forked to background, child pid 3174 no interfa[ 20.121275][ T3175] 8021q: adding VLAN 0 to HW filter on device bond0 ces have a carrier [ 20.132945][ T3175] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.108' (ECDSA) to the list of known hosts. 2022/03/30 03:59:00 fuzzer started 2022/03/30 03:59:01 connecting to host at 10.128.0.169:45437 2022/03/30 03:59:01 checking machine... 2022/03/30 03:59:01 checking revisions... 2022/03/30 03:59:01 testing simple program... syzkaller login: [ 35.472803][ T3595] cgroup: Unknown subsys name 'net' [ 35.580049][ T3595] cgroup: Unknown subsys name 'rlimit' [ 36.748966][ T3598] Bluetooth: hci0: unexpected cc 0x0c03 length: 249 > 1 [ 36.756135][ T3598] Bluetooth: hci0: unexpected cc 0x1003 length: 249 > 9 [ 36.763332][ T3598] Bluetooth: hci0: unexpected cc 0x1001 length: 249 > 9 [ 36.770849][ T3598] Bluetooth: hci0: unexpected cc 0x0c23 length: 249 > 4 [ 36.778371][ T3598] Bluetooth: hci0: unexpected cc 0x0c25 length: 249 > 3 [ 36.785495][ T3598] Bluetooth: hci0: unexpected cc 0x0c38 length: 249 > 2 [ 36.837093][ T3597] chnl_net:caif_netlink_parms(): no params data found [ 36.865748][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 36.872889][ T3597] bridge0: port 1(bridge_slave_0) entered disabled state [ 36.880599][ T3597] device bridge_slave_0 entered promiscuous mode [ 36.888236][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 36.895299][ T3597] bridge0: port 2(bridge_slave_1) entered disabled state [ 36.903006][ T3597] device bridge_slave_1 entered promiscuous mode [ 36.917916][ T3597] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 36.928272][ T3597] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 36.945047][ T3597] team0: Port device team_slave_0 added [ 36.951701][ T3597] team0: Port device team_slave_1 added [ 36.964636][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 36.971772][ T3597] 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. [ 36.997677][ T3597] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 37.009101][ T3597] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 37.016029][ T3597] 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. [ 37.042002][ T3597] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 37.062697][ T3597] device hsr_slave_0 entered promiscuous mode [ 37.069246][ T3597] device hsr_slave_1 entered promiscuous mode [ 37.116177][ T3597] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 37.124561][ T3597] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 37.132858][ T3597] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 37.141803][ T3597] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 37.155830][ T3597] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.162906][ T3597] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.170217][ T3597] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.177300][ T3597] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.204958][ T3597] 8021q: adding VLAN 0 to HW filter on device bond0 [ 37.215435][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 37.225060][ T141] bridge0: port 1(bridge_slave_0) entered disabled state [ 37.232833][ T141] bridge0: port 2(bridge_slave_1) entered disabled state [ 37.240744][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 37.250822][ T3597] 8021q: adding VLAN 0 to HW filter on device team0 [ 37.259851][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 37.268512][ T141] bridge0: port 1(bridge_slave_0) entered blocking state [ 37.275552][ T141] bridge0: port 1(bridge_slave_0) entered forwarding state [ 37.294870][ T3597] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 37.305597][ T3597] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 37.318234][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 37.327900][ T141] bridge0: port 2(bridge_slave_1) entered blocking state [ 37.334936][ T141] bridge0: port 2(bridge_slave_1) entered forwarding state [ 37.342795][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 37.351104][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 37.359514][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 37.367697][ T141] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 37.382159][ T3597] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 37.389258][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 37.396863][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 37.404278][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 37.411940][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 37.478586][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 37.493860][ T3597] device veth0_vlan entered promiscuous mode [ 37.500948][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 37.509121][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 37.516858][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 37.528036][ T3597] device veth1_vlan entered promiscuous mode [ 37.541402][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 37.549481][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 37.557628][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 37.567354][ T3597] device veth0_macvtap entered promiscuous mode [ 37.575113][ T3597] device veth1_macvtap entered promiscuous mode [ 37.587688][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 37.594984][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 37.604232][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 37.614143][ T3597] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 37.621817][ T3608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 37.632552][ T3597] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 37.641708][ T3597] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 37.651071][ T3597] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 37.660291][ T3597] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 37.689294][ T91] wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 37.702118][ T91] wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 37.709483][ T1040] wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 [ 37.709835][ T2861] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 37.718125][ T1040] wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 [ 37.733249][ T3607] IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready [ 37.780045][ T91] netdevsim netdevsim0 netdevsim3 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 executing program [ 40.608641][ T91] netdevsim netdevsim0 netdevsim2 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 2022/03/30 03:59:06 BUG: program execution failed: executor 0: failed to write control pipe: write |1: broken pipe SYZFAIL: control pipe write failed (errno 9: Bad file descriptor) loop exited with status 67 [ 40.806910][ T3597] syz-executor.0 (3597) used greatest stack depth: 19992 bytes left