Warning: Permanently added '10.128.0.66' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 36.328772][ T2664] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 36.568075][ T2664] usb 1-1: Using ep0 maxpacket: 8 [ 36.698085][ T2664] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 36.868013][ T2664] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=f7.d7 [ 36.877144][ T2664] usb 1-1: New USB device strings: Mfr=69, Product=191, SerialNumber=179 [ 36.885615][ T2664] usb 1-1: Product: syz [ 36.889834][ T2664] usb 1-1: Manufacturer: syz [ 36.894476][ T2664] usb 1-1: SerialNumber: syz [ 36.902405][ T2664] usb 1-1: config 0 descriptor?? executing program [ 37.180969][ T2664] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 37.208243][ T2389] pvrusb2: Invalid write control endpoint [ 37.210992][ T2664] usb 1-1: USB disconnect, device number 2 [ 37.262169][ T2389] pvrusb2: Invalid write control endpoint [ 37.268216][ T2389] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 37.277636][ T2389] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 37.285241][ T2389] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 37.295297][ T2389] pvrusb2: Device being rendered inoperable [ 37.301731][ T2389] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 37.309082][ T2389] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 37.318828][ T2389] pvrusb2: Attached sub-driver cx25840 [ 37.329899][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 37.338109][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 37.346086][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 37.354128][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 37.362197][ T2389] 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. [ 37.392663][ T2389] TUNER: Unable to find symbol tda829x_probe() [ 37.406820][ T2389] DVB: Unable to find symbol tda9887_attach() [ 37.413154][ T2389] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 37.420621][ T2389] pvrusb2: Attached sub-driver tuner [ 37.425914][ T2389] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 37.439041][ T2389] 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. [ 37.467326][ T2389] ------------[ cut here ]------------ [ 37.472904][ T2389] sysfs group 'power' not found for kobject '0-0043' [ 37.479800][ T2389] WARNING: CPU: 1 PID: 2389 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 [ 37.489158][ T2389] Modules linked in: [ 37.493064][ T2389] CPU: 1 PID: 2389 Comm: pvrusb2-context Not tainted 5.12.0-rc4-syzkaller #0 [ 37.501851][ T2389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.511971][ T2389] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 37.517839][ T2389] 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 a0 db 12 86 e8 eb e8 eb 03 <0f> 0b eb 98 e8 b1 8c d5 ff e9 01 ff ff ff 48 89 df e8 a4 8c d5 ff [ 37.537524][ T2389] RSP: 0018:ffffc90006677b80 EFLAGS: 00010286 [ 37.543663][ T2389] RAX: 0000000000000000 RBX: ffffffff863d7960 RCX: 0000000000000000 [ 37.551683][ T2389] RDX: ffff888109adb680 RSI: ffffffff8129fa03 RDI: fffff52000ccef62 [ 37.559747][ T2389] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 37.567857][ T2389] R10: ffffffff814ab91b R11: 0000000000000000 R12: ffff888114031020 [ 37.575836][ T2389] R13: ffffffff863d7f00 R14: 1ffff92000ccef98 R15: dffffc0000000000 [ 37.583857][ T2389] FS: 0000000000000000(0000) GS:ffff8881f6b00000(0000) knlGS:0000000000000000 [ 37.592847][ T2389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.599472][ T2389] CR2: 000055d593c9a8e8 CR3: 0000000101aa5000 CR4: 00000000001506e0 [ 37.607474][ T2389] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.615513][ T2389] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.623567][ T2389] Call Trace: [ 37.626857][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 37.632264][ T2389] dpm_sysfs_remove+0x97/0xb0 [ 37.636949][ T2389] device_del+0x20c/0xd40 [ 37.641311][ T2389] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 37.647698][ T2389] ? kobject_put+0x1f3/0x540 [ 37.652311][ T2389] ? __device_link_free_srcu+0x120/0x120 [ 37.657974][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 37.663618][ T2389] device_unregister+0x22/0xc0 [ 37.668418][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 37.673804][ T2389] __unregister_client+0x95/0xa0 [ 37.678786][ T2389] device_for_each_child+0xf9/0x170 [ 37.683995][ T2389] ? device_remove_class_symlinks+0x210/0x210 [ 37.690118][ T2389] ? __radix_tree_lookup+0x211/0x2a0 [ 37.695411][ T2389] i2c_del_adapter+0x37b/0x680 [ 37.700297][ T2389] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 37.706299][ T2389] pvr2_i2c_core_done+0x69/0xc0 [ 37.711201][ T2389] pvr2_hdw_destroy+0x179/0x3b0 [ 37.716061][ T2389] pvr2_context_destroy+0x84/0x230 [ 37.721208][ T2389] pvr2_context_thread_func+0x64b/0x850 [ 37.726784][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 37.732196][ T2389] ? finish_wait+0x260/0x260 [ 37.736889][ T2389] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 37.743165][ T2389] ? __kthread_parkme+0x118/0x1d0 [ 37.748265][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 37.753668][ T2389] kthread+0x38c/0x460 [ 37.757790][ T2389] ? _raw_spin_unlock_irq+0x1f/0x30 [ 37.762998][ T2389] ? __kthread_bind_mask+0xc0/0xc0 [ 37.768167][ T2389] ret_from_fork+0x1f/0x30 [ 37.772594][ T2389] Kernel panic - not syncing: panic_on_warn set ... [ 37.779165][ T2389] CPU: 1 PID: 2389 Comm: pvrusb2-context Not tainted 5.12.0-rc4-syzkaller #0 [ 37.787908][ T2389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.797970][ T2389] Call Trace: [ 37.801271][ T2389] dump_stack+0x143/0x1db [ 37.805690][ T2389] panic+0x306/0x73d [ 37.809572][ T2389] ? __warn_printk+0xf3/0xf3 [ 37.814147][ T2389] ? __warn.cold+0x1a/0x44 [ 37.818546][ T2389] ? sysfs_remove_group+0x126/0x170 [ 37.823862][ T2389] __warn.cold+0x35/0x44 [ 37.828092][ T2389] ? irq_work_queue+0x44/0x50 [ 37.832762][ T2389] ? sysfs_remove_group+0x126/0x170 [ 37.838039][ T2389] report_bug+0x1bd/0x210 [ 37.842448][ T2389] handle_bug+0x3c/0x60 [ 37.846607][ T2389] exc_invalid_op+0x14/0x40 [ 37.851119][ T2389] asm_exc_invalid_op+0x12/0x20 [ 37.855976][ T2389] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 37.861774][ T2389] 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 a0 db 12 86 e8 eb e8 eb 03 <0f> 0b eb 98 e8 b1 8c d5 ff e9 01 ff ff ff 48 89 df e8 a4 8c d5 ff [ 37.881363][ T2389] RSP: 0018:ffffc90006677b80 EFLAGS: 00010286 [ 37.887424][ T2389] RAX: 0000000000000000 RBX: ffffffff863d7960 RCX: 0000000000000000 [ 37.895402][ T2389] RDX: ffff888109adb680 RSI: ffffffff8129fa03 RDI: fffff52000ccef62 [ 37.903360][ T2389] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 37.911330][ T2389] R10: ffffffff814ab91b R11: 0000000000000000 R12: ffff888114031020 [ 37.919288][ T2389] R13: ffffffff863d7f00 R14: 1ffff92000ccef98 R15: dffffc0000000000 [ 37.927279][ T2389] ? __irq_work_queue_local+0xbb/0xf0 [ 37.932655][ T2389] ? vprintk_func+0x93/0x140 [ 37.937237][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 37.942594][ T2389] dpm_sysfs_remove+0x97/0xb0 [ 37.947260][ T2389] device_del+0x20c/0xd40 [ 37.951580][ T2389] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 37.957921][ T2389] ? kobject_put+0x1f3/0x540 [ 37.962529][ T2389] ? __device_link_free_srcu+0x120/0x120 [ 37.968165][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 37.973523][ T2389] device_unregister+0x22/0xc0 [ 37.978273][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 37.983646][ T2389] __unregister_client+0x95/0xa0 [ 37.988590][ T2389] device_for_each_child+0xf9/0x170 [ 37.993795][ T2389] ? device_remove_class_symlinks+0x210/0x210 [ 37.999850][ T2389] ? __radix_tree_lookup+0x211/0x2a0 [ 38.005122][ T2389] i2c_del_adapter+0x37b/0x680 [ 38.009871][ T2389] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 38.015839][ T2389] pvr2_i2c_core_done+0x69/0xc0 [ 38.020679][ T2389] pvr2_hdw_destroy+0x179/0x3b0 [ 38.025525][ T2389] pvr2_context_destroy+0x84/0x230 [ 38.030624][ T2389] pvr2_context_thread_func+0x64b/0x850 [ 38.036241][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 38.041610][ T2389] ? finish_wait+0x260/0x260 [ 38.046188][ T2389] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 38.052431][ T2389] ? __kthread_parkme+0x118/0x1d0 [ 38.057460][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 38.062924][ T2389] kthread+0x38c/0x460 [ 38.066977][ T2389] ? _raw_spin_unlock_irq+0x1f/0x30 [ 38.072176][ T2389] ? __kthread_bind_mask+0xc0/0xc0 [ 38.077271][ T2389] ret_from_fork+0x1f/0x30 [ 38.082336][ T2389] Kernel Offset: disabled [ 38.086723][ T2389] Rebooting in 86400 seconds..