Warning: Permanently added '10.128.0.224' (ECDSA) to the list of known hosts. executing program [ 50.705765][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 50.945668][ T7] usb 1-1: Using ep0 maxpacket: 8 [ 51.066698][ T7] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 51.235772][ T7] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=f7.d7 [ 51.244930][ T7] usb 1-1: New USB device strings: Mfr=69, Product=191, SerialNumber=179 [ 51.253872][ T7] usb 1-1: Product: syz [ 51.258745][ T7] usb 1-1: Manufacturer: syz [ 51.263386][ T7] usb 1-1: SerialNumber: syz [ 51.276213][ T7] usb 1-1: config 0 descriptor?? executing program [ 51.579054][ T7] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 51.606435][ T3948] pvrusb2: Invalid write control endpoint [ 51.623929][ T7] usb 1-1: USB disconnect, device number 2 [ 51.668413][ T3948] pvrusb2: Invalid write control endpoint [ 51.674274][ T3948] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 51.686490][ T3948] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 51.694173][ T3948] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 51.704768][ T3948] pvrusb2: Device being rendered inoperable [ 51.712236][ T3948] cx25840 1-0044: Unable to detect h/w, assuming cx23887 [ 51.720949][ T3948] cx25840 1-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 51.731542][ T3948] pvrusb2: Attached sub-driver cx25840 [ 51.744560][ T3948] pvrusb2: Attempted to execute control transfer when device not ok [ 51.752825][ T3948] pvrusb2: Attempted to execute control transfer when device not ok [ 51.760982][ T3948] pvrusb2: Attempted to execute control transfer when device not ok [ 51.769091][ T3948] pvrusb2: Attempted to execute control transfer when device not ok [ 51.777244][ T3948] 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. [ 51.814094][ T3948] TUNER: Unable to find symbol tda829x_probe() [ 51.828436][ T3948] DVB: Unable to find symbol tda9887_attach() [ 51.834528][ T3948] tuner: 1-0043: Tuner 4 found with type(s) Radio TV. [ 51.842036][ T3948] pvrusb2: Attached sub-driver tuner [ 51.848794][ T3948] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 51.861734][ T3948] 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. [ 51.889291][ T3948] ------------[ cut here ]------------ [ 51.894926][ T3948] sysfs group 'power' not found for kobject '1-0044' [ 51.902418][ T3948] WARNING: CPU: 0 PID: 3948 at fs/sysfs/group.c:281 sysfs_remove_group+0x16e/0x280 [ 51.912558][ T3948] Modules linked in: [ 51.916691][ T3948] CPU: 0 PID: 3948 Comm: pvrusb2-context Not tainted 5.12.0-rc6-syzkaller #0 [ 51.925562][ T3948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.936177][ T3948] RIP: 0010:sysfs_remove_group+0x16e/0x280 [ 51.942463][ T3948] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 27 8f cb ff 49 8b 14 24 48 c7 c7 00 1a c2 89 4c 89 f6 31 c0 e8 d2 8c 56 ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 40 a8 87 ff 49 8d 5e 20 [ 51.964645][ T3948] RSP: 0018:ffffc9000308fc08 EFLAGS: 00010246 [ 51.971327][ T3948] RAX: c8ded595888b8200 RBX: ffff888026987050 RCX: ffff88801d8a8000 [ 51.980399][ T3948] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 51.989040][ T3948] RBP: 1ffffffff1459c10 R08: ffffffff8160b612 R09: ffffed1017385fe8 [ 51.997234][ T3948] R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff888026987020 [ 52.006033][ T3948] R13: dffffc0000000000 R14: ffffffff8a2ce040 R15: ffff888013a4be80 [ 52.014770][ T3948] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 52.024474][ T3948] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.031263][ T3948] CR2: 00005585ab63354f CR3: 000000000c48e000 CR4: 00000000001506f0 [ 52.039374][ T3948] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.047867][ T3948] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.056529][ T3948] Call Trace: [ 52.059844][ T3948] device_del+0x26a/0xa90 [ 52.064949][ T3948] device_unregister+0x1a/0xc0 [ 52.070077][ T3948] __unregister_client+0x15b/0x180 [ 52.075459][ T3948] ? __process_removed_adapter+0x30/0x30 [ 52.081541][ T3948] device_for_each_child+0x9c/0x100 [ 52.087430][ T3948] i2c_del_adapter+0x234/0x7f0 [ 52.092437][ T3948] pvr2_i2c_core_done+0x55/0xb0 [ 52.097873][ T3948] pvr2_hdw_destroy+0x150/0x2b0 [ 52.102889][ T3948] pvr2_context_destroy+0x7a/0x3c0 [ 52.109666][ T3948] ? pvr2_context_thread_func+0x3d5/0xa90 [ 52.115543][ T3948] pvr2_context_thread_func+0x3dd/0xa90 [ 52.121139][ T3948] ? init_wait_entry+0xd0/0xd0 [ 52.126141][ T3948] ? pvr2_context_global_init+0x60/0x60 [ 52.132094][ T3948] kthread+0x39a/0x3c0 [ 52.137128][ T3948] ? pvr2_context_global_init+0x60/0x60 [ 52.142706][ T3948] ? kthread_blkcg+0xd0/0xd0 [ 52.147908][ T3948] ret_from_fork+0x1f/0x30 [ 52.152828][ T3948] Kernel panic - not syncing: panic_on_warn set ... [ 52.160424][ T3948] CPU: 0 PID: 3948 Comm: pvrusb2-context Not tainted 5.12.0-rc6-syzkaller #0 [ 52.169354][ T3948] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.179598][ T3948] Call Trace: [ 52.182965][ T3948] dump_stack+0x176/0x24e [ 52.187404][ T3948] panic+0x291/0x800 [ 52.191315][ T3948] ? __warn+0x13e/0x270 [ 52.195658][ T3948] __warn+0x26a/0x270 [ 52.199662][ T3948] ? sysfs_remove_group+0x16e/0x280 [ 52.205200][ T3948] ? sysfs_remove_group+0x16e/0x280 [ 52.210610][ T3948] report_bug+0x1b1/0x2e0 [ 52.214972][ T3948] handle_bug+0x3d/0x70 [ 52.219268][ T3948] exc_invalid_op+0x16/0x40 [ 52.224060][ T3948] asm_exc_invalid_op+0x12/0x20 [ 52.229197][ T3948] RIP: 0010:sysfs_remove_group+0x16e/0x280 [ 52.235868][ T3948] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 27 8f cb ff 49 8b 14 24 48 c7 c7 00 1a c2 89 4c 89 f6 31 c0 e8 d2 8c 56 ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 40 a8 87 ff 49 8d 5e 20 [ 52.259108][ T3948] RSP: 0018:ffffc9000308fc08 EFLAGS: 00010246 [ 52.265497][ T3948] RAX: c8ded595888b8200 RBX: ffff888026987050 RCX: ffff88801d8a8000 [ 52.274025][ T3948] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 52.282609][ T3948] RBP: 1ffffffff1459c10 R08: ffffffff8160b612 R09: ffffed1017385fe8 [ 52.291403][ T3948] R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff888026987020 [ 52.300789][ T3948] R13: dffffc0000000000 R14: ffffffff8a2ce040 R15: ffff888013a4be80 [ 52.309217][ T3948] ? wake_up_klogd+0xb2/0xf0 [ 52.314119][ T3948] ? sysfs_remove_group+0x16e/0x280 [ 52.319517][ T3948] device_del+0x26a/0xa90 [ 52.324265][ T3948] device_unregister+0x1a/0xc0 [ 52.329660][ T3948] __unregister_client+0x15b/0x180 [ 52.335183][ T3948] ? __process_removed_adapter+0x30/0x30 [ 52.341382][ T3948] device_for_each_child+0x9c/0x100 [ 52.346749][ T3948] i2c_del_adapter+0x234/0x7f0 [ 52.351821][ T3948] pvr2_i2c_core_done+0x55/0xb0 [ 52.357819][ T3948] pvr2_hdw_destroy+0x150/0x2b0 [ 52.362936][ T3948] pvr2_context_destroy+0x7a/0x3c0 [ 52.368230][ T3948] ? pvr2_context_thread_func+0x3d5/0xa90 [ 52.374166][ T3948] pvr2_context_thread_func+0x3dd/0xa90 [ 52.379722][ T3948] ? init_wait_entry+0xd0/0xd0 [ 52.384634][ T3948] ? pvr2_context_global_init+0x60/0x60 [ 52.390184][ T3948] kthread+0x39a/0x3c0 [ 52.394458][ T3948] ? pvr2_context_global_init+0x60/0x60 [ 52.400008][ T3948] ? kthread_blkcg+0xd0/0xd0 [ 52.404743][ T3948] ret_from_fork+0x1f/0x30 [ 52.410177][ T3948] Kernel Offset: disabled [ 52.415015][ T3948] Rebooting in 86400 seconds..