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 '10.128.0.35' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.231943][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 29.322134][ T95] usb 1-1: Using ep0 maxpacket: 8 [ 29.442019][ T95] usb 1-1: config 0 has an invalid interface number: 196 but max is 0 [ 29.450605][ T95] usb 1-1: config 0 has no interface number 0 [ 29.456746][ T95] usb 1-1: config 0 interface 196 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 29.467474][ T95] usb 1-1: config 0 interface 196 altsetting 0 endpoint 0x1 has an invalid bInterval 0, changing to 7 [ 29.478813][ T95] usb 1-1: New USB device found, idVendor=17e9, idProduct=df82, bcdDevice=be.29 [ 29.487863][ T95] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.497506][ T95] usb 1-1: config 0 descriptor?? [ 29.542661][ T95] hub 1-1:0.196: bad descriptor, ignoring hub [ 29.549003][ T95] hub: probe of 1-1:0.196 failed with error -5 executing program [ 29.831946][ T95] udlfb 1-1:0.196: vendor descriptor not available (-71) [ 29.851914][ T95] usb 1-1: Read EDID byte 0 failed: -71 [ 29.871928][ T95] usb 1-1: Read EDID byte 0 failed: -71 [ 29.891961][ T95] usb 1-1: Read EDID byte 0 failed: -71 [ 29.897555][ T95] usb 1-1: Unable to get valid EDID from device/display [ 29.923284][ T95] ------------[ cut here ]------------ [ 29.928782][ T95] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 29.934917][ T95] WARNING: CPU: 0 PID: 95 at drivers/usb/core/urb.c:478 usb_submit_urb+0x1188/0x1460 [ 29.944373][ T95] Kernel panic - not syncing: panic_on_warn set ... [ 29.950957][ T95] CPU: 0 PID: 95 Comm: kworker/0:2 Not tainted 5.6.0-rc3-syzkaller #0 [ 29.959095][ T95] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.969171][ T95] Workqueue: usb_hub_wq hub_event [ 29.974286][ T95] Call Trace: [ 29.977568][ T95] dump_stack+0xef/0x16e [ 29.981827][ T95] ? usb_submit_urb+0x1090/0x1460 [ 29.987028][ T95] panic+0x2aa/0x6e1 [ 29.990908][ T95] ? add_taint.cold+0x16/0x16 [ 29.995566][ T95] ? __probe_kernel_read+0x188/0x1d0 [ 30.000838][ T95] ? __warn.cold+0x14/0x30 [ 30.005238][ T95] ? __warn+0xd5/0x1c8 [ 30.009285][ T95] ? usb_submit_urb+0x1188/0x1460 [ 30.014304][ T95] __warn.cold+0x2f/0x30 [ 30.018527][ T95] ? usb_submit_urb+0x1188/0x1460 [ 30.023548][ T95] report_bug+0x27b/0x2f0 [ 30.027867][ T95] do_error_trap+0x12b/0x1e0 [ 30.032453][ T95] ? usb_submit_urb+0x1188/0x1460 [ 30.037463][ T95] do_invalid_op+0x32/0x40 [ 30.041865][ T95] ? usb_submit_urb+0x1188/0x1460 [ 30.046923][ T95] invalid_op+0x23/0x30 [ 30.052101][ T95] RIP: 0010:usb_submit_urb+0x1188/0x1460 [ 30.057725][ 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 [ 30.077309][ T95] RSP: 0018:ffff8881d583ef10 EFLAGS: 00010286 [ 30.083363][ T95] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 30.091333][ T95] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab07dd4 [ 30.099286][ T95] RBP: ffff8881d4958000 R08: ffff8881d7046200 R09: fffffbfff1266c8f [ 30.107247][ T95] R10: fffffbfff1266c8e R11: ffffffff89336477 R12: 0000000000000003 [ 30.117018][ T95] R13: ffff8881d3a20e10 R14: ffff8881cdde60a0 R15: ffff8881d54e2300 [ 30.124980][ T95] ? vprintk_func+0x7d/0x113 [ 30.129552][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 30.134814][ T95] dlfb_submit_urb+0x89/0x160 [ 30.139481][ T95] dlfb_set_video_mode+0x2249/0x29b0 [ 30.144755][ T95] dlfb_ops_set_par+0x2a3/0x810 [ 30.149604][ T95] ? dlfb_handle_damage+0x660/0x660 [ 30.154786][ T95] ? dlfb_usb_probe.cold+0xeaa/0x1ba3 [ 30.160146][ T95] ? kfree+0xd5/0x300 [ 30.164111][ T95] dlfb_usb_probe.cold+0xed2/0x1ba3 [ 30.169451][ T95] ? edid_store+0x180/0x180 [ 30.173943][ T95] ? __pm_runtime_resume+0x111/0x180 [ 30.179213][ T95] usb_probe_interface+0x310/0x800 [ 30.184307][ T95] ? usb_probe_device+0x230/0x230 [ 30.189309][ T95] really_probe+0x290/0xac0 [ 30.193788][ T95] driver_probe_device+0x223/0x350 [ 30.198893][ T95] __device_attach_driver+0x1d1/0x290 [ 30.204263][ T95] ? driver_allows_async_probing+0x160/0x160 [ 30.210361][ T95] bus_for_each_drv+0x162/0x1e0 [ 30.215210][ T95] ? bus_rescan_devices+0x20/0x20 [ 30.220244][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.226046][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 30.231309][ T95] __device_attach+0x217/0x390 [ 30.236051][ T95] ? device_bind_driver+0xd0/0xd0 [ 30.241063][ T95] bus_probe_device+0x1e4/0x290 [ 30.245890][ T95] device_add+0x1459/0x1bf0 [ 30.250382][ T95] ? wait_for_completion+0x3c0/0x3c0 [ 30.255654][ T95] ? device_link_remove+0x110/0x110 [ 30.260833][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.266616][ T95] usb_set_configuration+0xe47/0x17d0 [ 30.271968][ T95] usb_generic_driver_probe+0x9d/0xe0 [ 30.277316][ T95] usb_probe_device+0xd9/0x230 [ 30.282069][ T95] ? usb_suspend+0x5f0/0x5f0 [ 30.286645][ T95] really_probe+0x290/0xac0 [ 30.291136][ T95] driver_probe_device+0x223/0x350 [ 30.296233][ T95] __device_attach_driver+0x1d1/0x290 [ 30.301593][ T95] ? driver_allows_async_probing+0x160/0x160 [ 30.307648][ T95] bus_for_each_drv+0x162/0x1e0 [ 30.312854][ T95] ? bus_rescan_devices+0x20/0x20 [ 30.317863][ T95] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 30.323661][ T95] ? lockdep_hardirqs_on+0x382/0x580 [ 30.328930][ T95] __device_attach+0x217/0x390 [ 30.333677][ T95] ? device_bind_driver+0xd0/0xd0 [ 30.338692][ T95] bus_probe_device+0x1e4/0x290 [ 30.343614][ T95] device_add+0x1459/0x1bf0 [ 30.348098][ T95] ? device_link_remove+0x110/0x110 [ 30.353373][ T95] usb_new_device.cold+0x540/0xcd0 [ 30.358461][ T95] hub_event+0x21cb/0x4300 [ 30.362856][ T95] ? hub_port_debounce+0x350/0x350 [ 30.367944][ T95] ? find_held_lock+0x2d/0x110 [ 30.372692][ T95] ? mark_held_locks+0xe0/0xe0 [ 30.377450][ T95] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 30.382973][ T95] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 30.388257][ T95] process_one_work+0x94b/0x1620 [ 30.393190][ T95] ? pwq_dec_nr_in_flight+0x310/0x310 [ 30.398553][ T95] ? do_raw_spin_lock+0x129/0x290 [ 30.404175][ T95] worker_thread+0x96/0xe20 [ 30.408665][ T95] ? process_one_work+0x1620/0x1620 [ 30.413897][ T95] kthread+0x318/0x420 [ 30.418220][ T95] ? kthread_create_on_node+0xf0/0xf0 [ 30.423927][ T95] ret_from_fork+0x24/0x30 [ 30.429111][ T95] Kernel Offset: disabled [ 30.433490][ T95] Rebooting in 86400 seconds..