[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 14.395933][ 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 '10.128.15.193' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 45.292159][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 45.532139][ T83] usb 1-1: Using ep0 maxpacket: 8 [ 45.652295][ T83] usb 1-1: New USB device found, idVendor=0af7, idProduct=0101, bcdDevice=5c.31 [ 45.661414][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 45.670708][ T83] usb 1-1: config 0 descriptor?? [ 45.714241][ T83] usb 1-1: selecting invalid altsetting 1 [ 45.720061][ T83] flexcop_usb: running at HIGH speed. executing program [ 45.922194][ T83] flexcop_usb: error while writing dword from 34 (520). [ 45.942193][ T83] flexcop_usb: error while writing dword from 36 (528). [ 45.992223][ T83] flexcop_usb: error while reading dword from 161 (516). [ 46.012178][ T83] flexcop_usb: error while writing dword from 33 (516). [ 46.062207][ T83] flexcop_usb: error while writing dword from 33 (516). [ 46.082193][ T83] flexcop_usb: error while reading dword from 161 (516). [ 46.102166][ T83] flexcop_usb: error while reading dword from 247 (1820). [ 46.122141][ T83] flexcop_usb: error while writing dword from 119 (1820). [ 46.142149][ T83] flexcop_usb: error while reading dword from 176 (768). [ 46.162165][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.182153][ T83] flexcop_usb: error while writing dword from 48 (768). [ 46.202168][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.222144][ T83] flexcop_usb: error while reading dword from 176 (768). [ 46.242150][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.262173][ T83] flexcop_usb: error while writing dword from 48 (768). [ 46.282173][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.302162][ T83] flexcop_usb: error while reading dword from 177 (772). [ 46.322154][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.342167][ T83] flexcop_usb: error while writing dword from 49 (772). [ 46.362189][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.382132][ T83] flexcop_usb: error while reading dword from 177 (772). [ 46.402160][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.422174][ T83] flexcop_usb: error while writing dword from 49 (772). [ 46.442175][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.462194][ T83] flexcop_usb: error while reading dword from 178 (776). [ 46.482161][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.502160][ T83] flexcop_usb: error while writing dword from 50 (776). [ 46.522149][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.542218][ T83] flexcop_usb: error while reading dword from 178 (776). [ 46.562171][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.582177][ T83] flexcop_usb: error while writing dword from 50 (776). [ 46.602179][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.622196][ T83] flexcop_usb: error while writing dword from 51 (780). [ 46.642198][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.662179][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.692162][ T83] flexcop_usb: error while reading dword from 178 (776). [ 46.712169][ T83] flexcop_usb: error while writing dword from 50 (776). [ 46.732191][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.752201][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.772152][ T83] flexcop_usb: error while reading dword from 162 (520). [ 46.792166][ T83] flexcop_usb: error while writing dword from 34 (520). [ 46.799234][ T83] dvbdev: DVB: registering new adapter (FlexCop Digital TV device) [ 46.842204][ T83] b2c2-flexcop: reading of MAC address failed. [ 46.842204][ T83] [ 46.902188][ T83] CX24123: wrong demod revision: 0 [ 47.202199][ T83] nxt200x: Unknown/Unsupported NXT chip: 00 00 00 00 00 [ 47.222191][ T83] lgdt330x 0-0059: Demod loaded for LGDT3303 chip [ 47.229267][ T83] tuner-simple 0-0061: creating new instance [ 47.235500][ T83] tuner-simple 0-0061: type set to 64 (LG TDVS-H06xF) [ 47.242278][ T83] b2c2-flexcop: found 'LG Electronics LGDT3303 VSB/QAM Frontend' . [ 47.250294][ T83] usb 1-1: DVB: registering adapter 0 frontend 0 (LG Electronics LGDT3303 VSB/QAM Frontend)... [ 47.261878][ T83] b2c2-flexcop: initialization of 'Air2PC/AirStar 2 ATSC 3rd generation (HD5000)' at the 'USB' bus controlled by a 'FlexCopIII' complete [ 47.275940][ T83] kasan: CONFIG_KASAN_INLINE enabled [ 47.281256][ T83] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 47.289342][ T83] general protection fault: 0000 [#1] SMP KASAN [ 47.295568][ T83] CPU: 1 PID: 83 Comm: kworker/1:2 Not tainted 5.4.0-rc5+ #0 [ 47.302905][ T83] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.312938][ T83] Workqueue: usb_hub_wq hub_event [ 47.317952][ T83] RIP: 0010:flexcop_usb_probe.cold+0x1cb/0x7bd [ 47.324077][ T83] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 74 05 e8 81 ec 61 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 [ 47.343652][ T83] RSP: 0018:ffff8881d89b7298 EFLAGS: 00010247 [ 47.349690][ T83] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84037d3b [ 47.357635][ T83] RDX: 0000000000000000 RSI: ffffffff84037dfb RDI: 0000000000000004 [ 47.365582][ T83] RBP: ffff8881cffc3008 R08: ffff8881d889b000 R09: ffffed103b665d58 [ 47.373530][ T83] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881cffc3048 [ 47.381472][ T83] R13: 0000000000000000 R14: ffff8881cffc3000 R15: ffff8881cf858000 [ 47.389418][ T83] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 47.398318][ T83] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.404874][ T83] CR2: 0000000001ad17d0 CR3: 00000001d3669000 CR4: 00000000001406e0 [ 47.412820][ T83] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.420774][ T83] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.428719][ T83] Call Trace: [ 47.431987][ T83] ? rpm_callback+0x230/0x230 [ 47.436649][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 47.441913][ T83] ? __pm_runtime_resume+0x111/0x180 [ 47.447184][ T83] usb_probe_interface+0x305/0x7a0 [ 47.452286][ T83] ? usb_probe_device+0x100/0x100 [ 47.457294][ T83] really_probe+0x281/0x6d0 [ 47.461780][ T83] driver_probe_device+0x104/0x210 [ 47.466867][ T83] __device_attach_driver+0x1c2/0x220 [ 47.472215][ T83] ? driver_allows_async_probing+0x160/0x160 [ 47.478167][ T83] bus_for_each_drv+0x162/0x1e0 [ 47.483002][ T83] ? bus_rescan_devices+0x20/0x20 [ 47.488007][ T83] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 47.493784][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 47.499041][ T83] __device_attach+0x217/0x360 [ 47.503778][ T83] ? device_bind_driver+0xd0/0xd0 [ 47.508774][ T83] ? kobject_uevent_env+0x29e/0x1160 [ 47.514124][ T83] ? kobject_uevent_env+0x2a8/0x1160 [ 47.519384][ T83] bus_probe_device+0x1e4/0x290 [ 47.524207][ T83] ? blocking_notifier_call_chain+0x54/0xa0 [ 47.530071][ T83] device_add+0xae6/0x16f0 [ 47.534459][ T83] ? uevent_store+0x50/0x50 [ 47.538938][ T83] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 47.544716][ T83] usb_set_configuration+0xdf6/0x1670 [ 47.550061][ T83] generic_probe+0x9d/0xd5 [ 47.554450][ T83] usb_probe_device+0x99/0x100 [ 47.559188][ T83] ? usb_suspend+0x620/0x620 [ 47.563750][ T83] really_probe+0x281/0x6d0 [ 47.568225][ T83] driver_probe_device+0x104/0x210 [ 47.573308][ T83] __device_attach_driver+0x1c2/0x220 [ 47.578653][ T83] ? driver_allows_async_probing+0x160/0x160 [ 47.584603][ T83] bus_for_each_drv+0x162/0x1e0 [ 47.589427][ T83] ? bus_rescan_devices+0x20/0x20 [ 47.594424][ T83] ? _raw_spin_unlock_irqrestore+0x3e/0x50 [ 47.600203][ T83] ? lockdep_hardirqs_on+0x382/0x580 [ 47.605475][ T83] __device_attach+0x217/0x360 [ 47.610212][ T83] ? device_bind_driver+0xd0/0xd0 [ 47.615208][ T83] ? kobject_uevent_env+0x29e/0x1160 [ 47.620467][ T83] ? kobject_uevent_env+0x2a8/0x1160 [ 47.625724][ T83] bus_probe_device+0x1e4/0x290 [ 47.630549][ T83] ? blocking_notifier_call_chain+0x54/0xa0 [ 47.636410][ T83] device_add+0xae6/0x16f0 [ 47.640798][ T83] ? uevent_store+0x50/0x50 [ 47.645272][ T83] usb_new_device.cold+0x6a4/0xe79 [ 47.650365][ T83] hub_event+0x1df8/0x3800 [ 47.654776][ T83] ? hub_port_debounce+0x260/0x260 [ 47.659863][ T83] ? find_held_lock+0x2d/0x110 [ 47.664605][ T83] ? mark_held_locks+0xe0/0xe0 [ 47.669358][ T83] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 47.674887][ T83] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 47.680150][ T83] process_one_work+0x92b/0x1530 [ 47.685065][ T83] ? pwq_dec_nr_in_flight+0x310/0x310 [ 47.690412][ T83] ? do_raw_spin_lock+0x11a/0x280 [ 47.695425][ T83] worker_thread+0x96/0xe20 [ 47.699903][ T83] ? process_one_work+0x1530/0x1530 [ 47.705073][ T83] kthread+0x318/0x420 [ 47.709137][ T83] ? kthread_create_on_node+0xf0/0xf0 [ 47.714481][ T83] ret_from_fork+0x24/0x30 [ 47.718863][ T83] Modules linked in: [ 47.722805][ T83] ---[ end trace 7572e587a77d44dd ]--- [ 47.728260][ T83] RIP: 0010:flexcop_usb_probe.cold+0x1cb/0x7bd [ 47.734424][ T83] Code: 48 89 fa 48 c1 ea 03 80 3c 02 00 74 05 e8 81 ec 61 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 [ 47.754037][ T83] RSP: 0018:ffff8881d89b7298 EFLAGS: 00010247 [ 47.760082][ T83] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff84037d3b [ 47.768103][ T83] RDX: 0000000000000000 RSI: ffffffff84037dfb RDI: 0000000000000004 [ 47.776082][ T83] RBP: ffff8881cffc3008 R08: ffff8881d889b000 R09: ffffed103b665d58 [ 47.784059][ T83] R10: ffffed103b665d57 R11: ffff8881db32eabf R12: ffff8881cffc3048 [ 47.792033][ T83] R13: 0000000000000000 R14: ffff8881cffc3000 R15: ffff8881cf858000 [ 47.800038][ T83] FS: 0000000000000000(0000) GS:ffff8881db300000(0000) knlGS:0000000000000000 [ 47.808970][ T83] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.815557][ T83] CR2: 0000000001ad17d0 CR3: 00000001d3669000 CR4: 00000000001406e0 [ 47.823547][ T83] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 47.831519][ T83] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 47.839502][ T83] Kernel panic - not syncing: Fatal exception [ 47.846148][ T83] Kernel Offset: disabled [ 47.850465][ T83] Rebooting in 86400 seconds..