T101] ? driver_probe_device+0x101/0x1b0 [ 36.418205][ T101] ? __device_attach_driver+0x1c2/0x220 [ 36.423713][ T101] ? bus_for_each_drv+0x162/0x1e0 [ 36.428699][ T101] ? __device_attach+0x217/0x360 [ 36.433600][ T101] ? bus_probe_device+0x1e4/0x290 [ 36.438587][ T101] i2400m_bootrom_init+0x319/0x1060 [ 36.443747][ T101] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 36.449379][ T101] ? i2400m_barker_db_init+0x2c0/0x2c0 [ 36.454806][ T101] ? lock_downgrade+0x6e0/0x6e0 [ 36.459619][ T101] ? kasan_unpoison_shadow+0x30/0x40 [ 36.464867][ T101] ? i2400m_setup+0x29c/0x990 [ 36.469507][ T101] i2400m_setup+0x29c/0x990 [ 36.473974][ T101] ? __i2400m_dev_stop+0x360/0x360 [ 36.479050][ T101] ? mark_lock+0xbc/0x1130 [ 36.483430][ T101] ? rwlock_bug.part.0+0x90/0x90 [ 36.488330][ T101] ? mark_held_locks+0x9f/0xe0 [ 36.493059][ T101] ? _raw_spin_unlock_irq+0x24/0x30 [ 36.498216][ T101] i2400mu_probe+0x6bf/0xdf0 [ 36.502770][ T101] usb_probe_interface+0x305/0x7a0 [ 36.507840][ T101] ? usb_probe_device+0x100/0x100 [ 36.512825][ T101] really_probe+0x281/0x6d0 [ 36.517289][ T101] driver_probe_device+0x101/0x1b0 [ 36.522364][ T101] __device_attach_driver+0x1c2/0x220 [ 36.527703][ T101] ? driver_allows_async_probing+0x160/0x160 [ 36.533644][ T101] bus_for_each_drv+0x162/0x1e0 [ 36.538457][ T101] ? bus_rescan_devices+0x20/0x20 [ 36.543442][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 36.549211][ T101] ? lockdep_hardirqs_on+0x379/0x580 [ 36.554458][ T101] __device_attach+0x217/0x360 [ 36.559186][ T101] ? device_bind_driver+0xd0/0xd0 [ 36.564170][ T101] ? kobject_uevent_env+0x29e/0x1160 [ 36.569418][ T101] ? kobject_uevent_env+0x2a8/0x1160 [ 36.574663][ T101] bus_probe_device+0x1e4/0x290 [ 36.579475][ T101] ? blocking_notifier_call_chain+0x54/0xa0 [ 36.585331][ T101] device_add+0xae6/0x16f0 [ 36.589708][ T101] ? uevent_store+0x50/0x50 [ 36.594175][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 36.599946][ T101] usb_set_configuration+0xdf6/0x1670 [ 36.605281][ T101] generic_probe+0x9d/0xd5 [ 36.609657][ T101] usb_probe_device+0x99/0x100 [ 36.614382][ T101] ? usb_suspend+0x620/0x620 [ 36.618934][ T101] really_probe+0x281/0x6d0 [ 36.623399][ T101] driver_probe_device+0x101/0x1b0 [ 36.628472][ T101] __device_attach_driver+0x1c2/0x220 [ 36.633806][ T101] ? driver_allows_async_probing+0x160/0x160 [ 36.639859][ T101] bus_for_each_drv+0x162/0x1e0 [ 36.644673][ T101] ? bus_rescan_devices+0x20/0x20 [ 36.649664][ T101] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 36.655433][ T101] ? lockdep_hardirqs_on+0x379/0x580 [ 36.660680][ T101] __device_attach+0x217/0x360 [ 36.665404][ T101] ? device_bind_driver+0xd0/0xd0 [ 36.670398][ T101] ? kobject_uevent_env+0x29e/0x1160 [ 36.675647][ T101] ? kobject_uevent_env+0x2a8/0x1160 [ 36.680901][ T101] bus_probe_device+0x1e4/0x290 [ 36.685711][ T101] ? blocking_notifier_call_chain+0x54/0xa0 [ 36.691565][ T101] device_add+0xae6/0x16f0 [ 36.695942][ T101] ? uevent_store+0x50/0x50 [ 36.700407][ T101] usb_new_device.cold+0x6a4/0xe79 [ 36.705478][ T101] hub_event+0x1b5c/0x3640 [ 36.709855][ T101] ? hub_port_debounce+0x260/0x260 [ 36.714928][ T101] process_one_work+0x92b/0x1530 [ 36.719829][ T101] ? pwq_dec_nr_in_flight+0x310/0x310 [ 36.725168][ T101] ? do_raw_spin_lock+0x11a/0x280 [ 36.730156][ T101] worker_thread+0x96/0xe20 [ 36.734835][ T101] ? process_one_work+0x1530/0x1530 [ 36.739997][ T101] kthread+0x318/0x420 [ 36.744040][ T101] ? kthread_create_on_node+0xf0/0xf0 [ 36.749377][ T101] ret_from_fork+0x24/0x30 [ 36.754247][ T101] Kernel Offset: disabled [ 36.758614][ T101] Rebooting in 86400 seconds..