[ OK ] Started Daily apt download activities. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. Starting Permit User Sessions... [ OK ] Started System Logging Service. [ OK ] Found device /dev/ttyS0. [ 63.451353][ T8083] sshd (8083) used greatest stack depth: 22976 bytes left [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.155' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 81.923144][ T37] audit: type=1400 audit(1619612294.434:8): avc: denied { execmem } for pid=8394 comm="syz-executor235" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 82.187352][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 82.447137][ T5] usb 1-1: Using ep0 maxpacket: 16 [ 82.567246][ T5] usb 1-1: config 0 has an invalid interface number: 121 but max is 0 [ 82.576332][ T5] usb 1-1: config 0 has no interface number 0 [ 82.584586][ T5] usb 1-1: config 0 interface 121 altsetting 0 has a duplicate endpoint with address 0xF, skipping [ 82.757486][ T5] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=8e.9f [ 82.767354][ T5] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 82.776373][ T5] usb 1-1: Product: syz [ 82.782712][ T5] usb 1-1: Manufacturer: syz [ 82.788379][ T5] usb 1-1: SerialNumber: syz [ 82.808022][ T5] usb 1-1: config 0 descriptor?? [ 82.870619][ T5] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 executing program [ 83.098536][ T3954] pvrusb2: Invalid write control endpoint [ 83.102658][ T5] usb 1-1: USB disconnect, device number 2 [ 83.221137][ T3954] pvrusb2: Invalid write control endpoint [ 83.227848][ T3954] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 83.239622][ T3954] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 83.249769][ T3954] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 83.261201][ T3954] pvrusb2: Device being rendered inoperable [ 83.269122][ T3954] cx25840 1-0044: Unable to detect h/w, assuming cx23887 [ 83.278294][ T3954] cx25840 1-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 83.291464][ T3954] pvrusb2: Attached sub-driver cx25840 [ 83.305248][ T3954] pvrusb2: Attempted to execute control transfer when device not ok [ 83.314648][ T3954] pvrusb2: Attempted to execute control transfer when device not ok [ 83.323675][ T3954] pvrusb2: Attempted to execute control transfer when device not ok [ 83.332421][ T3954] pvrusb2: Attempted to execute control transfer when device not ok [ 83.341422][ T3954] 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. [ 83.383360][ T3954] TUNER: Unable to find symbol tda829x_probe() [ 83.401021][ T3954] DVB: Unable to find symbol tda9887_attach() [ 83.408758][ T3954] tuner: 1-0043: Tuner 4 found with type(s) Radio TV. [ 83.418000][ T3954] pvrusb2: Attached sub-driver tuner [ 83.424219][ T3954] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 83.437418][ T3954] 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. [ 83.466731][ T3954] ------------[ cut here ]------------ [ 83.473850][ T3954] sysfs group 'power' not found for kobject '1-0043' [ 83.495554][ T3954] WARNING: CPU: 1 PID: 3954 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 [ 83.508371][ T3954] Modules linked in: [ 83.513362][ T3954] CPU: 1 PID: 3954 Comm: pvrusb2-context Not tainted 5.12.0-syzkaller #0 [ 83.524829][ T3954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.537081][ T3954] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 83.544005][ T3954] 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 60 1d 7c 89 e8 92 54 d7 06 <0f> 0b eb 98 e8 f1 36 c9 ff e9 01 ff ff ff 48 89 df e8 e4 36 c9 ff [ 83.569497][ T3954] RSP: 0018:ffffc90002b9fb80 EFLAGS: 00010286 [ 83.576568][ T3954] RAX: 0000000000000000 RBX: ffffffff89d9be00 RCX: 0000000000000000 [ 83.585618][ T3954] RDX: ffff88801faa8280 RSI: ffffffff815b73d5 RDI: fffff52000573f62 [ 83.595609][ T3954] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 83.605470][ T3954] R10: ffffffff815b013e R11: 0000000000000000 R12: ffff88802e2a8020 [ 83.615023][ T3954] R13: ffffffff89d9c3a0 R14: 1ffff92000573f98 R15: dffffc0000000000 [ 83.625866][ T3954] FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 [ 83.637388][ T3954] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 83.644505][ T3954] CR2: 00007f8385dc9000 CR3: 0000000016014000 CR4: 00000000001506e0 [ 83.653445][ T3954] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 83.662224][ T3954] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 83.671675][ T3954] Call Trace: [ 83.675442][ T3954] ? i2c_adapter_lock_bus+0x130/0x130 [ 83.681496][ T3954] dpm_sysfs_remove+0x97/0xb0 [ 83.686972][ T3954] device_del+0x20c/0xd40 [ 83.691977][ T3954] ? lockdep_hardirqs_on+0x79/0x100 [ 83.698266][ T3954] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 83.705269][ T3954] ? kobject_put+0x1f3/0x540 [ 83.710812][ T3954] ? __device_link_free_srcu+0x120/0x120 [ 83.717481][ T3954] ? i2c_adapter_lock_bus+0x130/0x130 [ 83.723651][ T3954] device_unregister+0x22/0xc0 [ 83.728793][ T3954] ? i2c_adapter_lock_bus+0x130/0x130 [ 83.734856][ T3954] __unregister_client+0x95/0xa0 [ 83.740325][ T3954] device_for_each_child+0xf9/0x170 [ 83.746115][ T3954] ? device_remove_class_symlinks+0x210/0x210 [ 83.754366][ T3954] ? __radix_tree_lookup+0x211/0x2a0 [ 83.760877][ T3954] i2c_del_adapter+0x37b/0x680 [ 83.766702][ T3954] ? del_timer_sync+0x17e/0x1b0 [ 83.772620][ T3954] pvr2_i2c_core_done+0x69/0xc0 [ 83.778757][ T3954] pvr2_hdw_destroy+0x179/0x3b0 [ 83.783765][ T3954] pvr2_context_destroy+0x84/0x230 [ 83.789703][ T3954] pvr2_context_thread_func+0x64b/0x850 [ 83.796219][ T3954] ? pvr2_context_destroy+0x230/0x230 [ 83.802783][ T3954] ? finish_wait+0x260/0x260 [ 83.807908][ T3954] ? lockdep_hardirqs_on+0x79/0x100 [ 83.813894][ T3954] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 83.820531][ T5] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 83.829171][ T3954] ? __kthread_parkme+0x13f/0x1e0 [ 83.834912][ T3954] ? pvr2_context_destroy+0x230/0x230 [ 83.841007][ T3954] kthread+0x3b1/0x4a0 [ 83.845321][ T3954] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 83.851642][ T3954] ret_from_fork+0x1f/0x30 [ 83.856617][ T3954] Kernel panic - not syncing: panic_on_warn set ... [ 83.863738][ T3954] CPU: 0 PID: 3954 Comm: pvrusb2-context Not tainted 5.12.0-syzkaller #0 [ 83.873021][ T3954] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.884375][ T3954] Call Trace: [ 83.887927][ T3954] dump_stack+0x141/0x1d7 [ 83.892912][ T3954] panic+0x306/0x73d [ 83.897611][ T3954] ? __warn_printk+0xf3/0xf3 [ 83.902843][ T3954] ? __warn.cold+0x1a/0x44 [ 83.907555][ T3954] ? sysfs_remove_group+0x126/0x170 [ 83.913070][ T3954] __warn.cold+0x35/0x44 [ 83.917594][ T3954] ? sysfs_remove_group+0x126/0x170 [ 83.923419][ T3954] report_bug+0x1bd/0x210 [ 83.928266][ T3954] handle_bug+0x3c/0x60 [ 83.932610][ T3954] exc_invalid_op+0x14/0x40 [ 83.937297][ T3954] asm_exc_invalid_op+0x12/0x20 [ 83.942627][ T3954] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 83.949936][ T3954] 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 60 1d 7c 89 e8 92 54 d7 06 <0f> 0b eb 98 e8 f1 36 c9 ff e9 01 ff ff ff 48 89 df e8 e4 36 c9 ff [ 83.971664][ T3954] RSP: 0018:ffffc90002b9fb80 EFLAGS: 00010286 [ 83.977980][ T3954] RAX: 0000000000000000 RBX: ffffffff89d9be00 RCX: 0000000000000000 [ 83.986342][ T3954] RDX: ffff88801faa8280 RSI: ffffffff815b73d5 RDI: fffff52000573f62 [ 83.995156][ T3954] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 84.004390][ T3954] R10: ffffffff815b013e R11: 0000000000000000 R12: ffff88802e2a8020 [ 84.012901][ T3954] R13: ffffffff89d9c3a0 R14: 1ffff92000573f98 R15: dffffc0000000000 [ 84.021278][ T3954] ? wake_up_klogd.part.0+0x8e/0xd0 [ 84.026665][ T3954] ? vprintk_func+0x95/0x1e0 [ 84.031448][ T3954] ? i2c_adapter_lock_bus+0x130/0x130 [ 84.037050][ T3954] dpm_sysfs_remove+0x97/0xb0 [ 84.042284][ T3954] device_del+0x20c/0xd40 [ 84.047024][ T3954] ? lockdep_hardirqs_on+0x79/0x100 [ 84.052410][ T3954] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 84.058840][ T3954] ? kobject_put+0x1f3/0x540 [ 84.063640][ T3954] ? __device_link_free_srcu+0x120/0x120 [ 84.070103][ T3954] ? i2c_adapter_lock_bus+0x130/0x130 [ 84.075847][ T3954] device_unregister+0x22/0xc0 [ 84.080930][ T3954] ? i2c_adapter_lock_bus+0x130/0x130 [ 84.086405][ T3954] __unregister_client+0x95/0xa0 [ 84.091813][ T3954] device_for_each_child+0xf9/0x170 [ 84.097139][ T3954] ? device_remove_class_symlinks+0x210/0x210 [ 84.104047][ T3954] ? __radix_tree_lookup+0x211/0x2a0 [ 84.109503][ T3954] i2c_del_adapter+0x37b/0x680 [ 84.114415][ T3954] ? del_timer_sync+0x17e/0x1b0 [ 84.119497][ T3954] pvr2_i2c_core_done+0x69/0xc0 [ 84.124882][ T3954] pvr2_hdw_destroy+0x179/0x3b0 [ 84.130490][ T3954] pvr2_context_destroy+0x84/0x230 [ 84.135794][ T3954] pvr2_context_thread_func+0x64b/0x850 [ 84.141815][ T3954] ? pvr2_context_destroy+0x230/0x230 [ 84.147611][ T3954] ? finish_wait+0x260/0x260 [ 84.152485][ T3954] ? lockdep_hardirqs_on+0x79/0x100 [ 84.157922][ T3954] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 84.164513][ T3954] ? __kthread_parkme+0x13f/0x1e0 [ 84.169747][ T3954] ? pvr2_context_destroy+0x230/0x230 [ 84.175340][ T3954] kthread+0x3b1/0x4a0 [ 84.179427][ T3954] ? kthread_create_worker_on_cpu+0xf0/0xf0 [ 84.185573][ T3954] ret_from_fork+0x1f/0x30 [ 84.191991][ T3954] Kernel Offset: disabled [ 84.196432][ T3954] Rebooting in 86400 seconds..