[....] 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[ 13.220160][ T1738] random: sshd: uninitialized urandom read (32 bytes read) [?25l[?1c7[ 13.297132][ T1746] random: sshd: uninitialized urandom read (32 bytes read) [ ok [ 13.317209][ C1] random: crng init done 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.5' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 30.871418][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 31.081056][ T94] usb 1-1: config index 0 descriptor too short (expected 1307, got 27) [ 31.089400][ T94] usb 1-1: config 0 has an invalid interface number: 148 but max is 0 [ 31.097592][ T94] usb 1-1: config 0 has no interface number 0 [ 31.103726][ T94] usb 1-1: config 0 interface 148 altsetting 0 endpoint 0x1 has an invalid bInterval 143, changing to 11 [ 31.115018][ T94] usb 1-1: config 0 interface 148 altsetting 0 endpoint 0x1 has invalid maxpacket 1976, setting to 1024 [ 31.126167][ T94] usb 1-1: New USB device found, idVendor=17e9, idProduct=c9ad, bcdDevice=38.3f [ 31.135228][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 31.144764][ T94] usb 1-1: config 0 descriptor?? [ 31.161074][ T1793] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 31.451015][ T94] udlfb 1-1:0.148: vendor descriptor not available (-71) [ 31.470968][ T94] usb 1-1: Read EDID byte 0 failed: -71 [ 31.490944][ T94] usb 1-1: Read EDID byte 0 failed: -71 [ 31.510965][ T94] usb 1-1: Read EDID byte 0 failed: -71 [ 31.516551][ T94] usb 1-1: Unable to get valid EDID from device/display [ 31.542748][ T94] ------------[ cut here ]------------ [ 31.548217][ T94] usb 1-1: BOGUS urb xfer, pipe 3 != type 1 [ 31.554360][ T94] WARNING: CPU: 0 PID: 94 at drivers/usb/core/urb.c:478 usb_submit_urb+0x1188/0x1460 [ 31.563809][ T94] Kernel panic - not syncing: panic_on_warn set ... [ 31.570383][ T94] CPU: 0 PID: 94 Comm: kworker/0:2 Not tainted 5.6.0-rc3-syzkaller #0 [ 31.578509][ T94] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.588549][ T94] Workqueue: usb_hub_wq hub_event [ 31.593550][ T94] Call Trace: [ 31.596829][ T94] dump_stack+0xef/0x16e [ 31.601100][ T94] ? usb_submit_urb+0x1090/0x1460 [ 31.606105][ T94] panic+0x2aa/0x6e1 [ 31.609984][ T94] ? add_taint.cold+0x16/0x16 [ 31.614644][ T94] ? __probe_kernel_read+0x188/0x1d0 [ 31.619908][ T94] ? __warn.cold+0x14/0x30 [ 31.624299][ T94] ? __warn+0xd5/0x1c8 [ 31.628345][ T94] ? usb_submit_urb+0x1188/0x1460 [ 31.633346][ T94] __warn.cold+0x2f/0x30 [ 31.637576][ T94] ? usb_submit_urb+0x1188/0x1460 [ 31.642581][ T94] report_bug+0x27b/0x2f0 [ 31.646898][ T94] do_error_trap+0x12b/0x1e0 [ 31.651467][ T94] ? usb_submit_urb+0x1188/0x1460 [ 31.656476][ T94] do_invalid_op+0x32/0x40 [ 31.660894][ T94] ? usb_submit_urb+0x1188/0x1460 [ 31.665915][ T94] invalid_op+0x23/0x30 [ 31.670054][ T94] RIP: 0010:usb_submit_urb+0x1188/0x1460 [ 31.675664][ T94] 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 [ 31.695255][ T94] RSP: 0018:ffff8881d5cbef10 EFLAGS: 00010286 [ 31.701338][ T94] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 [ 31.709323][ T94] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103ab97dd4 [ 31.717312][ T94] RBP: ffff8881cda5e100 R08: ffff8881d700e200 R09: fffffbfff1266c8f [ 31.725261][ T94] R10: fffffbfff1266c8e R11: ffffffff89336477 R12: 0000000000000003 [ 31.733208][ T94] R13: ffff8881cdba5de0 R14: ffff8881cdf860a0 R15: ffff8881d44b0b00 [ 31.741165][ T94] ? vprintk_func+0x7d/0x113 [ 31.745743][ T94] ? lockdep_hardirqs_on+0x382/0x580 [ 31.751015][ T94] dlfb_submit_urb+0x89/0x160 [ 31.755682][ T94] dlfb_set_video_mode+0x2249/0x29b0 [ 31.760954][ T94] dlfb_ops_set_par+0x2a3/0x810 [ 31.765781][ T94] ? dlfb_handle_damage+0x660/0x660 [ 31.770958][ T94] ? dlfb_usb_probe.cold+0xeaa/0x1ba3 [ 31.776327][ T94] ? kfree+0xd5/0x300 [ 31.780302][ T94] dlfb_usb_probe.cold+0xed2/0x1ba3 [ 31.785493][ T94] ? edid_store+0x180/0x180 [ 31.789978][ T94] ? __pm_runtime_resume+0x111/0x180 [ 31.795244][ T94] usb_probe_interface+0x310/0x800 [ 31.800337][ T94] ? usb_probe_device+0x230/0x230 [ 31.805340][ T94] really_probe+0x290/0xac0 [ 31.809839][ T94] driver_probe_device+0x223/0x350 [ 31.814932][ T94] __device_attach_driver+0x1d1/0x290 [ 31.820284][ T94] ? driver_allows_async_probing+0x160/0x160 [ 31.826248][ T94] bus_for_each_drv+0x162/0x1e0 [ 31.831079][ T94] ? bus_rescan_devices+0x20/0x20 [ 31.836079][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 31.841864][ T94] ? lockdep_hardirqs_on+0x382/0x580 [ 31.847131][ T94] __device_attach+0x217/0x390 [ 31.851874][ T94] ? device_bind_driver+0xd0/0xd0 [ 31.856916][ T94] bus_probe_device+0x1e4/0x290 [ 31.861757][ T94] device_add+0x1459/0x1bf0 [ 31.866253][ T94] ? wait_for_completion+0x3c0/0x3c0 [ 31.871515][ T94] ? device_link_remove+0x110/0x110 [ 31.876689][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 31.882474][ T94] usb_set_configuration+0xe47/0x17d0 [ 31.887868][ T94] usb_generic_driver_probe+0x9d/0xe0 [ 31.893218][ T94] usb_probe_device+0xd9/0x230 [ 31.897971][ T94] ? usb_suspend+0x5f0/0x5f0 [ 31.902536][ T94] really_probe+0x290/0xac0 [ 31.907018][ T94] driver_probe_device+0x223/0x350 [ 31.912118][ T94] __device_attach_driver+0x1d1/0x290 [ 31.917488][ T94] ? driver_allows_async_probing+0x160/0x160 [ 31.923462][ T94] bus_for_each_drv+0x162/0x1e0 [ 31.928299][ T94] ? bus_rescan_devices+0x20/0x20 [ 31.933357][ T94] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 31.939143][ T94] ? lockdep_hardirqs_on+0x382/0x580 [ 31.944407][ T94] __device_attach+0x217/0x390 [ 31.949171][ T94] ? device_bind_driver+0xd0/0xd0 [ 31.954171][ T94] bus_probe_device+0x1e4/0x290 [ 31.958998][ T94] device_add+0x1459/0x1bf0 [ 31.963478][ T94] ? device_link_remove+0x110/0x110 [ 31.968659][ T94] usb_new_device.cold+0x540/0xcd0 [ 31.973757][ T94] hub_event+0x21cb/0x4300 [ 31.978152][ T94] ? hub_port_debounce+0x350/0x350 [ 31.983273][ T94] ? find_held_lock+0x2d/0x110 [ 31.988014][ T94] ? mark_held_locks+0xe0/0xe0 [ 31.992760][ T94] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 31.998324][ T94] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 32.003592][ T94] process_one_work+0x94b/0x1620 [ 32.008507][ T94] ? pwq_dec_nr_in_flight+0x310/0x310 [ 32.013855][ T94] ? do_raw_spin_lock+0x129/0x290 [ 32.018873][ T94] worker_thread+0x96/0xe20 [ 32.023352][ T94] ? process_one_work+0x1620/0x1620 [ 32.028522][ T94] kthread+0x318/0x420 [ 32.032566][ T94] ? kthread_create_on_node+0xf0/0xf0 [ 32.037920][ T94] ret_from_fork+0x24/0x30 [ 32.043033][ T94] Kernel Offset: disabled [ 32.047395][ T94] Rebooting in 86400 seconds..