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 '10.128.0.119' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 25.885428][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 26.125345][ T22] usb 1-1: Using ep0 maxpacket: 8 [ 26.245468][ T22] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 256 [ 26.256789][ T22] usb 1-1: New USB device found, idVendor=054c, idProduct=06c3, bcdDevice=bc.72 [ 26.265904][ T22] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 26.275146][ T22] usb 1-1: config 0 descriptor?? [ 26.295563][ T1716] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 26.335340][ C1] port100 1-1:0.0: NFC: Urb failure (status -71) [ 26.342637][ T22] ------------[ cut here ]------------ [ 26.348606][ T22] URB 000000007bfb3747 submitted while active [ 26.355015][ T22] WARNING: CPU: 1 PID: 22 at drivers/usb/core/urb.c:363 usb_submit_urb+0x10c1/0x13b0 [ 26.365331][ T22] Kernel panic - not syncing: panic_on_warn set ... [ 26.371991][ T22] CPU: 1 PID: 22 Comm: kworker/1:1 Not tainted 5.5.0-rc2-syzkaller #0 [ 26.380251][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 26.390510][ T22] Workqueue: usb_hub_wq hub_event [ 26.395522][ T22] Call Trace: [ 26.398807][ T22] dump_stack+0xef/0x16e [ 26.411465][ T22] ? usb_submit_urb+0x1040/0x13b0 [ 26.417472][ T22] panic+0x2aa/0x6e1 [ 26.421357][ T22] ? add_taint.cold+0x16/0x16 [ 26.426024][ T22] ? __probe_kernel_read+0x188/0x1d0 [ 26.431299][ T22] ? __warn.cold+0x14/0x30 [ 26.435738][ T22] ? __warn+0xd5/0x1c8 [ 26.439794][ T22] ? usb_submit_urb+0x10c1/0x13b0 [ 26.444802][ T22] __warn.cold+0x2f/0x30 [ 26.449067][ T22] ? usb_submit_urb+0x10c1/0x13b0 [ 26.454286][ T22] report_bug+0x27b/0x2f0 [ 26.458608][ T22] do_error_trap+0x12b/0x1e0 [ 26.470653][ T22] ? usb_submit_urb+0x10c1/0x13b0 [ 26.475710][ T22] do_invalid_op+0x32/0x40 [ 26.480116][ T22] ? usb_submit_urb+0x10c1/0x13b0 [ 26.485128][ T22] invalid_op+0x23/0x30 [ 26.499116][ T22] RIP: 0010:usb_submit_urb+0x10c1/0x13b0 [ 26.504736][ T22] Code: 89 de e8 72 92 e7 fd 84 db 0f 85 42 f6 ff ff e8 35 91 e7 fd 4c 89 fe 48 c7 c7 00 59 15 86 c6 05 20 c3 4e 04 01 e8 e7 ad bc fd <0f> 0b e9 20 f6 ff ff c7 44 24 14 01 00 00 00 e9 d7 f6 ff ff 41 bd [ 26.524709][ T22] RSP: 0018:ffff8881d8c370e0 EFLAGS: 00010286 [ 26.530770][ T22] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 [ 26.538820][ T22] RDX: 0000000000000000 RSI: ffffffff81295dad RDI: ffffed103b186e0e [ 26.546919][ T22] RBP: ffff8881d32c5f80 R08: ffff8881da24e200 R09: ffffed103b66439f [ 26.554976][ T22] R10: ffffed103b66439e R11: ffff8881db321cf3 R12: ffff8881d5aabb00 [ 26.564231][ T22] R13: 00000000fffffff0 R14: ffff8881d2037448 R15: ffff8881d5aab800 [ 26.572315][ T22] ? vprintk_func+0x7d/0x113 [ 26.582981][ T22] ? kasan_unpoison_shadow+0x30/0x40 [ 26.588394][ T22] port100_send_cmd_async+0x801/0xb80 [ 26.593826][ T22] port100_send_cmd_sync+0xaa/0x130 [ 26.599078][ T22] ? port100_in_send_cmd+0x1c0/0x1c0 [ 26.604386][ T22] ? __alloc_skb+0x3a7/0x5a0 [ 26.609029][ T22] ? skb_put+0x15d/0x1c0 [ 26.613293][ T22] port100_probe+0xa12/0xea0 [ 26.618574][ T22] usb_probe_interface+0x305/0x7a0 [ 26.623817][ T22] ? usb_probe_device+0x100/0x100 [ 26.628954][ T22] really_probe+0x281/0x6d0 [ 26.633577][ T22] driver_probe_device+0x104/0x210 [ 26.638719][ T22] __device_attach_driver+0x1c2/0x220 [ 26.644201][ T22] ? driver_allows_async_probing+0x160/0x160 [ 26.650292][ T22] bus_for_each_drv+0x162/0x1e0 [ 26.655174][ T22] ? bus_rescan_devices+0x20/0x20 [ 26.660284][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.666131][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 26.671572][ T22] __device_attach+0x217/0x360 [ 26.676527][ T22] ? device_bind_driver+0xd0/0xd0 [ 26.682454][ T22] bus_probe_device+0x1e4/0x290 [ 26.687331][ T22] device_add+0x1480/0x1c20 [ 26.691860][ T22] ? wait_for_completion+0x3c0/0x3c0 [ 26.697176][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 26.703546][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.709467][ T22] usb_set_configuration+0xe67/0x1740 [ 26.714972][ T22] generic_probe+0x9d/0xd5 [ 26.719535][ T22] usb_probe_device+0x99/0x100 [ 26.724332][ T22] ? usb_suspend+0x620/0x620 [ 26.728917][ T22] really_probe+0x281/0x6d0 [ 26.733413][ T22] driver_probe_device+0x104/0x210 [ 26.738557][ T22] __device_attach_driver+0x1c2/0x220 [ 26.743916][ T22] ? driver_allows_async_probing+0x160/0x160 [ 26.749885][ T22] bus_for_each_drv+0x162/0x1e0 [ 26.754722][ T22] ? bus_rescan_devices+0x20/0x20 [ 26.759910][ T22] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.765705][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 26.771425][ T22] __device_attach+0x217/0x360 [ 26.776430][ T22] ? device_bind_driver+0xd0/0xd0 [ 26.781531][ T22] bus_probe_device+0x1e4/0x290 [ 26.786517][ T22] device_add+0x1480/0x1c20 [ 26.791343][ T22] ? device_links_flush_sync_list+0x350/0x350 [ 26.798084][ T22] usb_new_device.cold+0x6a4/0xe79 [ 26.803377][ T22] hub_event+0x1e59/0x3860 [ 26.807924][ T22] ? hub_port_debounce+0x260/0x260 [ 26.813025][ T22] ? find_held_lock+0x2d/0x110 [ 26.817897][ T22] ? mark_held_locks+0xe0/0xe0 [ 26.822709][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 26.828494][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 26.833801][ T22] process_one_work+0x92b/0x1530 [ 26.838818][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 26.844432][ T22] ? do_raw_spin_lock+0x11a/0x280 [ 26.849522][ T22] worker_thread+0x96/0xe20 [ 26.854179][ T22] ? process_one_work+0x1530/0x1530 [ 26.859684][ T22] kthread+0x318/0x420 [ 26.863860][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 26.869239][ T22] ret_from_fork+0x24/0x30 [ 26.874500][ T22] Kernel Offset: disabled [ 26.878870][ T22] Rebooting in 86400 seconds..