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 '10.128.0.146' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 25.008648][ T95] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 25.019559][ T1802] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 25.027139][ T94] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 25.034704][ T1801] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 25.042365][ T5] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 25.050022][ T12] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 25.229584][ T95] usb 1-1: config 0 has an invalid interface number: 240 but max is 0 [ 25.237923][ T95] usb 1-1: config 0 has no interface number 0 [ 25.244290][ T95] usb 1-1: config 0 interface 240 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0 [ 25.254256][ T95] usb 1-1: config 0 interface 240 altsetting 1 bulk endpoint 0x6 has invalid maxpacket 0 [ 25.264197][ T95] usb 1-1: config 0 interface 240 has no altsetting 0 [ 25.269879][ T1802] usb 4-1: config 0 has an invalid interface number: 240 but max is 0 [ 25.279221][ T1802] usb 4-1: config 0 has no interface number 0 [ 25.285376][ T94] usb 6-1: config 0 has an invalid interface number: 240 but max is 0 [ 25.293578][ T94] usb 6-1: config 0 has no interface number 0 [ 25.299741][ T12] usb 5-1: config 0 has an invalid interface number: 240 but max is 0 [ 25.307999][ T12] usb 5-1: config 0 has no interface number 0 [ 25.314545][ T1801] usb 2-1: config 0 has an invalid interface number: 240 but max is 0 [ 25.322742][ T1801] usb 2-1: config 0 has no interface number 0 [ 25.328863][ T5] usb 3-1: config 0 has an invalid interface number: 240 but max is 0 [ 25.337060][ T5] usb 3-1: config 0 has no interface number 0 [ 25.343208][ T1801] usb 2-1: config 0 interface 240 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0 [ 25.353143][ T1801] usb 2-1: config 0 interface 240 altsetting 1 bulk endpoint 0x6 has invalid maxpacket 0 [ 25.363074][ T1801] usb 2-1: config 0 interface 240 has no altsetting 0 [ 25.369923][ T94] usb 6-1: config 0 interface 240 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0 [ 25.379779][ T94] usb 6-1: config 0 interface 240 altsetting 1 bulk endpoint 0x6 has invalid maxpacket 0 [ 25.389641][ T94] usb 6-1: config 0 interface 240 has no altsetting 0 [ 25.396579][ T5] usb 3-1: config 0 interface 240 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0 [ 25.406485][ T5] usb 3-1: config 0 interface 240 altsetting 1 bulk endpoint 0x6 has invalid maxpacket 0 [ 25.416443][ T5] usb 3-1: config 0 interface 240 has no altsetting 0 [ 25.423331][ T12] usb 5-1: config 0 interface 240 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0 [ 25.433188][ T12] usb 5-1: config 0 interface 240 altsetting 1 bulk endpoint 0x6 has invalid maxpacket 0 [ 25.439620][ T95] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=f1.8a [ 25.443041][ T12] usb 5-1: config 0 interface 240 has no altsetting 0 [ 25.452297][ T95] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 25.459108][ T1802] usb 4-1: config 0 interface 240 altsetting 1 endpoint 0x6 has invalid wMaxPacketSize 0 [ 25.467089][ T95] usb 1-1: Product: syz [ 25.477619][ T1802] usb 4-1: config 0 interface 240 altsetting 1 bulk endpoint 0x6 has invalid maxpacket 0 [ 25.481799][ T95] usb 1-1: Manufacturer: syz [ 25.491653][ T1802] usb 4-1: config 0 interface 240 has no altsetting 0 [ 25.496243][ T95] usb 1-1: SerialNumber: syz [ 25.509339][ T95] usb 1-1: config 0 descriptor?? [ 25.551516][ T95] pvrusb2: Hardware description: Terratec Grabster AV400 [ 25.558693][ T95] pvrusb2: ********** [ 25.562754][ T95] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 25.573393][ T95] pvrusb2: Important functionality might not be entirely working. [ 25.581300][ T95] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 25.592754][ T95] pvrusb2: ********** [ 25.597103][ T95] usb 1-1: selecting invalid altsetting 0 [ 25.603308][ T103] pvrusb2: Invalid write control endpoint [ 25.623175][ T103] pvrusb2: Invalid write control endpoint [ 25.629040][ T103] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 25.639316][ T103] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 25.647179][ T103] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 25.657265][ T103] pvrusb2: Device being rendered inoperable [ 25.663794][ T94] usb 6-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=f1.8a [ 25.672953][ T94] usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 25.681108][ T94] usb 6-1: Product: syz [ 25.685318][ T94] usb 6-1: Manufacturer: syz [ 25.687452][ T103] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 25.690148][ T94] usb 6-1: SerialNumber: syz [ 25.690243][ T1801] usb 2-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=f1.8a [ 25.697901][ T103] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 25.701976][ T1801] usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 25.701990][ T1801] usb 2-1: Product: syz [ 25.702002][ T1801] usb 2-1: Manufacturer: syz [ 25.702015][ T1801] usb 2-1: SerialNumber: syz [ 25.716191][ T103] pvrusb2: Attached sub-driver cx25840 [ 25.718758][ T5] usb 3-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=f1.8a [ 25.726999][ T103] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 25.731179][ T5] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 25.735749][ T103] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 25.754177][ T95] usb 1-1: USB disconnect, device number 2 [ 25.755027][ T5] usb 3-1: Product: syz [ 25.755042][ T5] usb 3-1: Manufacturer: syz [ 25.796993][ T5] usb 3-1: SerialNumber: syz executing program [ 25.801751][ T1802] usb 4-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=f1.8a [ 25.810948][ T1802] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 25.818930][ T1802] usb 4-1: Product: syz [ 25.823139][ T1802] usb 4-1: Manufacturer: syz [ 25.827736][ T1802] usb 4-1: SerialNumber: syz [ 25.833007][ T12] usb 5-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=f1.8a [ 25.842088][ T12] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 25.850118][ T12] usb 5-1: Product: syz [ 25.854455][ T12] usb 5-1: Manufacturer: syz [ 25.859165][ T12] usb 5-1: SerialNumber: syz [ 25.865680][ T94] usb 6-1: config 0 descriptor?? [ 25.871430][ T1801] usb 2-1: config 0 descriptor?? [ 25.878083][ T1802] usb 4-1: config 0 descriptor?? [ 25.884020][ T12] usb 5-1: config 0 descriptor?? [ 25.890427][ T103] ------------[ cut here ]------------ [ 25.895904][ T103] sysfs group 'power' not found for kobject '0-0044' [ 25.902877][ T103] WARNING: CPU: 0 PID: 103 at fs/sysfs/group.c:278 sysfs_remove_group+0x155/0x1b0 [ 25.912117][ T103] Kernel panic - not syncing: panic_on_warn set ... [ 25.918786][ T103] CPU: 0 PID: 103 Comm: pvrusb2-context Not tainted 5.6.0-rc3-syzkaller #0 [ 25.927647][ T103] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 25.937850][ T103] Call Trace: [ 25.941184][ T103] dump_stack+0xef/0x16e [ 25.945434][ T103] ? sysfs_remove_group+0x90/0x1b0 [ 25.950548][ T103] panic+0x2aa/0x6e1 [ 25.954439][ T103] ? add_taint.cold+0x16/0x16 [ 25.959159][ T103] ? __probe_kernel_read+0x188/0x1d0 [ 25.964442][ T103] ? __warn.cold+0x14/0x30 [ 25.969548][ T103] ? __warn+0xd5/0x1c8 [ 25.973649][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 25.978888][ T103] __warn.cold+0x2f/0x30 [ 25.983129][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 25.988351][ T103] report_bug+0x27b/0x2f0 [ 25.992680][ T103] do_error_trap+0x12b/0x1e0 [ 25.997380][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 26.002577][ T103] do_invalid_op+0x32/0x40 [ 26.007009][ T103] ? sysfs_remove_group+0x155/0x1b0 [ 26.012269][ T103] invalid_op+0x23/0x30 [ 26.016434][ T103] RIP: 0010:sysfs_remove_group+0x155/0x1b0 [ 26.022342][ 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 20 67 f1 85 e8 d3 49 84 ff <0f> 0b eb 95 e8 f2 60 d8 ff e9 d2 fe ff ff 48 89 df e8 e5 60 d8 ff [ 26.042058][ T103] RSP: 0018:ffff8881d49e7b80 EFLAGS: 00010286 [ 26.048192][ T103] RAX: 0000000000000000 RBX: ffffffff8615f620 RCX: 0000000000000000 [ 26.056167][ T103] RDX: 0000000000000000 RSI: ffffffff812977dd RDI: ffffed103a93cf62 [ 26.064248][ T103] RBP: 0000000000000000 R08: ffff8881d5cbb100 R09: ffffed103b646248 [ 26.072234][ T103] R10: ffffed103b646247 R11: ffff8881db23123f R12: ffff8881cdd20020 [ 26.080422][ T103] R13: ffffffff8615fbc0 R14: 1ffff1103a93cf97 R15: dffffc0000000000 [ 26.088409][ T103] ? vprintk_func+0x7d/0x113 [ 26.093026][ T103] ? __process_removed_driver+0x70/0x70 [ 26.098583][ T103] dpm_sysfs_remove+0x97/0xb0 [ 26.103288][ T103] device_del+0x18b/0xd30 [ 26.107629][ T103] ? device_create_with_groups+0x120/0x120 [ 26.113439][ T103] ? _raw_spin_unlock_irqrestore+0x39/0x40 [ 26.119269][ T103] ? __device_link_free_srcu+0x110/0x110 [ 26.125074][ T103] ? lockdep_hardirqs_on+0x382/0x580 [ 26.130454][ T103] ? __process_removed_driver+0x70/0x70 [ 26.136068][ T103] device_unregister+0x22/0xc0 [ 26.140855][ T103] ? __process_removed_driver+0x70/0x70 [ 26.146414][ T103] __unregister_client+0x8b/0xa0 [ 26.151352][ T103] device_for_each_child+0xf9/0x170 [ 26.156557][ T103] ? device_remove_class_symlinks+0x1c0/0x1c0 [ 26.162675][ T103] ? __radix_tree_lookup+0x1ed/0x260 [ 26.167970][ T103] i2c_del_adapter+0x373/0x660 [ 26.172735][ T103] ? del_timer_sync+0x115/0x130 [ 26.177579][ T103] pvr2_i2c_core_done+0x69/0xb6 [ 26.182434][ T103] pvr2_hdw_destroy+0x179/0x370 [ 26.187417][ T103] pvr2_context_destroy+0x84/0x230 [ 26.192569][ T103] pvr2_context_thread_func+0x657/0x860 [ 26.198107][ T103] ? lock_acquire+0x130/0x340 [ 26.202862][ T103] ? pvr2_context_destroy+0x230/0x230 [ 26.208238][ T103] ? finish_wait+0x260/0x260 [ 26.212984][ T103] ? lockdep_hardirqs_on+0x382/0x580 [ 26.218329][ T103] ? __kthread_parkme+0x10a/0x1c0 [ 26.223347][ T103] ? pvr2_context_destroy+0x230/0x230 [ 26.228827][ T103] kthread+0x318/0x420 [ 26.232897][ T103] ? kthread_create_on_node+0xf0/0xf0 [ 26.238299][ T103] ret_from_fork+0x24/0x30 [ 26.243491][ T103] Kernel Offset: disabled [ 26.247872][ T103] Rebooting in 86400 seconds..