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 '10.128.0.127' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 28.428970][ T101] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 28.668523][ T101] usb 1-1: Using ep0 maxpacket: 8 [ 28.788668][ T101] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 28.798854][ T101] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 28.809319][ T101] usb 1-1: config 0 descriptor?? [ 28.851484][ T101] pvrusb2: Hardware description: Terratec Grabster AV400 [ 28.858827][ T101] pvrusb2: ********** [ 28.863009][ T101] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 28.874122][ T101] pvrusb2: Important functionality might not be entirely working. [ 28.882428][ T101] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 28.894767][ T101] pvrusb2: ********** executing program [ 29.069175][ T103] pvrusb2: Invalid write control endpoint [ 29.070596][ T101] usb 1-1: USB disconnect, device number 2 [ 29.085457][ T103] pvrusb2: Invalid write control endpoint [ 29.091800][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 29.101456][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 29.109253][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 29.120158][ T103] pvrusb2: Device being rendered inoperable [ 29.127413][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 29.134685][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 29.144185][ T103] pvrusb2: Attached sub-driver cx25840 [ 29.149981][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 29.160855][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 29.528627][ T101] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 29.768557][ T101] usb 1-1: Using ep0 maxpacket: 8 [ 29.888728][ T101] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 29.898990][ T101] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 29.910452][ T101] usb 1-1: config 0 descriptor?? [ 29.960510][ T101] pvrusb2: Hardware description: Terratec Grabster AV400 [ 29.968236][ T101] pvrusb2: ********** [ 29.972622][ T101] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 29.983910][ T101] pvrusb2: Important functionality might not be entirely working. [ 29.992085][ T101] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 30.004528][ T101] pvrusb2: ********** executing program [ 30.168623][ T103] pvrusb2: Invalid write control endpoint [ 30.169620][ T101] usb 1-1: USB disconnect, device number 3 [ 30.183063][ T103] pvrusb2: Invalid write control endpoint [ 30.189897][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 30.202032][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 30.209937][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 30.220219][ T103] pvrusb2: Device being rendered inoperable [ 30.226492][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 30.234398][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 30.242826][ T103] pvrusb2: Attached sub-driver cx25840 [ 30.248993][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 30.259673][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 30.618535][ T101] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 30.858505][ T101] usb 1-1: Using ep0 maxpacket: 8 [ 30.978722][ T101] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 30.988704][ T101] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 30.998307][ T101] usb 1-1: config 0 descriptor?? [ 31.050436][ T101] pvrusb2: Hardware description: Terratec Grabster AV400 [ 31.057718][ T101] pvrusb2: ********** [ 31.061770][ T101] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 31.072545][ T101] pvrusb2: Important functionality might not be entirely working. [ 31.081428][ T101] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 31.093258][ T101] pvrusb2: ********** executing program [ 31.258713][ T103] pvrusb2: Invalid write control endpoint [ 31.259611][ T101] usb 1-1: USB disconnect, device number 4 [ 31.276492][ T103] pvrusb2: Invalid write control endpoint [ 31.282867][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 31.294644][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 31.305615][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 31.318427][ T103] pvrusb2: Device being rendered inoperable [ 31.325510][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 31.333994][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 31.343772][ T103] pvrusb2: Attached sub-driver cx25840 [ 31.350005][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 31.360619][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 31.718954][ T101] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 31.958493][ T101] usb 1-1: Using ep0 maxpacket: 8 [ 32.078587][ T101] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=77.39 [ 32.088482][ T101] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.097868][ T101] usb 1-1: config 0 descriptor?? [ 32.140402][ T101] pvrusb2: Hardware description: Terratec Grabster AV400 [ 32.150712][ T101] pvrusb2: ********** [ 32.156442][ T101] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 32.167973][ T101] pvrusb2: Important functionality might not be entirely working. [ 32.176482][ T101] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 32.189299][ T101] pvrusb2: ********** executing program [ 32.358624][ T103] pvrusb2: Invalid write control endpoint [ 32.359429][ T101] usb 1-1: USB disconnect, device number 5 [ 32.376637][ T103] pvrusb2: Invalid write control endpoint [ 32.382667][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 32.393847][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 32.402501][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 32.414598][ T103] pvrusb2: Device being rendered inoperable [ 32.421213][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 32.428964][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 32.437401][ T103] pvrusb2: Attached sub-driver cx25840 [ 32.443302][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 32.455366][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 32.467914][ T103] ------------[ cut here ]------------ [ 32.473702][ T103] sysfs group 'power' not found for kobject 'i2c-0' [ 32.480710][ T103] WARNING: CPU: 0 PID: 103 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 32.492094][ T103] Kernel panic - not syncing: panic_on_warn set ... [ 32.499507][ T103] CPU: 0 PID: 103 Comm: pvrusb2-context Not tainted 5.4.0-rc6+ #0 [ 32.508579][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.520099][ T103] Call Trace: [ 32.524224][ T103] dump_stack+0xca/0x13e [ 32.529718][ T103] ? sysfs_remove_group+0xe0/0x1b0 [ 32.536244][ T103] panic+0x2aa/0x6e1 [ 32.540507][ T103] ? add_taint.cold+0x16/0x16 [ 32.545528][ T103] ? __probe_kernel_read+0x188/0x1d0 [ 32.551193][ T103] ? __warn.cold+0x14/0x33 [ 32.555741][ T103] ? __warn+0xd5/0x1d0 [ 32.560122][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 32.565924][ T103] __warn.cold+0x2f/0x33 [ 32.570400][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 32.575954][ T103] report_bug+0x27b/0x2f0 [ 32.580604][ T103] do_error_trap+0x12b/0x1e0 [ 32.585474][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 32.590990][ T103] do_invalid_op+0x32/0x40 [ 32.595513][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 32.601918][ T103] invalid_op+0x23/0x30 [ 32.606075][ T103] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 32.612153][ T103] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 41 48 8b 33 48 c7 c7 e0 a0 d0 85 e8 20 f0 89 ff <0f> 0b eb 95 e8 a2 9a db ff e9 d2 fe ff ff 48 89 df e8 95 9a db ff [ 32.632855][ T103] RSP: 0018:ffff8881d4defc40 EFLAGS: 00010282 [ 32.639027][ T103] RAX: 0000000000000000 RBX: ffffffff85f2c9e0 RCX: 0000000000000000 [ 32.647153][ T103] RDX: 0000000000000000 RSI: ffffffff8128c9cd RDI: ffffed103a9bdf7a [ 32.655232][ T103] RBP: 0000000000000000 R08: ffff8881d6fbc800 R09: ffffed103b645d58 [ 32.663618][ T103] R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffff8881cfa14338 [ 32.671588][ T103] R13: ffffffff85f2cf80 R14: ffff8881cfa14900 R15: ffff8881d6fbc800 [ 32.679751][ T103] ? vprintk_func+0x7d/0x113 [ 32.684399][ T103] dpm_sysfs_remove+0x97/0xb0 [ 32.689645][ T103] device_del+0x12a/0xb20 [ 32.694253][ T103] ? __pm_runtime_disable+0x148/0x3d0 [ 32.699797][ T103] ? __device_link_del+0x2f0/0x2f0 [ 32.704921][ T103] ? pm_runtime_barrier+0x260/0x260 [ 32.710245][ T103] ? lockdep_init_map+0x1b0/0x5e0 [ 32.715446][ T103] ? lockdep_init_map+0x1b0/0x5e0 [ 32.720686][ T103] device_unregister+0x11/0x30 [ 32.725448][ T103] i2c_del_adapter+0x42b/0x590 [ 32.730391][ T103] ? del_timer_sync+0x11a/0x140 [ 32.735496][ T103] pvr2_i2c_core_done+0x69/0xb6 [ 32.740451][ T103] pvr2_hdw_destroy+0x179/0x370 [ 32.745299][ T103] pvr2_context_destroy+0x84/0x230 [ 32.750622][ T103] pvr2_context_thread_func+0x657/0x860 [ 32.756641][ T103] ? lock_acquire+0x127/0x320 [ 32.761654][ T103] ? pvr2_context_destroy+0x230/0x230 [ 32.767396][ T103] ? finish_wait+0x260/0x260 [ 32.772139][ T103] ? lockdep_hardirqs_on+0x382/0x580 [ 32.777630][ T103] ? __kthread_parkme+0x10a/0x1c0 [ 32.782915][ T103] ? pvr2_context_destroy+0x230/0x230 [ 32.788483][ T103] kthread+0x318/0x420 [ 32.792818][ T103] ? kthread_create_on_node+0xf0/0xf0 [ 32.798180][ T103] ret_from_fork+0x24/0x30 [ 32.803861][ T103] Kernel Offset: disabled [ 32.808263][ T103] Rebooting in 86400 seconds..