[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. [ 14.579430][ C1] random: crng init done [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.235' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 39.005679][ T12] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 39.245626][ T12] usb 1-1: Using ep0 maxpacket: 8 [ 39.365762][ T12] usb 1-1: New USB device found, idVendor=0af7, idProduct=0101, bcdDevice=5c.31 [ 39.374976][ T12] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 39.384357][ T12] usb 1-1: config 0 descriptor?? [ 39.437603][ T12] usb 1-1: selecting invalid altsetting 1 [ 39.443428][ T12] flexcop_usb: running at HIGH speed. executing program [ 39.645757][ T12] flexcop_usb: error while writing dword from 34 (520). [ 39.665730][ T12] flexcop_usb: error while writing dword from 36 (528). [ 39.715728][ T12] flexcop_usb: error while reading dword from 161 (516). [ 39.735685][ T12] flexcop_usb: error while writing dword from 33 (516). [ 39.785696][ T12] flexcop_usb: error while writing dword from 33 (516). [ 39.805668][ T12] flexcop_usb: error while reading dword from 161 (516). [ 39.825672][ T12] flexcop_usb: error while reading dword from 247 (1820). [ 39.845649][ T12] flexcop_usb: error while writing dword from 119 (1820). [ 39.865675][ T12] flexcop_usb: error while reading dword from 176 (768). [ 39.885682][ T12] flexcop_usb: error while reading dword from 162 (520). [ 39.905694][ T12] flexcop_usb: error while writing dword from 48 (768). [ 39.925663][ T12] flexcop_usb: error while writing dword from 34 (520). [ 39.945684][ T12] flexcop_usb: error while reading dword from 176 (768). [ 39.965678][ T12] flexcop_usb: error while reading dword from 162 (520). [ 39.985671][ T12] flexcop_usb: error while writing dword from 48 (768). [ 40.005656][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.026157][ T12] flexcop_usb: error while reading dword from 177 (772). [ 40.045652][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.065651][ T12] flexcop_usb: error while writing dword from 49 (772). [ 40.085681][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.105676][ T12] flexcop_usb: error while reading dword from 177 (772). [ 40.125663][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.145653][ T12] flexcop_usb: error while writing dword from 49 (772). [ 40.165657][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.185723][ T12] flexcop_usb: error while reading dword from 178 (776). [ 40.205710][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.225703][ T12] flexcop_usb: error while writing dword from 50 (776). [ 40.245659][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.265673][ T12] flexcop_usb: error while reading dword from 178 (776). [ 40.286109][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.305684][ T12] flexcop_usb: error while writing dword from 50 (776). [ 40.325658][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.345666][ T12] flexcop_usb: error while writing dword from 51 (780). [ 40.365668][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.385663][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.405712][ T12] flexcop_usb: error while reading dword from 178 (776). [ 40.425680][ T12] flexcop_usb: error while writing dword from 50 (776). [ 40.445673][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.465644][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.485661][ T12] flexcop_usb: error while reading dword from 162 (520). [ 40.505668][ T12] flexcop_usb: error while writing dword from 34 (520). [ 40.512736][ T12] dvbdev: DVB: registering new adapter (FlexCop Digital TV device) [ 40.546107][ T12] b2c2-flexcop: reading of MAC address failed. [ 40.546107][ T12] [ 40.615661][ T12] CX24123: wrong demod revision: 0 [ 40.915710][ T12] nxt200x: Unknown/Unsupported NXT chip: 00 00 00 00 00 [ 40.935678][ T12] lgdt330x 0-0059: Demod loaded for LGDT3303 chip [ 40.942904][ T12] tuner-simple 0-0061: creating new instance [ 40.949439][ T12] tuner-simple 0-0061: type set to 64 (LG TDVS-H06xF) [ 40.956307][ T12] b2c2-flexcop: found 'LG Electronics LGDT3303 VSB/QAM Frontend' . [ 40.964380][ T12] usb 1-1: DVB: registering adapter 0 frontend 0 (LG Electronics LGDT3303 VSB/QAM Frontend)... [ 40.976068][ T12] b2c2-flexcop: initialization of 'Air2PC/AirStar 2 ATSC 3rd generation (HD5000)' at the 'USB' bus controlled by a 'FlexCopIII' complete [ 40.991874][ T12] kasan: CONFIG_KASAN_INLINE enabled [ 40.997444][ T12] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 41.005512][ T12] general protection fault: 0000 [#1] SMP KASAN [ 41.014868][ T12] CPU: 0 PID: 12 Comm: kworker/0:1 Not tainted 5.4.0-rc6+ #0 [ 41.022215][ T12] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.032256][ T12] Workqueue: usb_hub_wq hub_event [ 41.037262][ T12] RIP: 0010:flexcop_usb_probe.cold+0x1cb/0x7bd [ 41.043398][ T12] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 74 05 e8 51 14 62 fd 48 8b 5b 18 b8 ff ff 37 00 48 c1 e0 2a 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 c1 [ 41.062993][ T12] RSP: 0018:ffff8881da227298 EFLAGS: 00010247 [ 41.069048][ T12] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff840356ab [ 41.077219][ T12] RDX: 0000000000000000 RSI: ffffffff8403576b RDI: 0000000000000004 [ 41.085173][ T12] RBP: ffff8881c619b008 R08: ffff8881da211800 R09: ffffed103b645d58 [ 41.093129][ T12] R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffff8881c619b048 [ 41.101087][ T12] R13: 0000000000000000 R14: ffff8881c619b000 R15: ffff8881cf614000 [ 41.109040][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 41.117943][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.124514][ T12] CR2: 0000000001e4c7d0 CR3: 00000001c7634000 CR4: 00000000001406f0 [ 41.132469][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.140417][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.148364][ T12] Call Trace: [ 41.151692][ T12] ? rpm_callback+0x230/0x230 [ 41.157477][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 41.162745][ T12] ? __pm_runtime_resume+0x111/0x180 [ 41.168003][ T12] usb_probe_interface+0x305/0x7a0 [ 41.173088][ T12] ? usb_probe_device+0x100/0x100 [ 41.178095][ T12] really_probe+0x281/0x6d0 [ 41.182572][ T12] driver_probe_device+0x104/0x210 [ 41.187657][ T12] __device_attach_driver+0x1c2/0x220 [ 41.193020][ T12] ? driver_allows_async_probing+0x160/0x160 [ 41.198975][ T12] bus_for_each_drv+0x162/0x1e0 [ 41.203803][ T12] ? bus_rescan_devices+0x20/0x20 [ 41.208808][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 41.214599][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 41.219932][ T12] __device_attach+0x217/0x360 [ 41.224685][ T12] ? device_bind_driver+0xd0/0xd0 [ 41.229696][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 41.234963][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 41.240222][ T12] bus_probe_device+0x1e4/0x290 [ 41.245049][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 41.250916][ T12] device_add+0xae6/0x16f0 [ 41.255313][ T12] ? uevent_store+0x50/0x50 [ 41.259798][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 41.265580][ T12] usb_set_configuration+0xdf6/0x1670 [ 41.270926][ T12] generic_probe+0x9d/0xd5 [ 41.275316][ T12] usb_probe_device+0x99/0x100 [ 41.280058][ T12] ? usb_suspend+0x620/0x620 [ 41.284624][ T12] really_probe+0x281/0x6d0 [ 41.289144][ T12] driver_probe_device+0x104/0x210 [ 41.294265][ T12] __device_attach_driver+0x1c2/0x220 [ 41.299620][ T12] ? driver_allows_async_probing+0x160/0x160 [ 41.305625][ T12] bus_for_each_drv+0x162/0x1e0 [ 41.310455][ T12] ? bus_rescan_devices+0x20/0x20 [ 41.315521][ T12] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 41.321323][ T12] ? lockdep_hardirqs_on+0x382/0x580 [ 41.326582][ T12] __device_attach+0x217/0x360 [ 41.331321][ T12] ? device_bind_driver+0xd0/0xd0 [ 41.336320][ T12] ? kobject_uevent_env+0x29e/0x1160 [ 41.341580][ T12] ? kobject_uevent_env+0x2a8/0x1160 [ 41.346853][ T12] bus_probe_device+0x1e4/0x290 [ 41.351776][ T12] ? blocking_notifier_call_chain+0x54/0xa0 [ 41.357654][ T12] device_add+0xae6/0x16f0 [ 41.362058][ T12] ? uevent_store+0x50/0x50 [ 41.366540][ T12] usb_new_device.cold+0x6a4/0xe79 [ 41.371638][ T12] hub_event+0x1df8/0x3800 [ 41.376028][ T12] ? hub_port_debounce+0x260/0x260 [ 41.381116][ T12] ? find_held_lock+0x2d/0x110 [ 41.385859][ T12] ? mark_held_locks+0xe0/0xe0 [ 41.390602][ T12] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 41.396123][ T12] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 41.401434][ T12] process_one_work+0x92b/0x1530 [ 41.406414][ T12] ? pwq_dec_nr_in_flight+0x310/0x310 [ 41.412068][ T12] ? do_raw_spin_lock+0x11a/0x280 [ 41.417071][ T12] worker_thread+0x96/0xe20 [ 41.421588][ T12] ? process_one_work+0x1530/0x1530 [ 41.426936][ T12] kthread+0x318/0x420 [ 41.430981][ T12] ? kthread_create_on_node+0xf0/0xf0 [ 41.436327][ T12] ret_from_fork+0x24/0x30 [ 41.440712][ T12] Modules linked in: [ 41.444650][ T12] ---[ end trace b9585237b0697834 ]--- [ 41.450133][ T12] RIP: 0010:flexcop_usb_probe.cold+0x1cb/0x7bd [ 41.456302][ T12] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 74 05 e8 51 14 62 fd 48 8b 5b 18 b8 ff ff 37 00 48 c1 e0 2a 48 8d 7b 04 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 01 38 d0 7c 08 84 d2 0f 85 c1 [ 41.475915][ T12] RSP: 0018:ffff8881da227298 EFLAGS: 00010247 [ 41.481962][ T12] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff840356ab [ 41.489934][ T12] RDX: 0000000000000000 RSI: ffffffff8403576b RDI: 0000000000000004 [ 41.497906][ T12] RBP: ffff8881c619b008 R08: ffff8881da211800 R09: ffffed103b645d58 [ 41.505892][ T12] R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffff8881c619b048 [ 41.513852][ T12] R13: 0000000000000000 R14: ffff8881c619b000 R15: ffff8881cf614000 [ 41.521853][ T12] FS: 0000000000000000(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 41.530802][ T12] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.537400][ T12] CR2: 0000000001e4c7d0 CR3: 00000001c7634000 CR4: 00000000001406f0 [ 41.545361][ T12] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.553344][ T12] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.561335][ T12] Kernel panic - not syncing: Fatal exception [ 41.568017][ T12] Kernel Offset: disabled [ 41.572328][ T12] Rebooting in 86400 seconds..