[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. [ 14.875241][ 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 '10.128.1.31' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 26.281032][ T78] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 26.521000][ T78] usb 1-1: Using ep0 maxpacket: 8 [ 26.641095][ T78] usb 1-1: config 1 has an invalid interface number: 20 but max is 0 [ 26.649263][ T78] usb 1-1: config 1 has no interface number 0 [ 26.655448][ T78] usb 1-1: config 1 interface 20 altsetting 0 endpoint 0x8A has wMaxPacketSize 0, skipping [ 26.665538][ T78] usb 1-1: New USB device found, idVendor=10cf, idProduct=5502, bcdDevice=45.7a [ 26.674588][ T78] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.725327][ T78] ------------[ cut here ]------------ [ 26.730998][ T78] usb 1-1: BOGUS urb xfer, pipe 1 != type 3 [ 26.736987][ T78] WARNING: CPU: 1 PID: 78 at drivers/usb/core/urb.c:478 usb_submit_urb+0x1188/0x13b0 [ 26.746418][ T78] Kernel panic - not syncing: panic_on_warn set ... [ 26.752982][ T78] CPU: 1 PID: 78 Comm: kworker/1:1 Not tainted 5.5.0-rc2-syzkaller #0 [ 26.761104][ T78] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.771153][ T78] Workqueue: usb_hub_wq hub_event [ 26.776151][ T78] Call Trace: [ 26.779531][ T78] dump_stack+0xef/0x16e [ 26.783751][ T78] ? usb_submit_urb+0x1140/0x13b0 [ 26.788847][ T78] panic+0x2aa/0x6e1 [ 26.792723][ T78] ? add_taint.cold+0x16/0x16 [ 26.797377][ T78] ? __probe_kernel_read+0x188/0x1d0 [ 26.802809][ T78] ? __warn.cold+0x14/0x30 [ 26.807216][ T78] ? __warn+0xd5/0x1c8 [ 26.811274][ T78] ? usb_submit_urb+0x1188/0x13b0 [ 26.816282][ T78] __warn.cold+0x2f/0x30 [ 26.820535][ T78] ? usb_submit_urb+0x1188/0x13b0 [ 26.825545][ T78] report_bug+0x27b/0x2f0 [ 26.829867][ T78] do_error_trap+0x12b/0x1e0 [ 26.834439][ T78] ? usb_submit_urb+0x1188/0x13b0 [ 26.839451][ T78] do_invalid_op+0x32/0x40 [ 26.844046][ T78] ? usb_submit_urb+0x1188/0x13b0 [ 26.849050][ T78] invalid_op+0x23/0x30 [ 26.853278][ T78] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 26.858894][ T78] Code: 4d 85 ed 74 2c e8 78 90 e7 fd 4c 89 f7 e8 70 2c 1d ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 80 59 15 86 e8 20 ad bc fd <0f> 0b e9 20 f4 ff ff e8 4c 90 e7 fd 4c 89 f2 48 b8 00 00 00 00 00 [ 26.878485][ T78] RSP: 0018:ffff8881d8d87048 EFLAGS: 00010286 [ 26.884546][ T78] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 26.892504][ T78] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103b1b0dfb [ 26.900470][ T78] RBP: ffff8881d4c8a300 R08: ffff8881d8d78000 R09: ffffed103b66439f [ 26.908539][ T78] R10: ffffed103b66439e R11: ffff8881db321cf3 R12: 0000000000000001 [ 26.916507][ T78] R13: ffff8881d235fe70 R14: ffff8881cfdd90a0 R15: ffff8881d4c8a100 [ 26.924471][ T78] ? vprintk_func+0x7d/0x113 [ 26.929043][ T78] ? usb_submit_urb+0x1188/0x13b0 [ 26.934056][ T78] usb_start_wait_urb+0x108/0x2b0 [ 26.939491][ T78] ? sg_clean+0x230/0x230 [ 26.943810][ T78] ? kasan_unpoison_shadow+0x30/0x40 [ 26.949213][ T78] ? memset+0x20/0x40 [ 26.953194][ T78] usb_bulk_msg+0x228/0x550 [ 26.957682][ T78] vmk80xx_write_packet+0x1df/0x260 [ 26.962872][ T78] vmk80xx_auto_attach+0x13b1/0x17c0 [ 26.968160][ T78] comedi_auto_config+0x16e/0x250 [ 26.973222][ T78] usb_probe_interface+0x305/0x7a0 [ 26.978329][ T78] ? usb_probe_device+0x100/0x100 [ 26.983345][ T78] really_probe+0x281/0x6d0 [ 26.987841][ T78] driver_probe_device+0x104/0x210 [ 26.992937][ T78] __device_attach_driver+0x1c2/0x220 [ 26.998298][ T78] ? driver_allows_async_probing+0x160/0x160 [ 27.004260][ T78] bus_for_each_drv+0x162/0x1e0 [ 27.009097][ T78] ? bus_rescan_devices+0x20/0x20 [ 27.014100][ T78] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 27.019887][ T78] ? lockdep_hardirqs_on+0x382/0x580 [ 27.025162][ T78] __device_attach+0x217/0x360 [ 27.029902][ T78] ? device_bind_driver+0xd0/0xd0 [ 27.034901][ T78] bus_probe_device+0x1e4/0x290 [ 27.039728][ T78] device_add+0x1480/0x1c20 [ 27.044207][ T78] ? wait_for_completion+0x3c0/0x3c0 [ 27.049469][ T78] ? device_links_flush_sync_list+0x350/0x350 [ 27.055516][ T78] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 27.061307][ T78] usb_set_configuration+0xe67/0x1740 [ 27.066698][ T78] generic_probe+0x9d/0xd5 [ 27.071105][ T78] usb_probe_device+0x99/0x100 [ 27.075852][ T78] ? usb_suspend+0x620/0x620 [ 27.080438][ T78] really_probe+0x281/0x6d0 [ 27.084922][ T78] driver_probe_device+0x104/0x210 [ 27.090013][ T78] __device_attach_driver+0x1c2/0x220 [ 27.095365][ T78] ? driver_allows_async_probing+0x160/0x160 [ 27.101319][ T78] bus_for_each_drv+0x162/0x1e0 [ 27.106143][ T78] ? bus_rescan_devices+0x20/0x20 [ 27.111155][ T78] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 27.116937][ T78] ? lockdep_hardirqs_on+0x382/0x580 [ 27.122210][ T78] __device_attach+0x217/0x360 [ 27.126950][ T78] ? device_bind_driver+0xd0/0xd0 [ 27.131960][ T78] bus_probe_device+0x1e4/0x290 [ 27.136784][ T78] device_add+0x1480/0x1c20 [ 27.141276][ T78] ? device_links_flush_sync_list+0x350/0x350 [ 27.147324][ T78] usb_new_device.cold+0x6a4/0xe79 [ 27.152438][ T78] hub_event+0x1e59/0x3860 [ 27.156854][ T78] ? hub_port_debounce+0x260/0x260 [ 27.161957][ T78] ? find_held_lock+0x2d/0x110 [ 27.166709][ T78] ? mark_held_locks+0xe0/0xe0 [ 27.171456][ T78] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 27.176986][ T78] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 27.182251][ T78] process_one_work+0x92b/0x1530 [ 27.187169][ T78] ? pwq_dec_nr_in_flight+0x310/0x310 [ 27.192521][ T78] ? do_raw_spin_lock+0x11a/0x280 [ 27.197537][ T78] worker_thread+0x96/0xe20 [ 27.202033][ T78] ? process_one_work+0x1530/0x1530 [ 27.207207][ T78] kthread+0x318/0x420 [ 27.211265][ T78] ? kthread_create_on_node+0xf0/0xf0 [ 27.216620][ T78] ret_from_fork+0x24/0x30 [ 27.221698][ T78] Kernel Offset: disabled [ 27.226055][ T78] Rebooting in 86400 seconds..