[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[ 14.935092][ T1663] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ ok 8[?25h[?0c. [ 15.115607][ C1] random: crng init done Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.216' (ECDSA) to the list of known hosts. syzkaller login: [ 33.406324][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 33.646286][ T22] usb 1-1: Using ep0 maxpacket: 32 [ 33.766397][ T22] usb 1-1: config 0 has an invalid interface number: 15 but max is 0 [ 33.774720][ T22] usb 1-1: config 0 has no interface number 0 [ 33.780879][ T22] usb 1-1: New USB device found, idVendor=0af0, idProduct=d257, bcdDevice=4e.87 [ 33.789933][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.799476][ T22] usb 1-1: config 0 descriptor?? [ 34.056948][ T22] hso 1-1:0.15: Can't find BULK IN endpoint [ 34.062946][ T22] ------------[ cut here ]------------ [ 34.068658][ T22] WARNING: CPU: 1 PID: 22 at net/core/dev.c:8167 rollback_registered_many.cold+0x41/0x1bc [ 34.078537][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 34.085100][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.3.0-rc7+ #0 [ 34.092436][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.102470][ T22] Workqueue: usb_hub_wq hub_event [ 34.107463][ T22] Call Trace: [ 34.110731][ T22] dump_stack+0xca/0x13e [ 34.114948][ T22] ? dev_change_tx_queue_len.cold+0x12/0x54 [ 34.120812][ T22] panic+0x2a3/0x6da [ 34.124678][ T22] ? add_taint.cold+0x16/0x16 [ 34.129336][ T22] ? __probe_kernel_read+0x188/0x1d0 [ 34.134592][ T22] ? __warn.cold+0x5/0x4a [ 34.138896][ T22] ? __warn+0xe3/0x1e0 [ 34.142958][ T22] ? rollback_registered_many.cold+0x41/0x1bc [ 34.148995][ T22] __warn.cold+0x20/0x4a [ 34.153212][ T22] ? rollback_registered_many.cold+0x41/0x1bc [ 34.159250][ T22] report_bug+0x262/0x2a0 [ 34.163552][ T22] do_error_trap+0x12b/0x1e0 [ 34.168113][ T22] ? rollback_registered_many.cold+0x41/0x1bc [ 34.174158][ T22] do_invalid_op+0x32/0x40 [ 34.178552][ T22] ? rollback_registered_many.cold+0x41/0x1bc [ 34.184589][ T22] invalid_op+0x23/0x30 [ 34.188719][ T22] RIP: 0010:rollback_registered_many.cold+0x41/0x1bc [ 34.195363][ T22] Code: ff e8 f7 f6 8f fc 48 c7 c7 40 f4 63 86 e8 74 98 7a fc 0f 0b e9 93 be ff ff e8 df f6 8f fc 48 c7 c7 40 f4 63 86 e8 5c 98 7a fc <0f> 0b 4c 89 e7 e8 29 fb 33 fd 31 ff 41 89 c4 89 c6 e8 ed f7 8f fc [ 34.214943][ T22] RSP: 0018:ffff8881d9687088 EFLAGS: 00010282 [ 34.220988][ T22] RAX: 0000000000000024 RBX: ffff8881d5072200 RCX: 0000000000000000 [ 34.228931][ T22] RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b2d0e03 [ 34.236874][ T22] RBP: ffff8881d96871b8 R08: 0000000000000024 R09: fffffbfff11ad794 [ 34.244820][ T22] R10: fffffbfff11ad793 R11: ffffffff88d6bc9f R12: ffff8881d5072270 [ 34.252776][ T22] R13: ffff8881d9687148 R14: dffffc0000000000 R15: 0000000000000000 [ 34.260726][ T22] ? vprintk_func+0x7d/0x113 [ 34.265289][ T22] ? rollback_registered_many.cold+0x41/0x1bc [ 34.271329][ T22] ? generic_xdp_install+0x480/0x480 [ 34.276595][ T22] ? __mutex_lock+0x430/0x1360 [ 34.281345][ T22] ? find_held_lock+0x2d/0x110 [ 34.286088][ T22] ? fs_reclaim_acquire.part.0+0x30/0x30 [ 34.291710][ T22] ? unregister_netdev+0xe/0x20 [ 34.296540][ T22] ? mutex_trylock+0x2c0/0x2c0 [ 34.301279][ T22] rollback_registered+0xf2/0x1c0 [ 34.306282][ T22] ? rollback_registered_many+0xc70/0xc70 [ 34.312000][ T22] ? _dev_crit+0x109/0x109 [ 34.316391][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 34.321647][ T22] unregister_netdevice_queue+0x1d7/0x2b0 [ 34.327368][ T22] unregister_netdev+0x18/0x20 [ 34.332104][ T22] hso_free_net_device+0xff/0x300 [ 34.337110][ T22] hso_create_net_device+0x76d/0x9c0 [ 34.342366][ T22] hso_probe+0x28d/0x1a46 [ 34.346670][ T22] usb_probe_interface+0x305/0x7a0 [ 34.351751][ T22] ? usb_probe_device+0x100/0x100 [ 34.356757][ T22] really_probe+0x281/0x6d0 [ 34.361235][ T22] driver_probe_device+0x101/0x1b0 [ 34.366319][ T22] __device_attach_driver+0x1c2/0x220 [ 34.371661][ T22] ? driver_allows_async_probing+0x160/0x160 [ 34.377611][ T22] bus_for_each_drv+0x162/0x1e0 [ 34.382434][ T22] ? bus_rescan_devices+0x20/0x20 [ 34.387430][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 34.393205][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 34.398459][ T22] __device_attach+0x217/0x360 [ 34.403204][ T22] ? device_bind_driver+0xd0/0xd0 [ 34.408202][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 34.413471][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 34.418727][ T22] bus_probe_device+0x1e4/0x290 [ 34.423550][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 34.429412][ T22] device_add+0xae6/0x16f0 [ 34.433802][ T22] ? uevent_store+0x50/0x50 [ 34.438289][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 34.444072][ T22] usb_set_configuration+0xdf6/0x1670 [ 34.449420][ T22] generic_probe+0x9d/0xd5 [ 34.453810][ T22] usb_probe_device+0x99/0x100 [ 34.458572][ T22] ? usb_suspend+0x620/0x620 [ 34.463139][ T22] really_probe+0x281/0x6d0 [ 34.467620][ T22] driver_probe_device+0x101/0x1b0 [ 34.472718][ T22] __device_attach_driver+0x1c2/0x220 [ 34.478071][ T22] ? driver_allows_async_probing+0x160/0x160 [ 34.484047][ T22] bus_for_each_drv+0x162/0x1e0 [ 34.488879][ T22] ? bus_rescan_devices+0x20/0x20 [ 34.493884][ T22] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 34.499666][ T22] ? lockdep_hardirqs_on+0x379/0x580 [ 34.504922][ T22] __device_attach+0x217/0x360 [ 34.509659][ T22] ? device_bind_driver+0xd0/0xd0 [ 34.514661][ T22] ? kobject_uevent_env+0x29e/0x1150 [ 34.519917][ T22] ? kobject_uevent_env+0x2a8/0x1150 [ 34.525176][ T22] bus_probe_device+0x1e4/0x290 [ 34.529999][ T22] ? blocking_notifier_call_chain+0x54/0xa0 [ 34.535864][ T22] device_add+0xae6/0x16f0 [ 34.540251][ T22] ? uevent_store+0x50/0x50 [ 34.544736][ T22] usb_new_device.cold+0x6a4/0xe79 [ 34.549817][ T22] hub_event+0x1b5c/0x3640 [ 34.554220][ T22] ? hub_port_debounce+0x260/0x260 [ 34.559312][ T22] process_one_work+0x92b/0x1530 [ 34.564232][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 34.569576][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 34.574573][ T22] worker_thread+0x96/0xe20 [ 34.579057][ T22] ? process_one_work+0x1530/0x1530 [ 34.584225][ T22] kthread+0x318/0x420 [ 34.588284][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 34.593635][ T22] ret_from_fork+0x24/0x30 [ 34.598767][ T22] Kernel Offset: disabled [ 34.603116][ T22] Rebooting in 86400 seconds..