[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. [ 15.037427][ C1] random: crng init done [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.181' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.329590][ T102] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 34.569129][ T102] usb 1-1: Using ep0 maxpacket: 8 [ 34.689241][ T102] usb 1-1: config 0 has an invalid interface number: 134 but max is 0 [ 34.697691][ T102] usb 1-1: config 0 has no interface number 0 [ 34.704129][ T102] usb 1-1: config 0 interface 134 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 0 [ 34.714217][ T102] usb 1-1: New USB device found, idVendor=054c, idProduct=06c3, bcdDevice=ad.a7 [ 34.723493][ T102] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 34.732645][ T102] usb 1-1: config 0 descriptor?? [ 34.781010][ T102] ------------[ cut here ]------------ [ 34.786611][ T102] URB 00000000d388999c submitted while active [ 34.792862][ T102] WARNING: CPU: 0 PID: 102 at drivers/usb/core/urb.c:362 usb_submit_urb+0x10c1/0x13b0 [ 34.802405][ T102] Kernel panic - not syncing: panic_on_warn set ... [ 34.808979][ T102] CPU: 0 PID: 102 Comm: kworker/0:2 Not tainted 5.3.0+ #0 [ 34.816103][ T102] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.826255][ T102] Workqueue: usb_hub_wq hub_event [ 34.831269][ T102] Call Trace: [ 34.834564][ T102] dump_stack+0xca/0x13e [ 34.838815][ T102] ? usb_submit_urb+0x1000/0x13b0 [ 34.843826][ T102] panic+0x2a3/0x6da [ 34.847724][ T102] ? add_taint.cold+0x16/0x16 [ 34.852393][ T102] ? __probe_kernel_read+0x188/0x1d0 [ 34.857670][ T102] ? __warn.cold+0x5/0x4a [ 34.861993][ T102] ? __warn+0xe3/0x1e0 [ 34.866044][ T102] ? usb_submit_urb+0x10c1/0x13b0 [ 34.871049][ T102] __warn.cold+0x20/0x4a [ 34.875273][ T102] ? usb_submit_urb+0x10c1/0x13b0 [ 34.880287][ T102] report_bug+0x262/0x2a0 [ 34.884616][ T102] do_error_trap+0x12b/0x1e0 [ 34.889284][ T102] ? usb_submit_urb+0x10c1/0x13b0 [ 34.894290][ T102] do_invalid_op+0x32/0x40 [ 34.898698][ T102] ? usb_submit_urb+0x10c1/0x13b0 [ 34.903703][ T102] invalid_op+0x23/0x30 [ 34.907844][ T102] RIP: 0010:usb_submit_urb+0x10c1/0x13b0 [ 34.913564][ T102] Code: 89 de e8 92 5b ee fd 84 db 0f 85 42 f6 ff ff e8 55 5a ee fd 4c 89 fe 48 c7 c7 00 c2 18 86 c6 05 f3 cf 38 04 01 e8 f4 e5 c3 fd <0f> 0b e9 20 f6 ff ff c7 44 24 14 01 00 00 00 e9 d7 f6 ff ff 41 bd [ 34.933164][ T102] RSP: 0018:ffff8881d5e6f148 EFLAGS: 00010286 [ 34.939222][ T102] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 34.947195][ T102] RDX: 0000000000000000 RSI: ffffffff8128d9ad RDI: ffffed103abcde1b [ 34.955150][ T102] RBP: ffff8881d36b2720 R08: ffff8881d7bfc800 R09: fffffbfff11b35b5 [ 34.963132][ T102] R10: fffffbfff11b35b4 R11: ffffffff88d9ada7 R12: ffff8881d9452c00 [ 34.971096][ T102] R13: 00000000fffffff0 R14: ffff8881d2c82f48 R15: ffff8881d9452b00 [ 34.979068][ T102] ? vprintk_func+0x7d/0x113 [ 34.983640][ T102] ? usb_submit_urb+0x10c1/0x13b0 [ 34.988646][ T102] ? kasan_unpoison_shadow+0x30/0x40 [ 34.993915][ T102] port100_send_cmd_async+0x801/0xb80 [ 34.999271][ T102] port100_send_cmd_sync+0xaa/0x130 [ 35.004450][ T102] ? port100_in_send_cmd+0x1c0/0x1c0 [ 35.009717][ T102] ? __alloc_skb+0x3a7/0x5a0 [ 35.014304][ T102] ? skb_put+0x15d/0x1c0 [ 35.018557][ T102] port100_probe+0xa12/0xea0 [ 35.023134][ T102] usb_probe_interface+0x305/0x7a0 [ 35.028242][ T102] ? usb_probe_device+0x100/0x100 [ 35.033249][ T102] really_probe+0x281/0x6d0 [ 35.037736][ T102] driver_probe_device+0x101/0x1b0 [ 35.042844][ T102] __device_attach_driver+0x1c2/0x220 [ 35.048202][ T102] ? driver_allows_async_probing+0x160/0x160 [ 35.054187][ T102] bus_for_each_drv+0x162/0x1e0 [ 35.059065][ T102] ? bus_rescan_devices+0x20/0x20 [ 35.064476][ T102] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 35.070708][ T102] ? lockdep_hardirqs_on+0x379/0x580 [ 35.075981][ T102] __device_attach+0x217/0x360 [ 35.080748][ T102] ? device_bind_driver+0xd0/0xd0 [ 35.085853][ T102] ? kobject_uevent_env+0x29e/0x1150 [ 35.091144][ T102] ? kobject_uevent_env+0x2a8/0x1150 [ 35.096413][ T102] bus_probe_device+0x1e4/0x290 [ 35.101263][ T102] ? blocking_notifier_call_chain+0x54/0xa0 [ 35.107141][ T102] device_add+0xae6/0x16f0 [ 35.111561][ T102] ? uevent_store+0x50/0x50 [ 35.116289][ T102] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 35.122100][ T102] usb_set_configuration+0xdf6/0x1670 [ 35.127475][ T102] generic_probe+0x9d/0xd5 [ 35.131881][ T102] usb_probe_device+0x99/0x100 [ 35.136649][ T102] ? usb_suspend+0x620/0x620 [ 35.141224][ T102] really_probe+0x281/0x6d0 [ 35.145727][ T102] driver_probe_device+0x101/0x1b0 [ 35.150835][ T102] __device_attach_driver+0x1c2/0x220 [ 35.156192][ T102] ? driver_allows_async_probing+0x160/0x160 [ 35.162156][ T102] bus_for_each_drv+0x162/0x1e0 [ 35.167013][ T102] ? bus_rescan_devices+0x20/0x20 [ 35.172026][ T102] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 35.177925][ T102] ? lockdep_hardirqs_on+0x379/0x580 [ 35.183211][ T102] __device_attach+0x217/0x360 [ 35.187977][ T102] ? device_bind_driver+0xd0/0xd0 [ 35.192986][ T102] ? kobject_uevent_env+0x29e/0x1150 [ 35.198254][ T102] ? kobject_uevent_env+0x2a8/0x1150 [ 35.203631][ T102] bus_probe_device+0x1e4/0x290 [ 35.209210][ T102] ? blocking_notifier_call_chain+0x54/0xa0 [ 35.215415][ T102] device_add+0xae6/0x16f0 [ 35.219923][ T102] ? uevent_store+0x50/0x50 [ 35.224414][ T102] usb_new_device.cold+0x6a4/0xe79 [ 35.229626][ T102] hub_event+0x1b5c/0x3640 [ 35.234026][ T102] ? hub_port_debounce+0x260/0x260 [ 35.239187][ T102] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 35.244775][ T102] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 35.250062][ T102] process_one_work+0x92b/0x1530 [ 35.255002][ T102] ? pwq_dec_nr_in_flight+0x310/0x310 [ 35.260360][ T102] ? do_raw_spin_lock+0x11a/0x280 [ 35.265378][ T102] worker_thread+0x96/0xe20 [ 35.269882][ T102] ? process_one_work+0x1530/0x1530 [ 35.275079][ T102] kthread+0x318/0x420 [ 35.280101][ T102] ? kthread_create_on_node+0xf0/0xf0 [ 35.285527][ T102] ret_from_fork+0x24/0x30 [ 35.291185][ T102] Kernel Offset: disabled [ 35.295833][ T102] Rebooting in 86400 seconds..