INIT: Entering runlevel: 2 [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[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.197' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.793653][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 30.883968][ T83] usb 1-1: Using ep0 maxpacket: 8 [ 31.004203][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid wMaxPacketSize 0 [ 31.014277][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x84 has an invalid bInterval 0, changing to 7 [ 31.027207][ T83] usb 1-1: New USB device found, idVendor=a257, idProduct=2013, bcdDevice=fc.a4 [ 31.037640][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.047346][ T83] usb 1-1: config 0 descriptor?? [ 31.085181][ T83] ------------[ cut here ]------------ [ 31.090835][ T83] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 31.098189][ T83] WARNING: CPU: 1 PID: 83 at drivers/usb/core/urb.c:478 usb_submit_urb+0x1188/0x1460 [ 31.108872][ T83] Kernel panic - not syncing: panic_on_warn set ... [ 31.115829][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.5.0-rc6-syzkaller #0 [ 31.124400][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.135557][ T83] Workqueue: usb_hub_wq hub_event [ 31.143609][ T83] Call Trace: [ 31.147047][ T83] dump_stack+0xef/0x16e [ 31.151425][ T83] ? usb_submit_urb+0x1110/0x1460 [ 31.157113][ T83] panic+0x2aa/0x6e1 [ 31.161066][ T83] ? add_taint.cold+0x16/0x16 [ 31.166936][ T83] ? __probe_kernel_read+0x188/0x1d0 [ 31.173248][ T83] ? __warn.cold+0x14/0x30 [ 31.178846][ T83] ? __warn+0xd5/0x1c8 [ 31.182924][ T83] ? usb_submit_urb+0x1188/0x1460 [ 31.188048][ T83] __warn.cold+0x2f/0x30 [ 31.192425][ T83] ? usb_submit_urb+0x1188/0x1460 [ 31.198216][ T83] report_bug+0x27b/0x2f0 [ 31.202682][ T83] do_error_trap+0x12b/0x1e0 [ 31.208251][ T83] ? usb_submit_urb+0x1188/0x1460 [ 31.213489][ T83] do_invalid_op+0x32/0x40 [ 31.217920][ T83] ? usb_submit_urb+0x1188/0x1460 [ 31.222969][ T83] invalid_op+0x23/0x30 [ 31.227133][ T83] RIP: 0010:usb_submit_urb+0x1188/0x1460 [ 31.232767][ T83] Code: 4d 85 ed 74 46 e8 a8 1c e1 fd 4c 89 f7 e8 90 87 17 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 60 27 3b 86 e8 30 03 b6 fd <0f> 0b e9 20 f4 ff ff e8 7c 1c e1 fd 0f 1f 44 00 00 e8 72 1c e1 fd [ 31.252671][ T83] RSP: 0018:ffff8881d8b07168 EFLAGS: 00010286 [ 31.258745][ T83] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 31.266820][ T83] RDX: 0000000000000000 RSI: ffffffff8129598d RDI: ffffed103b160e1f [ 31.274785][ T83] RBP: ffff8881d97a6c50 R08: ffff8881d8d6c980 R09: fffffbfff1269cae [ 31.283002][ T83] R10: fffffbfff1269cad R11: ffffffff8934e56f R12: 0000000000000003 [ 31.292383][ T83] R13: ffff8881d025b8b8 R14: ffff8881ce2ad0a0 R15: ffff8881d97a6a00 [ 31.300364][ T83] ? vprintk_func+0x7d/0x113 [ 31.304945][ T83] ? usb_submit_urb+0x1188/0x1460 [ 31.309961][ T83] ? kasan_unpoison_shadow+0x30/0x40 [ 31.315239][ T83] dln2_start_rx_urbs+0x66/0xd0 [ 31.320070][ T83] dln2_probe+0x664/0xb4c [ 31.324381][ T83] ? dln2_disconnect+0x110/0x110 [ 31.329309][ T83] ? rpm_callback+0x230/0x230 [ 31.333978][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 31.339341][ T83] ? __pm_runtime_resume+0x111/0x180 [ 31.344621][ T83] usb_probe_interface+0x310/0x800 [ 31.349714][ T83] ? usb_probe_device+0x140/0x140 [ 31.355064][ T83] really_probe+0x290/0xad0 [ 31.359557][ T83] driver_probe_device+0x223/0x350 [ 31.364759][ T83] __device_attach_driver+0x1d1/0x290 [ 31.370437][ T83] ? driver_allows_async_probing+0x160/0x160 [ 31.376423][ T83] bus_for_each_drv+0x162/0x1e0 [ 31.381294][ T83] ? bus_rescan_devices+0x20/0x20 [ 31.386328][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 31.392123][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 31.397460][ T83] __device_attach+0x217/0x390 [ 31.402215][ T83] ? device_bind_driver+0xd0/0xd0 [ 31.407246][ T83] bus_probe_device+0x1e4/0x290 [ 31.412103][ T83] device_add+0x1459/0x1bf0 [ 31.416763][ T83] ? wait_for_completion+0x3c0/0x3c0 [ 31.422032][ T83] ? device_link_remove+0x110/0x110 [ 31.427223][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 31.433634][ T83] usb_set_configuration+0xe47/0x17d0 [ 31.438988][ T83] generic_probe+0x9d/0xd5 [ 31.443396][ T83] usb_probe_device+0xaf/0x140 [ 31.448235][ T83] ? usb_suspend+0x5f0/0x5f0 [ 31.455532][ T83] really_probe+0x290/0xad0 [ 31.474698][ T83] driver_probe_device+0x223/0x350 [ 31.479791][ T83] __device_attach_driver+0x1d1/0x290 [ 31.485142][ T83] ? driver_allows_async_probing+0x160/0x160 [ 31.491108][ T83] bus_for_each_drv+0x162/0x1e0 [ 31.495936][ T83] ? bus_rescan_devices+0x20/0x20 [ 31.500978][ T83] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 31.506775][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 31.512040][ T83] __device_attach+0x217/0x390 [ 31.516791][ T83] ? device_bind_driver+0xd0/0xd0 [ 31.521805][ T83] bus_probe_device+0x1e4/0x290 [ 31.526641][ T83] device_add+0x1459/0x1bf0 [ 31.531130][ T83] ? device_link_remove+0x110/0x110 [ 31.536314][ T83] usb_new_device.cold+0x540/0xcd0 [ 31.541413][ T83] hub_event+0x21cb/0x4300 [ 31.545819][ T83] ? hub_port_debounce+0x350/0x350 [ 31.550907][ T83] ? find_held_lock+0x2d/0x110 [ 31.555660][ T83] ? mark_held_locks+0xe0/0xe0 [ 31.560403][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 31.565925][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 31.571199][ T83] process_one_work+0x945/0x15c0 [ 31.576118][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 31.581466][ T83] ? do_raw_spin_lock+0x129/0x290 [ 31.586470][ T83] worker_thread+0x96/0xe20 [ 31.590953][ T83] ? process_one_work+0x15c0/0x15c0 [ 31.596130][ T83] kthread+0x318/0x420 [ 31.600185][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 31.605540][ T83] ret_from_fork+0x24/0x30 [ 31.611426][ T83] Kernel Offset: disabled [ 31.615888][ T83] Rebooting in 86400 seconds..