[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[ 13.732460][ T1668] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 17.179005][ T1703] random: sshd: uninitialized urandom read (32 bytes read) [ 17.193415][ C1] random: crng init done Warning: Permanently added '10.128.1.23' (ECDSA) to the list of known hosts. executing program [ 41.321052][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 41.560674][ T83] usb 1-1: Using ep0 maxpacket: 32 [ 41.680720][ T83] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 41.688824][ T83] usb 1-1: config 0 has no interface number 0 [ 41.694932][ T83] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 41.704091][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 41.713233][ T83] usb 1-1: config 0 descriptor?? [ 41.970768][ T83] hso 1-1:0.15: Can't find BULK IN endpoint [ 41.976735][ T83] ------------[ cut here ]------------ [ 41.982385][ T83] WARNING: CPU: 1 PID: 83 at net/core/dev.c:8167 rollback_registered_many.cold+0x41/0x1bc [ 41.992243][ T83] Kernel panic - not syncing: panic_on_warn set ... [ 41.998935][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.3.0-rc5+ #28 [ 42.006355][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.016391][ T83] Workqueue: usb_hub_wq hub_event [ 42.021397][ T83] Call Trace: [ 42.024658][ T83] dump_stack+0xca/0x13e [ 42.028872][ T83] ? rollback_registered_many.cold+0x4/0x1bc [ 42.034827][ T83] panic+0x2a3/0x6da [ 42.038688][ T83] ? add_taint.cold+0x16/0x16 [ 42.043332][ T83] ? __probe_kernel_read+0x188/0x1d0 [ 42.048577][ T83] ? __warn.cold+0x5/0x4a [ 42.052866][ T83] ? __warn+0xe3/0x1e0 [ 42.056901][ T83] ? rollback_registered_many.cold+0x41/0x1bc [ 42.062939][ T83] __warn.cold+0x20/0x4a [ 42.067150][ T83] ? rollback_registered_many.cold+0x41/0x1bc [ 42.073184][ T83] report_bug+0x262/0x2a0 [ 42.077479][ T83] do_error_trap+0x12b/0x1e0 [ 42.082033][ T83] ? rollback_registered_many.cold+0x41/0x1bc [ 42.088066][ T83] do_invalid_op+0x32/0x40 [ 42.092451][ T83] ? rollback_registered_many.cold+0x41/0x1bc [ 42.098481][ T83] invalid_op+0x23/0x30 [ 42.102600][ T83] RIP: 0010:rollback_registered_many.cold+0x41/0x1bc [ 42.109236][ T83] Code: ff e8 c7 26 90 fc 48 c7 c7 40 ec 63 86 e8 24 c8 7a fc 0f 0b e9 93 be ff ff e8 af 26 90 fc 48 c7 c7 40 ec 63 86 e8 0c c8 7a fc <0f> 0b 4c 89 e7 e8 f9 12 34 fd 31 ff 41 89 c4 89 c6 e8 bd 27 90 fc [ 42.128802][ T83] RSP: 0018:ffff8881d934f088 EFLAGS: 00010282 [ 42.134831][ T83] RAX: 0000000000000024 RBX: ffff8881d2ad4400 RCX: 0000000000000000 [ 42.142767][ T83] RDX: 0000000000000000 RSI: ffffffff81288cfd RDI: ffffed103b269e03 [ 42.150712][ T83] RBP: ffff8881d934f1b8 R08: 0000000000000024 R09: fffffbfff11ad794 [ 42.158646][ T83] R10: fffffbfff11ad793 R11: ffffffff88d6bc9f R12: ffff8881d2ad4470 [ 42.166581][ T83] R13: ffff8881d934f148 R14: dffffc0000000000 R15: 0000000000000000 [ 42.174523][ T83] ? vprintk_func+0x7d/0x113 [ 42.179077][ T83] ? rollback_registered_many.cold+0x41/0x1bc [ 42.185110][ T83] ? generic_xdp_install+0x480/0x480 [ 42.190363][ T83] ? __mutex_lock+0x430/0x1360 [ 42.195091][ T83] ? find_held_lock+0x2d/0x110 [ 42.199817][ T83] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 42.205410][ T83] ? unregister_netdev+0xe/0x20 [ 42.210222][ T83] ? mutex_trylock+0x2c0/0x2c0 [ 42.214967][ T83] rollback_registered+0xf2/0x1c0 [ 42.219957][ T83] ? rollback_registered_many+0xc70/0xc70 [ 42.225641][ T83] ? _dev_crit+0x109/0x109 [ 42.230025][ T83] ? kasan_unpoison_shadow+0x30/0x40 [ 42.235275][ T83] unregister_netdevice_queue+0x1d7/0x2b0 [ 42.240957][ T83] unregister_netdev+0x18/0x20 [ 42.245684][ T83] hso_free_net_device+0xff/0x300 [ 42.250673][ T83] hso_create_net_device+0x76d/0x9c0 [ 42.255923][ T83] hso_probe+0x28d/0x1a46 [ 42.260216][ T83] usb_probe_interface+0x305/0x7a0 [ 42.265413][ T83] ? usb_probe_device+0x100/0x100 [ 42.270408][ T83] really_probe+0x281/0x6d0 [ 42.274874][ T83] driver_probe_device+0x101/0x1b0 [ 42.279948][ T83] __device_attach_driver+0x1c2/0x220 [ 42.285280][ T83] ? driver_allows_async_probing+0x160/0x160 [ 42.291222][ T83] bus_for_each_drv+0x162/0x1e0 [ 42.296036][ T83] ? bus_rescan_devices+0x20/0x20 [ 42.301027][ T83] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.306798][ T83] ? lockdep_hardirqs_on+0x379/0x580 [ 42.312068][ T83] __device_attach+0x217/0x360 [ 42.316792][ T83] ? device_bind_driver+0xd0/0xd0 [ 42.321781][ T83] ? kobject_uevent_env+0x29e/0x1160 [ 42.327036][ T83] ? kobject_uevent_env+0x2a8/0x1160 [ 42.332299][ T83] bus_probe_device+0x1e4/0x290 [ 42.337112][ T83] ? blocking_notifier_call_chain+0x54/0xa0 [ 42.342963][ T83] device_add+0xae6/0x16f0 [ 42.347344][ T83] ? uevent_store+0x50/0x50 [ 42.351813][ T83] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.357635][ T83] usb_set_configuration+0xdf6/0x1670 [ 42.362983][ T83] generic_probe+0x9d/0xd5 [ 42.367369][ T83] usb_probe_device+0x99/0x100 [ 42.372109][ T83] ? usb_suspend+0x620/0x620 [ 42.376664][ T83] really_probe+0x281/0x6d0 [ 42.381131][ T83] driver_probe_device+0x101/0x1b0 [ 42.386210][ T83] __device_attach_driver+0x1c2/0x220 [ 42.391550][ T83] ? driver_allows_async_probing+0x160/0x160 [ 42.397496][ T83] bus_for_each_drv+0x162/0x1e0 [ 42.402310][ T83] ? bus_rescan_devices+0x20/0x20 [ 42.407301][ T83] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 42.413085][ T83] ? lockdep_hardirqs_on+0x379/0x580 [ 42.418340][ T83] __device_attach+0x217/0x360 [ 42.423067][ T83] ? device_bind_driver+0xd0/0xd0 [ 42.428061][ T83] ? kobject_uevent_env+0x29e/0x1160 [ 42.433311][ T83] ? kobject_uevent_env+0x2a8/0x1160 [ 42.438558][ T83] bus_probe_device+0x1e4/0x290 [ 42.443397][ T83] ? blocking_notifier_call_chain+0x54/0xa0 [ 42.449251][ T83] device_add+0xae6/0x16f0 [ 42.453633][ T83] ? uevent_store+0x50/0x50 [ 42.458103][ T83] usb_new_device.cold+0x6a4/0xe79 [ 42.463180][ T83] hub_event+0x1b5c/0x3640 [ 42.467567][ T83] ? hub_port_debounce+0x260/0x260 [ 42.472650][ T83] process_one_work+0x92b/0x1530 [ 42.477558][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 42.482896][ T83] ? do_raw_spin_lock+0x11a/0x280 [ 42.487885][ T83] worker_thread+0x96/0xe20 [ 42.492353][ T83] ? process_one_work+0x1530/0x1530 [ 42.497513][ T83] kthread+0x318/0x420 [ 42.501545][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 42.506878][ T83] ret_from_fork+0x24/0x30 [ 42.511875][ T83] Kernel Offset: disabled [ 42.516231][ T83] Rebooting in 86400 seconds..