[ OK ] Started Getty on tty3. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.42' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 60.662094][ T3002] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 60.901959][ T3002] usb 1-1: Using ep0 maxpacket: 16 [ 61.022088][ T3002] usb 1-1: config 0 has an invalid interface number: 121 but max is 0 [ 61.030469][ T3002] usb 1-1: config 0 has no interface number 0 [ 61.037975][ T3002] usb 1-1: config 0 interface 121 altsetting 0 has a duplicate endpoint with address 0xF, skipping [ 61.202092][ T3002] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=8e.9f [ 61.211413][ T3002] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 61.219617][ T3002] usb 1-1: Product: syz [ 61.223873][ T3002] usb 1-1: Manufacturer: syz [ 61.228460][ T3002] usb 1-1: SerialNumber: syz [ 61.238536][ T3002] usb 1-1: config 0 descriptor?? [ 61.298651][ T3002] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 61.502667][ T4042] pvrusb2: Invalid write control endpoint [ 61.506349][ T3002] usb 1-1: USB disconnect, device number 2 [ 61.648412][ T4042] pvrusb2: Invalid write control endpoint [ 61.654622][ T4042] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 61.665976][ T4042] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 61.674430][ T4042] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 61.684847][ T4042] pvrusb2: Device being rendered inoperable [ 61.691404][ T4042] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 61.699208][ T4042] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 61.709218][ T4042] pvrusb2: Attached sub-driver cx25840 [ 61.720844][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 61.730101][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 61.738212][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 61.746319][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 61.754608][ T4042] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 61.789526][ T4042] TUNER: Unable to find symbol tda829x_probe() [ 61.803062][ T4042] DVB: Unable to find symbol tda9887_attach() [ 61.809131][ T4042] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 61.816514][ T4042] pvrusb2: Attached sub-driver tuner [ 61.821936][ T4042] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 61.834863][ T4042] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 62.211821][ T3002] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 62.451828][ T3002] usb 1-1: Using ep0 maxpacket: 16 [ 62.571917][ T3002] usb 1-1: config 0 has an invalid interface number: 121 but max is 0 [ 62.580184][ T3002] usb 1-1: config 0 has no interface number 0 [ 62.587593][ T3002] usb 1-1: config 0 interface 121 altsetting 0 has a duplicate endpoint with address 0xF, skipping [ 62.762017][ T3002] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=8e.9f [ 62.771072][ T3002] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 62.780063][ T3002] usb 1-1: Product: syz [ 62.784868][ T3002] usb 1-1: Manufacturer: syz [ 62.789609][ T3002] usb 1-1: SerialNumber: syz [ 62.796568][ T3002] usb 1-1: config 0 descriptor?? [ 62.846473][ T3002] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 63.054760][ T4042] pvrusb2: Invalid write control endpoint [ 63.062771][ T3002] usb 1-1: USB disconnect, device number 3 [ 63.095685][ T4042] pvrusb2: Invalid write control endpoint [ 63.101531][ T4042] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 63.112450][ T4042] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 63.120113][ T4042] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 63.130781][ T4042] pvrusb2: Device being rendered inoperable [ 63.137259][ T4042] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 63.144646][ T4042] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 63.153608][ T4042] pvrusb2: Attached sub-driver cx25840 [ 63.166354][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 63.174526][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 63.182755][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 63.190802][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 63.199004][ T4042] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 63.231509][ T4042] TUNER: Unable to find symbol tda829x_probe() [ 63.245867][ T4042] DVB: Unable to find symbol tda9887_attach() [ 63.252313][ T4042] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 63.259353][ T4042] pvrusb2: Attached sub-driver tuner [ 63.265985][ T4042] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 63.279804][ T4042] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 63.651680][ T3002] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 63.891735][ T3002] usb 1-1: Using ep0 maxpacket: 16 [ 64.011862][ T3002] usb 1-1: config 0 has an invalid interface number: 121 but max is 0 [ 64.020050][ T3002] usb 1-1: config 0 has no interface number 0 [ 64.027522][ T3002] usb 1-1: config 0 interface 121 altsetting 0 has a duplicate endpoint with address 0xF, skipping [ 64.201829][ T3002] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=8e.9f [ 64.211072][ T3002] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 64.220015][ T3002] usb 1-1: Product: syz [ 64.224915][ T3002] usb 1-1: Manufacturer: syz [ 64.229509][ T3002] usb 1-1: SerialNumber: syz [ 64.236330][ T3002] usb 1-1: config 0 descriptor?? [ 64.276915][ T3002] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 64.491752][ T4042] pvrusb2: Invalid write control endpoint [ 64.495220][ T3002] usb 1-1: USB disconnect, device number 4 [ 64.520588][ T4042] pvrusb2: Invalid write control endpoint [ 64.526509][ T4042] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 64.536362][ T4042] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 64.544203][ T4042] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 64.554329][ T4042] pvrusb2: Device being rendered inoperable [ 64.560321][ T4042] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 64.567701][ T4042] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 64.576153][ T4042] pvrusb2: Attached sub-driver cx25840 [ 64.589519][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 64.597813][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 64.606267][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 64.614354][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 64.622410][ T4042] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 64.657084][ T4042] TUNER: Unable to find symbol tda829x_probe() [ 64.670518][ T4042] DVB: Unable to find symbol tda9887_attach() [ 64.677507][ T4042] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 64.685368][ T4042] pvrusb2: Attached sub-driver tuner [ 64.690657][ T4042] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 64.704347][ T4042] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 65.081563][ T3002] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 65.321559][ T3002] usb 1-1: Using ep0 maxpacket: 16 [ 65.441685][ T3002] usb 1-1: config 0 has an invalid interface number: 121 but max is 0 [ 65.449944][ T3002] usb 1-1: config 0 has no interface number 0 [ 65.456178][ T3002] usb 1-1: config 0 interface 121 altsetting 0 has a duplicate endpoint with address 0xF, skipping [ 65.621645][ T3002] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=8e.9f [ 65.630830][ T3002] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 65.639797][ T3002] usb 1-1: Product: syz [ 65.644567][ T3002] usb 1-1: Manufacturer: syz [ 65.649155][ T3002] usb 1-1: SerialNumber: syz [ 65.658832][ T3002] usb 1-1: config 0 descriptor?? [ 65.706432][ T3002] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 65.911647][ T4042] pvrusb2: Invalid write control endpoint [ 65.914481][ T3002] usb 1-1: USB disconnect, device number 5 [ 65.940427][ T4042] pvrusb2: Invalid write control endpoint [ 65.949228][ T4042] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 65.961998][ T4042] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 65.969661][ T4042] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 65.980783][ T4042] pvrusb2: Device being rendered inoperable [ 65.987519][ T4042] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 65.995320][ T4042] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 66.004937][ T4042] pvrusb2: Attached sub-driver cx25840 [ 66.017325][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 66.025763][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 66.034245][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 66.042385][ T4042] pvrusb2: Attempted to execute control transfer when device not ok [ 66.050539][ T4042] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 66.082645][ T4042] TUNER: Unable to find symbol tda829x_probe() [ 66.097554][ T4042] DVB: Unable to find symbol tda9887_attach() [ 66.103756][ T4042] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 66.110748][ T4042] pvrusb2: Attached sub-driver tuner [ 66.116183][ T4042] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 66.129325][ T4042] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 66.158511][ T4042] ------------[ cut here ]------------ [ 66.167493][ T4042] sysfs group 'power' not found for kobject '0-0043' [ 66.177905][ T4042] WARNING: CPU: 0 PID: 4042 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 [ 66.187776][ T4042] Modules linked in: [ 66.192269][ T4042] CPU: 0 PID: 4042 Comm: pvrusb2-context Not tainted 5.10.0-rc7-syzkaller #0 [ 66.201048][ T4042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.212208][ T4042] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 66.218014][ T4042] 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 37 48 8b 33 48 c7 c7 e0 7b 5b 89 e8 e6 21 c5 06 <0f> 0b eb 98 e8 91 30 ca ff e9 01 ff ff ff 48 89 df e8 84 30 ca ff [ 66.238848][ T4042] RSP: 0018:ffffc900038cfb80 EFLAGS: 00010286 [ 66.245499][ T4042] RAX: 0000000000000000 RBX: ffffffff89b57c00 RCX: 0000000000000000 [ 66.254097][ T4042] RDX: ffff88801d4a3480 RSI: ffffffff8158c835 RDI: fffff52000719f62 [ 66.262526][ T4042] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9e30627 [ 66.270492][ T4042] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88814397b020 [ 66.279851][ T4042] R13: ffffffff89b581a0 R14: 1ffff92000719f98 R15: dffffc0000000000 [ 66.288336][ T4042] FS: 0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 [ 66.297769][ T4042] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 66.304813][ T4042] CR2: 00007fed5a152000 CR3: 0000000020df7000 CR4: 00000000001506f0 [ 66.313323][ T4042] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 66.321290][ T4042] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 66.330025][ T4042] Call Trace: [ 66.333795][ T4042] ? i2c_adapter_lock_bus+0x130/0x130 [ 66.339168][ T4042] dpm_sysfs_remove+0x97/0xb0 [ 66.344548][ T4042] device_del+0x20c/0xec0 [ 66.348877][ T4042] ? device_link_add_missing_supplier_links+0x370/0x370 [ 66.356563][ T4042] ? kobject_put+0x1f3/0x540 [ 66.361151][ T4042] ? __device_link_free_srcu+0x120/0x120 [ 66.367536][ T4042] ? i2c_adapter_lock_bus+0x130/0x130 [ 66.373484][ T4042] device_unregister+0x22/0xc0 [ 66.378243][ T4042] ? i2c_adapter_lock_bus+0x130/0x130 [ 66.384354][ T4042] __unregister_client+0x95/0xa0 [ 66.389305][ T4042] device_for_each_child+0xf9/0x170 [ 66.395280][ T4042] ? device_remove_class_symlinks+0x210/0x210 [ 66.401348][ T4042] i2c_del_adapter+0x37b/0x680 [ 66.407505][ T4042] ? del_timer_sync+0x12e/0x160 [ 66.412875][ T4042] pvr2_i2c_core_done+0x69/0xc0 [ 66.417735][ T4042] pvr2_hdw_destroy+0x179/0x3b0 [ 66.423357][ T4042] pvr2_context_destroy+0x84/0x230 [ 66.428462][ T4042] pvr2_context_thread_func+0x641/0x850 [ 66.434878][ T4042] ? pvr2_context_destroy+0x230/0x230 [ 66.440259][ T4042] ? add_wait_queue_exclusive+0x180/0x180 [ 66.446962][ T4042] ? lockdep_hardirqs_on+0x79/0x100 [ 66.452760][ T4042] ? __kthread_parkme+0x13f/0x1e0 [ 66.457780][ T4042] ? pvr2_context_destroy+0x230/0x230 [ 66.463961][ T4042] kthread+0x3b1/0x4a0 [ 66.468045][ T4042] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.474697][ T4042] ret_from_fork+0x1f/0x30 [ 66.479120][ T4042] Kernel panic - not syncing: panic_on_warn set ... [ 66.485688][ T4042] CPU: 0 PID: 4042 Comm: pvrusb2-context Not tainted 5.10.0-rc7-syzkaller #0 [ 66.494424][ T4042] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.501496][ T3002] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 66.504457][ T4042] Call Trace: [ 66.504479][ T4042] dump_stack+0x107/0x163 [ 66.504499][ T4042] panic+0x306/0x73d [ 66.523464][ T4042] ? __warn_printk+0xf3/0xf3 [ 66.528054][ T4042] ? __warn.cold+0x1a/0x44 [ 66.532453][ T4042] ? __warn+0xf1/0x210 [ 66.536505][ T4042] ? sysfs_remove_group+0x126/0x170 [ 66.541684][ T4042] __warn.cold+0x35/0x44 [ 66.545918][ T4042] ? sysfs_remove_group+0x126/0x170 [ 66.551100][ T4042] report_bug+0x1bd/0x210 [ 66.555436][ T4042] handle_bug+0x3c/0x60 [ 66.559591][ T4042] exc_invalid_op+0x14/0x40 [ 66.564084][ T4042] asm_exc_invalid_op+0x12/0x20 [ 66.568914][ T4042] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 66.574799][ T4042] 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 37 48 8b 33 48 c7 c7 e0 7b 5b 89 e8 e6 21 c5 06 <0f> 0b eb 98 e8 91 30 ca ff e9 01 ff ff ff 48 89 df e8 84 30 ca ff [ 66.594392][ T4042] RSP: 0018:ffffc900038cfb80 EFLAGS: 00010286 [ 66.600540][ T4042] RAX: 0000000000000000 RBX: ffffffff89b57c00 RCX: 0000000000000000 [ 66.608504][ T4042] RDX: ffff88801d4a3480 RSI: ffffffff8158c835 RDI: fffff52000719f62 [ 66.616460][ T4042] RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880b9e30627 [ 66.624422][ T4042] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88814397b020 [ 66.632384][ T4042] R13: ffffffff89b581a0 R14: 1ffff92000719f98 R15: dffffc0000000000 [ 66.640351][ T4042] ? vprintk_func+0x95/0x1e0 [ 66.645099][ T4042] ? i2c_adapter_lock_bus+0x130/0x130 [ 66.650450][ T4042] dpm_sysfs_remove+0x97/0xb0 [ 66.655108][ T4042] device_del+0x20c/0xec0 [ 66.659424][ T4042] ? device_link_add_missing_supplier_links+0x370/0x370 [ 66.666344][ T4042] ? kobject_put+0x1f3/0x540 [ 66.670915][ T4042] ? __device_link_free_srcu+0x120/0x120 [ 66.676529][ T4042] ? i2c_adapter_lock_bus+0x130/0x130 [ 66.681881][ T4042] device_unregister+0x22/0xc0 [ 66.686626][ T4042] ? i2c_adapter_lock_bus+0x130/0x130 [ 66.691975][ T4042] __unregister_client+0x95/0xa0 [ 66.696892][ T4042] device_for_each_child+0xf9/0x170 [ 66.702069][ T4042] ? device_remove_class_symlinks+0x210/0x210 [ 66.708126][ T4042] i2c_del_adapter+0x37b/0x680 [ 66.712883][ T4042] ? del_timer_sync+0x12e/0x160 [ 66.717718][ T4042] pvr2_i2c_core_done+0x69/0xc0 [ 66.722569][ T4042] pvr2_hdw_destroy+0x179/0x3b0 [ 66.727405][ T4042] pvr2_context_destroy+0x84/0x230 [ 66.732497][ T4042] pvr2_context_thread_func+0x641/0x850 [ 66.738111][ T4042] ? pvr2_context_destroy+0x230/0x230 [ 66.743478][ T4042] ? add_wait_queue_exclusive+0x180/0x180 [ 66.749195][ T4042] ? lockdep_hardirqs_on+0x79/0x100 [ 66.754376][ T4042] ? __kthread_parkme+0x13f/0x1e0 [ 66.759380][ T4042] ? pvr2_context_destroy+0x230/0x230 [ 66.764731][ T4042] kthread+0x3b1/0x4a0 [ 66.768788][ T4042] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 66.774664][ T4042] ret_from_fork+0x1f/0x30 [ 66.779805][ T4042] Kernel Offset: disabled [ 66.784184][ T4042] Rebooting in 86400 seconds..