[ 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. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.70' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 49.883374][ T2926] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 50.253429][ T2926] usb 1-1: config 0 has an invalid interface number: 145 but max is 3 [ 50.261748][ T2926] usb 1-1: config 0 contains an unexpected descriptor of type 0x2, skipping [ 50.271097][ T2926] usb 1-1: config 0 has an invalid interface number: 205 but max is 3 [ 50.279454][ T2926] usb 1-1: config 0 has an invalid interface descriptor of length 2, skipping [ 50.288560][ T2926] usb 1-1: config 0 has an invalid interface number: 76 but max is 3 [ 50.296874][ T2926] usb 1-1: config 0 has an invalid interface number: 206 but max is 3 [ 50.305247][ T2926] usb 1-1: config 0 has an invalid interface descriptor of length 2, skipping [ 50.314312][ T2926] usb 1-1: config 0 has no interface number 0 [ 50.320392][ T2926] usb 1-1: config 0 has no interface number 1 [ 50.326744][ T2926] usb 1-1: config 0 has no interface number 2 [ 50.332855][ T2926] usb 1-1: config 0 has no interface number 3 [ 50.339194][ T2926] usb 1-1: config 0 interface 145 altsetting 0 bulk endpoint 0x4 has invalid maxpacket 8 [ 50.349891][ T2926] usb 1-1: config 0 interface 145 altsetting 0 endpoint 0x8 has invalid maxpacket 1024, setting to 64 [ 50.361038][ T2926] usb 1-1: config 0 interface 145 altsetting 0 bulk endpoint 0xE has invalid maxpacket 8 [ 50.371061][ T2926] usb 1-1: config 0 interface 145 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 50.382017][ T2926] usb 1-1: config 0 interface 145 altsetting 0 has a duplicate endpoint with address 0xA, skipping [ 50.392917][ T2926] usb 1-1: config 0 interface 145 altsetting 0 has a duplicate endpoint with address 0xC, skipping [ 50.403863][ T2926] usb 1-1: config 0 interface 145 altsetting 0 has a duplicate endpoint with address 0xC, skipping [ 50.414775][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0xF, skipping [ 50.425630][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has an invalid endpoint with address 0x0, skipping [ 50.436440][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0xA, skipping [ 50.447235][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0xA, skipping [ 50.458018][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0x4, skipping [ 50.468766][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0xC, skipping [ 50.479535][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0xA, skipping [ 50.490290][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has a duplicate endpoint with address 0x5, skipping [ 50.501076][ T2926] usb 1-1: config 0 interface 205 altsetting 6 endpoint 0x9 has an invalid bInterval 132, changing to 11 [ 50.512385][ T2926] usb 1-1: config 0 interface 205 altsetting 6 has 10 endpoint descriptors, different from the interface descriptor's value: 13 [ 50.525688][ T2926] usb 1-1: config 0 interface 76 altsetting 0 has a duplicate endpoint with address 0xC, skipping [ 50.536396][ T2926] usb 1-1: config 0 interface 76 altsetting 0 has a duplicate endpoint with address 0x5, skipping [ 50.547067][ T2926] usb 1-1: config 0 interface 76 altsetting 0 has an invalid endpoint with address 0x80, skipping [ 50.557797][ T2926] usb 1-1: config 0 interface 76 altsetting 0 has an invalid endpoint descriptor of length 2, skipping [ 50.569310][ T2926] usb 1-1: config 0 interface 76 altsetting 0 has 4 endpoint descriptors, different from the interface descriptor's value: 3 [ 50.582526][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x2, skipping [ 50.593468][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0xD, skipping [ 50.604397][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0xA, skipping [ 50.615329][ T2926] usb 1-1: config 0 interface 206 altsetting 249 endpoint 0x3 has an invalid bInterval 34, changing to 9 [ 50.626591][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x9, skipping [ 50.637538][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x3, skipping [ 50.648443][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has an invalid endpoint with address 0x0, skipping [ 50.659394][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x9, skipping [ 50.670350][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0xA, skipping [ 50.681309][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x2, skipping [ 50.692263][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has an invalid endpoint descriptor of length 2, skipping [ 50.703616][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x2, skipping [ 50.714564][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has a duplicate endpoint with address 0x7, skipping [ 50.725508][ T2926] usb 1-1: config 0 interface 206 altsetting 249 has 14 endpoint descriptors, different from the interface descriptor's value: 13 [ 50.738968][ T2926] usb 1-1: config 0 interface 205 has no altsetting 0 [ 50.745820][ T2926] usb 1-1: config 0 interface 206 has no altsetting 0 [ 50.913230][ T2926] usb 1-1: New USB device found, idVendor=0ccd, idProduct=0039, bcdDevice=8f.d4 [ 50.922308][ T2926] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 50.930403][ T2926] usb 1-1: Product: syz [ 50.934638][ T2926] usb 1-1: Manufacturer: syz [ 50.939251][ T2926] usb 1-1: SerialNumber: syz [ 50.947813][ T2926] usb 1-1: config 0 descriptor?? [ 50.983989][ T8376] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 51.266462][ T2926] pvrusb2: Hardware description: Terratec Grabster AV400 [ 51.274082][ T2926] pvrusb2: ********** [ 51.278171][ T2926] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 51.289897][ T2926] pvrusb2: Important functionality might not be entirely working. [ 51.298390][ T2926] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 51.310286][ T2926] pvrusb2: ********** [ 51.344008][ T3940] pvrusb2: Invalid write control endpoint [ 51.394903][ T2926] pvrusb2: Hardware description: Terratec Grabster AV400 [ 51.395380][ T3940] pvrusb2: Invalid write control endpoint [ 51.401956][ T2926] pvrusb2: ********** [ 51.401980][ T2926] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 51.422955][ T3940] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 51.432450][ T3940] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 51.436587][ T2926] pvrusb2: Important functionality might not be entirely working. [ 51.453945][ T3940] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 51.455559][ T2926] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 51.475845][ T3940] pvrusb2: Device being rendered inoperable [ 51.478073][ T2926] pvrusb2: ********** [ 51.482486][ T3940] cx25840 1-0044: Unable to detect h/w, assuming cx23887 [ 51.487718][ T2926] usb 1-1: selecting invalid altsetting 0 [ 51.494835][ T3940] cx25840 1-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 51.510891][ T3940] pvrusb2: Attached sub-driver cx25840 [ 51.516731][ T3940] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 51.528589][ T3940] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 51.538049][ T3940] pvrusb2: Invalid write control endpoint [ 51.548392][ T2926] pvrusb2: Hardware description: Terratec Grabster AV400 [ 51.559152][ T2926] pvrusb2: ********** [ 51.564268][ T2926] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 51.576898][ T2926] pvrusb2: Important functionality might not be entirely working. [ 51.594345][ T2926] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 51.601781][ T3940] pvrusb2: Invalid write control endpoint [ 51.607049][ T2926] pvrusb2: ********** [ 51.614391][ T3940] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 51.627240][ T3940] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 51.635896][ T3940] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 51.647268][ T3940] pvrusb2: Device being rendered inoperable [ 51.653516][ T3940] cx25840 2-0044: Unable to detect h/w, assuming cx23887 [ 51.661173][ T3940] cx25840 2-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_b) [ 51.670480][ T3940] pvrusb2: Attached sub-driver cx25840 [ 51.676210][ T3940] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 51.684809][ T2926] pvrusb2: Hardware description: Terratec Grabster AV400 [ 51.691755][ T3940] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 51.703038][ T2926] pvrusb2: ********** [ 51.705387][ T3940] pvrusb2: Invalid write control endpoint [ 51.707023][ T2926] pvrusb2: ***WARNING*** Support for this device (Terratec Grabster AV400) is experimental. [ 51.707036][ T2926] pvrusb2: Important functionality might not be entirely working. [ 51.707044][ T2926] pvrusb2: Please consider contacting the driver author to help with further stabilization of the driver. [ 51.707053][ T2926] pvrusb2: ********** [ 51.707272][ T2926] usb 1-1: selecting invalid altsetting 0 [ 51.765019][ T3940] pvrusb2: Invalid write control endpoint [ 51.770789][ T3940] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 51.784144][ T2926] usb 1-1: USB disconnect, device number 2 [ 51.793909][ T3940] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 51.801471][ T3940] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 51.812727][ T3940] pvrusb2: Device being rendered inoperable [ 51.820394][ T3940] cx25840 3-0044: Unable to detect h/w, assuming cx23887 [ 51.830534][ T3940] cx25840 3-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_c) [ 51.841221][ T3940] pvrusb2: Attached sub-driver cx25840 [ 51.848932][ T3940] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 51.860718][ T3940] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 51.870958][ T3940] pvrusb2: Invalid write control endpoint [ 51.892152][ T3940] pvrusb2: Invalid write control endpoint [ 51.902823][ T3940] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 51.912114][ T3940] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 51.928735][ T3940] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 51.939477][ T3940] pvrusb2: Device being rendered inoperable [ 51.951571][ T3940] cx25840 4-0044: Unable to detect h/w, assuming cx23887 [ 51.959929][ T3940] cx25840 4-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_d) [ 51.969321][ T3940] pvrusb2: Attached sub-driver cx25840 [ 51.975501][ T3940] pvrusb2: ***WARNING*** pvrusb2 device hardware appears to be jammed and I can't clear it. [ 51.986400][ T3940] pvrusb2: You might need to power cycle the pvrusb2 device in order to recover. [ 52.011545][ T3940] ------------[ cut here ]------------ [ 52.020909][ T3940] sysfs group 'power' not found for kobject 'i2c-3' [ 52.029211][ T3940] WARNING: CPU: 0 PID: 3940 at fs/sysfs/group.c:281 sysfs_remove_group+0x16e/0x280 [ 52.042933][ T3940] Modules linked in: [ 52.046952][ T3940] CPU: 1 PID: 3940 Comm: pvrusb2-context Not tainted 5.12.0-rc6-syzkaller #0 [ 52.063277][ T3940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.074157][ T3940] RIP: 0010:sysfs_remove_group+0x16e/0x280 [ 52.080021][ T3940] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 17 8e cb ff 49 8b 14 24 48 c7 c7 00 1a c2 89 4c 89 f6 31 c0 e8 a2 8b 56 ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 a7 87 ff 49 8d 5e 20 [ 52.101203][ T3940] RSP: 0018:ffffc90002f77c80 EFLAGS: 00010246 [ 52.108617][ T3940] RAX: 15113154d8ef8e00 RBX: ffff8880196e03a8 RCX: ffff88801db91c40 [ 52.117491][ T3940] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 52.126028][ T3940] RBP: 1ffffffff1459c10 R08: ffffffff8160b632 R09: ffffed1017385fe8 [ 52.134718][ T3940] R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff8880196e0378 [ 52.143475][ T3940] R13: dffffc0000000000 R14: ffffffff8a2ce040 R15: ffff888013dea740 [ 52.151450][ T3940] FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 [ 52.161417][ T3940] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.168682][ T3940] CR2: 00007fdc3603c000 CR3: 0000000011851000 CR4: 00000000001506f0 [ 52.178055][ T3940] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 52.187410][ T3940] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 52.196068][ T3940] Call Trace: [ 52.199361][ T3940] device_del+0x26a/0xa90 [ 52.204795][ T3940] device_unregister+0x1a/0xc0 [ 52.209579][ T3940] i2c_del_adapter+0x370/0x7f0 [ 52.215349][ T3940] pvr2_i2c_core_done+0x55/0xb0 [ 52.220214][ T3940] pvr2_hdw_destroy+0x150/0x2b0 [ 52.226318][ T3940] pvr2_context_destroy+0x7a/0x3c0 [ 52.231428][ T3940] ? pvr2_context_thread_func+0x3d5/0xa90 [ 52.238181][ T3940] pvr2_context_thread_func+0x3dd/0xa90 [ 52.244560][ T3940] ? init_wait_entry+0xd0/0xd0 [ 52.249347][ T3940] ? pvr2_context_global_init+0x60/0x60 [ 52.255873][ T3940] kthread+0x39a/0x3c0 [ 52.259970][ T3940] ? pvr2_context_global_init+0x60/0x60 [ 52.266513][ T3940] ? kthread_blkcg+0xd0/0xd0 [ 52.271121][ T3940] ret_from_fork+0x1f/0x30 [ 52.276600][ T3940] Kernel panic - not syncing: panic_on_warn set ... [ 52.283199][ T3940] CPU: 0 PID: 3940 Comm: pvrusb2-context Not tainted 5.12.0-rc6-syzkaller #0 [ 52.291953][ T3940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.302007][ T3940] Call Trace: [ 52.305277][ T3940] dump_stack+0x176/0x24e [ 52.309605][ T3940] panic+0x291/0x800 [ 52.313534][ T3940] ? __warn+0x13e/0x270 [ 52.317677][ T3940] __warn+0x26a/0x270 [ 52.321641][ T3940] ? sysfs_remove_group+0x16e/0x280 [ 52.326841][ T3940] ? sysfs_remove_group+0x16e/0x280 [ 52.332022][ T3940] report_bug+0x1b1/0x2e0 [ 52.336351][ T3940] handle_bug+0x3d/0x70 [ 52.340508][ T3940] exc_invalid_op+0x16/0x40 [ 52.345021][ T3940] asm_exc_invalid_op+0x12/0x20 [ 52.349855][ T3940] RIP: 0010:sysfs_remove_group+0x16e/0x280 [ 52.355668][ T3940] Code: 89 e0 48 c1 e8 03 42 80 3c 28 00 74 08 4c 89 e7 e8 17 8e cb ff 49 8b 14 24 48 c7 c7 00 1a c2 89 4c 89 f6 31 c0 e8 a2 8b 56 ff <0f> 0b 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 30 a7 87 ff 49 8d 5e 20 [ 52.375364][ T3940] RSP: 0018:ffffc90002f77c80 EFLAGS: 00010246 [ 52.381421][ T3940] RAX: 15113154d8ef8e00 RBX: ffff8880196e03a8 RCX: ffff88801db91c40 [ 52.389389][ T3940] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 52.397365][ T3940] RBP: 1ffffffff1459c10 R08: ffffffff8160b632 R09: ffffed1017385fe8 [ 52.405328][ T3940] R10: ffffed1017385fe8 R11: 0000000000000000 R12: ffff8880196e0378 [ 52.413290][ T3940] R13: dffffc0000000000 R14: ffffffff8a2ce040 R15: ffff888013dea740 [ 52.421275][ T3940] ? wake_up_klogd+0xb2/0xf0 [ 52.425865][ T3940] device_del+0x26a/0xa90 [ 52.430202][ T3940] device_unregister+0x1a/0xc0 [ 52.434984][ T3940] i2c_del_adapter+0x370/0x7f0 [ 52.439738][ T3940] pvr2_i2c_core_done+0x55/0xb0 [ 52.444587][ T3940] pvr2_hdw_destroy+0x150/0x2b0 [ 52.449431][ T3940] pvr2_context_destroy+0x7a/0x3c0 [ 52.454532][ T3940] ? pvr2_context_thread_func+0x3d5/0xa90 [ 52.460716][ T3940] pvr2_context_thread_func+0x3dd/0xa90 [ 52.466269][ T3940] ? init_wait_entry+0xd0/0xd0 [ 52.471027][ T3940] ? pvr2_context_global_init+0x60/0x60 [ 52.476555][ T3940] kthread+0x39a/0x3c0 [ 52.480606][ T3940] ? pvr2_context_global_init+0x60/0x60 [ 52.486143][ T3940] ? kthread_blkcg+0xd0/0xd0 [ 52.490724][ T3940] ret_from_fork+0x1f/0x30 [ 52.495555][ T3940] Kernel Offset: disabled [ 52.499931][ T3940] Rebooting in 86400 seconds..