[ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ 12.820183][ C1] random: crng init done [ 12.824487][ C1] random: 7 urandom warning(s) missed due to ratelimiting Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.15' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 32.791814][ T21] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 32.799837][ T83] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 32.807413][ T17] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 32.811734][ T95] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 32.815314][ T383] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 32.822788][ T12] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 32.892031][ T21] usb 6-1: Using ep0 maxpacket: 16 [ 32.912097][ T83] usb 1-1: Using ep0 maxpacket: 16 [ 32.917374][ T17] usb 4-1: Using ep0 maxpacket: 16 [ 32.923565][ T383] usb 3-1: Using ep0 maxpacket: 16 [ 32.931965][ T95] usb 5-1: Using ep0 maxpacket: 16 [ 32.937242][ T12] usb 2-1: Using ep0 maxpacket: 16 [ 33.011806][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.021756][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.033790][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.043625][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.054616][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.064358][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.071672][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.075447][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.084972][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.094704][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.108234][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.126214][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.191647][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.201530][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.212707][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.221701][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.222417][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.232108][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.243016][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.256532][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.263540][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.263635][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.263656][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.304760][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.341668][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.351460][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.362610][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.372323][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.383310][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.393054][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.404075][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.411461][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.413807][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.423442][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.445307][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.455018][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.511602][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.521412][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.532441][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.542181][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.553138][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.561458][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.562859][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.572434][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.583638][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.596889][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.604247][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.634452][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.681504][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.691212][ T383] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.702149][ T383] usb 3-1: New USB device found, idVendor=0573, idProduct=4d31, bcdDevice=83.91 [ 33.711217][ T383] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.719257][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.728992][ T83] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.739930][ T83] usb 1-1: New USB device found, idVendor=0573, idProduct=4d31, bcdDevice=83.91 [ 33.741234][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.749001][ T83] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.749071][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.758711][ T95] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.766686][ T17] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.777401][ T95] usb 5-1: New USB device found, idVendor=0573, idProduct=4d31, bcdDevice=83.91 [ 33.788237][ T17] usb 4-1: New USB device found, idVendor=0573, idProduct=4d31, bcdDevice=83.91 [ 33.799095][ T95] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.808112][ T17] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.821934][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.825195][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x1 has invalid wMaxPacketSize 0 [ 33.833225][ T12] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.842847][ T21] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x83 has an invalid bInterval 0, changing to 7 [ 33.852497][ T12] usb 2-1: New USB device found, idVendor=0573, idProduct=4d31, bcdDevice=83.91 [ 33.863342][ T21] usb 6-1: New USB device found, idVendor=0573, idProduct=4d31, bcdDevice=83.91 [ 33.874180][ T12] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.883197][ T21] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 33.908393][ T12] usb 2-1: config 0 descriptor?? [ 33.916260][ T95] usb 5-1: config 0 descriptor?? [ 33.922555][ T383] usb 3-1: config 0 descriptor?? [ 33.928429][ T83] usb 1-1: config 0 descriptor?? [ 33.934509][ T17] usb 4-1: config 0 descriptor?? [ 33.940413][ T21] usb 6-1: config 0 descriptor?? [ 33.963360][ T383] usbvision_probe: Hauppauge WinTV USB Pro (PAL B/G FM) found [ 33.973080][ T83] usbvision_probe: Hauppauge WinTV USB Pro (PAL B/G FM) found [ 33.980762][ T83] usb 1-1: usbvision_write_reg: failed: error -90 [ 33.983169][ T12] usbvision_probe: Hauppauge WinTV USB Pro (PAL B/G FM) found [ 33.987511][ T83] usbvision_audio_off: can't write reg [ 33.998821][ T95] usbvision_probe: Hauppauge WinTV USB Pro (PAL B/G FM) found [ 34.002160][ T17] usbvision_probe: Hauppauge WinTV USB Pro (PAL B/G FM) found [ 34.009558][ T95] usb 5-1: usbvision_write_reg: failed: error -90 [ 34.016949][ T21] usbvision_probe: Hauppauge WinTV USB Pro (PAL B/G FM) found [ 34.021589][ T95] usbvision_audio_off: can't write reg [ 34.030170][ T383] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.039151][ T12] usb 2-1: usbvision_write_reg: failed: error -90 [ 34.041293][ T383] usbvision_audio_off: can't write reg [ 34.042731][ T21] usb 6-1: usbvision_write_reg: failed: error -90 [ 34.047700][ T12] usbvision_audio_off: can't write reg [ 34.052830][ T12] usb 2-1: usbvision_write_reg: failed: error -90 [ 34.053241][ T21] usbvision_audio_off: can't write reg [ 34.061386][ T12] usb 2-1: usbvision_write_reg: failed: error -90 [ 34.066042][ T17] usb 4-1: usbvision_write_reg: failed: error -90 [ 34.074042][ T12] usb 2-1: usbvision_write_reg: failed: error -90 [ 34.077003][ T17] usbvision_audio_off: can't write reg [ 34.077421][ T383] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.112028][ T95] usb 5-1: usbvision_write_reg: failed: error -90 [ 34.117331][ T83] usb 1-1: usbvision_write_reg: failed: error -90 [ 34.124645][ T95] usb 5-1: usbvision_write_reg: failed: error -90 [ 34.127513][ T17] usb 4-1: usbvision_write_reg: failed: error -90 [ 34.145335][ T95] usb 5-1: usbvision_write_reg: failed: error -90 [ 34.147725][ T83] usb 1-1: usbvision_write_reg: failed: error -90 [ 34.158462][ T17] usb 4-1: usbvision_write_reg: failed: error -90 [ 34.165321][ T83] usb 1-1: usbvision_write_reg: failed: error -90 [ 34.176163][ T12] usb 2-1: usbvision_write_reg: failed: error -90 executing program executing program executing program executing program [ 34.182419][ T17] usb 4-1: usbvision_write_reg: failed: error -90 executing program [ 34.205639][ T21] usb 6-1: usbvision_write_reg: failed: error -90 [ 34.206537][ T12] usb 2-1: usbvision_write_reg: failed: error -90 [ 34.213060][ T383] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.218741][ T12] usbvision_i2c_register: can't write reg [ 34.235656][ T17] usb 4-1: usbvision_write_reg: failed: error -90 [ 34.243311][ T21] usb 6-1: usbvision_write_reg: failed: error -90 executing program [ 34.247309][ T95] usb 5-1: usbvision_write_reg: failed: error -90 [ 34.257826][ T83] usb 1-1: usbvision_write_reg: failed: error -90 [ 34.267107][ T12] USBVision[3]: registered USBVision Video device video0 [v4l2] [ 34.270567][ T17] usb 4-1: usbvision_write_reg: failed: error -90 [ 34.281545][ T17] usbvision_i2c_register: can't write reg [ 34.281742][ T95] usb 5-1: usbvision_write_reg: failed: error -90 [ 34.288368][ T21] usb 6-1: usbvision_write_reg: failed: error -90 [ 34.294001][ T95] usbvision_i2c_register: can't write reg [ 34.306315][ T12] USBVision[3]: registered USBVision Radio device radio0 [v4l2] [ 34.316259][ T83] usb 1-1: usbvision_write_reg: failed: error -90 [ 34.322751][ T83] usbvision_i2c_register: can't write reg [ 34.328855][ T383] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.328861][ T12] usb 2-1: USB disconnect, device number 2 [ 34.346460][ T95] USBVision[1]: registered USBVision Video device video1 [v4l2] [ 34.355590][ T21] usb 6-1: usbvision_write_reg: failed: error -90 [ 34.362542][ T21] usb 6-1: usbvision_write_reg: failed: error -90 [ 34.368982][ T21] usbvision_i2c_register: can't write reg [ 34.375028][ T17] USBVision[5]: registered USBVision Video device video2 [v4l2] [ 34.382952][ T83] USBVision[0]: registered USBVision Video device video0 [v4l2] [ 34.388757][ T95] USBVision[1]: registered USBVision Radio device radio0 [v4l2] [ 34.399657][ T17] USBVision[5]: registered USBVision Radio device radio2 [v4l2] [ 34.408742][ T83] USBVision[0]: registered USBVision Radio device radio1 [v4l2] [ 34.417368][ T412] usbvision_set_video_format: ERROR=-90. USBVISION stopped - reconnect or reload driver. [ 34.425623][ T383] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.434240][ T21] USBVision[4]: registered USBVision Video device video3 [v4l2] [ 34.437282][ T413] usbvision_set_video_format: ERROR=-90. USBVISION stopped - reconnect or reload driver. [ 34.455472][ T17] usb 4-1: USB disconnect, device number 2 [ 34.463730][ T95] usb 5-1: USB disconnect, device number 2 [ 34.466578][ T83] usb 1-1: USB disconnect, device number 2 [ 34.480724][ T412] usb 5-1: usbvision_set_dram_settings: ERROR=-19 [ 34.486199][ T383] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.493716][ T383] usbvision_i2c_register: can't write reg [ 34.496091][ T422] usb 1-1: usbvision_write_reg: failed: error -19 [ 34.502999][ T21] USBVision[4]: registered USBVision Radio device radio3 [v4l2] [ 34.506061][ T422] usbvision_set_audio: can't write iopin register for audio switching [ 34.520791][ T413] usb 4-1: usbvision_set_dram_settings: ERROR=-19 [ 34.525341][ T412] usbvision_set_compression_params: ERROR=-19. USBVISION stopped - reconnect or reload driver. [ 34.529824][ T83] usbvision_disconnect: In use, disconnect pending [ 34.547137][ T423] usbvision_set_video_format: ERROR=-90. USBVISION stopped - reconnect or reload driver. [ 34.554530][ T412] usb 5-1: usbvision_write_reg: failed: error -19 [ 34.564378][ T412] usbvision_set_input: ERROR=-19. USBVISION stopped - reconnect or reload driver. [ 34.565520][ T383] USBVision[2]: registered USBVision Video device video4 [v4l2] [ 34.576436][ T422] usbvision_radio_close: Final disconnect [ 34.582506][ T413] usbvision_set_compression_params: ERROR=-19. USBVISION stopped - reconnect or reload driver. [ 34.593031][ T422] ================================================================== [ 34.601598][ T21] usb 6-1: USB disconnect, device number 2 [ 34.605496][ T422] BUG: KASAN: use-after-free in v4l2_release+0x2f1/0x390 [ 34.605506][ T422] Read of size 4 at addr ffff8881cd399110 by task v4l_id/422 [ 34.605515][ T422] [ 34.618554][ T426] usbvision_set_video_format: ERROR=-90. USBVISION stopped - reconnect or reload driver. [ 34.625666][ T422] CPU: 0 PID: 422 Comm: v4l_id Not tainted 5.7.0-rc1-syzkaller #0 [ 34.625675][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.625679][ T422] Call Trace: [ 34.625697][ T422] dump_stack+0xef/0x16e [ 34.625713][ T422] print_address_description.constprop.0.cold+0xd3/0x314 [ 34.625733][ T422] ? v4l2_release+0x2f1/0x390 [ 34.625743][ T422] __kasan_report.cold+0x37/0x92 [ 34.625759][ T422] ? v4l2_release+0x2f1/0x390 [ 34.628664][ T423] usb 6-1: usbvision_set_dram_settings: ERROR=-19 [ 34.637861][ T422] ? v4l2_release+0x2f1/0x390 [ 34.637873][ T422] kasan_report+0x33/0x50 [ 34.637888][ T422] ? usbvision_disconnect+0x1e0/0x1e0 [ 34.637899][ T422] v4l2_release+0x2f1/0x390 [ 34.637912][ T422] ? dev_debug_store+0x100/0x100 [ 34.637921][ T422] __fput+0x33b/0x880 [ 34.637937][ T422] task_work_run+0xf4/0x1b0 [ 34.649357][ T413] usb 4-1: usbvision_write_reg: failed: error -19 [ 34.655761][ T422] exit_to_usermode_loop+0x1d2/0x200 [ 34.655772][ T422] do_syscall_64+0x4e0/0x5a0 [ 34.655787][ T422] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 34.655798][ T422] RIP: 0033:0x7f35ed1f2270 [ 34.655811][ T422] Code: 73 01 c3 48 8b 0d 38 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 59 c1 20 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ee fb ff ff 48 89 04 24 [ 34.655823][ T422] RSP: 002b:00007ffc0d93a578 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 34.659090][ T413] usbvision_set_input: ERROR=-19. USBVISION stopped - reconnect or reload driver. [ 34.663322][ T422] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f35ed1f2270 [ 34.663330][ T422] RDX: 00007ffc0d93a5a0 RSI: 0000000080685600 RDI: 0000000000000003 [ 34.663338][ T422] RBP: 00007f35ed822698 R08: 0000000000000000 R09: 0000000000000000 [ 34.663346][ T422] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000013 [ 34.663353][ T422] R13: 00007ffc0d93a700 R14: 0000000000000000 R15: 0000000000000000 [ 34.663358][ T422] [ 34.663365][ T422] Allocated by task 83: [ 34.663387][ T422] save_stack+0x1b/0x40 [ 34.671159][ T426] usb 3-1: usbvision_set_dram_settings: ERROR=-90 [ 34.675034][ T422] __kasan_kmalloc.constprop.0+0xbf/0xd0 [ 34.675048][ T422] usbvision_probe.cold+0x5c5/0x1f21 [ 34.675065][ T422] usb_probe_interface+0x310/0x800 [ 34.680034][ T426] usbvision_set_compression_params: ERROR=-90. USBVISION stopped - reconnect or reload driver. [ 34.684621][ T422] really_probe+0x290/0xac0 [ 34.684633][ T422] driver_probe_device+0x223/0x350 [ 34.684644][ T422] __device_attach_driver+0x1d1/0x290 [ 34.684656][ T422] bus_for_each_drv+0x162/0x1e0 [ 34.684668][ T422] __device_attach+0x21a/0x390 [ 34.684678][ T422] bus_probe_device+0x1e4/0x290 [ 34.684687][ T422] device_add+0x1367/0x1c20 [ 34.684703][ T422] usb_set_configuration+0xed4/0x1850 [ 34.691646][ T423] usbvision_set_compression_params: ERROR=-19. USBVISION stopped - reconnect or reload driver. [ 34.695759][ T422] usb_generic_driver_probe+0x9d/0xe0 [ 34.695771][ T422] usb_probe_device+0xd9/0x230 [ 34.695787][ T422] really_probe+0x290/0xac0 [ 34.700169][ T413] usb 4-1: usbvision_set_output failed: error -19 [ 34.705437][ T422] driver_probe_device+0x223/0x350 [ 34.705448][ T422] __device_attach_driver+0x1d1/0x290 [ 34.705459][ T422] bus_for_each_drv+0x162/0x1e0 [ 34.705470][ T422] __device_attach+0x21a/0x390 [ 34.705482][ T422] bus_probe_device+0x1e4/0x290 [ 34.705492][ T422] device_add+0x1367/0x1c20 [ 34.705505][ T422] usb_new_device.cold+0x552/0xf6e [ 34.705516][ T422] hub_event+0x226d/0x43c0 [ 34.705531][ T422] process_one_work+0x965/0x1630 [ 34.712113][ T423] usb 6-1: usbvision_write_reg: failed: error -19 [ 34.714933][ T422] worker_thread+0x96/0xe20 [ 34.714944][ T422] kthread+0x326/0x430 [ 34.714961][ T422] ret_from_fork+0x24/0x30 [ 34.718922][ T423] usbvision_set_input: ERROR=-19. USBVISION stopped - reconnect or reload driver. [ 34.723384][ T422] [ 34.723391][ T422] Freed by task 422: [ 34.723405][ T422] save_stack+0x1b/0x40 [ 34.723418][ T422] __kasan_slab_free+0x117/0x160 [ 34.723428][ T422] kfree+0xd5/0x300 [ 34.723440][ T422] usbvision_release+0x181/0x1c0 [ 34.723457][ T422] usbvision_radio_close.cold+0x2b/0x74 [ 34.731591][ T426] usb 3-1: usbvision_write_reg: failed: error -90 [ 34.735101][ T422] v4l2_release+0x2e7/0x390 [ 34.739667][ T426] usbvision_set_input: ERROR=-90. USBVISION stopped - reconnect or reload driver. [ 34.745526][ T422] __fput+0x33b/0x880 [ 34.745537][ T422] task_work_run+0xf4/0x1b0 [ 34.745548][ T422] exit_to_usermode_loop+0x1d2/0x200 [ 34.745558][ T422] do_syscall_64+0x4e0/0x5a0 [ 34.745572][ T422] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 34.745575][ T422] [ 34.745584][ T422] The buggy address belongs to the object at ffff8881cd398000 [ 34.745584][ T422] which belongs to the cache kmalloc-8k of size 8192 [ 34.745599][ T422] The buggy address is located 4368 bytes inside of [ 34.745599][ T422] 8192-byte region [ffff8881cd398000, ffff8881cd39a000) [ 34.750208][ T413] usb 4-1: usbvision_write_reg: failed: error -19 [ 34.769555][ T422] The buggy address belongs to the page: [ 34.769574][ T422] page:ffffea000734e600 refcount:1 mapcount:0 mapping:0000000068c93950 index:0x0 head:ffffea000734e600 order:3 compound_mapcount:0 compound_pincount:0 [ 34.769584][ T422] flags: 0x200000000010200(slab|head) [ 34.769602][ T422] raw: 0200000000010200 dead000000000100 dead000000000122 ffff8881da00c500 [ 34.769616][ T422] raw: 0000000000000000 0000000000020002 00000001ffffffff 0000000000000000 [ 34.769621][ T422] page dumped because: kasan: bad access detected [ 34.769624][ T422] [ 34.769628][ T422] Memory state around the buggy address: [ 34.769639][ T422] ffff8881cd399000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.769651][ T422] ffff8881cd399080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.780927][ T383] USBVision[2]: registered USBVision Radio device radio4 [v4l2] [ 34.787286][ T422] >ffff8881cd399100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.787292][ T422] ^ [ 34.787301][ T422] ffff8881cd399180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.787313][ T422] ffff8881cd399200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 34.799673][ T423] usb 6-1: usbvision_set_output failed: error -19 [ 34.803233][ T422] ================================================================== [ 34.803238][ T422] Disabling lock debugging due to kernel taint [ 34.803344][ T422] Kernel panic - not syncing: panic_on_warn set ... [ 34.812597][ T383] usb 3-1: USB disconnect, device number 2 [ 34.819210][ T422] CPU: 0 PID: 422 Comm: v4l_id Tainted: G B 5.7.0-rc1-syzkaller #0 [ 34.819222][ T422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.827396][ T423] usb 6-1: usbvision_write_reg: failed: error -19 [ 34.829466][ T422] Call Trace: [ 34.829482][ T422] dump_stack+0xef/0x16e [ 34.829498][ T422] panic+0x2aa/0x6e1 [ 34.834231][ T423] usb 6-1: usbvision_write_reg: failed: error -19 [ 34.837753][ T422] ? add_taint.cold+0x16/0x16 [ 34.837772][ T422] ? v4l2_release+0x2f1/0x390 [ 34.844300][ T413] usb 4-1: usbvision_write_reg: failed: error -19 [ 34.849759][ T422] ? trace_hardirqs_on+0x55/0x200 [ 34.849775][ T422] ? v4l2_release+0x2f1/0x390 [ 34.855164][ T412] usb 5-1: usbvision_set_output failed: error -19 [ 34.860123][ T422] end_report+0x4d/0x53 [ 34.860139][ T422] __kasan_report.cold+0x72/0x92 [ 34.870521][ T423] usb 6-1: usbvision_read_reg: failed: error -19 [ 34.874896][ T422] ? v4l2_release+0x2f1/0x390 [ 34.874912][ T422] ? v4l2_release+0x2f1/0x390 [ 34.880032][ T413] usb 4-1: usbvision_read_reg: failed: error -19 [ 34.885324][ T422] kasan_report+0x33/0x50 [ 34.885338][ T422] ? usbvision_disconnect+0x1e0/0x1e0 [ 34.885354][ T422] v4l2_release+0x2f1/0x390 [ 34.890245][ T423] usb 6-1: usbvision_write_reg: failed: error -19 [ 34.894904][ T422] ? dev_debug_store+0x100/0x100 [ 34.894914][ T422] __fput+0x33b/0x880 [ 34.894926][ T422] task_work_run+0xf4/0x1b0 [ 34.894943][ T422] exit_to_usermode_loop+0x1d2/0x200 [ 34.899759][ T423] usbvision_set_audio: can't write iopin register for audio switching [ 34.904230][ T422] do_syscall_64+0x4e0/0x5a0 [ 34.904243][ T422] entry_SYSCALL_64_after_hwframe+0x49/0xb3 [ 34.904251][ T422] RIP: 0033:0x7f35ed1f2270 [ 34.904267][ T422] Code: 73 01 c3 48 8b 0d 38 7d 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 59 c1 20 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ee fb ff ff 48 89 04 24 [ 34.909952][ T424] video4linux radio3: usbvision_radio_open: Someone tried to open an already opened USBVision Radio! [ 34.919884][ T422] RSP: 002b:00007ffc0d93a578 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 [ 34.919895][ T422] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f35ed1f2270 [ 34.919901][ T422] RDX: 00007ffc0d93a5a0 RSI: 0000000080685600 RDI: 0000000000000003 [ 34.919907][ T422] RBP: 00007f35ed822698 R08: 0000000000000000 R09: 0000000000000000 [ 34.919913][ T422] R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000013 [ 34.919919][ T422] R13: 00007ffc0d93a700 R14: 0000000000000000 R15: 0000000000000000 [ 34.925853][ T422] Kernel Offset: disabled [ 35.520307][ T422] Rebooting in 86400 seconds..