Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 31.925641][ T17] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 31.934819][ T2625] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 31.943908][ T31] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 31.945539][ T7] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 31.959292][ T2187] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 31.967124][ T5] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 32.325469][ T2187] usb 4-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 32.334547][ T2187] usb 4-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 32.343861][ T5] usb 6-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 32.352797][ T5] usb 6-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 32.362218][ T7] usb 5-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 32.371315][ T7] usb 5-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 32.380627][ T5] usb 6-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 32.385473][ T2625] usb 3-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 32.391751][ T5] usb 6-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 32.400605][ T2625] usb 3-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 32.409658][ T5] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.418981][ T17] usb 1-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 32.427735][ T2187] usb 4-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 32.436582][ T17] usb 1-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 32.447671][ T2187] usb 4-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 32.456834][ T31] usb 2-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 32.465827][ T2187] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.474734][ T31] usb 2-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 32.485318][ T7] usb 5-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 32.492365][ T2625] usb 3-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 32.503039][ T7] usb 5-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 32.503060][ T7] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.531364][ T2625] usb 3-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 32.540762][ T2625] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.550399][ T31] usb 2-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 32.559002][ T2187] em28xx 4-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 32.561669][ T31] usb 2-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 32.570622][ T2187] em28xx 4-1:255.0: Video interface 0 found: isoc [ 32.579942][ T31] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.585209][ T17] usb 1-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 32.597406][ T5] em28xx 6-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 32.605612][ T17] usb 1-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 32.605627][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 32.631731][ T5] em28xx 6-1:255.0: Video interface 0 found: isoc [ 32.640427][ T7] em28xx 5-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 32.649376][ T7] em28xx 5-1:255.0: Video interface 0 found: isoc [ 32.717502][ T17] em28xx 1-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 32.726536][ T17] em28xx 1-1:255.0: Video interface 0 found: isoc [ 32.737473][ T31] em28xx 2-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 32.746481][ T31] em28xx 2-1:255.0: Video interface 0 found: isoc [ 32.756139][ T2625] em28xx 3-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) executing program executing program [ 32.765084][ T2625] em28xx 3-1:255.0: Video interface 0 found: isoc executing program executing program executing program [ 32.885176][ T5] em28xx 6-1:255.0: unknown em28xx chip ID (0) [ 32.891505][ T2187] em28xx 4-1:255.0: unknown em28xx chip ID (0) [ 32.898906][ T7] em28xx 5-1:255.0: unknown em28xx chip ID (0) executing program [ 33.035141][ T2625] em28xx 3-1:255.0: unknown em28xx chip ID (0) [ 33.041443][ T17] em28xx 1-1:255.0: unknown em28xx chip ID (0) [ 33.047958][ T31] em28xx 2-1:255.0: unknown em28xx chip ID (0) [ 33.125204][ T7] em28xx 5-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 33.135680][ T7] em28xx 5-1:255.0: board has no eeprom [ 33.142230][ T5] em28xx 6-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 33.150885][ T5] em28xx 6-1:255.0: board has no eeprom [ 33.164923][ T2187] em28xx 4-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 33.173124][ T2187] em28xx 4-1:255.0: board has no eeprom [ 33.284835][ T7] em28xx 5-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 33.292914][ T7] em28xx 5-1:255.0: analog set to isoc mode. [ 33.304301][ T2187] em28xx 4-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 33.312596][ T2187] em28xx 4-1:255.0: analog set to isoc mode. [ 33.319367][ T5] em28xx 6-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 33.324974][ T31] em28xx 2-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 33.327435][ T5] em28xx 6-1:255.0: analog set to isoc mode. [ 33.335696][ T31] em28xx 2-1:255.0: board has no eeprom [ 33.347388][ T17] em28xx 1-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 33.355641][ T17] em28xx 1-1:255.0: board has no eeprom [ 33.361428][ T2625] em28xx 3-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 33.369858][ T2625] em28xx 3-1:255.0: board has no eeprom [ 33.375906][ T4404] em28xx 5-1:255.0: Registering V4L2 extension [ 33.386183][ T7] usb 5-1: USB disconnect, device number 2 [ 33.394016][ T7] em28xx 5-1:255.0: Disconnecting em28xx [ 33.406975][ T2187] usb 4-1: USB disconnect, device number 2 [ 33.413423][ T2187] em28xx 4-1:255.0: Disconnecting em28xx [ 33.421464][ T5] usb 6-1: USB disconnect, device number 2 [ 33.439904][ T5] em28xx 6-1:255.0: Disconnecting em28xx [ 33.474222][ T4404] em28xx 5-1:255.0: Config register raw data: 0xffffffed [ 33.481485][ T4404] em28xx 5-1:255.0: AC97 chip type couldn't be determined [ 33.488945][ T4404] em28xx 5-1:255.0: No AC97 audio processor [ 33.497003][ T4404] usb 5-1: Decoder not found [ 33.501618][ T4404] em28xx 5-1:255.0: failed to create media graph [ 33.515802][ T17] em28xx 1-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 33.523857][ T17] em28xx 1-1:255.0: analog set to isoc mode. [ 33.524809][ T4404] em28xx 5-1:255.0: V4L2 device video0 deregistered [ 33.529949][ T2625] em28xx 3-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 33.544574][ T2625] em28xx 3-1:255.0: analog set to isoc mode. [ 33.550901][ T31] em28xx 2-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 33.559057][ T31] em28xx 2-1:255.0: analog set to isoc mode. [ 33.564419][ T4404] em28xx 5-1:255.0: Binding DVB extension [ 33.577172][ T4404] em28xx 5-1:255.0: no endpoint for DVB mode and transfer type 0 [ 33.585250][ T4404] em28xx 5-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 33.586679][ T31] usb 2-1: USB disconnect, device number 2 [ 33.593714][ T4404] em28xx 5-1:255.0: Registering input extension [ 33.599777][ T17] usb 1-1: USB disconnect, device number 2 [ 33.611924][ T2625] usb 3-1: USB disconnect, device number 2 [ 33.618760][ T17] em28xx 1-1:255.0: Disconnecting em28xx [ 33.647457][ T2625] em28xx 3-1:255.0: Disconnecting em28xx [ 33.654474][ T31] em28xx 2-1:255.0: Disconnecting em28xx [ 33.678054][ T4401] em28xx 4-1:255.0: Registering V4L2 extension [ 33.703362][ T4401] em28xx 4-1:255.0: Config register raw data: 0xffffffed [ 33.711438][ T4401] em28xx 4-1:255.0: AC97 chip type couldn't be determined [ 33.718765][ T4401] em28xx 4-1:255.0: No AC97 audio processor [ 33.727751][ T4401] usb 4-1: Decoder not found [ 33.732898][ T4401] em28xx 4-1:255.0: failed to create media graph [ 33.744301][ T4401] em28xx 4-1:255.0: V4L2 device video0 deregistered [ 33.753295][ T4401] em28xx 4-1:255.0: Binding DVB extension [ 33.765768][ T4401] em28xx 4-1:255.0: no endpoint for DVB mode and transfer type 0 [ 33.774350][ T4401] em28xx 4-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 33.783975][ T4401] em28xx 4-1:255.0: Registering input extension [ 33.793322][ T4470] em28xx 6-1:255.0: Registering V4L2 extension [ 33.811482][ T4470] em28xx 6-1:255.0: Config register raw data: 0xffffffed [ 33.818643][ T4470] em28xx 6-1:255.0: AC97 chip type couldn't be determined [ 33.825833][ T4470] em28xx 6-1:255.0: No AC97 audio processor [ 33.835845][ T4470] usb 6-1: Decoder not found [ 33.840809][ T4470] em28xx 6-1:255.0: failed to create media graph [ 33.853170][ T4470] em28xx 6-1:255.0: V4L2 device video0 deregistered [ 33.862322][ T4470] em28xx 6-1:255.0: Binding DVB extension [ 33.870240][ T4470] em28xx 6-1:255.0: no endpoint for DVB mode and transfer type 0 [ 33.879642][ T4470] em28xx 6-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 33.888251][ T4470] em28xx 6-1:255.0: Registering input extension [ 33.897127][ T4399] em28xx 1-1:255.0: Registering V4L2 extension [ 33.917036][ T4399] em28xx 1-1:255.0: Config register raw data: 0xffffffed [ 33.924366][ T4399] em28xx 1-1:255.0: AC97 chip type couldn't be determined [ 33.934091][ T4399] em28xx 1-1:255.0: No AC97 audio processor [ 33.943252][ T4399] usb 1-1: Decoder not found [ 33.949001][ T4399] em28xx 1-1:255.0: failed to create media graph [ 33.956392][ T4399] em28xx 1-1:255.0: V4L2 device video0 deregistered [ 33.964502][ T4399] em28xx 1-1:255.0: Binding DVB extension [ 33.970555][ T4399] em28xx 1-1:255.0: no endpoint for DVB mode and transfer type 0 [ 33.979042][ T4399] em28xx 1-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 33.987557][ T4399] em28xx 1-1:255.0: Registering input extension [ 33.994523][ T4396] em28xx 3-1:255.0: Registering V4L2 extension [ 34.015202][ T4396] em28xx 3-1:255.0: Config register raw data: 0xffffffed [ 34.022299][ T4396] em28xx 3-1:255.0: AC97 chip type couldn't be determined [ 34.029658][ T4396] em28xx 3-1:255.0: No AC97 audio processor [ 34.036829][ T4396] usb 3-1: Decoder not found [ 34.041481][ T4396] em28xx 3-1:255.0: failed to create media graph [ 34.048513][ T4396] em28xx 3-1:255.0: V4L2 device video0 deregistered [ 34.057052][ T4396] em28xx 3-1:255.0: Binding DVB extension [ 34.062835][ T4396] em28xx 3-1:255.0: no endpoint for DVB mode and transfer type 0 [ 34.071859][ T4396] em28xx 3-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 34.080372][ T4396] em28xx 3-1:255.0: Registering input extension [ 34.087695][ T4478] em28xx 2-1:255.0: Registering V4L2 extension [ 34.113308][ T4478] em28xx 2-1:255.0: Config register raw data: 0xffffffed [ 34.120783][ T4478] em28xx 2-1:255.0: AC97 chip type couldn't be determined [ 34.128233][ T4478] em28xx 2-1:255.0: No AC97 audio processor [ 34.135590][ T4478] usb 2-1: Decoder not found [ 34.140216][ T4478] em28xx 2-1:255.0: failed to create media graph [ 34.146784][ T4478] em28xx 2-1:255.0: V4L2 device video0 deregistered [ 34.154664][ T4478] em28xx 2-1:255.0: Binding DVB extension [ 34.160430][ T4478] em28xx 2-1:255.0: no endpoint for DVB mode and transfer type 0 [ 34.168279][ T4478] em28xx 2-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 34.176785][ T4478] em28xx 2-1:255.0: Registering input extension [ 34.183878][ T7] em28xx 5-1:255.0: Closing input extension [ 34.200660][ T2187] em28xx 4-1:255.0: Closing input extension [ 34.208256][ T5] em28xx 6-1:255.0: Closing input extension [ 34.214657][ T17] em28xx 1-1:255.0: Closing input extension [ 34.224067][ T2187] em28xx 4-1:255.0: Freeing device [ 34.230038][ T2625] em28xx 3-1:255.0: Closing input extension [ 34.231236][ T5] em28xx 6-1:255.0: Freeing device [ 34.236378][ T31] em28xx 2-1:255.0: Closing input extension [ 34.243837][ T7] em28xx 5-1:255.0: Freeing device [ 34.248760][ T17] em28xx 1-1:255.0: Freeing device [ 34.262086][ T2625] em28xx 3-1:255.0: Freeing device [ 34.283733][ T31] em28xx 2-1:255.0: Freeing device [ 34.634161][ T7] usb 5-1: new high-speed USB device number 3 using dummy_hcd [ 34.645118][ T5] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 34.652723][ T2187] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 34.694150][ T2625] usb 3-1: new high-speed USB device number 3 using dummy_hcd [ 34.702007][ T31] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 34.710123][ T17] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 35.004289][ T5] usb 6-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 35.013199][ T5] usb 6-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 35.022708][ T2187] usb 4-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 35.031870][ T2187] usb 4-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 35.041677][ T7] usb 5-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 35.050728][ T7] usb 5-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 35.060367][ T5] usb 6-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 35.072929][ T5] usb 6-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 35.083077][ T5] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.092249][ T7] usb 5-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 35.094409][ T2625] usb 3-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 35.104315][ T7] usb 5-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 35.104335][ T7] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.113193][ T2625] usb 3-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 35.122378][ T2187] usb 4-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 35.130532][ T2625] usb 3-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 35.139665][ T2187] usb 4-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 35.150733][ T2625] usb 3-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 35.162409][ T2187] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.171439][ T2625] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.204504][ T17] usb 1-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 35.213398][ T17] usb 1-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 35.216051][ T7] em28xx 5-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 35.223074][ T31] usb 2-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 35.231600][ T7] em28xx 5-1:255.0: Video interface 0 found: isoc [ 35.240394][ T31] usb 2-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 35.249220][ T5] em28xx 6-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 35.265121][ T5] em28xx 6-1:255.0: Video interface 0 found: isoc [ 35.274978][ T2187] em28xx 4-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 35.284163][ T2187] em28xx 4-1:255.0: Video interface 0 found: isoc [ 35.294099][ T17] usb 1-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 35.305377][ T17] usb 1-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 35.314470][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 executing program [ 35.359611][ T31] usb 2-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 35.371346][ T31] usb 2-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 35.380526][ T31] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 35.390852][ T2625] em28xx 3-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 35.399816][ T2625] em28xx 3-1:255.0: Video interface 0 found: isoc executing program executing program [ 35.456377][ T17] em28xx 1-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 35.465487][ T17] em28xx 1-1:255.0: Video interface 0 found: isoc [ 35.487154][ T31] em28xx 2-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 35.496847][ T31] em28xx 2-1:255.0: Video interface 0 found: isoc [ 35.514251][ T7] em28xx 5-1:255.0: unknown em28xx chip ID (0) [ 35.520867][ T5] em28xx 6-1:255.0: unknown em28xx chip ID (0) [ 35.527377][ T2187] em28xx 4-1:255.0: unknown em28xx chip ID (0) executing program executing program executing program [ 35.644138][ T2625] em28xx 3-1:255.0: unknown em28xx chip ID (0) [ 35.744808][ T7] em28xx 5-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 35.753304][ T7] em28xx 5-1:255.0: board has no eeprom [ 35.759562][ T2187] em28xx 4-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 35.763908][ T31] em28xx 2-1:255.0: unknown em28xx chip ID (0) [ 35.767829][ T2187] em28xx 4-1:255.0: board has no eeprom [ 35.774099][ T17] em28xx 1-1:255.0: unknown em28xx chip ID (0) [ 35.780059][ T5] em28xx 6-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 35.795789][ T5] em28xx 6-1:255.0: board has no eeprom [ 35.893684][ T2625] em28xx 3-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 35.902361][ T2625] em28xx 3-1:255.0: board has no eeprom [ 35.913608][ T5] em28xx 6-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 35.922555][ T5] em28xx 6-1:255.0: analog set to isoc mode. [ 35.928828][ T2187] em28xx 4-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 35.937016][ T2187] em28xx 4-1:255.0: analog set to isoc mode. [ 35.943051][ T7] em28xx 5-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 35.951211][ T7] em28xx 5-1:255.0: analog set to isoc mode. [ 35.967689][ T7] usb 5-1: USB disconnect, device number 3 [ 35.975161][ T2187] usb 4-1: USB disconnect, device number 3 [ 35.981602][ T2187] em28xx 4-1:255.0: Disconnecting em28xx [ 35.994391][ T5] usb 6-1: USB disconnect, device number 3 [ 36.001019][ T5] em28xx 6-1:255.0: Disconnecting em28xx [ 36.015970][ T2625] em28xx 3-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 36.018326][ T7] em28xx 5-1:255.0: Disconnecting em28xx [ 36.024012][ T2625] em28xx 3-1:255.0: analog set to isoc mode. [ 36.043615][ T31] em28xx 2-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 36.051905][ T31] em28xx 2-1:255.0: board has no eeprom [ 36.057661][ T17] em28xx 1-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 36.066366][ T17] em28xx 1-1:255.0: board has no eeprom [ 36.066862][ T4470] em28xx 6-1:255.0: Registering V4L2 extension [ 36.080460][ T2625] usb 3-1: USB disconnect, device number 3 [ 36.097593][ T2625] em28xx 3-1:255.0: Disconnecting em28xx [ 36.128881][ T4470] em28xx 6-1:255.0: Config register raw data: 0xffffffed [ 36.136152][ T4470] em28xx 6-1:255.0: AC97 chip type couldn't be determined [ 36.143299][ T4470] em28xx 6-1:255.0: No AC97 audio processor [ 36.152493][ T4470] usb 6-1: Decoder not found [ 36.157436][ T4470] em28xx 6-1:255.0: failed to create media graph [ 36.173485][ T4470] em28xx 6-1:255.0: V4L2 device video0 deregistered [ 36.188796][ T4470] em28xx 6-1:255.0: Binding DVB extension [ 36.194697][ T4470] em28xx 6-1:255.0: no endpoint for DVB mode and transfer type 0 [ 36.202527][ T4470] em28xx 6-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 36.211035][ T4470] em28xx 6-1:255.0: Registering input extension [ 36.213450][ T17] em28xx 1-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 36.225388][ T17] em28xx 1-1:255.0: analog set to isoc mode. [ 36.231464][ T31] em28xx 2-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 36.239544][ T31] em28xx 2-1:255.0: analog set to isoc mode. [ 36.241139][ T4401] em28xx 4-1:255.0: Registering V4L2 extension [ 36.251775][ T17] usb 1-1: USB disconnect, device number 3 [ 36.261857][ T31] usb 2-1: USB disconnect, device number 3 [ 36.270053][ T17] em28xx 1-1:255.0: Disconnecting em28xx [ 36.277451][ T31] em28xx 2-1:255.0: Disconnecting em28xx [ 36.301992][ T4401] em28xx 4-1:255.0: Config register raw data: 0xffffffed [ 36.309237][ T4401] em28xx 4-1:255.0: AC97 chip type couldn't be determined [ 36.316415][ T4401] em28xx 4-1:255.0: No AC97 audio processor [ 36.327722][ T4401] usb 4-1: Decoder not found [ 36.332346][ T4401] em28xx 4-1:255.0: failed to create media graph [ 36.353772][ T4401] em28xx 4-1:255.0: V4L2 device video0 deregistered [ 36.362820][ T4401] em28xx 4-1:255.0: Binding DVB extension [ 36.375944][ T4401] em28xx 4-1:255.0: no endpoint for DVB mode and transfer type 0 [ 36.383770][ T4401] em28xx 4-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 36.392215][ T4401] em28xx 4-1:255.0: Registering input extension [ 36.398660][ T4404] em28xx 5-1:255.0: Registering V4L2 extension [ 36.417066][ T4404] em28xx 5-1:255.0: Config register raw data: 0xffffffed [ 36.424179][ T4404] em28xx 5-1:255.0: AC97 chip type couldn't be determined [ 36.431272][ T4404] em28xx 5-1:255.0: No AC97 audio processor [ 36.439808][ T4404] usb 5-1: Decoder not found [ 36.444532][ T4404] em28xx 5-1:255.0: failed to create media graph [ 36.455090][ T4404] em28xx 5-1:255.0: V4L2 device video0 deregistered [ 36.462688][ T4404] em28xx 5-1:255.0: Binding DVB extension [ 36.470725][ T4404] em28xx 5-1:255.0: no endpoint for DVB mode and transfer type 0 [ 36.478736][ T4404] em28xx 5-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 36.487328][ T4404] em28xx 5-1:255.0: Registering input extension [ 36.496019][ T4478] em28xx 3-1:255.0: Registering V4L2 extension [ 36.516679][ T4478] em28xx 3-1:255.0: Config register raw data: 0xffffffed [ 36.523897][ T4478] em28xx 3-1:255.0: AC97 chip type couldn't be determined [ 36.531275][ T4478] em28xx 3-1:255.0: No AC97 audio processor [ 36.539030][ T4478] usb 3-1: Decoder not found [ 36.543899][ T4478] em28xx 3-1:255.0: failed to create media graph [ 36.551063][ T4478] em28xx 3-1:255.0: V4L2 device video0 deregistered [ 36.559576][ T4478] em28xx 3-1:255.0: Binding DVB extension [ 36.566157][ T4478] em28xx 3-1:255.0: no endpoint for DVB mode and transfer type 0 [ 36.574338][ T4478] em28xx 3-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 36.582778][ T4478] em28xx 3-1:255.0: Registering input extension [ 36.589404][ T2625] em28xx 3-1:255.0: Closing input extension [ 36.595710][ T5] em28xx 6-1:255.0: Closing input extension [ 36.596772][ T2625] em28xx 3-1:255.0: Freeing device [ 36.621273][ T4396] em28xx 1-1:255.0: Registering V4L2 extension [ 36.629409][ T5] em28xx 6-1:255.0: Freeing device [ 36.646527][ T4396] em28xx 1-1:255.0: Config register raw data: 0xffffffed [ 36.653838][ T4396] em28xx 1-1:255.0: AC97 chip type couldn't be determined [ 36.660964][ T4396] em28xx 1-1:255.0: No AC97 audio processor [ 36.672717][ T4396] usb 1-1: Decoder not found [ 36.677578][ T4396] em28xx 1-1:255.0: failed to create media graph [ 36.687823][ T4396] em28xx 1-1:255.0: V4L2 device video0 deregistered [ 36.696725][ T4396] em28xx 1-1:255.0: Binding DVB extension [ 36.702486][ T4396] em28xx 1-1:255.0: no endpoint for DVB mode and transfer type 0 [ 36.710304][ T4396] em28xx 1-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 36.718943][ T4396] em28xx 1-1:255.0: Registering input extension [ 36.729581][ T4399] em28xx 2-1:255.0: Registering V4L2 extension [ 36.749239][ T4399] em28xx 2-1:255.0: Config register raw data: 0xffffffed [ 36.760938][ T4399] em28xx 2-1:255.0: AC97 chip type couldn't be determined [ 36.768098][ T4399] em28xx 2-1:255.0: No AC97 audio processor [ 36.775148][ T4399] usb 2-1: Decoder not found [ 36.779863][ T4399] em28xx 2-1:255.0: failed to create media graph [ 36.786305][ T4399] em28xx 2-1:255.0: V4L2 device video0 deregistered [ 36.794556][ T4399] em28xx 2-1:255.0: Binding DVB extension [ 36.800484][ T4399] em28xx 2-1:255.0: no endpoint for DVB mode and transfer type 0 [ 36.808591][ T4399] em28xx 2-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 36.817390][ T4399] em28xx 2-1:255.0: Registering input extension [ 36.825178][ T31] em28xx 2-1:255.0: Closing input extension [ 36.833924][ T31] em28xx 2-1:255.0: Freeing device [ 36.843842][ T2187] em28xx 4-1:255.0: Closing input extension [ 36.860836][ T7] em28xx 5-1:255.0: Closing input extension [ 36.869754][ T17] em28xx 1-1:255.0: Closing input extension [ 36.886306][ T17] em28xx 1-1:255.0: Freeing device [ 36.887343][ T7] em28xx 5-1:255.0: Freeing device [ 36.898423][ T2187] em28xx 4-1:255.0: Freeing device [ 36.993145][ T5] usb 6-1: new high-speed USB device number 4 using dummy_hcd [ 36.993170][ T2625] usb 3-1: new high-speed USB device number 4 using dummy_hcd [ 37.233034][ T31] usb 2-1: new high-speed USB device number 4 using dummy_hcd [ 37.263009][ T2187] usb 4-1: new high-speed USB device number 4 using dummy_hcd [ 37.273066][ T7] usb 5-1: new high-speed USB device number 4 using dummy_hcd [ 37.283415][ T17] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 37.353090][ T5] usb 6-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 37.362028][ T5] usb 6-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 37.372555][ T5] usb 6-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 37.383746][ T5] usb 6-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 37.392945][ T5] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.433008][ T2625] usb 3-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 37.441958][ T2625] usb 3-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 37.445388][ T5] em28xx 6-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 37.460087][ T5] em28xx 6-1:255.0: Video interface 0 found: isoc [ 37.466500][ T2625] usb 3-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 37.466529][ T2625] usb 3-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 37.466543][ T2625] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.555204][ T2625] em28xx 3-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 37.564520][ T2625] em28xx 3-1:255.0: Video interface 0 found: isoc [ 37.632964][ T31] usb 2-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 37.642172][ T31] usb 2-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 37.651542][ T31] usb 2-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 37.663341][ T31] usb 2-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 37.672362][ T31] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.672987][ T2187] usb 4-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 37.680471][ T17] usb 1-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 37.689235][ T2187] usb 4-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 37.689331][ T7] usb 5-1: config 255 has too many interfaces: 255, using maximum allowed: 32 [ 37.698185][ T17] usb 1-1: config 255 has 1 interface, different from the descriptor's value: 255 executing program [ 37.707479][ T17] usb 1-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 37.716301][ T7] usb 5-1: config 255 has 1 interface, different from the descriptor's value: 255 [ 37.731720][ T2187] usb 4-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 37.736797][ T17] usb 1-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 37.736813][ T17] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 executing program [ 37.778700][ T2187] usb 4-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 37.788952][ T2187] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.811622][ T7] usb 5-1: config 255 interface 0 altsetting 0 endpoint 0x82 has an invalid bInterval 0, changing to 7 [ 37.823087][ T7] usb 5-1: New USB device found, idVendor=2040, idProduct=6513, bcdDevice=7f.4f [ 37.832126][ T7] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 37.834918][ T17] em28xx 1-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 37.843459][ T5] em28xx 6-1:255.0: unknown em28xx chip ID (0) [ 37.852296][ T17] em28xx 1-1:255.0: Video interface 0 found: isoc [ 37.854407][ T31] em28xx 2-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 37.873823][ T31] em28xx 2-1:255.0: Video interface 0 found: isoc [ 37.893305][ T2625] em28xx 3-1:255.0: unknown em28xx chip ID (0) [ 37.945043][ T7] em28xx 5-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 37.955223][ T7] em28xx 5-1:255.0: Video interface 0 found: isoc [ 37.974890][ T2187] em28xx 4-1:255.0: New device @ 480 Mbps (2040:6513, interface 0, class 0) [ 37.984170][ T2187] em28xx 4-1:255.0: Video interface 0 found: isoc executing program executing program [ 38.102995][ T5] em28xx 6-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.111241][ T5] em28xx 6-1:255.0: board has no eeprom [ 38.123118][ T17] em28xx 1-1:255.0: unknown em28xx chip ID (0) executing program executing program [ 38.152874][ T2625] em28xx 3-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.161165][ T2625] em28xx 3-1:255.0: board has no eeprom [ 38.192700][ T7] em28xx 5-1:255.0: unknown em28xx chip ID (0) [ 38.203000][ T31] em28xx 2-1:255.0: unknown em28xx chip ID (0) [ 38.222784][ T2187] em28xx 4-1:255.0: unknown em28xx chip ID (0) [ 38.229200][ T5] em28xx 6-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 38.237274][ T5] em28xx 6-1:255.0: analog set to isoc mode. [ 38.252757][ T5] usb 6-1: USB disconnect, device number 4 [ 38.259221][ T5] em28xx 6-1:255.0: Disconnecting em28xx [ 38.270548][ T4404] em28xx 6-1:255.0: Registering V4L2 extension [ 38.282996][ T2625] em28xx 3-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 38.291109][ T2625] em28xx 3-1:255.0: analog set to isoc mode. [ 38.291262][ T4404] em28xx 6-1:255.0: Config register raw data: 0xffffffed [ 38.305853][ T4404] em28xx 6-1:255.0: AC97 chip type couldn't be determined [ 38.313003][ T4404] em28xx 6-1:255.0: No AC97 audio processor [ 38.328331][ T4404] usb 6-1: Decoder not found [ 38.331380][ T2625] usb 3-1: USB disconnect, device number 4 [ 38.333045][ T4404] em28xx 6-1:255.0: failed to create media graph [ 38.334228][ T4404] em28xx 6-1:255.0: V4L2 device video0 deregistered [ 38.341986][ T2625] em28xx 3-1:255.0: Disconnecting em28xx [ 38.359638][ T4404] em28xx 6-1:255.0: Binding DVB extension [ 38.373824][ T4404] em28xx 6-1:255.0: no endpoint for DVB mode and transfer type 0 [ 38.381664][ T4404] em28xx 6-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 38.382633][ T17] em28xx 1-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.391467][ T4404] em28xx 6-1:255.0: Registering input extension [ 38.399818][ T17] em28xx 1-1:255.0: board has no eeprom [ 38.429282][ T5] em28xx 6-1:255.0: Closing input extension [ 38.436267][ T4399] em28xx 3-1:255.0: Registering V4L2 extension [ 38.437618][ T5] em28xx 6-1:255.0: Freeing device [ 38.462632][ T31] em28xx 2-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.470993][ T31] em28xx 2-1:255.0: board has no eeprom [ 38.472621][ T7] em28xx 5-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.484885][ T7] em28xx 5-1:255.0: board has no eeprom [ 38.490596][ T2187] em28xx 4-1:255.0: reading from i2c device at 0xa0 failed (error=-5) [ 38.498843][ T2187] em28xx 4-1:255.0: board has no eeprom [ 38.505373][ T4399] em28xx 3-1:255.0: Config register raw data: 0xffffffed [ 38.512663][ T4399] em28xx 3-1:255.0: AC97 chip type couldn't be determined [ 38.519783][ T4399] em28xx 3-1:255.0: No AC97 audio processor [ 38.542705][ T17] em28xx 1-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 38.550850][ T17] em28xx 1-1:255.0: analog set to isoc mode. [ 38.561929][ T4399] usb 3-1: Decoder not found [ 38.567124][ T4399] em28xx 3-1:255.0: failed to create media graph [ 38.577706][ T4399] em28xx 3-1:255.0: V4L2 device video0 deregistered [ 38.590536][ T17] usb 1-1: USB disconnect, device number 4 [ 38.601184][ T17] em28xx 1-1:255.0: Disconnecting em28xx [ 38.609184][ T4399] em28xx 3-1:255.0: Binding DVB extension [ 38.609495][ T4803] ================================================================== [ 38.616388][ T4399] em28xx 3-1:255.0: no endpoint for DVB mode and transfer type 0 [ 38.623083][ T4803] BUG: KASAN: use-after-free in v4l2_fh_init+0x279/0x2c0 [ 38.623096][ T4803] Read of size 8 at addr ffff8881093ec8c0 by task v4l_id/4803 [ 38.623100][ T4803] [ 38.623113][ T4803] CPU: 0 PID: 4803 Comm: v4l_id Not tainted 5.10.0-rc7-syzkaller #0 [ 38.623128][ T4803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.630858][ T4399] em28xx 3-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 38.638298][ T4803] Call Trace: [ 38.638318][ T4803] dump_stack+0x107/0x163 [ 38.638330][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 38.638349][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 38.645826][ T4399] em28xx 3-1:255.0: Registering input extension [ 38.648106][ T4803] print_address_description.constprop.0.cold+0xae/0x4c8 [ 38.648125][ T4803] ? lock_downgrade+0x6d0/0x6d0 [ 38.661387][ T4396] em28xx 1-1:255.0: Registering V4L2 extension [ 38.666242][ T4803] ? mutex_lock_io_nested+0xf50/0xf50 [ 38.666256][ T4803] ? vprintk_func+0x93/0x140 [ 38.666270][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 38.666282][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 38.666303][ T4803] kasan_report.cold+0x1f/0x37 [ 38.690154][ T4396] em28xx 1-1:255.0: Config register raw data: 0xffffffed [ 38.692462][ T4803] ? memmove+0x30/0x60 [ 38.692477][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 38.692497][ T4803] v4l2_fh_init+0x279/0x2c0 [ 38.698749][ T4396] em28xx 1-1:255.0: AC97 chip type couldn't be determined [ 38.705838][ T4803] v4l2_fh_open+0x88/0xc0 [ 38.705854][ T4803] em28xx_v4l2_open+0x11c/0x570 [ 38.705865][ T4803] v4l2_open+0x21c/0x3f0 [ 38.705877][ T4803] ? v4l2_release+0x3b0/0x3b0 [ 38.705888][ T4803] chrdev_open+0x266/0x770 [ 38.705906][ T4803] ? cdev_device_add+0x210/0x210 [ 38.711894][ T4396] em28xx 1-1:255.0: No AC97 audio processor [ 38.718291][ T4803] ? security_file_open+0x205/0x4f0 [ 38.718307][ T4803] do_dentry_open+0x4b4/0x1090 [ 38.718325][ T4803] ? cdev_device_add+0x210/0x210 [ 38.730610][ T4396] usb 1-1: Decoder not found [ 38.733530][ T4803] ? may_open+0x1e4/0x400 [ 38.733544][ T4803] path_openat+0x1b9a/0x2730 [ 38.733558][ T4803] ? path_lookupat+0x830/0x830 [ 38.733573][ T4803] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 38.733585][ T4803] do_filp_open+0x17e/0x3c0 [ 38.733605][ T4803] ? may_open_dev+0xf0/0xf0 [ 38.738269][ T4396] em28xx 1-1:255.0: failed to create media graph [ 38.743098][ T4803] ? do_raw_spin_lock+0x120/0x2b0 [ 38.743110][ T4803] ? rwlock_bug.part.0+0x90/0x90 [ 38.743126][ T4803] ? _raw_spin_unlock+0x1a/0x30 [ 38.743149][ T4803] ? __alloc_fd+0x28d/0x600 [ 38.757286][ T4396] em28xx 1-1:255.0: V4L2 device video1 deregistered [ 38.760086][ T4803] do_sys_openat2+0x16d/0x420 [ 38.765750][ T4396] em28xx 1-1:255.0: Binding DVB extension [ 38.771667][ T4803] ? build_open_flags+0x650/0x650 [ 38.778364][ T4396] em28xx 1-1:255.0: no endpoint for DVB mode and transfer type 0 [ 38.780820][ T4803] __x64_sys_open+0x119/0x1c0 [ 38.785279][ T4396] em28xx 1-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 38.795479][ T4803] ? do_sys_open+0x140/0x140 [ 38.795493][ T4803] ? __secure_computing+0xb4/0x290 [ 38.795516][ T4803] do_syscall_64+0x2d/0x40 [ 38.800343][ T4396] em28xx 1-1:255.0: Registering input extension [ 38.806063][ T4803] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 38.806074][ T4803] RIP: 0033:0x7f0c9404b840 [ 38.806094][ T4803] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 38.816572][ T2625] em28xx 3-1:255.0: Closing input extension [ 38.817698][ T4803] RSP: 002b:00007ffd76cc3488 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 38.822748][ T17] em28xx 1-1:255.0: Closing input extension [ 38.829387][ T4803] RAX: ffffffffffffffda RBX: 00007ffd76cc35f8 RCX: 00007f0c9404b840 [ 38.829403][ T4803] RDX: 00007f0c94037ea0 RSI: 0000000000000000 RDI: 00007ffd76cc4f23 [ 38.843969][ T17] em28xx 1-1:255.0: Freeing device [ 38.848399][ T4803] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 39.032168][ T4803] R10: 0000000000000002 R11: 0000000000000246 R12: 00005568886a88d0 [ 39.040118][ T4803] R13: 00007ffd76cc35f0 R14: 0000000000000000 R15: 0000000000000000 [ 39.048068][ T4803] [ 39.050400][ T4803] The buggy address belongs to the page: [ 39.056069][ T4803] page:00000000578a5e66 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0 pfn:0x1093ec [ 39.066544][ T4803] flags: 0x200000000000000() [ 39.071119][ T4803] raw: 0200000000000000 ffff88823fffabd0 ffffea0004099408 0000000000000000 [ 39.079709][ T4803] raw: 0000000000000000 0000000000000002 00000000ffffff7f 0000000000000000 [ 39.088449][ T4803] page dumped because: kasan: bad access detected [ 39.094873][ T4803] [ 39.097196][ T4803] Memory state around the buggy address: [ 39.102808][ T4803] ffff8881093ec780: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 39.110866][ T4803] ffff8881093ec800: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 39.118907][ T4803] >ffff8881093ec880: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 39.127048][ T4803] ^ [ 39.133179][ T4803] ffff8881093ec900: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 39.141233][ T4803] ffff8881093ec980: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 39.149269][ T4803] ================================================================== [ 39.157324][ T4803] Disabling lock debugging due to kernel taint [ 39.163692][ T4803] Kernel panic - not syncing: panic_on_warn set ... [ 39.170293][ T4803] CPU: 0 PID: 4803 Comm: v4l_id Tainted: G B 5.10.0-rc7-syzkaller #0 [ 39.172476][ T31] em28xx 2-1:255.0: Identified as Hauppauge WinTV HVR 950 (card=16) [ 39.179650][ T4803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.179654][ T4803] Call Trace: [ 39.179671][ T4803] dump_stack+0x107/0x163 [ 39.179691][ T4803] ? v4l2_fh_init+0x1c0/0x2c0 [ 39.187682][ T31] em28xx 2-1:255.0: analog set to isoc mode. [ 39.197721][ T4803] panic+0x306/0x73d [ 39.197731][ T4803] ? __warn_printk+0xf3/0xf3 [ 39.197751][ T4803] ? asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 39.222613][ T31] usb 2-1: USB disconnect, device number 4 [ 39.224559][ T4803] ? trace_hardirqs_on+0x51/0x1a0 [ 39.224572][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 39.224590][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 39.231098][ T31] em28xx 2-1:255.0: Disconnecting em28xx [ 39.236508][ T4803] end_report+0x58/0x5e [ 39.236521][ T4803] kasan_report.cold+0xd/0x37 [ 39.236533][ T4803] ? memmove+0x30/0x60 [ 39.236544][ T4803] ? v4l2_fh_init+0x279/0x2c0 [ 39.236562][ T4803] v4l2_fh_init+0x279/0x2c0 [ 39.248022][ T4396] em28xx 2-1:255.0: Registering V4L2 extension [ 39.250897][ T4803] v4l2_fh_open+0x88/0xc0 [ 39.250912][ T4803] em28xx_v4l2_open+0x11c/0x570 [ 39.250929][ T4803] v4l2_open+0x21c/0x3f0 [ 39.267929][ T4396] em28xx 2-1:255.0: Config register raw data: 0xffffffed [ 39.269437][ T4803] ? v4l2_release+0x3b0/0x3b0 [ 39.274100][ T4396] em28xx 2-1:255.0: AC97 chip type couldn't be determined [ 39.278570][ T4803] chrdev_open+0x266/0x770 [ 39.284971][ T4396] em28xx 2-1:255.0: No AC97 audio processor [ 39.289257][ T4803] ? cdev_device_add+0x210/0x210 [ 39.297310][ T4396] usb 2-1: Decoder not found [ 39.298295][ T4803] ? security_file_open+0x205/0x4f0 [ 39.298307][ T4803] do_dentry_open+0x4b4/0x1090 [ 39.298317][ T4803] ? cdev_device_add+0x210/0x210 [ 39.298334][ T4803] ? may_open+0x1e4/0x400 [ 39.305361][ T4396] em28xx 2-1:255.0: failed to create media graph [ 39.310001][ T4803] path_openat+0x1b9a/0x2730 [ 39.321265][ T4396] em28xx 2-1:255.0: V4L2 device video1 deregistered [ 39.321478][ T4803] ? path_lookupat+0x830/0x830 [ 39.329235][ T4396] em28xx 2-1:255.0: Binding DVB extension [ 39.332259][ T4803] ? lockdep_hardirqs_on_prepare+0x3e0/0x3e0 [ 39.332273][ T4803] do_filp_open+0x17e/0x3c0 [ 39.332285][ T4803] ? may_open_dev+0xf0/0xf0 [ 39.332295][ T4803] ? do_raw_spin_lock+0x120/0x2b0 [ 39.332313][ T4803] ? rwlock_bug.part.0+0x90/0x90 [ 39.339087][ T4396] em28xx 2-1:255.0: no endpoint for DVB mode and transfer type 0 [ 39.342073][ T4803] ? _raw_spin_unlock+0x1a/0x30 [ 39.342085][ T4803] ? __alloc_fd+0x28d/0x600 [ 39.342103][ T4803] do_sys_openat2+0x16d/0x420 [ 39.346872][ T4396] em28xx 2-1:255.0: failed to pre-allocate USB transfer buffers for DVB. [ 39.351789][ T4803] ? build_open_flags+0x650/0x650 [ 39.356110][ T4396] em28xx 2-1:255.0: Registering input extension [ 39.362385][ T4803] __x64_sys_open+0x119/0x1c0 [ 39.362402][ T4803] ? do_sys_open+0x140/0x140 [ 39.370620][ T31] em28xx 2-1:255.0: Closing input extension [ 39.373529][ T4803] ? __secure_computing+0xb4/0x290 [ 39.373543][ T4803] do_syscall_64+0x2d/0x40 [ 39.373558][ T4803] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 39.373573][ T4803] RIP: 0033:0x7f0c9404b840 [ 39.383690][ T31] em28xx 2-1:255.0: Freeing device [ 39.384026][ T4803] Code: 73 01 c3 48 8b 0d 68 77 20 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 89 bb 20 00 00 75 10 b8 02 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 1e f6 ff ff 48 89 04 24 [ 39.511331][ T4803] RSP: 002b:00007ffd76cc3488 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 39.520947][ T4803] RAX: ffffffffffffffda RBX: 00007ffd76cc35f8 RCX: 00007f0c9404b840 [ 39.528924][ T4803] RDX: 00007f0c94037ea0 RSI: 0000000000000000 RDI: 00007ffd76cc4f23 [ 39.536880][ T4803] RBP: 0000000000000003 R08: 0000000000000000 R09: 0000000000000000 [ 39.544879][ T4803] R10: 0000000000000002 R11: 0000000000000246 R12: 00005568886a88d0 [ 39.552846][ T4803] R13: 00007ffd76cc35f0 R14: 0000000000000000 R15: 0000000000000000 [ 39.561781][ T4803] Kernel Offset: disabled [ 39.566113][ T4803] Rebooting in 86400 seconds..