[ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.127' (ECDSA) to the list of known hosts. 2020/08/01 06:42:36 parsed 1 programs 2020/08/01 06:42:36 executed programs: 0 syzkaller login: [ 688.926633][ T6859] IPVS: ftp: loaded support on port[0] = 21 [ 689.036946][ T6859] chnl_net:caif_netlink_parms(): no params data found [ 689.090435][ T6859] bridge0: port 1(bridge_slave_0) entered blocking state [ 689.097758][ T6859] bridge0: port 1(bridge_slave_0) entered disabled state [ 689.105390][ T6859] device bridge_slave_0 entered promiscuous mode [ 689.115044][ T6859] bridge0: port 2(bridge_slave_1) entered blocking state [ 689.122575][ T6859] bridge0: port 2(bridge_slave_1) entered disabled state [ 689.130629][ T6859] device bridge_slave_1 entered promiscuous mode [ 689.152013][ T6859] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 689.163063][ T6859] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 689.188101][ T6859] team0: Port device team_slave_0 added [ 689.195271][ T6859] team0: Port device team_slave_1 added [ 689.213725][ T6859] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 689.220736][ T6859] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 689.247833][ T6859] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 689.261139][ T6859] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 689.268620][ T6859] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 689.294991][ T6859] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 689.359075][ T6859] device hsr_slave_0 entered promiscuous mode [ 689.436047][ T6859] device hsr_slave_1 entered promiscuous mode [ 689.574613][ T6859] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 689.628783][ T6859] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 689.718388][ T6859] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 689.757747][ T6859] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 689.811884][ T6859] bridge0: port 2(bridge_slave_1) entered blocking state [ 689.819050][ T6859] bridge0: port 2(bridge_slave_1) entered forwarding state [ 689.826792][ T6859] bridge0: port 1(bridge_slave_0) entered blocking state [ 689.833846][ T6859] bridge0: port 1(bridge_slave_0) entered forwarding state [ 689.879801][ T6859] 8021q: adding VLAN 0 to HW filter on device bond0 [ 689.892788][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 689.903626][ T3899] bridge0: port 1(bridge_slave_0) entered disabled state [ 689.912026][ T3899] bridge0: port 2(bridge_slave_1) entered disabled state [ 689.920664][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 689.933692][ T6859] 8021q: adding VLAN 0 to HW filter on device team0 [ 689.944879][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 689.953835][ T6922] bridge0: port 1(bridge_slave_0) entered blocking state [ 689.960977][ T6922] bridge0: port 1(bridge_slave_0) entered forwarding state [ 689.976119][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 689.984431][ T7070] bridge0: port 2(bridge_slave_1) entered blocking state [ 689.991554][ T7070] bridge0: port 2(bridge_slave_1) entered forwarding state [ 690.010877][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 690.019576][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 690.030841][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 690.039961][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 690.056393][ T6859] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 690.067146][ T6859] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 690.079217][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 690.088002][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 690.097479][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 690.106782][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 690.117942][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 690.134101][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 690.142714][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 690.159808][ T6859] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 690.184392][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 690.194053][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 690.219800][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 690.229218][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 690.239679][ T6859] device veth0_vlan entered promiscuous mode [ 690.247355][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 690.254952][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 690.268727][ T6859] device veth1_vlan entered promiscuous mode [ 690.290022][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 690.299350][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 690.309070][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 690.317983][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 690.329447][ T6859] device veth0_macvtap entered promiscuous mode [ 690.339637][ T6859] device veth1_macvtap entered promiscuous mode [ 690.356811][ T6859] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 690.364133][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 690.373942][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 690.382708][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 690.392396][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 690.404705][ T6859] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 690.412036][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 690.421001][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 690.432277][ T6859] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 690.442291][ T6859] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 690.451034][ T6859] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 690.459795][ T6859] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 693.736518][ T3899] Bluetooth: hci0: command 0x0409 tx timeout 2020/08/01 06:42:41 executed programs: 93 [ 695.815881][ T3899] Bluetooth: hci0: command 0x041b tx timeout [ 697.895727][ T3899] Bluetooth: hci0: command 0x040f tx timeout 2020/08/01 06:42:46 executed programs: 326 [ 699.975912][ T3899] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/01 06:42:51 executed programs: 565 2020/08/01 06:42:56 executed programs: 800 2020/08/01 06:43:01 executed programs: 1041 [ 719.577533][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 760.536254][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! 2020/08/01 06:44:06 executed programs: 1205 2020/08/01 06:44:06 result: hanged=false err=executor 0: failed to write control pipe: write |1: broken pipe [ 778.156877][ T7779] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 778.174963][ T9922] IPVS: ftp: loaded support on port[0] = 21 [ 778.262857][ T7779] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 778.362547][ T7779] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 778.486660][ T7779] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 778.502908][ T9922] chnl_net:caif_netlink_parms(): no params data found [ 778.551312][ T9922] bridge0: port 1(bridge_slave_0) entered blocking state [ 778.560052][ T9922] bridge0: port 1(bridge_slave_0) entered disabled state [ 778.568637][ T9922] device bridge_slave_0 entered promiscuous mode [ 778.577816][ T9922] bridge0: port 2(bridge_slave_1) entered blocking state [ 778.584886][ T9922] bridge0: port 2(bridge_slave_1) entered disabled state [ 778.593200][ T9922] device bridge_slave_1 entered promiscuous mode [ 778.615258][ T9922] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 778.652808][ T9922] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 778.723408][ T7779] tipc: TX() has been purged, node left! [ 778.744114][ T9922] team0: Port device team_slave_0 added [ 778.795357][ T9922] team0: Port device team_slave_1 added [ 779.099196][ T9922] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 779.106303][ T9922] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 779.134216][ T9922] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 779.148391][ T9922] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 779.155343][ T9922] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 779.182452][ T9922] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 779.318880][ T9922] device hsr_slave_0 entered promiscuous mode [ 779.377143][ T9922] device hsr_slave_1 entered promiscuous mode [ 779.435719][ T9922] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 779.443550][ T9922] Cannot create hsr debugfs directory [ 779.680827][ T9922] 8021q: adding VLAN 0 to HW filter on device bond0 [ 779.759190][ T9922] 8021q: adding VLAN 0 to HW filter on device team0 [ 779.768228][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 779.777112][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 779.855589][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 779.864086][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 779.873446][ T2543] bridge0: port 1(bridge_slave_0) entered blocking state [ 779.880556][ T2543] bridge0: port 1(bridge_slave_0) entered forwarding state [ 779.954168][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 779.962351][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 779.971053][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 779.979534][ T7072] bridge0: port 2(bridge_slave_1) entered blocking state [ 779.986658][ T7072] bridge0: port 2(bridge_slave_1) entered forwarding state [ 779.998942][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 780.017141][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 780.028834][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 780.037760][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 780.047881][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 780.056922][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 780.065333][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 780.145976][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 780.154217][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 780.166781][ T9922] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 780.178516][ T9922] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 780.187856][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 780.197662][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 780.215971][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 780.223391][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 780.296577][ T9922] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 780.350435][ T7779] device hsr_slave_0 left promiscuous mode [ 780.416334][ T7779] device hsr_slave_1 left promiscuous mode [ 780.506058][ T7779] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 780.513542][ T7779] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 780.522930][ T7779] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 780.530438][ T7779] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 780.540586][ T7779] device bridge_slave_1 left promiscuous mode [ 780.547373][ T7779] bridge0: port 2(bridge_slave_1) entered disabled state [ 780.599283][ T7779] device bridge_slave_0 left promiscuous mode [ 780.605824][ T7779] bridge0: port 1(bridge_slave_0) entered disabled state [ 780.662366][ T7779] device veth1_macvtap left promiscuous mode [ 780.668656][ T7779] device veth0_macvtap left promiscuous mode [ 780.674668][ T7779] device veth1_vlan left promiscuous mode [ 780.681658][ T7779] device veth0_vlan left promiscuous mode [ 783.638533][ T7779] team0 (unregistering): Port device team_slave_1 removed [ 783.649630][ T7779] team0 (unregistering): Port device team_slave_0 removed [ 783.663171][ T7779] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 783.770418][ T7779] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 783.940470][ T7779] bond0 (unregistering): Released all slaves [ 784.094784][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 784.104026][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 784.126232][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 784.134469][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 784.143484][ T9922] device veth0_vlan entered promiscuous mode [ 784.152511][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 784.160953][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 784.174475][ T9922] device veth1_vlan entered promiscuous mode [ 784.196302][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 784.204287][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 784.215067][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 784.224059][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 784.236086][ T9922] device veth0_macvtap entered promiscuous mode [ 784.247341][ T9922] device veth1_macvtap entered promiscuous mode [ 784.263562][ T9922] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 784.271169][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 784.280237][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 784.288582][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 784.298067][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 784.309537][ T9922] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 784.319181][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 784.328254][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/08/01 06:44:13 executed programs: 1207 [ 787.575575][ T2616] Bluetooth: hci0: command 0x0409 tx timeout [ 789.655964][ T3899] Bluetooth: hci0: command 0x041b tx timeout 2020/08/01 06:44:18 executed programs: 1429 [ 791.735640][ T3899] Bluetooth: hci0: command 0x040f tx timeout [ 793.815708][ T3899] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/01 06:44:23 executed programs: 1665 2020/08/01 06:44:28 executed programs: 1890 2020/08/01 06:44:33 executed programs: 2107 2020/08/01 06:44:38 executed programs: 2325 2020/08/01 06:44:43 executed programs: 2529 2020/08/01 06:44:48 executed programs: 2733 2020/08/01 06:44:53 executed programs: 2962 2020/08/01 06:44:58 executed programs: 3172 [ 850.136547][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! 2020/08/01 06:45:59 executed programs: 3188 2020/08/01 06:45:59 result: hanged=false err=executor 0: failed to write control pipe: write |1: broken pipe [ 891.617797][T14879] IPVS: ftp: loaded support on port[0] = 21 [ 891.696483][ T7779] tipc: TX() has been purged, node left! [ 891.720918][T14879] chnl_net:caif_netlink_parms(): no params data found [ 891.881507][T14879] bridge0: port 1(bridge_slave_0) entered blocking state [ 891.888939][T14879] bridge0: port 1(bridge_slave_0) entered disabled state [ 891.897812][T14879] device bridge_slave_0 entered promiscuous mode [ 891.967860][T14879] bridge0: port 2(bridge_slave_1) entered blocking state [ 891.974989][T14879] bridge0: port 2(bridge_slave_1) entered disabled state [ 891.983081][T14879] device bridge_slave_1 entered promiscuous mode [ 892.003929][T14879] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 892.016182][T14879] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 892.096421][T14879] team0: Port device team_slave_0 added [ 892.104546][T14879] team0: Port device team_slave_1 added [ 892.123337][T14879] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 892.131196][T14879] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 892.157175][T14879] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 892.227103][T14879] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 892.234092][T14879] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 892.261663][T14879] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 892.329277][T14879] device hsr_slave_0 entered promiscuous mode [ 892.375704][T14879] device hsr_slave_1 entered promiscuous mode [ 892.712980][T14879] 8021q: adding VLAN 0 to HW filter on device bond0 [ 892.726958][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 892.734724][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 892.747499][T14879] 8021q: adding VLAN 0 to HW filter on device team0 [ 892.826305][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 892.835054][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 892.844574][ T2616] bridge0: port 1(bridge_slave_0) entered blocking state [ 892.851708][ T2616] bridge0: port 1(bridge_slave_0) entered forwarding state [ 892.859880][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 892.869523][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 892.878512][ T2616] bridge0: port 2(bridge_slave_1) entered blocking state [ 892.885652][ T2616] bridge0: port 2(bridge_slave_1) entered forwarding state [ 892.893174][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 892.902062][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 892.910881][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 892.919711][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 892.928846][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 892.937131][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 893.009966][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 893.019044][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 893.031701][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 893.042369][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 893.054807][ T7779] device hsr_slave_0 left promiscuous mode [ 893.125284][ T7779] device hsr_slave_1 left promiscuous mode [ 893.205286][ T7779] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 893.212692][ T7779] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 893.221738][ T7779] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 893.229595][ T7779] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 893.238688][ T7779] device bridge_slave_1 left promiscuous mode [ 893.244832][ T7779] bridge0: port 2(bridge_slave_1) entered disabled state [ 893.275980][ T7779] device bridge_slave_0 left promiscuous mode [ 893.282257][ T7779] bridge0: port 1(bridge_slave_0) entered disabled state [ 893.339156][ T7779] device veth1_macvtap left promiscuous mode [ 893.345262][ T7779] device veth0_macvtap left promiscuous mode [ 893.351312][ T7779] device veth1_vlan left promiscuous mode [ 893.358298][ T7779] device veth0_vlan left promiscuous mode [ 896.276837][ T7779] team0 (unregistering): Port device team_slave_1 removed [ 896.289060][ T7779] team0 (unregistering): Port device team_slave_0 removed [ 896.299898][ T7779] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 896.339589][ T7779] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 896.479581][ T7779] bond0 (unregistering): Released all slaves [ 896.572401][T14879] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 896.583654][T14879] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 896.596827][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 896.605320][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 896.629621][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 896.637111][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 896.651645][T14879] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 896.709044][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 896.718430][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 896.734953][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 896.747347][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 896.756014][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 896.763803][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 896.774212][T14879] device veth0_vlan entered promiscuous mode [ 896.786497][T14879] device veth1_vlan entered promiscuous mode [ 896.808466][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 896.816804][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 896.824649][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 896.834374][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 896.845975][T14879] device veth0_macvtap entered promiscuous mode [ 896.855816][T14879] device veth1_macvtap entered promiscuous mode [ 896.872638][T14879] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 896.880008][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 896.888699][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 896.897502][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 896.906473][ T2616] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 896.918974][T14879] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 896.926478][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 896.934878][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/08/01 06:46:06 executed programs: 3190 [ 900.215167][ T7072] Bluetooth: hci0: command 0x0409 tx timeout [ 902.295603][ T7072] Bluetooth: hci0: command 0x041b tx timeout 2020/08/01 06:46:11 executed programs: 3377 [ 904.375346][ T7072] Bluetooth: hci0: command 0x040f tx timeout [ 906.455267][ T6922] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/01 06:46:16 executed programs: 3563 2020/08/01 06:46:21 executed programs: 3762 [ 942.935771][ T0] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! 2020/08/01 06:47:23 executed programs: 3811 2020/08/01 06:47:23 result: hanged=false err=executor 0: failed to write control pipe: write |1: broken pipe [ 975.115717][T16608] IPVS: ftp: loaded support on port[0] = 21 [ 975.136068][ T6868] tipc: TX() has been purged, node left! [ 975.330002][T16608] chnl_net:caif_netlink_parms(): no params data found [ 975.435949][T16608] bridge0: port 1(bridge_slave_0) entered blocking state [ 975.443061][T16608] bridge0: port 1(bridge_slave_0) entered disabled state [ 975.451461][T16608] device bridge_slave_0 entered promiscuous mode [ 975.519065][T16608] bridge0: port 2(bridge_slave_1) entered blocking state [ 975.526274][T16608] bridge0: port 2(bridge_slave_1) entered disabled state [ 975.533917][T16608] device bridge_slave_1 entered promiscuous mode [ 975.611886][T16608] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 975.622950][T16608] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 975.650240][T16608] team0: Port device team_slave_0 added [ 975.657795][T16608] team0: Port device team_slave_1 added [ 975.676183][T16608] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 975.683116][T16608] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 975.709866][T16608] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 975.722404][T16608] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 975.730017][T16608] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 975.756700][T16608] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 975.887663][T16608] device hsr_slave_0 entered promiscuous mode [ 975.925203][T16608] device hsr_slave_1 entered promiscuous mode [ 975.964916][T16608] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 975.972468][T16608] Cannot create hsr debugfs directory [ 976.262815][T16608] 8021q: adding VLAN 0 to HW filter on device bond0 [ 976.276853][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 976.284647][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 976.354211][T16608] 8021q: adding VLAN 0 to HW filter on device team0 [ 976.364177][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 976.374261][ T7072] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 976.383547][ T7072] bridge0: port 1(bridge_slave_0) entered blocking state [ 976.390658][ T7072] bridge0: port 1(bridge_slave_0) entered forwarding state [ 976.403448][ T6868] device hsr_slave_0 left promiscuous mode [ 976.475215][ T6868] device hsr_slave_1 left promiscuous mode [ 976.564937][ T6868] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 976.572351][ T6868] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 976.581475][ T6868] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 976.589801][ T6868] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 976.598490][ T6868] device bridge_slave_1 left promiscuous mode [ 976.604649][ T6868] bridge0: port 2(bridge_slave_1) entered disabled state [ 976.635682][ T6868] device bridge_slave_0 left promiscuous mode [ 976.641844][ T6868] bridge0: port 1(bridge_slave_0) entered disabled state [ 976.687830][ T6868] device veth1_macvtap left promiscuous mode [ 976.693824][ T6868] device veth0_macvtap left promiscuous mode [ 976.701050][ T6868] device veth1_vlan left promiscuous mode [ 976.707374][ T6868] device veth0_vlan left promiscuous mode [ 979.588318][ T6868] team0 (unregistering): Port device team_slave_1 removed [ 979.599235][ T6868] team0 (unregistering): Port device team_slave_0 removed [ 979.610651][ T6868] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 979.639974][ T6868] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 979.739760][ T6868] bond0 (unregistering): Released all slaves [ 979.817479][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 979.836037][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 979.844610][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 979.853730][ T3899] bridge0: port 2(bridge_slave_1) entered blocking state [ 979.860848][ T3899] bridge0: port 2(bridge_slave_1) entered forwarding state [ 979.868872][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 979.878584][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 979.917193][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 979.928343][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 979.938349][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 979.952610][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 979.962852][ T6922] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 979.974378][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 979.983172][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 979.997687][T16608] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 980.010009][T16608] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 980.018556][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 980.028143][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 980.045466][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 980.052884][ T7070] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 980.067894][T16608] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 980.126136][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 980.136619][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 980.153486][T16608] device veth0_vlan entered promiscuous mode [ 980.160357][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 980.169453][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 980.178929][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 980.186765][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 980.200437][T16608] device veth1_vlan entered promiscuous mode [ 980.222095][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 980.230978][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 980.239571][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 980.248433][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 980.260205][T16608] device veth0_macvtap entered promiscuous mode [ 980.269927][T16608] device veth1_macvtap entered promiscuous mode [ 980.286920][T16608] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 980.294188][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 980.303487][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 980.311737][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 980.320743][ T3899] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 980.332708][T16608] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 980.343904][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 980.352789][ T2543] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/08/01 06:47:29 executed programs: 3813 [ 983.654991][ T6922] Bluetooth: hci0: command 0x0409 tx timeout [ 985.736466][ T6922] Bluetooth: hci0: command 0x041b tx timeout 2020/08/01 06:47:34 executed programs: 4017 [ 987.814991][ T2543] Bluetooth: hci0: command 0x040f tx timeout [ 989.895315][ T6922] Bluetooth: hci0: command 0x0419 tx timeout 2020/08/01 06:47:39 executed programs: 4185 2020/08/01 06:47:44 executed programs: 4374 2020/08/01 06:47:49 executed programs: 4540 2020/08/01 06:47:54 executed programs: 4676 2020/08/01 06:47:59 executed programs: 4854 2020/08/01 06:48:04 executed programs: 5047 2020/08/01 06:48:09 executed programs: 5184 2020/08/01 06:48:14 executed programs: 5332 2020/08/01 06:48:19 executed programs: 5486 2020/08/01 06:48:24 executed programs: 5633 2020/08/01 06:48:29 executed programs: 5810 2020/08/01 06:48:34 executed programs: 5980 2020/08/01 06:48:39 executed programs: 6137 2020/08/01 06:48:44 executed programs: 6317 2020/08/01 06:48:49 executed programs: 6522 2020/08/01 06:48:55 executed programs: 6630 2020/08/01 06:49:00 executed programs: 6824 2020/08/01 06:49:05 executed programs: 7021 2020/08/01 06:49:10 executed programs: 7194 2020/08/01 06:49:15 executed programs: 7336 2020/08/01 06:49:20 executed programs: 7502 2020/08/01 06:49:25 executed programs: 7638 2020/08/01 06:49:30 executed programs: 7830 [ 1107.575087][ T7070] Bluetooth: hci0: command 0x0406 tx timeout 2020/08/01 06:49:35 executed programs: 7956 2020/08/01 06:49:40 executed programs: 8114 2020/08/01 06:49:45 executed programs: 8258 2020/08/01 06:49:50 executed programs: 8386 2020/08/01 06:49:55 executed programs: 8544 [ 1128.536099][ T1170] INFO: task syz-execprog:6857 blocked for more than 143 seconds. [ 1128.544082][ T1170] Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1128.567204][ T1170] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1128.579316][ T1170] syz-execprog D27640 6857 6837 0x00004000 [ 1128.586607][ T1170] Call Trace: [ 1128.590058][ T1170] __schedule+0x8e5/0x21e0 [ 1128.594604][ T1170] ? io_schedule_timeout+0x140/0x140 [ 1128.611524][ T1170] schedule+0xd0/0x2a0 [ 1128.625160][ T1170] schedule_preempt_disabled+0xf/0x20 [ 1128.643759][ T1170] __mutex_lock+0x3e2/0x10e0 [ 1128.649493][ T1170] ? pipe_read+0x136/0x13d0 [ 1128.654110][ T1170] ? mutex_lock_io_nested+0xf60/0xf60 [ 1128.661074][ T1170] ? lockdep_hardirqs_on_prepare+0x530/0x530 [ 1128.668863][ T1170] ? atime_needs_update+0x491/0x5f0 [ 1128.686832][ T1170] ? lock_acquire+0x1f1/0xad0 [ 1128.691527][ T1170] ? aa_file_perm+0x119/0x1100 [ 1128.699065][ T1170] ? find_held_lock+0x2d/0x110 [ 1128.717086][ T1170] pipe_read+0x136/0x13d0 [ 1128.721435][ T1170] ? __lock_acquire+0xbb5/0x5640 [ 1128.727753][ T1170] ? pipe_ioctl+0x2b0/0x2b0 [ 1128.743060][ T1170] ? aa_file_perm+0x5e2/0x1100 [ 1128.750889][ T1170] ? lock_downgrade+0x830/0x830 [ 1128.756661][ T1170] ? fsnotify+0x96a/0xf80 [ 1128.771928][ T1170] ? aa_path_link+0x2f0/0x2f0 [ 1128.784832][ T1170] new_sync_read+0x5b3/0x6e0 [ 1128.805093][ T1170] ? ksys_lseek+0x1b0/0x1b0 [ 1128.809639][ T1170] vfs_read+0x383/0x5a0 [ 1128.813813][ T1170] ksys_read+0x1ee/0x250 [ 1128.855229][ T1170] ? vfs_write+0x730/0x730 [ 1128.859670][ T1170] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 1128.885144][ T1170] ? trace_hardirqs_on+0x5f/0x220 [ 1128.890263][ T1170] ? lockdep_hardirqs_on+0x76/0xf0 [ 1128.925986][ T1170] do_syscall_64+0x2d/0x70 [ 1128.930442][ T1170] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1128.941709][ T1170] RIP: 0033:0x4ad88b [ 1128.950353][ T1170] Code: Bad RIP value. [ 1128.959593][ T1170] RSP: 002b:000000c00002ae10 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 1128.991509][ T1170] RAX: ffffffffffffffda RBX: 000000c000020800 RCX: 00000000004ad88b [ 1129.035058][ T1170] RDX: 0000000000010000 RSI: 000000c000390000 RDI: 0000000000000008 [ 1129.043094][ T1170] RBP: 000000c00002ae60 R08: 0000000000000001 R09: 0000000000000002 [ 1129.065272][ T1170] R10: 000000c000380000 R11: 0000000000000202 R12: 0000000000000003 [ 1129.073265][ T1170] R13: 000000c000082a80 R14: 000000c000310600 R15: 0000000000000000 [ 1129.105166][ T1170] INFO: task syz-executor.0:17080 blocked for more than 143 seconds. [ 1129.113250][ T1170] Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1129.139498][ T1170] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1129.175086][ T1170] syz-executor.0 D29144 17080 16608 0x00000000 [ 1129.181562][ T1170] Call Trace: [ 1129.184876][ T1170] __schedule+0x8e5/0x21e0 [ 1129.215070][ T1170] ? io_schedule_timeout+0x140/0x140 [ 1129.220394][ T1170] schedule+0xd0/0x2a0 [ 1129.224486][ T1170] schedule_preempt_disabled+0xf/0x20 [ 1129.255129][ T1170] __mutex_lock+0x3e2/0x10e0 [ 1129.259759][ T1170] ? pipe_write+0x12c/0x16c0 [ 1129.264367][ T1170] ? mutex_lock_io_nested+0xf60/0xf60 [ 1129.285730][ T1170] ? fixup_owner+0x150/0x150 [ 1129.290364][ T1170] ? aa_file_perm+0x119/0x1100 [ 1129.305174][ T1170] ? find_held_lock+0x2d/0x110 [ 1129.309955][ T1170] ? aa_file_perm+0x5b8/0x1100 [ 1129.314732][ T1170] pipe_write+0x12c/0x16c0 [ 1129.341957][ T1170] ? anon_pipe_buf_try_steal+0x2a0/0x2a0 [ 1129.355061][ T1170] ? aa_path_link+0x2f0/0x2f0 [ 1129.359757][ T1170] ? lock_acquire+0x1f1/0xad0 [ 1129.364449][ T1170] ? __might_fault+0xef/0x1d0 [ 1129.395060][ T1170] ? find_held_lock+0x2d/0x110 [ 1129.399917][ T1170] new_sync_write+0x422/0x650 [ 1129.404604][ T1170] ? new_sync_read+0x6e0/0x6e0 [ 1129.441040][ T1170] ? read_seqcount_begin.constprop.0+0xd9/0x1f0 [ 1129.457787][ T1170] ? apparmor_file_permission+0x26e/0x4e0 [ 1129.463551][ T1170] vfs_write+0x5ad/0x730 [ 1129.475857][ T1170] ksys_write+0x1ee/0x250 [ 1129.480209][ T1170] ? __ia32_sys_read+0xb0/0xb0 [ 1129.484997][ T1170] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 1129.492763][ T1170] ? trace_hardirqs_on+0x5f/0x220 [ 1129.500913][ T1170] ? lockdep_hardirqs_on+0x76/0xf0 [ 1129.506914][ T1170] do_syscall_64+0x2d/0x70 [ 1129.511354][ T1170] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1129.524273][ T1170] RIP: 0033:0x45cc79 [ 1129.530888][ T1170] Code: Bad RIP value. [ 1129.534966][ T1170] RSP: 002b:00007fff6c963cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1129.544719][ T1170] RAX: ffffffffffffffda RBX: 0000000000037d40 RCX: 000000000045cc79 [ 1129.554704][ T1170] RDX: 000000000208e24b RSI: 0000000020000040 RDI: 0000000000000000 [ 1129.572080][ T1170] RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 [ 1129.605162][ T1170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000790378 [ 1129.632777][ T1170] R13: 0000000000000000 R14: 0000000000000df5 R15: 000000000078bf0c [ 1129.666319][ T1170] INFO: task syz-executor.0:17140 blocked for more than 144 seconds. [ 1129.674408][ T1170] Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1129.706091][ T1170] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1129.714781][ T1170] syz-executor.0 D29144 17140 16608 0x00000000 [ 1129.766158][ T1170] Call Trace: [ 1129.769740][ T1170] __schedule+0x8e5/0x21e0 [ 1129.786044][ T1170] ? io_schedule_timeout+0x140/0x140 [ 1129.791355][ T1170] schedule+0xd0/0x2a0 [ 1129.815118][ T1170] schedule_preempt_disabled+0xf/0x20 [ 1129.820567][ T1170] __mutex_lock+0x3e2/0x10e0 [ 1129.835066][ T1170] ? pipe_write+0x12c/0x16c0 [ 1129.846465][ T1170] ? mutex_lock_io_nested+0xf60/0xf60 [ 1129.851860][ T1170] ? fixup_owner+0x150/0x150 [ 1129.875080][ T1170] ? aa_file_perm+0x119/0x1100 [ 1129.879960][ T1170] ? find_held_lock+0x2d/0x110 [ 1129.906114][ T1170] ? aa_file_perm+0x5b8/0x1100 [ 1129.910912][ T1170] pipe_write+0x12c/0x16c0 [ 1129.935099][ T1170] ? anon_pipe_buf_try_steal+0x2a0/0x2a0 [ 1129.940886][ T1170] ? aa_path_link+0x2f0/0x2f0 [ 1129.947108][ T1170] ? lock_acquire+0x1f1/0xad0 [ 1129.951800][ T1170] ? __might_fault+0xef/0x1d0 [ 1129.966083][ T1170] ? find_held_lock+0x2d/0x110 [ 1129.970867][ T1170] new_sync_write+0x422/0x650 [ 1129.991464][ T1170] ? new_sync_read+0x6e0/0x6e0 [ 1130.003890][ T1170] ? read_seqcount_begin.constprop.0+0xd9/0x1f0 [ 1130.030849][ T1170] ? apparmor_file_permission+0x26e/0x4e0 [ 1130.058384][ T1170] vfs_write+0x5ad/0x730 [ 1130.062695][ T1170] ksys_write+0x1ee/0x250 [ 1130.077447][ T1170] ? __ia32_sys_read+0xb0/0xb0 [ 1130.105935][ T1170] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 1130.111942][ T1170] ? trace_hardirqs_on+0x5f/0x220 [ 1130.139743][ T1170] ? lockdep_hardirqs_on+0x76/0xf0 [ 1130.145678][ T1170] do_syscall_64+0x2d/0x70 [ 1130.175115][ T1170] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1130.181037][ T1170] RIP: 0033:0x45cc79 [ 1130.184924][ T1170] Code: Bad RIP value. [ 1130.205525][ T1170] RSP: 002b:00007fff6c963cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1130.213964][ T1170] RAX: ffffffffffffffda RBX: 0000000000037d40 RCX: 000000000045cc79 [ 1130.245055][ T1170] RDX: 000000000208e24b RSI: 0000000020000040 RDI: 0000000000000000 [ 1130.253050][ T1170] RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 [ 1130.282174][ T1170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000790378 [ 1130.305117][ T1170] R13: 0000000000000000 R14: 0000000000000df5 R15: 000000000078bf0c [ 1130.313162][ T1170] INFO: task syz-executor.0:17145 blocked for more than 145 seconds. [ 1130.345067][ T1170] Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1130.361943][ T1170] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1130.387213][ T1170] syz-executor.0 D29144 17145 16608 0x00000000 [ 1130.393590][ T1170] Call Trace: [ 1130.416127][ T1170] __schedule+0x8e5/0x21e0 [ 1130.420578][ T1170] ? io_schedule_timeout+0x140/0x140 [ 1130.432904][ T1170] schedule+0xd0/0x2a0 [ 1130.442035][ T1170] schedule_preempt_disabled+0xf/0x20 [ 1130.456216][ T1170] __mutex_lock+0x3e2/0x10e0 [ 1130.460826][ T1170] ? pipe_write+0x12c/0x16c0 [ 1130.485077][ T1170] ? mutex_lock_io_nested+0xf60/0xf60 [ 1130.490473][ T1170] ? fixup_owner+0x150/0x150 [ 1130.511829][ T1170] ? aa_file_perm+0x119/0x1100 [ 1130.517961][ T1170] ? find_held_lock+0x2d/0x110 [ 1130.535099][ T1170] ? aa_file_perm+0x5b8/0x1100 [ 1130.539886][ T1170] pipe_write+0x12c/0x16c0 [ 1130.562827][ T1170] ? anon_pipe_buf_try_steal+0x2a0/0x2a0 [ 1130.569541][ T1170] ? aa_path_link+0x2f0/0x2f0 [ 1130.574238][ T1170] ? lock_acquire+0x1f1/0xad0 [ 1130.595069][ T1170] ? __might_fault+0xef/0x1d0 [ 1130.607810][ T1170] ? find_held_lock+0x2d/0x110 [ 1130.612600][ T1170] new_sync_write+0x422/0x650 [ 1130.635139][ T1170] ? new_sync_read+0x6e0/0x6e0 [ 1130.639939][ T1170] ? read_seqcount_begin.constprop.0+0xd9/0x1f0 [ 1130.665072][ T1170] ? apparmor_file_permission+0x26e/0x4e0 [ 1130.670918][ T1170] vfs_write+0x5ad/0x730 [ 1130.676551][ T1170] ksys_write+0x1ee/0x250 [ 1130.680903][ T1170] ? __ia32_sys_read+0xb0/0xb0 [ 1130.697176][ T1170] ? lockdep_hardirqs_on_prepare+0x354/0x530 [ 1130.703206][ T1170] ? trace_hardirqs_on+0x5f/0x220 [ 1130.716196][ T1170] ? lockdep_hardirqs_on+0x76/0xf0 [ 1130.721330][ T1170] do_syscall_64+0x2d/0x70 [ 1130.745110][ T1170] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 1130.751283][ T1170] RIP: 0033:0x45cc79 [ 1130.765048][ T1170] Code: Bad RIP value. [ 1130.769126][ T1170] RSP: 002b:00007fff6c963cf8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 1130.798158][ T1170] RAX: ffffffffffffffda RBX: 0000000000037d40 RCX: 000000000045cc79 [ 1130.816044][ T1170] RDX: 000000000208e24b RSI: 0000000020000040 RDI: 0000000000000000 [ 1130.825863][ T1170] RBP: 000000000078bf40 R08: 0000000000000000 R09: 0000000000000000 [ 1130.833851][ T1170] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000790378 [ 1130.879600][ T1170] R13: 0000000000000000 R14: 0000000000000df5 R15: 000000000078bf0c [ 1130.910654][ T1170] [ 1130.910654][ T1170] Showing all locks held in the system: [ 1130.961357][ T1170] 1 lock held by khungtaskd/1170: [ 1130.980370][ T1170] #0: ffffffff89c52a80 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 [ 1131.006242][ T1170] 1 lock held by systemd-udevd/3906: [ 1131.016306][ T1170] 1 lock held by in:imklog/6629: [ 1131.049116][ T1170] #0: ffff8880996bf930 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 [ 1131.063083][ T1170] 1 lock held by syz-execprog/6857: [ 1131.082155][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_read+0x136/0x13d0 [ 1131.105061][ T1170] 1 lock held by syz-executor.0/16822: [ 1131.110542][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x5bd/0x16c0 [ 1131.147441][ T1170] 1 lock held by syz-executor.0/17080: [ 1131.183183][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.216080][ T1170] 1 lock held by syz-executor.0/17140: [ 1131.221652][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.256380][ T1170] 1 lock held by syz-executor.0/17145: [ 1131.261852][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.295281][ T1170] 1 lock held by syz-executor.0/17209: [ 1131.300754][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.335162][ T1170] 1 lock held by syz-executor.0/17222: [ 1131.345841][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.371203][ T1170] 1 lock held by syz-executor.0/17312: [ 1131.384282][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.410701][ T1170] 1 lock held by syz-executor.0/17314: [ 1131.435047][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.444313][ T1170] 1 lock held by syz-executor.0/17317: [ 1131.461331][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.495168][ T1170] 1 lock held by syz-executor.0/17333: [ 1131.512504][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.538637][ T1170] 1 lock held by syz-executor.0/17360: [ 1131.549954][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.572843][ T1170] 1 lock held by syz-executor.0/17363: [ 1131.583505][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.605718][ T1170] 1 lock held by syz-executor.0/17369: [ 1131.615833][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.640742][ T1170] 1 lock held by syz-executor.0/17377: [ 1131.649100][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.676199][ T1170] 1 lock held by syz-executor.0/17382: [ 1131.681661][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.694628][ T1170] 1 lock held by syz-executor.0/17385: [ 1131.703790][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.734037][ T1170] 1 lock held by syz-executor.0/17390: [ 1131.755043][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.764354][ T1170] 1 lock held by syz-executor.0/17400: [ 1131.792343][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.806148][ T1170] 1 lock held by syz-executor.0/17410: [ 1131.811624][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.846080][ T1170] 1 lock held by syz-executor.0/17415: [ 1131.851555][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.886880][ T1170] 1 lock held by syz-executor.0/17441: [ 1131.892357][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.924914][ T1170] 1 lock held by syz-executor.0/17489: [ 1131.932157][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.966086][ T1170] 1 lock held by syz-executor.0/17501: [ 1131.971557][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1131.995054][ T1170] 1 lock held by syz-executor.0/17516: [ 1132.000528][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.035431][ T1170] 1 lock held by syz-executor.0/17524: [ 1132.040985][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.074030][ T1170] 1 lock held by syz-executor.0/17531: [ 1132.086939][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.113244][ T1170] 1 lock held by syz-executor.0/17574: [ 1132.126078][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.152780][ T1170] 1 lock held by syz-executor.0/17579: [ 1132.166092][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.195083][ T1170] 1 lock held by syz-executor.0/17582: [ 1132.200561][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.224684][ T1170] 1 lock held by syz-executor.0/17584: [ 1132.235220][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.244495][ T1170] 1 lock held by syz-executor.0/17587: [ 1132.275090][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.284402][ T1170] 1 lock held by syz-executor.0/17590: [ 1132.304763][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.327050][ T1170] 1 lock held by syz-executor.0/17593: [ 1132.339590][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.367357][ T1170] 1 lock held by syz-executor.0/17595: [ 1132.378293][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.397259][ T1170] 1 lock held by syz-executor.0/17600: [ 1132.414854][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.433050][ T1170] 1 lock held by syz-executor.0/17605: [ 1132.447127][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.461622][ T1170] 1 lock held by syz-executor.0/17610: [ 1132.469304][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.480383][ T1170] 1 lock held by syz-executor.0/17612: [ 1132.499535][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.512848][ T1170] 1 lock held by syz-executor.0/17615: [ 1132.521403][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.531600][ T1170] 1 lock held by syz-executor.0/17625: [ 1132.552483][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.562738][ T1170] 1 lock held by syz-executor.0/17632: [ 1132.570198][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.593755][ T1170] 1 lock held by syz-executor.0/17637: [ 1132.600142][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.632244][ T1170] 1 lock held by syz-executor.0/17661: [ 1132.642590][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.654177][ T1170] 1 lock held by syz-executor.0/17691: [ 1132.660617][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.683216][ T1170] 1 lock held by syz-executor.0/17731: [ 1132.698559][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.708914][ T1170] 1 lock held by syz-executor.0/17752: [ 1132.714530][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.741131][ T1170] 1 lock held by syz-executor.0/17764: [ 1132.747647][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.758996][ T1170] 1 lock held by syz-executor.0/17781: [ 1132.764603][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.798894][ T1170] 1 lock held by syz-executor.0/17786: [ 1132.804557][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.816941][ T1170] 1 lock held by syz-executor.0/17791: [ 1132.822534][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.848305][ T1170] 1 lock held by syz-executor.0/17794: [ 1132.854501][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.868293][ T1170] 1 lock held by syz-executor.0/17819: [ 1132.873851][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 2020/08/01 06:50:00 executed programs: 8684 [ 1132.895059][ T1170] 1 lock held by syz-executor.0/17829: [ 1132.900554][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.922935][ T1170] 1 lock held by syz-executor.0/17876: [ 1132.937954][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.952352][ T1170] 1 lock held by syz-executor.0/17891: [ 1132.959929][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1132.970748][ T1170] 1 lock held by syz-executor.0/17894: [ 1132.989481][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.008533][ T1170] 1 lock held by syz-executor.0/17896: [ 1133.019403][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.036772][ T1170] 1 lock held by syz-executor.0/17906: [ 1133.042297][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.064842][ T1170] 1 lock held by syz-executor.0/18001: [ 1133.071701][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.093575][ T1170] 1 lock held by syz-executor.0/18044: [ 1133.106404][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.118507][ T1170] 1 lock held by syz-executor.0/18054: [ 1133.135846][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.150164][ T1170] 1 lock held by syz-executor.0/18067: [ 1133.161384][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.189518][ T1170] 1 lock held by syz-executor.0/18087: [ 1133.194983][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.237006][ T1170] 1 lock held by syz-executor.0/18093: [ 1133.242582][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.265061][ T1170] 1 lock held by syz-executor.0/18098: [ 1133.270534][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.315082][ T1170] 1 lock held by syz-executor.0/18105: [ 1133.320555][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.351514][ T1170] 1 lock held by syz-executor.0/18130: [ 1133.375072][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.384348][ T1170] 1 lock held by syz-executor.0/18133: [ 1133.415077][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.424350][ T1170] 1 lock held by syz-executor.0/18146: [ 1133.465051][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.474364][ T1170] 1 lock held by syz-executor.0/18149: [ 1133.505048][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.514353][ T1170] 1 lock held by syz-executor.0/18153: [ 1133.555079][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.564372][ T1170] 1 lock held by syz-executor.0/18165: [ 1133.605046][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.614313][ T1170] 1 lock held by syz-executor.0/18173: [ 1133.635071][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.664480][ T1170] 1 lock held by syz-executor.0/18185: [ 1133.670474][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.701204][ T1170] 1 lock held by syz-executor.0/18190: [ 1133.708991][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.735471][ T1170] 1 lock held by syz-executor.0/18195: [ 1133.740942][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.771869][ T1170] 1 lock held by syz-executor.0/18202: [ 1133.778691][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.805059][ T1170] 1 lock held by syz-executor.0/18207: [ 1133.810525][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.835140][ T1170] 1 lock held by syz-executor.0/18217: [ 1133.840626][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.865112][ T1170] 1 lock held by syz-executor.0/18222: [ 1133.870592][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.916876][ T1170] 1 lock held by syz-executor.0/18225: [ 1133.945051][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1133.954364][ T1170] 1 lock held by syz-executor.0/18237: [ 1133.985360][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.007419][ T1170] 1 lock held by syz-executor.0/18250: [ 1134.012885][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.045892][ T1170] 1 lock held by syz-executor.0/18255: [ 1134.051369][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.083525][ T1170] 1 lock held by syz-executor.0/18269: [ 1134.096049][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.117519][ T1170] 1 lock held by syz-executor.0/18286: [ 1134.122983][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.156218][ T1170] 1 lock held by syz-executor.0/18296: [ 1134.163819][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.185119][ T1170] 1 lock held by syz-executor.0/18304: [ 1134.216058][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.249499][ T1170] 1 lock held by syz-executor.0/18306: [ 1134.256729][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.278747][ T1170] 1 lock held by syz-executor.0/18311: [ 1134.284321][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.294108][ T1170] 1 lock held by syz-executor.0/18321: [ 1134.301189][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.313417][ T1170] 1 lock held by syz-executor.0/18335: [ 1134.322309][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.344720][ T1170] 1 lock held by syz-executor.0/18340: [ 1134.356325][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.369128][ T1170] 1 lock held by syz-executor.0/18343: [ 1134.378149][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.395687][ T1170] 1 lock held by syz-executor.0/18358: [ 1134.401157][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.445121][ T1170] 1 lock held by syz-executor.0/18361: [ 1134.450608][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.485190][ T1170] 1 lock held by syz-executor.0/18363: [ 1134.490673][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.515094][ T1170] 1 lock held by syz-executor.0/18378: [ 1134.520580][ T1170] 1 lock held by syz-executor.0/18409: [ 1134.566927][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.595228][ T1170] 1 lock held by syz-executor.0/18792: [ 1134.628599][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.663518][ T1170] 1 lock held by syz-executor.0/19006: [ 1134.690080][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.708694][ T1170] 1 lock held by syz-executor.0/19154: [ 1134.739426][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.752381][ T1170] 1 lock held by syz-executor.0/19338: [ 1134.785171][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.794545][ T1170] 1 lock held by syz-executor.0/20014: [ 1134.831824][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.875065][ T1170] 1 lock held by syz-executor.0/20107: [ 1134.880902][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.908922][ T1170] 1 lock held by syz-executor.0/20266: [ 1134.914416][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.945067][ T1170] 1 lock held by syz-executor.0/20673: [ 1134.950573][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1134.995744][ T1170] 1 lock held by syz-executor.0/20961: [ 1135.001237][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.032375][ T1170] 1 lock held by syz-executor.0/21389: [ 1135.040690][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.057783][ T1170] 1 lock held by syz-executor.0/21601: [ 1135.063251][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.076511][ T1170] 1 lock held by syz-executor.0/21778: [ 1135.081997][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.092323][ T1170] 1 lock held by syz-executor.0/21835: [ 1135.105137][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.145145][ T1170] 1 lock held by syz-executor.0/21965: [ 1135.150725][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.169766][ T1170] 1 lock held by syz-executor.0/22161: [ 1135.177817][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.195864][ T1170] 1 lock held by syz-executor.0/22243: [ 1135.201336][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.216226][ T1170] 1 lock held by syz-executor.0/22293: [ 1135.221805][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.232097][ T1170] 1 lock held by syz-executor.0/22530: [ 1135.238188][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.275088][ T1170] 1 lock held by syz-executor.0/22681: [ 1135.280588][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.317267][ T1170] 1 lock held by syz-executor.0/22732: [ 1135.322752][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.334740][ T1170] 1 lock held by syz-executor.0/22837: [ 1135.340453][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.349947][ T1170] 1 lock held by syz-executor.0/23154: [ 1135.356803][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.387465][ T1170] 1 lock held by syz-executor.0/23328: [ 1135.403548][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.449858][ T1170] 1 lock held by syz-executor.0/23804: [ 1135.475072][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.484349][ T1170] 1 lock held by syz-executor.0/24439: [ 1135.505171][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.545065][ T1170] 1 lock held by syz-executor.0/24641: [ 1135.550550][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.576526][ T1170] 1 lock held by syz-executor.0/24706: [ 1135.581992][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.635064][ T1170] 1 lock held by syz-executor.0/24903: [ 1135.640542][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.686058][ T1170] 1 lock held by syz-executor.0/25118: [ 1135.691524][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.730108][ T1170] 1 lock held by syz-executor.0/25179: [ 1135.745994][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.768069][ T1170] 1 lock held by syz-executor.0/25463: [ 1135.773545][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.826105][ T1170] 1 lock held by syz-executor.0/25472: [ 1135.831656][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.851202][ T1170] 1 lock held by syz-executor.0/25518: [ 1135.862742][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.911486][ T1170] 1 lock held by syz-executor.0/25592: [ 1135.926598][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.946153][ T1170] 1 lock held by syz-executor.0/25594: [ 1135.951678][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1135.996085][ T1170] 1 lock held by syz-executor.0/25880: [ 1136.001560][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.035068][ T1170] 1 lock held by syz-executor.0/25891: [ 1136.040549][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.064169][ T1170] 1 lock held by syz-executor.0/25902: [ 1136.086100][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.106078][ T1170] 1 lock held by syz-executor.0/25953: [ 1136.115983][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.137615][ T1170] 1 lock held by syz-executor.0/26037: [ 1136.143112][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.171101][ T1170] 1 lock held by syz-executor.0/26090: [ 1136.183642][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.207291][ T1170] 1 lock held by syz-executor.0/26218: [ 1136.220533][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.232873][ T1170] 1 lock held by syz-executor.0/26292: [ 1136.252384][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.284898][ T1170] 1 lock held by syz-executor.0/26496: [ 1136.296190][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.312983][ T1170] 1 lock held by syz-executor.0/26671: [ 1136.327233][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.366205][ T1170] 1 lock held by syz-executor.0/26755: [ 1136.371701][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.399646][ T1170] 1 lock held by syz-executor.0/26764: [ 1136.415881][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.435255][ T1170] 1 lock held by syz-executor.0/27070: [ 1136.440769][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.468332][ T1170] 1 lock held by syz-executor.0/27105: [ 1136.473814][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.515905][ T1170] 1 lock held by syz-executor.0/27176: [ 1136.521472][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.557183][ T1170] 1 lock held by syz-executor.0/27637: [ 1136.562656][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.581055][ T1170] 1 lock held by syz-executor.0/27730: [ 1136.595339][ T1170] #0: ffff888092562068 (&pipe->mutex/1){+.+.}-{3:3}, at: pipe_write+0x12c/0x16c0 [ 1136.604614][ T1170] [ 1136.613856][ T1170] ============================================= [ 1136.613856][ T1170] [ 1136.626875][ T1170] NMI backtrace for cpu 1 [ 1136.631347][ T1170] CPU: 1 PID: 1170 Comm: khungtaskd Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1136.640795][ T1170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1136.650847][ T1170] Call Trace: [ 1136.654143][ T1170] dump_stack+0x18f/0x20d [ 1136.658478][ T1170] nmi_cpu_backtrace.cold+0x44/0xd7 [ 1136.663680][ T1170] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 1136.669313][ T1170] nmi_trigger_cpumask_backtrace+0x1b3/0x223 [ 1136.675300][ T1170] watchdog+0xd89/0xf30 [ 1136.679462][ T1170] ? trace_sched_process_hang+0x2e0/0x2e0 [ 1136.685187][ T1170] kthread+0x3b5/0x4a0 [ 1136.689259][ T1170] ? __kthread_bind_mask+0xc0/0xc0 [ 1136.694367][ T1170] ? __kthread_bind_mask+0xc0/0xc0 [ 1136.699487][ T1170] ret_from_fork+0x1f/0x30 [ 1136.704090][ T1170] Sending NMI from CPU 1 to CPUs 0: [ 1136.709442][ C0] NMI backtrace for cpu 0 [ 1136.709450][ C0] CPU: 0 PID: 3905 Comm: systemd-journal Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1136.709457][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1136.709461][ C0] RIP: 0033:0x7ffc39794990 [ 1136.709473][ C0] Code: ff ff ff 7f 48 8d 05 0f b7 ff ff 48 8d 15 08 e7 ff ff 48 0f 44 c2 48 85 ff 48 8b 40 20 74 03 48 89 07 c3 0f 1f 80 00 00 00 00 <55> 48 89 e5 41 55 4c 63 ef 41 54 49 89 f4 48 83 ec 08 41 83 fd 0f [ 1136.709477][ C0] RSP: 002b:00007ffc397271d8 EFLAGS: 00000206 [ 1136.709497][ C0] RAX: 00007ffc39794990 RBX: 0000000000000000 RCX: 00000000000000cc [ 1136.709504][ C0] RDX: 00000000000003e7 RSI: 00007ffc39727200 RDI: 0000000000000000 [ 1136.709510][ C0] RBP: 00007ffc39727200 R08: 00005615fdccd3e5 R09: 0000000000000018 [ 1136.709516][ C0] R10: 0000000000000069 R11: 0000000000000246 R12: 000000000000014d [ 1136.709522][ C0] R13: 00000000000012bf R14: 0000000000000033 R15: 00007ffc397276f0 [ 1136.709527][ C0] FS: 00007fade38dd8c0 GS: 0000000000000000 [ 1136.849566][ T1170] Kernel panic - not syncing: hung_task: blocked tasks [ 1136.856449][ T1170] CPU: 0 PID: 1170 Comm: khungtaskd Not tainted 5.8.0-rc7-next-20200731-syzkaller #0 [ 1136.865897][ T1170] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 1136.875946][ T1170] Call Trace: [ 1136.879247][ T1170] dump_stack+0x18f/0x20d [ 1136.883586][ T1170] panic+0x2e3/0x75c [ 1136.887495][ T1170] ? __warn_printk+0xf3/0xf3 [ 1136.892114][ T1170] ? lapic_can_unplug_cpu.cold+0x38/0x38 [ 1136.897751][ T1170] ? preempt_schedule_thunk+0x16/0x18 [ 1136.903128][ T1170] ? watchdog.cold+0x22d/0x24b [ 1136.907893][ T1170] ? watchdog+0xc59/0xf30 [ 1136.912230][ T1170] watchdog.cold+0x23e/0x24b [ 1136.916832][ T1170] ? trace_sched_process_hang+0x2e0/0x2e0 [ 1136.922568][ T1170] kthread+0x3b5/0x4a0 [ 1136.926676][ T1170] ? __kthread_bind_mask+0xc0/0xc0 [ 1136.931798][ T1170] ? __kthread_bind_mask+0xc0/0xc0 [ 1136.936920][ T1170] ret_from_fork+0x1f/0x30 [ 1136.942600][ T1170] Kernel Offset: disabled [ 1136.946926][ T1170] Rebooting in 86400 seconds..