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 '10.128.0.250' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 27.731673][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 27.821838][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 27.941712][ T12] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 256 [ 27.951892][ T12] usb 1-1: New USB device found, idVendor=054c, idProduct=06c3, bcdDevice=bc.72 [ 27.961264][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 27.970759][ T12] usb 1-1: config 0 descriptor?? [ 27.991819][ T1793] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 28.031575][ C0] port100 1-1:0.0: NFC: Urb failure (status -71) [ 28.038443][ T12] ------------[ cut here ]------------ [ 28.044169][ T12] URB 00000000b1a1c125 submitted while active [ 28.050431][ T12] WARNING: CPU: 0 PID: 12 at drivers/usb/core/urb.c:363 usb_submit_urb+0x10c1/0x1460 [ 28.060002][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 28.066570][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.5.0-syzkaller #0 [ 28.074358][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 28.084426][ T12] Workqueue: usb_hub_wq hub_event [ 28.089441][ T12] Call Trace: [ 28.092727][ T12] dump_stack+0xef/0x16e [ 28.096950][ T12] ? usb_submit_urb+0xfd0/0x1460 [ 28.101881][ T12] panic+0x2aa/0x6e1 [ 28.105790][ T12] ? add_taint.cold+0x16/0x16 [ 28.110470][ T12] ? __probe_kernel_read+0x188/0x1d0 [ 28.115855][ T12] ? __warn.cold+0x14/0x30 [ 28.120256][ T12] ? __warn+0xd5/0x1c8 [ 28.124320][ T12] ? usb_submit_urb+0x10c1/0x1460 [ 28.129355][ T12] __warn.cold+0x2f/0x30 [ 28.133597][ T12] ? usb_submit_urb+0x10c1/0x1460 [ 28.138779][ T12] report_bug+0x27b/0x2f0 [ 28.143113][ T12] do_error_trap+0x12b/0x1e0 [ 28.147708][ T12] ? usb_submit_urb+0x10c1/0x1460 [ 28.152731][ T12] do_invalid_op+0x32/0x40 [ 28.157132][ T12] ? usb_submit_urb+0x10c1/0x1460 [ 28.162134][ T12] invalid_op+0x23/0x30 [ 28.166267][ T12] RIP: 0010:usb_submit_urb+0x10c1/0x1460 [ 28.173097][ T12] Code: 89 de e8 82 5f df fd 84 db 0f 85 42 f6 ff ff e8 45 5e df fd 4c 89 fe 48 c7 c7 00 b8 3b 86 c6 05 50 c2 7b 04 01 e8 a7 f0 b3 fd <0f> 0b e9 20 f6 ff ff c7 44 24 14 01 00 00 00 e9 d7 f6 ff ff 41 bd [ 28.192746][ T12] RSP: 0018:ffff8881da2270d0 EFLAGS: 00010282 [ 28.198887][ T12] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 28.206859][ T12] RDX: 0000000000000000 RSI: ffffffff8129660d RDI: ffffed103b444e0c [ 28.214825][ T12] RBP: ffff8881cf3d2800 R08: ffff8881da211880 R09: ffffed103b64439f [ 28.222789][ T12] R10: ffffed103b64439e R11: ffff8881db221cf3 R12: ffff8881cfc3e500 [ 28.230949][ T12] R13: 00000000fffffff0 R14: ffff8881d13fa858 R15: ffff8881d488e500 [ 28.238923][ T12] ? vprintk_func+0x7d/0x113 [ 28.243496][ T12] ? kasan_unpoison_shadow+0x30/0x40 [ 28.248758][ T12] port100_send_cmd_async+0x7fd/0xbe0 [ 28.254105][ T12] port100_send_cmd_sync+0xaa/0x130 [ 28.259281][ T12] ? port100_in_send_cmd+0x1c0/0x1c0 [ 28.264545][ T12] ? __alloc_skb+0x3a7/0x5a0 [ 28.269127][ T12] ? skb_put+0x15d/0x1c0 [ 28.273345][ T12] port100_probe+0xa12/0xea0 [ 28.277911][ T12] usb_probe_interface+0x310/0x800 [ 28.282999][ T12] ? usb_probe_device+0x140/0x140 [ 28.288001][ T12] really_probe+0x290/0xac0 [ 28.292481][ T12] driver_probe_device+0x223/0x350 [ 28.297578][ T12] __device_attach_driver+0x1d1/0x290 [ 28.302931][ T12] ? driver_allows_async_probing+0x160/0x160 [ 28.308986][ T12] bus_for_each_drv+0x162/0x1e0 [ 28.313810][ T12] ? bus_rescan_devices+0x20/0x20 [ 28.318895][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.324680][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 28.329955][ T12] __device_attach+0x217/0x390 [ 28.334698][ T12] ? device_bind_driver+0xd0/0xd0 [ 28.339703][ T12] bus_probe_device+0x1e4/0x290 [ 28.344530][ T12] device_add+0x1459/0x1bf0 [ 28.349047][ T12] ? wait_for_completion+0x3c0/0x3c0 [ 28.354328][ T12] ? device_link_remove+0x110/0x110 [ 28.359512][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.365304][ T12] usb_set_configuration+0xe47/0x17d0 [ 28.370672][ T12] generic_probe+0x9d/0xd5 [ 28.375075][ T12] usb_probe_device+0xaf/0x140 [ 28.379841][ T12] ? usb_suspend+0x5f0/0x5f0 [ 28.384427][ T12] really_probe+0x290/0xac0 [ 28.388926][ T12] driver_probe_device+0x223/0x350 [ 28.394026][ T12] __device_attach_driver+0x1d1/0x290 [ 28.399496][ T12] ? driver_allows_async_probing+0x160/0x160 [ 28.405456][ T12] bus_for_each_drv+0x162/0x1e0 [ 28.410299][ T12] ? bus_rescan_devices+0x20/0x20 [ 28.415299][ T12] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 28.421080][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 28.426364][ T12] __device_attach+0x217/0x390 [ 28.431141][ T12] ? device_bind_driver+0xd0/0xd0 [ 28.436184][ T12] bus_probe_device+0x1e4/0x290 [ 28.441014][ T12] device_add+0x1459/0x1bf0 [ 28.445498][ T12] ? device_link_remove+0x110/0x110 [ 28.450681][ T12] usb_new_device.cold+0x540/0xcd0 [ 28.455791][ T12] hub_event+0x21cb/0x4300 [ 28.460194][ T12] ? hub_port_debounce+0x350/0x350 [ 28.465294][ T12] ? find_held_lock+0x2d/0x110 [ 28.470055][ T12] ? mark_held_locks+0xe0/0xe0 [ 28.474806][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 28.480466][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 28.485751][ T12] process_one_work+0x94b/0x1620 [ 28.490672][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 28.496210][ T12] ? do_raw_spin_lock+0x129/0x290 [ 28.501217][ T12] worker_thread+0x96/0xe20 [ 28.505705][ T12] ? process_one_work+0x1620/0x1620 [ 28.510884][ T12] kthread+0x318/0x420 [ 28.514933][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 28.520292][ T12] ret_from_fork+0x24/0x30 [ 28.525510][ T12] Kernel Offset: disabled [ 28.530083][ T12] Rebooting in 86400 seconds..