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 '10.128.0.247' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 87.976854][ T95] usb 1-1: new low-speed USB device number 2 using dummy_hcd [ 88.336907][ T95] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 88.347204][ T95] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x81 is Bulk; changing to Interrupt [ 88.357151][ T95] usb 1-1: New USB device found, idVendor=1690, idProduct=0710, bcdDevice=c0.56 [ 88.366231][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 88.376057][ T95] usb 1-1: config 0 descriptor?? [ 88.397056][ T1792] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 88.419116][ T95] ------------[ cut here ]------------ [ 88.424695][ T95] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 88.430838][ T95] WARNING: CPU: 1 PID: 95 at drivers/usb/core/urb.c:478 usb_submit_urb+0x1188/0x1460 [ 88.440289][ T95] Kernel panic - not syncing: panic_on_warn set ... [ 88.446874][ T95] CPU: 1 PID: 95 Comm: kworker/1:2 Not tainted 5.6.0-rc3-syzkaller #0 [ 88.455018][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 88.465068][ T95] Workqueue: usb_hub_wq hub_event [ 88.470071][ T95] Call Trace: [ 88.473337][ T95] dump_stack+0xef/0x16e [ 88.477558][ T95] ? usb_submit_urb+0x1090/0x1460 [ 88.482558][ T95] panic+0x2aa/0x6e1 [ 88.486429][ T95] ? add_taint.cold+0x16/0x16 [ 88.491084][ T95] ? __probe_kernel_read+0x188/0x1d0 [ 88.496343][ T95] ? __warn.cold+0x14/0x30 [ 88.500812][ T95] ? __warn+0xd5/0x1c8 [ 88.504873][ T95] ? usb_submit_urb+0x1188/0x1460 [ 88.509908][ T95] __warn.cold+0x2f/0x30 [ 88.514147][ T95] ? usb_submit_urb+0x1188/0x1460 [ 88.519207][ T95] report_bug+0x27b/0x2f0 [ 88.523619][ T95] do_error_trap+0x12b/0x1e0 [ 88.528193][ T95] ? usb_submit_urb+0x1188/0x1460 [ 88.533197][ T95] do_invalid_op+0x32/0x40 [ 88.537598][ T95] ? usb_submit_urb+0x1188/0x1460 [ 88.542697][ T95] invalid_op+0x23/0x30 [ 88.546858][ T95] RIP: 0010:usb_submit_urb+0x1188/0x1460 [ 88.552645][ T95] Code: 4d 85 ed 74 46 e8 18 ce dd fd 4c 89 f7 e8 d0 5c 17 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 e0 e7 3b 86 e8 a0 5f b2 fd <0f> 0b e9 20 f4 ff ff e8 ec cd dd fd 0f 1f 44 00 00 e8 e2 cd dd fd [ 88.572243][ T95] RSP: 0018:ffff8881d58970f0 EFLAGS: 00010282 [ 88.578286][ T95] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 88.586245][ T95] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab12e10 [ 88.594483][ T95] RBP: ffff8881cf6f4b00 R08: ffff8881d7363100 R09: fffffbfff1266c8f [ 88.602434][ T95] R10: fffffbfff1266c8e R11: ffffffff89336477 R12: 0000000000000003 [ 88.610383][ T95] R13: ffff8881d46e3858 R14: ffff8881ce6d00a0 R15: ffff8881d971cc00 [ 88.618357][ T95] ? vprintk_func+0x7d/0x113 [ 88.622951][ T95] ar5523_submit_rx_cmd+0x1fa/0x320 [ 88.628339][ T95] ar5523_probe+0xbb1/0x1ad0 [ 88.633055][ T95] ? ar5523_data_rx_cb+0x10d0/0x10d0 [ 88.638349][ T95] ? __pm_runtime_set_status+0x5d5/0xa10 [ 88.643979][ T95] ? rpm_callback+0x230/0x230 [ 88.648653][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 88.653972][ T95] ? __pm_runtime_resume+0x111/0x180 [ 88.659258][ T95] usb_probe_interface+0x310/0x800 [ 88.664367][ T95] ? usb_probe_device+0x230/0x230 [ 88.669384][ T95] really_probe+0x290/0xac0 [ 88.673878][ T95] driver_probe_device+0x223/0x350 [ 88.678989][ T95] __device_attach_driver+0x1d1/0x290 [ 88.684530][ T95] ? driver_allows_async_probing+0x160/0x160 [ 88.690486][ T95] bus_for_each_drv+0x162/0x1e0 [ 88.695322][ T95] ? bus_rescan_devices+0x20/0x20 [ 88.701815][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 88.707610][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 88.712878][ T95] __device_attach+0x217/0x390 [ 88.717617][ T95] ? device_bind_driver+0xd0/0xd0 [ 88.722719][ T95] bus_probe_device+0x1e4/0x290 [ 88.727546][ T95] device_add+0x1459/0x1bf0 [ 88.732024][ T95] ? wait_for_completion+0x3c0/0x3c0 [ 88.737291][ T95] ? device_link_remove+0x110/0x110 [ 88.742562][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 88.748431][ T95] usb_set_configuration+0xe47/0x17d0 [ 88.753788][ T95] usb_generic_driver_probe+0x9d/0xe0 [ 88.759133][ T95] usb_probe_device+0xd9/0x230 [ 88.764575][ T95] ? usb_suspend+0x5f0/0x5f0 [ 88.769139][ T95] really_probe+0x290/0xac0 [ 88.773642][ T95] driver_probe_device+0x223/0x350 [ 88.778750][ T95] __device_attach_driver+0x1d1/0x290 [ 88.784134][ T95] ? driver_allows_async_probing+0x160/0x160 [ 88.790566][ T95] bus_for_each_drv+0x162/0x1e0 [ 88.795492][ T95] ? bus_rescan_devices+0x20/0x20 [ 88.800500][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 88.806307][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 88.811580][ T95] __device_attach+0x217/0x390 [ 88.816338][ T95] ? device_bind_driver+0xd0/0xd0 [ 88.821347][ T95] bus_probe_device+0x1e4/0x290 [ 88.826184][ T95] device_add+0x1459/0x1bf0 [ 88.830752][ T95] ? device_link_remove+0x110/0x110 [ 88.835938][ T95] usb_new_device.cold+0x540/0xcd0 [ 88.841037][ T95] hub_event+0x21cb/0x4300 [ 88.846036][ T95] ? hub_port_debounce+0x350/0x350 [ 88.851124][ T95] ? find_held_lock+0x2d/0x110 [ 88.855873][ T95] ? mark_held_locks+0xe0/0xe0 [ 88.860616][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 88.866136][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 88.871397][ T95] process_one_work+0x94b/0x1620 [ 88.876310][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 88.881658][ T95] ? do_raw_spin_lock+0x129/0x290 [ 88.886773][ T95] worker_thread+0x96/0xe20 [ 88.891269][ T95] ? process_one_work+0x1620/0x1620 [ 88.896470][ T95] kthread+0x318/0x420 [ 88.900538][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 88.905903][ T95] ret_from_fork+0x24/0x30 [ 88.911338][ T95] Kernel Offset: disabled [ 88.915721][ T95] Rebooting in 86400 seconds..