[info] Using makefile-style concurrent boot in runlevel 2. [ 13.655758][ C1] random: crng init done [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 816.983485][ T94] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 817.003346][ T1807] usb 3-1: new high-speed USB device number 2 using dummy_hcd [ 817.011089][ T95] usb 6-1: new high-speed USB device number 2 using dummy_hcd [ 817.018690][ T78] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 817.026230][ T1810] usb 4-1: new high-speed USB device number 2 using dummy_hcd [ 817.033769][ T1809] usb 2-1: new high-speed USB device number 2 using dummy_hcd [ 817.073672][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 817.133484][ T78] usb 5-1: Using ep0 maxpacket: 32 [ 817.138772][ T95] usb 6-1: Using ep0 maxpacket: 32 [ 817.144020][ T1807] usb 3-1: Using ep0 maxpacket: 32 [ 817.149384][ T1810] usb 4-1: Using ep0 maxpacket: 32 [ 817.155124][ T1809] usb 2-1: Using ep0 maxpacket: 32 [ 817.194337][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 817.205661][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 817.215878][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 817.224972][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 817.240140][ T94] usb 1-1: config 0 descriptor?? [ 817.263758][ T1807] usb 3-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 817.263786][ T1798] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 817.275259][ T1807] usb 3-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 817.291760][ T1807] usb 3-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 817.300943][ T1807] usb 3-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 817.309064][ T78] usb 5-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 817.320232][ T78] usb 5-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 817.330356][ T78] usb 5-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 817.339682][ T78] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 817.348002][ T95] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 817.359525][ T95] usb 6-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 817.369597][ T95] usb 6-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 817.378837][ T95] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 817.387013][ T1810] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 817.398109][ T1810] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 817.411689][ T1810] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 817.420765][ T1810] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 817.428983][ T1809] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 817.440265][ T1809] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 817.451221][ T1809] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 817.460393][ T1809] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 817.470786][ T95] usb 6-1: config 0 descriptor?? [ 817.476578][ T78] usb 5-1: config 0 descriptor?? [ 817.482544][ T1809] usb 2-1: config 0 descriptor?? [ 817.489347][ T1807] usb 3-1: config 0 descriptor?? executing program [ 817.495153][ T1810] usb 4-1: config 0 descriptor?? [ 817.495428][ T1804] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 817.513406][ T1806] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 817.513489][ T1805] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 817.520352][ T1803] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 817.535105][ T1808] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 817.542050][ T94] usb 1-1: string descriptor 0 read error: -71 [ 817.579424][ T94] usb 1-1: USB disconnect, device number 2 [ 817.593732][ T1817] hwrng: no data available executing program executing program executing program executing program executing program [ 817.763418][ T78] usb 5-1: string descriptor 0 read error: -71 [ 817.773575][ T1807] usb 3-1: string descriptor 0 read error: -71 [ 817.784672][ T78] usb 5-1: USB disconnect, device number 2 [ 817.793481][ T1809] usb 2-1: string descriptor 0 read error: -71 [ 817.801319][ T1810] usb 4-1: string descriptor 0 read error: -71 [ 817.814344][ T1810] chaoskey 4-1:0.0: Unable to register with hwrng [ 817.823054][ T1809] chaoskey 2-1:0.0: Unable to register with hwrng [ 817.829832][ T95] usb 6-1: string descriptor 0 read error: -71 [ 817.837188][ T1807] usb 3-1: USB disconnect, device number 2 [ 817.845463][ T95] chaoskey 6-1:0.0: Unable to register with hwrng [ 817.860282][ T1809] usb 2-1: USB disconnect, device number 2 [ 817.866731][ T1810] usb 4-1: USB disconnect, device number 2 [ 817.875918][ T95] usb 6-1: USB disconnect, device number 2 [ 818.243398][ T1810] usb 4-1: new high-speed USB device number 3 using dummy_hcd [ 818.251257][ T95] usb 6-1: new high-speed USB device number 3 using dummy_hcd [ 818.259212][ T1809] usb 2-1: new high-speed USB device number 3 using dummy_hcd [ 818.333656][ T1810] usb 4-1: Using ep0 maxpacket: 32 [ 818.353499][ T95] usb 6-1: Using ep0 maxpacket: 32 [ 818.361377][ T1809] usb 2-1: Using ep0 maxpacket: 32 [ 818.453504][ T1810] usb 4-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 818.465129][ T1810] usb 4-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 818.476878][ T1810] usb 4-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 818.486188][ T1810] usb 4-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 818.494450][ T1809] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 818.505636][ T1809] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 818.516399][ T1809] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 818.525669][ T1809] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 818.533802][ T95] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 818.545687][ T95] usb 6-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 818.555751][ T95] usb 6-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 818.564957][ T95] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 818.574594][ T1810] usb 4-1: config 0 descriptor?? [ 818.581531][ T95] usb 6-1: config 0 descriptor?? [ 818.587542][ T1809] usb 2-1: config 0 descriptor?? [ 818.593404][ T1821] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 818.603459][ T1823] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 818.603465][ T1820] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program executing program executing program [ 818.853636][ T1810] usb 4-1: string descriptor 0 read error: -71 [ 818.863596][ T1809] usb 2-1: string descriptor 0 read error: -71 [ 818.869922][ T95] usb 6-1: string descriptor 0 read error: -71 [ 818.881909][ T1810] usb 4-1: USB disconnect, device number 3 [ 818.888070][ T1809] chaoskey 2-1:0.0: Unable to register with hwrng [ 818.895855][ T95] chaoskey 6-1:0.0: Unable to register with hwrng [ 818.905423][ T1809] usb 2-1: USB disconnect, device number 3 [ 818.911548][ T95] usb 6-1: USB disconnect, device number 3 [ 819.263346][ T1809] usb 2-1: new high-speed USB device number 4 using dummy_hcd [ 819.273474][ T95] usb 6-1: new high-speed USB device number 4 using dummy_hcd [ 819.353469][ T1809] usb 2-1: Using ep0 maxpacket: 32 [ 819.363497][ T95] usb 6-1: Using ep0 maxpacket: 32 [ 819.473472][ T1809] usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 819.485416][ T1809] usb 2-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 819.497426][ T1809] usb 2-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 819.506983][ T1809] usb 2-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 819.515178][ T95] usb 6-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 819.526850][ T95] usb 6-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 819.537076][ T95] usb 6-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 819.546176][ T95] usb 6-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 819.555566][ T1809] usb 2-1: config 0 descriptor?? [ 819.562392][ T95] usb 6-1: config 0 descriptor?? [ 819.573410][ T1830] raw-gadget gadget: fail, usb_ep_enable returned -22 [ 819.583405][ T1831] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program executing program [ 819.833399][ T1809] usb 2-1: string descriptor 0 read error: -71 [ 819.843454][ T95] usb 6-1: string descriptor 0 read error: -71 [ 819.854725][ T1809] usb 2-1: USB disconnect, device number 4 [ 819.874427][ T95] usb 6-1: USB disconnect, device number 4 executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 828.583323][ T94] usb 1-1: new high-speed USB device number 3 using dummy_hcd [ 828.673387][ T94] usb 1-1: Using ep0 maxpacket: 32 executing program [ 828.793429][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 828.804617][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 828.814677][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 828.823762][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 828.837152][ T94] usb 1-1: config 0 descriptor?? [ 828.853571][ T1845] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 829.113459][ T94] usb 1-1: string descriptor 0 read error: -71 [ 829.134255][ T94] usb 1-1: USB disconnect, device number 3 [ 829.153358][ T1850] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 840.103312][ T94] usb 1-1: new high-speed USB device number 4 using dummy_hcd [ 840.193412][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 840.313456][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 840.324602][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 840.335544][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 840.344680][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 840.354909][ T94] usb 1-1: config 0 descriptor?? [ 840.373381][ T1863] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 840.643421][ T94] usb 1-1: string descriptor 0 read error: -71 [ 840.664784][ T94] usb 1-1: USB disconnect, device number 4 [ 840.683376][ T1867] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 851.623362][ T94] usb 1-1: new high-speed USB device number 5 using dummy_hcd [ 851.713450][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 851.834039][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 851.845139][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 851.855861][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 851.865115][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 851.874794][ T94] usb 1-1: config 0 descriptor?? [ 851.893408][ T1880] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 852.163422][ T94] usb 1-1: string descriptor 0 read error: -71 [ 852.185191][ T94] usb 1-1: USB disconnect, device number 5 [ 852.213416][ T1882] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 863.143314][ T94] usb 1-1: new high-speed USB device number 6 using dummy_hcd [ 863.233473][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 863.353417][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 863.364640][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 863.374726][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 863.383891][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 863.393503][ T94] usb 1-1: config 0 descriptor?? [ 863.413378][ T1895] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 863.673582][ T94] usb 1-1: string descriptor 0 read error: -71 [ 863.694594][ T94] usb 1-1: USB disconnect, device number 6 [ 863.723619][ T1899] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 874.663328][ T94] usb 1-1: new high-speed USB device number 7 using dummy_hcd [ 874.753497][ T94] usb 1-1: Using ep0 maxpacket: 32 executing program executing program [ 874.883404][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 874.894577][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 874.904630][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 874.914022][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 874.926307][ T94] usb 1-1: config 0 descriptor?? [ 874.943435][ T1912] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 875.213404][ T94] usb 1-1: string descriptor 0 read error: -71 [ 875.234702][ T94] usb 1-1: USB disconnect, device number 7 [ 875.253364][ T1917] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 886.183353][ T94] usb 1-1: new high-speed USB device number 8 using dummy_hcd [ 886.273384][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 886.393493][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 886.404669][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 886.414821][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 886.423979][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 886.433348][ T94] usb 1-1: config 0 descriptor?? [ 886.453484][ T1930] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 886.713466][ T94] usb 1-1: string descriptor 0 read error: -71 [ 886.734627][ T94] usb 1-1: USB disconnect, device number 8 [ 886.753381][ T1932] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 897.703312][ T94] usb 1-1: new high-speed USB device number 9 using dummy_hcd [ 897.803386][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 897.923387][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 897.935083][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 897.945202][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 897.954304][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 897.963527][ T94] usb 1-1: config 0 descriptor?? [ 897.983420][ T1945] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 898.243469][ T94] usb 1-1: string descriptor 0 read error: -71 [ 898.264755][ T94] usb 1-1: USB disconnect, device number 9 [ 898.283374][ T1949] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 909.223311][ T94] usb 1-1: new high-speed USB device number 10 using dummy_hcd [ 909.313490][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 909.434004][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 909.445294][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 909.455381][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 909.464447][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 909.474071][ T94] usb 1-1: config 0 descriptor?? [ 909.493404][ T1962] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program executing program executing program [ 909.773424][ T94] usb 1-1: string descriptor 0 read error: -71 [ 909.794731][ T94] usb 1-1: USB disconnect, device number 10 [ 909.813403][ T1965] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 920.743327][ T94] usb 1-1: new high-speed USB device number 11 using dummy_hcd [ 920.833377][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 920.953410][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 920.964593][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 920.974658][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 920.984251][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 920.993682][ T94] usb 1-1: config 0 descriptor?? [ 921.013383][ T1978] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 921.273437][ T94] usb 1-1: string descriptor 0 read error: -71 [ 921.294686][ T94] usb 1-1: USB disconnect, device number 11 [ 921.313381][ T1982] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 932.263326][ T94] usb 1-1: new high-speed USB device number 12 using dummy_hcd [ 932.353397][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 932.474013][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 932.485107][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 932.495155][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 932.504259][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 932.513398][ T94] usb 1-1: config 0 descriptor?? [ 932.533391][ T1995] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program executing program executing program [ 932.793467][ T94] usb 1-1: string descriptor 0 read error: -71 [ 932.815075][ T94] usb 1-1: USB disconnect, device number 12 [ 932.833447][ T1999] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 943.783333][ T94] usb 1-1: new high-speed USB device number 13 using dummy_hcd executing program [ 943.873405][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 943.993838][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 944.005177][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 944.015277][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 944.024383][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 944.033594][ T94] usb 1-1: config 0 descriptor?? [ 944.053417][ T2010] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 944.313447][ T94] usb 1-1: string descriptor 0 read error: -71 [ 944.334702][ T94] usb 1-1: USB disconnect, device number 13 [ 944.353438][ T2015] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 955.313305][ T94] usb 1-1: new high-speed USB device number 14 using dummy_hcd [ 955.403688][ T94] usb 1-1: Using ep0 maxpacket: 32 [ 955.523918][ T94] usb 1-1: config 0 interface 0 altsetting 0 endpoint 0x8F has invalid maxpacket 1536, setting to 1024 [ 955.535214][ T94] usb 1-1: config 0 interface 0 altsetting 0 bulk endpoint 0x8F has invalid maxpacket 1024 [ 955.545293][ T94] usb 1-1: New USB device found, idVendor=1d50, idProduct=60c6, bcdDevice=c9.3a [ 955.554468][ T94] usb 1-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 955.563880][ T94] usb 1-1: config 0 descriptor?? [ 955.583389][ T2028] raw-gadget gadget: fail, usb_ep_enable returned -22 executing program [ 955.853417][ T94] usb 1-1: string descriptor 0 read error: -71 [ 955.874632][ T94] usb 1-1: USB disconnect, device number 14 [ 955.903487][ T2032] hwrng: no data available executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 963.913371][ T22] INFO: task kworker/1:1:78 blocked for more than 143 seconds. [ 963.921096][ T22] Not tainted 5.6.0-rc3-syzkaller #0 [ 963.926956][ T22] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 963.935661][ T22] kworker/1:1 D25376 78 2 0x80004000 [ 963.941996][ T22] Workqueue: usb_hub_wq hub_event [ 963.947211][ T22] Call Trace: [ 963.950504][ T22] ? __schedule+0x892/0x1d80 [ 963.955143][ T22] ? __sched_text_start+0x8/0x8 [ 963.960026][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 963.965344][ T22] schedule+0xcd/0x2b0 [ 963.969427][ T22] schedule_timeout+0x682/0xb20 [ 963.974331][ T22] ? find_held_lock+0x2d/0x110 [ 963.979115][ T22] ? usleep_range+0x160/0x160 [ 963.983829][ T22] ? mark_lock+0xbc/0x1160 [ 963.988281][ T22] ? do_raw_spin_lock+0x129/0x290 [ 963.993354][ T22] ? mark_held_locks+0x9f/0xe0 [ 963.998204][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 964.003474][ T22] wait_for_completion+0x26f/0x3c0 [ 964.008810][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 964.015381][ T22] ? wake_up_q+0x140/0x140 [ 964.019816][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.025408][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.030706][ T22] kthread_stop+0x17a/0x780 [ 964.035268][ T22] hwrng_unregister+0x24f/0x330 [ 964.040126][ T22] chaoskey_disconnect+0x216/0x290 [ 964.045288][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 964.050498][ T22] ? __pm_runtime_idle+0xd1/0x310 [ 964.055561][ T22] ? usb_autoresume_device+0x60/0x60 [ 964.060975][ T22] device_release_driver_internal+0x42f/0x500 [ 964.067082][ T22] bus_remove_device+0x2eb/0x5a0 [ 964.072026][ T22] device_del+0x481/0xd30 [ 964.076428][ T22] ? device_create_with_groups+0x120/0x120 [ 964.082253][ T22] ? usb_remove_ep_devs+0x3e/0x80 [ 964.087333][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 964.092695][ T22] usb_disable_device+0x23d/0x790 [ 964.097864][ T22] usb_disconnect+0x293/0x900 [ 964.103084][ T22] hub_event+0x1a1d/0x4300 [ 964.108423][ T22] ? hub_port_debounce+0x350/0x350 [ 964.113682][ T22] ? find_held_lock+0x2d/0x110 [ 964.118994][ T22] ? mark_held_locks+0xe0/0xe0 [ 964.124073][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.129626][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.134948][ T22] process_one_work+0x94b/0x1620 [ 964.139912][ T22] ? __wake_up_common+0x650/0x650 [ 964.145008][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 964.150539][ T22] worker_thread+0x7ab/0xe20 [ 964.155236][ T22] ? process_one_work+0x1620/0x1620 [ 964.160560][ T22] kthread+0x318/0x420 [ 964.164858][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 964.171029][ T22] ret_from_fork+0x24/0x30 [ 964.178516][ T22] INFO: task kworker/1:2:95 blocked for more than 143 seconds. [ 964.186751][ T22] Not tainted 5.6.0-rc3-syzkaller #0 [ 964.192731][ T22] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 964.202131][ T22] kworker/1:2 D25960 95 2 0x80004000 [ 964.208616][ T22] Workqueue: usb_hub_wq hub_event [ 964.213707][ T22] Call Trace: [ 964.217019][ T22] ? __schedule+0x892/0x1d80 [ 964.221713][ T22] ? __sched_text_start+0x8/0x8 [ 964.227013][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 964.232342][ T22] schedule+0xcd/0x2b0 [ 964.236465][ T22] schedule_timeout+0x682/0xb20 [ 964.241941][ T22] ? find_held_lock+0x2d/0x110 [ 964.246762][ T22] ? usleep_range+0x160/0x160 [ 964.251681][ T22] ? mark_lock+0xbc/0x1160 [ 964.256428][ T22] ? do_raw_spin_lock+0x129/0x290 [ 964.261550][ T22] ? mark_held_locks+0x9f/0xe0 [ 964.266694][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 964.271933][ T22] wait_for_completion+0x26f/0x3c0 [ 964.277442][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 964.284617][ T22] ? wake_up_q+0x140/0x140 [ 964.289228][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.295319][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.300884][ T22] kthread_stop+0x17a/0x780 [ 964.306245][ T22] hwrng_unregister+0x24f/0x330 [ 964.311589][ T22] chaoskey_disconnect+0x216/0x290 [ 964.317346][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 964.323897][ T22] ? __pm_runtime_idle+0xd1/0x310 [ 964.329595][ T22] ? usb_autoresume_device+0x60/0x60 [ 964.335801][ T22] device_release_driver_internal+0x42f/0x500 [ 964.342221][ T22] bus_remove_device+0x2eb/0x5a0 [ 964.347263][ T22] device_del+0x481/0xd30 [ 964.351778][ T22] ? device_create_with_groups+0x120/0x120 [ 964.357639][ T22] ? usb_remove_ep_devs+0x3e/0x80 [ 964.362794][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 964.368131][ T22] usb_disable_device+0x23d/0x790 [ 964.373186][ T22] usb_disconnect+0x293/0x900 [ 964.378005][ T22] hub_event+0x1a1d/0x4300 [ 964.382481][ T22] ? hub_port_debounce+0x350/0x350 [ 964.387629][ T22] ? find_held_lock+0x2d/0x110 [ 964.392523][ T22] ? mark_held_locks+0xe0/0xe0 [ 964.397481][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.403150][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.408476][ T22] process_one_work+0x94b/0x1620 [ 964.413512][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 964.418881][ T22] ? do_raw_spin_lock+0x129/0x290 [ 964.424095][ T22] worker_thread+0x7ab/0xe20 [ 964.428710][ T22] ? process_one_work+0x1620/0x1620 [ 964.433950][ T22] kthread+0x318/0x420 [ 964.438048][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 964.443466][ T22] ret_from_fork+0x24/0x30 [ 964.447915][ T22] INFO: task kworker/1:0:1807 blocked for more than 143 seconds. [ 964.455667][ T22] Not tainted 5.6.0-rc3-syzkaller #0 [ 964.461476][ T22] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 964.470186][ T22] kworker/1:0 D25960 1807 2 0x80004000 [ 964.476678][ T22] Workqueue: usb_hub_wq hub_event [ 964.482298][ T22] Call Trace: [ 964.485643][ T22] ? __schedule+0x892/0x1d80 [ 964.490267][ T22] ? __sched_text_start+0x8/0x8 [ 964.495414][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 964.500706][ T22] schedule+0xcd/0x2b0 [ 964.504895][ T22] schedule_timeout+0x682/0xb20 [ 964.509850][ T22] ? find_held_lock+0x2d/0x110 [ 964.514673][ T22] ? usleep_range+0x160/0x160 [ 964.519354][ T22] ? mark_lock+0xbc/0x1160 [ 964.523964][ T22] ? do_raw_spin_lock+0x129/0x290 [ 964.528998][ T22] ? mark_held_locks+0x9f/0xe0 [ 964.533812][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 964.539023][ T22] wait_for_completion+0x26f/0x3c0 [ 964.544212][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 964.550721][ T22] ? wake_up_q+0x140/0x140 [ 964.555208][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.560762][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.566112][ T22] kthread_stop+0x17a/0x780 [ 964.570980][ T22] hwrng_unregister+0x24f/0x330 [ 964.575879][ T22] chaoskey_disconnect+0x216/0x290 [ 964.580991][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 964.586293][ T22] ? __pm_runtime_idle+0xd1/0x310 [ 964.591541][ T22] ? usb_autoresume_device+0x60/0x60 [ 964.596884][ T22] device_release_driver_internal+0x42f/0x500 [ 964.602969][ T22] bus_remove_device+0x2eb/0x5a0 [ 964.607969][ T22] device_del+0x481/0xd30 [ 964.612362][ T22] ? device_create_with_groups+0x120/0x120 [ 964.618266][ T22] ? usb_remove_ep_devs+0x3e/0x80 [ 964.623344][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 964.628639][ T22] usb_disable_device+0x23d/0x790 [ 964.633730][ T22] usb_disconnect+0x293/0x900 [ 964.638407][ T22] hub_event+0x1a1d/0x4300 [ 964.642860][ T22] ? hub_port_debounce+0x350/0x350 [ 964.648069][ T22] ? find_held_lock+0x2d/0x110 [ 964.652877][ T22] ? mark_held_locks+0xe0/0xe0 [ 964.657696][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.663289][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.668594][ T22] process_one_work+0x94b/0x1620 [ 964.673578][ T22] ? __wake_up_common+0x650/0x650 [ 964.678617][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 964.684034][ T22] worker_thread+0x7ab/0xe20 [ 964.688632][ T22] ? process_one_work+0x1620/0x1620 [ 964.693886][ T22] kthread+0x318/0x420 [ 964.697960][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 964.703380][ T22] ret_from_fork+0x24/0x30 [ 964.707851][ T22] INFO: task kworker/1:3:1809 blocked for more than 144 seconds. [ 964.715745][ T22] Not tainted 5.6.0-rc3-syzkaller #0 [ 964.721552][ T22] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 964.730394][ T22] kworker/1:3 D25624 1809 2 0x80004000 [ 964.736827][ T22] Workqueue: usb_hub_wq hub_event [ 964.741847][ T22] Call Trace: [ 964.745290][ T22] ? __schedule+0x892/0x1d80 [ 964.751027][ T22] ? __sched_text_start+0x8/0x8 [ 964.755939][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 964.761229][ T22] schedule+0xcd/0x2b0 [ 964.765346][ T22] schedule_timeout+0x682/0xb20 [ 964.770214][ T22] ? find_held_lock+0x2d/0x110 [ 964.775036][ T22] ? usleep_range+0x160/0x160 [ 964.779713][ T22] ? mark_lock+0xbc/0x1160 [ 964.784158][ T22] ? do_raw_spin_lock+0x129/0x290 [ 964.789300][ T22] ? mark_held_locks+0x9f/0xe0 [ 964.794129][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 964.799555][ T22] wait_for_completion+0x26f/0x3c0 [ 964.804822][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 964.811333][ T22] ? wake_up_q+0x140/0x140 executing program executing program [ 964.815885][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.821444][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.826887][ T22] kthread_stop+0x17a/0x780 [ 964.831574][ T22] hwrng_unregister+0x24f/0x330 [ 964.836478][ T22] chaoskey_disconnect+0x216/0x290 [ 964.841606][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 964.846884][ T22] ? __pm_runtime_idle+0xd1/0x310 [ 964.852065][ T22] ? usb_autoresume_device+0x60/0x60 [ 964.857419][ T22] device_release_driver_internal+0x42f/0x500 [ 964.863538][ T22] bus_remove_device+0x2eb/0x5a0 [ 964.868637][ T22] device_del+0x481/0xd30 [ 964.872984][ T22] ? device_create_with_groups+0x120/0x120 [ 964.878847][ T22] ? usb_remove_ep_devs+0x3e/0x80 [ 964.883911][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 964.889194][ T22] usb_disable_device+0x23d/0x790 [ 964.894283][ T22] usb_disconnect+0x293/0x900 [ 964.898964][ T22] hub_event+0x1a1d/0x4300 [ 964.903478][ T22] ? hub_port_debounce+0x350/0x350 [ 964.908593][ T22] ? find_held_lock+0x2d/0x110 [ 964.913472][ T22] ? mark_held_locks+0xe0/0xe0 [ 964.918249][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 964.923889][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 964.929195][ T22] process_one_work+0x94b/0x1620 [ 964.934280][ T22] ? __wake_up_common+0x650/0x650 [ 964.939399][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 964.944898][ T22] worker_thread+0x7ab/0xe20 [ 964.949497][ T22] ? process_one_work+0x1620/0x1620 [ 964.954747][ T22] kthread+0x318/0x420 [ 964.958821][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 964.964239][ T22] ret_from_fork+0x24/0x30 [ 964.968708][ T22] INFO: task kworker/1:4:1810 blocked for more than 144 seconds. [ 964.976595][ T22] Not tainted 5.6.0-rc3-syzkaller #0 [ 964.982392][ T22] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 964.991142][ T22] kworker/1:4 D25624 1810 2 0x80004000 [ 964.997573][ T22] Workqueue: usb_hub_wq hub_event [ 965.002601][ T22] Call Trace: [ 965.006000][ T22] ? __schedule+0x892/0x1d80 [ 965.010603][ T22] ? __sched_text_start+0x8/0x8 [ 965.015504][ T22] ? lockdep_hardirqs_on+0x382/0x580 [ 965.020858][ T22] schedule+0xcd/0x2b0 [ 965.024987][ T22] schedule_timeout+0x682/0xb20 [ 965.029895][ T22] ? find_held_lock+0x2d/0x110 [ 965.034893][ T22] ? usleep_range+0x160/0x160 [ 965.039697][ T22] ? mark_lock+0xbc/0x1160 [ 965.044172][ T22] ? do_raw_spin_lock+0x129/0x290 [ 965.049333][ T22] ? mark_held_locks+0x9f/0xe0 [ 965.054148][ T22] ? _raw_spin_unlock_irq+0x1f/0x30 [ 965.059448][ T22] wait_for_completion+0x26f/0x3c0 [ 965.064608][ T22] ? wait_for_completion_interruptible+0x420/0x420 [ 965.071116][ T22] ? wake_up_q+0x140/0x140 [ 965.075636][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 965.081249][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 965.086595][ T22] kthread_stop+0x17a/0x780 [ 965.091128][ T22] hwrng_unregister+0x24f/0x330 [ 965.096040][ T22] chaoskey_disconnect+0x216/0x290 [ 965.101186][ T22] usb_unbind_interface+0x1bd/0x8a0 [ 965.106424][ T22] ? __pm_runtime_idle+0xd1/0x310 [ 965.111674][ T22] ? usb_autoresume_device+0x60/0x60 [ 965.117006][ T22] device_release_driver_internal+0x42f/0x500 [ 965.123087][ T22] bus_remove_device+0x2eb/0x5a0 [ 965.128187][ T22] device_del+0x481/0xd30 [ 965.132531][ T22] ? device_create_with_groups+0x120/0x120 [ 965.138387][ T22] ? usb_remove_ep_devs+0x3e/0x80 [ 965.143566][ T22] ? remove_intf_ep_devs+0x13f/0x1d0 [ 965.148899][ T22] usb_disable_device+0x23d/0x790 [ 965.153972][ T22] usb_disconnect+0x293/0x900 [ 965.158690][ T22] hub_event+0x1a1d/0x4300 [ 965.163099][ T22] ? hub_port_debounce+0x350/0x350 [ 965.168250][ T22] ? find_held_lock+0x2d/0x110 [ 965.173140][ T22] ? mark_held_locks+0xe0/0xe0 [ 965.177950][ T22] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 965.183801][ T22] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 965.189099][ T22] process_one_work+0x94b/0x1620 [ 965.194111][ T22] ? __wake_up_common+0x650/0x650 [ 965.199144][ T22] ? pwq_dec_nr_in_flight+0x310/0x310 [ 965.204563][ T22] worker_thread+0x7ab/0xe20 [ 965.209249][ T22] ? process_one_work+0x1620/0x1620 [ 965.214507][ T22] kthread+0x318/0x420 [ 965.218594][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 965.224022][ T22] ret_from_fork+0x24/0x30 [ 965.228444][ T22] [ 965.228444][ T22] Showing all locks held in the system: [ 965.236248][ T22] 1 lock held by khungtaskd/22: [ 965.241108][ T22] #0: ffffffff87109020 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x264 [ 965.250761][ T22] 5 locks held by kworker/1:1/78: [ 965.255900][ T22] #0: ffff8881d8904d28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x82a/0x1620 [ 965.266094][ T22] #1: ffff8881d8ed7dd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85e/0x1620 [ 965.276882][ T22] #2: ffff8881d4d6d200 (&dev->mutex){....}, at: hub_event+0x1be/0x4300 [ 965.285258][ T22] #3: ffff8881c54ac200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x900 [ 965.293916][ T22] #4: ffff8881cd508190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 965.304015][ T22] 5 locks held by kworker/0:2/94: [ 965.309035][ T22] #0: ffff8881d8904d28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x82a/0x1620 [ 965.319252][ T22] #1: ffff8881d5cbfdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85e/0x1620 [ 965.330176][ T22] #2: ffff8881d4ca1200 (&dev->mutex){....}, at: hub_event+0x1be/0x4300 [ 965.338670][ T22] #3: ffff8881c9d88200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x900 [ 965.347336][ T22] #4: ffff8881c9d8f190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 965.357606][ T22] 5 locks held by kworker/1:2/95: [ 965.362630][ T22] #0: ffff8881d8904d28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x82a/0x1620 [ 965.372830][ T22] #1: ffff8881d5f6fdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85e/0x1620 [ 965.383565][ T22] #2: ffff8881d4d8c200 (&dev->mutex){....}, at: hub_event+0x1be/0x4300 [ 965.392152][ T22] #3: ffff8881ccff4200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x900 [ 965.400802][ T22] #4: ffff8881ccff6190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 965.410871][ T22] 1 lock held by rsyslogd/1674: [ 965.415752][ T22] 2 locks held by getty/1764: [ 965.420423][ T22] #0: ffff8881cf67f090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.429704][ T22] #1: ffffc900004512e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.439479][ T22] 2 locks held by getty/1765: [ 965.444188][ T22] #0: ffff8881d1acd090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.453445][ T22] #1: ffffc900004552e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.463069][ T22] 2 locks held by getty/1766: [ 965.467779][ T22] #0: ffff8881cf29a090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.477150][ T22] #1: ffffc9000045d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.486755][ T22] 2 locks held by getty/1767: [ 965.491467][ T22] #0: ffff8881cecd5090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.500724][ T22] #1: ffffc900004752e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.510484][ T22] 2 locks held by getty/1768: [ 965.515213][ T22] #0: ffff8881cf29f090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.524544][ T22] #1: ffffc9000046d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.534185][ T22] 2 locks held by getty/1769: [ 965.538884][ T22] #0: ffff8881cf175090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.548138][ T22] #1: ffffc900004652e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.557854][ T22] 2 locks held by getty/1770: [ 965.563044][ T22] #0: ffff8881cf678090 (&tty->ldisc_sem){++++}, at: tty_ldisc_ref_wait+0x22/0x80 [ 965.572293][ T22] #1: ffffc9000043d2e0 (&ldata->atomic_read_lock){+.+.}, at: n_tty_read+0x21d/0x1b30 [ 965.581897][ T22] 5 locks held by kworker/1:0/1807: [ 965.587232][ T22] #0: ffff8881d8904d28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x82a/0x1620 [ 965.597560][ T22] #1: ffff8881cd5bfdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85e/0x1620 [ 965.608354][ T22] #2: ffff8881d4cdf200 (&dev->mutex){....}, at: hub_event+0x1be/0x4300 [ 965.616748][ T22] #3: ffff8881c54ad200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x900 [ 965.625431][ T22] #4: ffff8881cd50c190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 965.635468][ T22] 5 locks held by kworker/1:3/1809: [ 965.640653][ T22] #0: ffff8881d8904d28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x82a/0x1620 [ 965.650873][ T22] #1: ffff8881cd54fdd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85e/0x1620 [ 965.661720][ T22] #2: ffff8881d4cd8200 (&dev->mutex){....}, at: hub_event+0x1be/0x4300 [ 965.670117][ T22] #3: ffff8881ccff3200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x900 [ 965.678888][ T22] #4: ffff8881ccff5190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 965.688950][ T22] 5 locks held by kworker/1:4/1810: [ 965.694316][ T22] #0: ffff8881d8904d28 ((wq_completion)usb_hub_wq){+.+.}, at: process_one_work+0x82a/0x1620 [ 965.705402][ T22] #1: ffff8881cd4a7dd0 ((work_completion)(&hub->events)){+.+.}, at: process_one_work+0x85e/0x1620 [ 965.716669][ T22] #2: ffff8881d4d06200 (&dev->mutex){....}, at: hub_event+0x1be/0x4300 [ 965.725062][ T22] #3: ffff8881cd1b4200 (&dev->mutex){....}, at: usb_disconnect+0x91/0x900 [ 965.733761][ T22] #4: ffff8881cd1b7190 (&dev->mutex){....}, at: device_release_driver_internal+0x23/0x500 [ 965.744079][ T22] [ 965.746417][ T22] ============================================= [ 965.746417][ T22] [ 965.754890][ T22] NMI backtrace for cpu 1 [ 965.759275][ T22] CPU: 1 PID: 22 Comm: khungtaskd Not tainted 5.6.0-rc3-syzkaller #0 executing program [ 965.767459][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 965.777620][ T22] Call Trace: [ 965.780910][ T22] dump_stack+0xef/0x16e [ 965.785178][ T22] ? irq_force_complete_move.cold+0x43/0x47 [ 965.791070][ T22] nmi_cpu_backtrace.cold+0x70/0xb1 [ 965.796326][ T22] ? lapic_can_unplug_cpu.cold+0x3b/0x3b [ 965.803019][ T22] nmi_trigger_cpumask_backtrace+0x1db/0x207 [ 965.809434][ T22] watchdog+0xa99/0xfd0 [ 965.813870][ T22] ? reset_hung_task_detector+0x30/0x30 [ 965.819548][ T22] kthread+0x318/0x420 [ 965.823607][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 965.828987][ T22] ret_from_fork+0x24/0x30 [ 965.833508][ T22] Sending NMI from CPU 1 to CPUs 0: [ 965.839345][ C0] NMI backtrace for cpu 0 [ 965.839350][ C0] CPU: 0 PID: 1801 Comm: syz-executor108 Not tainted 5.6.0-rc3-syzkaller #0 [ 965.839355][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 965.839358][ C0] RIP: 0010:rcu_lockdep_current_cpu_online+0x8d/0xd0 [ 965.839367][ C0] Code: 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 3b 48 8d 7d 68 48 8b 5b 20 48 b8 00 00 00 00 00 fc ff df 48 89 fa <48> c1 ea 03 80 3c 02 00 75 23 48 8b 45 68 48 85 c3 0f 95 c0 65 ff [ 965.839370][ C0] RSP: 0018:ffff8881db209ab0 EFLAGS: 00000046 [ 965.839376][ C0] RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff812d3a1c [ 965.839380][ C0] RDX: ffffffff871101e8 RSI: 0000000000000004 RDI: ffffffff871101e8 [ 965.839384][ C0] RBP: ffffffff87110180 R08: ffff8881cf98cb9c R09: ffffed103b646a84 [ 965.839392][ C0] R10: ffffed103b646a83 R11: ffff8881db23541b R12: ffff8881cf98cbb8 [ 965.839396][ C0] R13: 000000000000b8c1 R14: 000000000000b8c1 R15: 0000000000000000 [ 965.839401][ C0] FS: 00000000019d7880(0000) GS:ffff8881db200000(0000) knlGS:0000000000000000 [ 965.839404][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 965.839408][ C0] CR2: 00007f10294c0000 CR3: 00000001ce374000 CR4: 00000000001406f0 [ 965.839412][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 965.839416][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 965.839418][ C0] Call Trace: [ 965.839420][ C0] [ 965.839422][ C0] rcu_read_lock_held_common+0xcb/0x170 [ 965.839425][ C0] rcu_read_lock_sched_held+0x5a/0xd0 [ 965.839428][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 965.839431][ C0] ? find_held_lock+0x2d/0x110 [ 965.839433][ C0] __update_load_avg_se+0x6f4/0xc00 [ 965.839436][ C0] update_load_avg+0xe30/0x1b60 [ 965.839438][ C0] ? update_curr+0x39c/0x830 [ 965.839441][ C0] enqueue_task_fair+0x23b/0x23a0 [ 965.839443][ C0] activate_task+0xfb/0x320 [ 965.839446][ C0] ttwu_do_activate+0xca/0x130 [ 965.839448][ C0] try_to_wake_up+0xa86/0x1690 [ 965.839451][ C0] ? set_cpus_allowed_ptr+0x10/0x10 [ 965.839454][ C0] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 965.839457][ C0] ? rcu_read_lock_bh_held+0xb0/0xb0 [ 965.839459][ C0] hrtimer_wakeup+0x43/0x60 [ 965.839462][ C0] __hrtimer_run_queues+0x32c/0xd20 [ 965.839465][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 965.839468][ C0] ? hrtimer_init+0x2e0/0x2e0 [ 965.839471][ C0] ? ktime_get_update_offsets_now+0x24c/0x320 [ 965.839474][ C0] hrtimer_interrupt+0x2e8/0x730 [ 965.839481][ C0] smp_apic_timer_interrupt+0xfe/0x540 [ 965.839484][ C0] apic_timer_interrupt+0xf/0x20 [ 965.839486][ C0] [ 965.839489][ C0] RIP: 0010:_raw_spin_unlock_irq+0x27/0x30 [ 965.839498][ C0] Code: 44 00 00 55 48 8b 74 24 08 48 89 fd 48 8d 7f 18 e8 8e 3f 97 fb 48 89 ef e8 56 21 98 fb e8 b1 a6 b5 fb fb 65 ff 0d 81 10 73 7a <5d> c3 0f 1f 80 00 00 00 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 [ 965.839500][ C0] RSP: 0018:ffff8881c6107b38 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 [ 965.839507][ C0] RAX: 0000000000000007 RBX: ffff8881cf98e200 RCX: 0000000000000000 [ 965.839511][ C0] RDX: 0000000000000000 RSI: 0000000000000006 RDI: ffff8881cf98ea4c [ 965.839515][ C0] RBP: ffff8881db234600 R08: ffff8881cf98e200 R09: 0000000000000000 [ 965.839519][ C0] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8881db234600 [ 965.839523][ C0] R13: ffff8881cfa34980 R14: 0000000000000000 R15: 0000000000000001 [ 965.839526][ C0] ? _raw_spin_unlock_irq+0x1f/0x30 [ 965.839528][ C0] finish_task_switch+0x11d/0x5d0 [ 965.839531][ C0] ? finish_task_switch+0xef/0x5d0 [ 965.839534][ C0] ? __switch_to+0x5bd/0xe90 [ 965.839536][ C0] __schedule+0x89a/0x1d80 [ 965.839539][ C0] ? __sched_text_start+0x8/0x8 [ 965.839541][ C0] ? enqueue_hrtimer+0x3e0/0x3e0 [ 965.839544][ C0] ? lockdep_hardirqs_on+0x382/0x580 [ 965.839546][ C0] schedule+0xcd/0x2b0 [ 965.839549][ C0] do_nanosleep+0x21f/0x650 [ 965.839552][ C0] ? schedule_timeout_idle+0x80/0x80 [ 965.839554][ C0] ? memset+0x20/0x40 [ 965.839557][ C0] ? __hrtimer_init+0x134/0x260 [ 965.839559][ C0] hrtimer_nanosleep+0x1df/0x3a0 [ 965.839562][ C0] ? nanosleep_copyout+0x100/0x100 [ 965.839565][ C0] ? _copy_from_user+0x123/0x190 [ 965.839568][ C0] ? hrtimer_init_sleeper_on_stack+0x90/0x90 [ 965.839571][ C0] ? put_old_itimerspec32+0x1d0/0x1d0 [ 965.839574][ C0] __x64_sys_nanosleep+0x1dc/0x260 [ 965.839577][ C0] ? hrtimer_nanosleep+0x3a0/0x3a0 [ 965.839580][ C0] ? __ia32_sys_clock_settime+0x260/0x260 [ 965.839583][ C0] ? trace_hardirqs_off_caller+0x55/0x200 [ 965.839585][ C0] do_syscall_64+0xb6/0x5a0 [ 965.839588][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 965.839591][ C0] RIP: 0033:0x443e40 [ 965.839599][ C0] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d f1 5a 29 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 74 e4 fb ff c3 48 83 ec 08 e8 da 41 00 00 [ 965.839602][ C0] RSP: 002b:00007ffcf1305778 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 965.839609][ C0] RAX: ffffffffffffffda RBX: 00000000000007f8 RCX: 0000000000443e40 [ 965.839613][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffcf1305780 [ 965.839617][ C0] RBP: 00000000000eb0be R08: 0000000000000709 R09: 00000000019d7880 [ 965.839620][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000402740 [ 965.839624][ C0] R13: 00000000004027d0 R14: 0000000000000000 R15: 0000000000000000 [ 965.839719][ T22] Kernel panic - not syncing: hung_task: blocked tasks [ 966.372665][ T22] CPU: 1 PID: 22 Comm: khungtaskd Not tainted 5.6.0-rc3-syzkaller #0 [ 966.380731][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 966.390777][ T22] Call Trace: [ 966.394054][ T22] dump_stack+0xef/0x16e [ 966.398297][ T22] panic+0x2aa/0x6e1 [ 966.402177][ T22] ? add_taint.cold+0x16/0x16 [ 966.406852][ T22] ? cpumask_next+0x3c/0x40 [ 966.411380][ T22] ? printk_safe_flush+0xd9/0x120 [ 966.416436][ T22] ? watchdog+0xa99/0xfd0 [ 966.420770][ T22] ? nmi_trigger_cpumask_backtrace+0x1b3/0x207 [ 966.426919][ T22] watchdog+0xaaa/0xfd0 [ 966.431077][ T22] ? reset_hung_task_detector+0x30/0x30 [ 966.436622][ T22] kthread+0x318/0x420 [ 966.440683][ T22] ? kthread_create_on_node+0xf0/0xf0 [ 966.446040][ T22] ret_from_fork+0x24/0x30 [ 966.451398][ T22] Kernel Offset: disabled [ 966.455781][ T22] Rebooting in 86400 seconds..