[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 16.128799][ C1] random: crng init done [....] 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 '10.128.10.29' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.953861][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 54.193832][ T12] usb 1-1: Using ep0 maxpacket: 32 [ 54.313946][ T12] usb 1-1: config 105 has an invalid interface number: 125 but max is 0 [ 54.322651][ T12] usb 1-1: config 105 has no interface number 0 [ 54.329143][ T12] usb 1-1: config 105 interface 125 altsetting 0 endpoint 0x7 has invalid maxpacket 518, setting to 64 [ 54.340200][ T12] usb 1-1: config 105 interface 125 altsetting 0 bulk endpoint 0xE has invalid maxpacket 517 [ 54.350477][ T12] usb 1-1: config 105 interface 125 altsetting 0 endpoint 0x1 has an invalid bInterval 143, changing to 11 [ 54.361907][ T12] usb 1-1: config 105 interface 125 altsetting 0 endpoint 0xC has invalid maxpacket 130, setting to 64 [ 54.523938][ T12] usb 1-1: New USB device found, idVendor=17e9, idProduct=03bc, bcdDevice=39.2f [ 54.533000][ T12] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 54.541165][ T12] usb 1-1: Product: syz [ 54.545353][ T12] usb 1-1: Manufacturer: syz [ 54.550068][ T12] usb 1-1: SerialNumber: syz executing program [ 54.943893][ T12] udlfb 1-1:105.125: vendor descriptor not available (-71) [ 54.963869][ T12] usb 1-1: Read EDID byte 0 failed: -71 [ 54.983932][ T12] usb 1-1: Read EDID byte 0 failed: -71 [ 55.003861][ T12] usb 1-1: Read EDID byte 0 failed: -71 [ 55.009511][ T12] usb 1-1: Unable to get valid EDID from device/display [ 55.035699][ T12] ------------[ cut here ]------------ [ 55.041186][ T12] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 55.047390][ T12] WARNING: CPU: 0 PID: 12 at drivers/usb/core/urb.c:477 usb_submit_urb+0x1188/0x13b0 [ 55.056844][ T12] Kernel panic - not syncing: panic_on_warn set ... [ 55.063602][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.3.0-rc7+ #0 [ 55.070992][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 55.081067][ T12] Workqueue: usb_hub_wq hub_event [ 55.086093][ T12] Call Trace: [ 55.089389][ T12] dump_stack+0xca/0x13e [ 55.093627][ T12] ? usb_submit_urb+0x10c0/0x13b0 [ 55.098997][ T12] panic+0x2a3/0x6da [ 55.102886][ T12] ? add_taint.cold+0x16/0x16 [ 55.107643][ T12] ? __probe_kernel_read+0x188/0x1d0 [ 55.112925][ T12] ? __warn.cold+0x5/0x4a [ 55.117340][ T12] ? __warn+0xe3/0x1e0 [ 55.121411][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 55.126425][ T12] __warn.cold+0x20/0x4a [ 55.130663][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 55.135684][ T12] report_bug+0x262/0x2a0 [ 55.140023][ T12] do_error_trap+0x12b/0x1e0 [ 55.144612][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 55.149627][ T12] do_invalid_op+0x32/0x40 [ 55.154030][ T12] ? usb_submit_urb+0x1188/0x13b0 [ 55.159258][ T12] invalid_op+0x23/0x30 [ 55.163454][ T12] RIP: 0010:usb_submit_urb+0x1188/0x13b0 [ 55.169077][ T12] Code: 4d 85 ed 74 2c e8 f8 8e ef fd 4c 89 f7 e8 e0 b1 1c ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 20 85 18 86 e8 1d 74 c5 fd <0f> 0b e9 20 f4 ff ff e8 cc 8e ef fd 4c 89 f2 48 b8 00 00 00 00 00 [ 55.188760][ T12] RSP: 0018:ffff8881da20ef90 EFLAGS: 00010282 [ 55.194817][ T12] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 55.202877][ T12] RDX: 0000000000000000 RSI: ffffffff81288ddd RDI: ffffed103b441de4 [ 55.210852][ T12] RBP: ffff8881d2f09c20 R08: ffff8881da1f9800 R09: fffffbfff11ad79a [ 55.218813][ T12] R10: fffffbfff11ad799 R11: ffffffff88d6bccf R12: 0000000000000003 [ 55.226966][ T12] R13: ffff8881cf7c6b58 R14: ffff8881d5fc1a20 R15: ffff8881d59a7200 [ 55.235131][ T12] ? vprintk_func+0x7d/0x113 [ 55.239729][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 55.245128][ T12] dlfb_submit_urb+0x89/0x160 [ 55.249793][ T12] dlfb_set_video_mode+0x2249/0x29b0 [ 55.255163][ T12] dlfb_ops_set_par+0x2a3/0x810 [ 55.260016][ T12] ? dlfb_handle_damage+0x660/0x660 [ 55.265196][ T12] ? dlfb_usb_probe.cold+0xc45/0x190a [ 55.270558][ T12] ? kfree+0xe4/0x2f0 [ 55.274539][ T12] dlfb_usb_probe.cold+0xc6d/0x190a [ 55.279924][ T12] ? edid_store+0x180/0x180 [ 55.284536][ T12] ? __pm_runtime_resume+0x111/0x180 [ 55.289806][ T12] usb_probe_interface+0x305/0x7a0 [ 55.294935][ T12] ? usb_probe_device+0x100/0x100 [ 55.299959][ T12] really_probe+0x281/0x6d0 [ 55.304474][ T12] driver_probe_device+0x101/0x1b0 [ 55.309591][ T12] __device_attach_driver+0x1c2/0x220 [ 55.314951][ T12] ? driver_allows_async_probing+0x160/0x160 [ 55.321133][ T12] bus_for_each_drv+0x162/0x1e0 [ 55.326057][ T12] ? bus_rescan_devices+0x20/0x20 [ 55.331185][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 55.336979][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 55.342248][ T12] __device_attach+0x217/0x360 [ 55.346996][ T12] ? device_bind_driver+0xd0/0xd0 [ 55.352017][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 55.357290][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 55.362656][ T12] bus_probe_device+0x1e4/0x290 [ 55.367510][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 55.373403][ T12] device_add+0xae6/0x16f0 [ 55.377823][ T12] ? uevent_store+0x50/0x50 [ 55.382326][ T12] usb_set_configuration+0xdf6/0x1670 [ 55.387699][ T12] generic_probe+0x9d/0xd5 [ 55.392229][ T12] usb_probe_device+0x99/0x100 [ 55.397007][ T12] ? usb_suspend+0x620/0x620 [ 55.401603][ T12] really_probe+0x281/0x6d0 [ 55.406105][ T12] driver_probe_device+0x101/0x1b0 [ 55.411205][ T12] __device_attach_driver+0x1c2/0x220 [ 55.416568][ T12] ? driver_allows_async_probing+0x160/0x160 [ 55.422636][ T12] bus_for_each_drv+0x162/0x1e0 [ 55.427471][ T12] ? bus_rescan_devices+0x20/0x20 [ 55.432486][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 55.438301][ T12] ? lockdep_hardirqs_on+0x379/0x580 [ 55.443577][ T12] __device_attach+0x217/0x360 [ 55.448327][ T12] ? device_bind_driver+0xd0/0xd0 [ 55.453334][ T12] ? kobject_uevent_env+0x29e/0x1150 [ 55.458709][ T12] ? kobject_uevent_env+0x2a8/0x1150 [ 55.463989][ T12] bus_probe_device+0x1e4/0x290 [ 55.468826][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 55.474705][ T12] device_add+0xae6/0x16f0 [ 55.479129][ T12] ? uevent_store+0x50/0x50 [ 55.483872][ T12] usb_new_device.cold+0x6a4/0xe79 [ 55.488996][ T12] hub_event+0x1b5c/0x3640 [ 55.493424][ T12] ? hub_port_debounce+0x260/0x260 [ 55.498523][ T12] process_one_work+0x92b/0x1530 [ 55.503445][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 55.508856][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 55.513876][ T12] worker_thread+0x96/0xe20 [ 55.518362][ T12] ? process_one_work+0x1530/0x1530 [ 55.523719][ T12] kthread+0x318/0x420 [ 55.527793][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 55.533211][ T12] ret_from_fork+0x24/0x30 [ 55.538952][ T12] Kernel Offset: disabled [ 55.543311][ T12] Rebooting in 86400 seconds..