[ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 41.115616][ T28] audit: type=1400 audit(1622769011.331:8): avc: denied { execmem } for pid=5992 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 41.890798][ T5991] can: request_module (can-proto-0) failed. [ 43.028695][ T5991] can: request_module (can-proto-0) failed. [ 43.048479][ T5991] can: request_module (can-proto-0) failed. [ 43.100723][ T28] audit: type=1400 audit(1622769013.312:9): avc: denied { create } for pid=5982 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1 Warning: Permanently added '10.128.0.63' (ECDSA) to the list of known hosts. 2021/06/04 01:10:20 parsed 1 programs 2021/06/04 01:10:20 executed programs: 0 [ 50.334137][ T28] audit: type=1400 audit(1622769020.556:10): avc: denied { execmem } for pid=6092 comm="syz-executor.1" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 50.779719][ T6094] chnl_net:caif_netlink_parms(): no params data found [ 50.849464][ T6101] chnl_net:caif_netlink_parms(): no params data found [ 50.924517][ T6099] chnl_net:caif_netlink_parms(): no params data found [ 50.965296][ T6108] chnl_net:caif_netlink_parms(): no params data found [ 51.102322][ T6094] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.111165][ T6094] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.129286][ T6094] device bridge_slave_0 entered promiscuous mode [ 51.196358][ T6094] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.210531][ T6094] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.221682][ T6094] device bridge_slave_1 entered promiscuous mode [ 51.234733][ T6101] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.248331][ T6101] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.258976][ T6101] device bridge_slave_0 entered promiscuous mode [ 51.286249][ T6101] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.294503][ T6101] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.304781][ T6101] device bridge_slave_1 entered promiscuous mode [ 51.401801][ T6101] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.419606][ T6101] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.433635][ T6105] chnl_net:caif_netlink_parms(): no params data found [ 51.451779][ T6099] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.464730][ T6099] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.477315][ T6099] device bridge_slave_0 entered promiscuous mode [ 51.490823][ T6094] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.509759][ T6108] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.520100][ T6108] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.534865][ T6108] device bridge_slave_0 entered promiscuous mode [ 51.554923][ T6108] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.569537][ T6108] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.581568][ T6108] device bridge_slave_1 entered promiscuous mode [ 51.596987][ T6099] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.608101][ T6099] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.618829][ T6099] device bridge_slave_1 entered promiscuous mode [ 51.628139][ T6094] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.655931][ T6101] team0: Port device team_slave_0 added [ 51.670620][ T6101] team0: Port device team_slave_1 added [ 51.683081][ T6095] chnl_net:caif_netlink_parms(): no params data found [ 51.733090][ T6108] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.751159][ T6108] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.778200][ T6099] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.795637][ T6094] team0: Port device team_slave_0 added [ 51.809936][ T6094] team0: Port device team_slave_1 added [ 51.829809][ T6101] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 51.838496][ T6101] 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. [ 51.870413][ T6101] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 51.884884][ T6099] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.939878][ T6101] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 51.951754][ T6101] 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. [ 51.980968][ T6101] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 51.996125][ T6108] team0: Port device team_slave_0 added [ 52.044658][ T6108] team0: Port device team_slave_1 added [ 52.052346][ T6099] team0: Port device team_slave_0 added [ 52.059572][ T6094] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.068200][ T6094] 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. [ 52.096239][ T6094] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.115742][ T6105] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.124220][ T6105] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.135455][ T6105] device bridge_slave_0 entered promiscuous mode [ 52.150761][ T6099] team0: Port device team_slave_1 added [ 52.168257][ T6094] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.178043][ T6094] 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. [ 52.205287][ T6094] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.216567][ T6105] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.224769][ T6105] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.233209][ T6105] device bridge_slave_1 entered promiscuous mode [ 52.314592][ T6101] device hsr_slave_0 entered promiscuous mode [ 52.353194][ T6101] device hsr_slave_1 entered promiscuous mode [ 52.413885][ T6108] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.420932][ T6108] 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. [ 52.448333][ T6108] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.460547][ T6095] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.468716][ T6095] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.478300][ T6095] device bridge_slave_0 entered promiscuous mode [ 52.491886][ T6099] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 52.499915][ T6099] 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. [ 52.526851][ T6099] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 52.555869][ T6108] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.566590][ T6108] 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. [ 52.601351][ T6108] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.627584][ T6095] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.634882][ T6095] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.643527][ T6095] device bridge_slave_1 entered promiscuous mode [ 52.651854][ T6105] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.661992][ T6099] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 52.670403][ T6099] 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. [ 52.698215][ T6099] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 52.764233][ T6094] device hsr_slave_0 entered promiscuous mode [ 52.812740][ T6094] device hsr_slave_1 entered promiscuous mode [ 52.872361][ T6094] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 52.880755][ T6094] Cannot create hsr debugfs directory [ 52.925390][ T6108] device hsr_slave_0 entered promiscuous mode [ 52.982512][ T6108] device hsr_slave_1 entered promiscuous mode [ 53.032347][ T6108] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 53.040624][ T6108] Cannot create hsr debugfs directory [ 53.065614][ T6105] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.149055][ T6095] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 53.170880][ T6105] team0: Port device team_slave_0 added [ 53.216762][ T6095] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 53.230396][ T6105] team0: Port device team_slave_1 added [ 53.305353][ T6099] device hsr_slave_0 entered promiscuous mode [ 53.362872][ T6099] device hsr_slave_1 entered promiscuous mode [ 53.402209][ T6099] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 53.411328][ T6099] Cannot create hsr debugfs directory [ 53.469958][ T6095] team0: Port device team_slave_0 added [ 53.498066][ T6105] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.507506][ T6105] 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. [ 53.543409][ T6105] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.557345][ T6095] team0: Port device team_slave_1 added [ 53.586434][ T6105] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.599194][ T6105] 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. [ 53.629203][ T6105] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.701822][ T6095] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 53.713178][ T6095] 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. [ 53.747439][ T6095] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 53.762434][ T6095] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 53.769873][ T6095] 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. [ 53.804523][ T6095] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 53.907292][ T6105] device hsr_slave_0 entered promiscuous mode [ 53.953628][ T6105] device hsr_slave_1 entered promiscuous mode [ 53.992290][ T6105] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.004681][ T6105] Cannot create hsr debugfs directory [ 54.123894][ T6095] device hsr_slave_0 entered promiscuous mode [ 54.172476][ T6095] device hsr_slave_1 entered promiscuous mode [ 54.222027][ T6095] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 54.230580][ T6095] Cannot create hsr debugfs directory [ 54.337497][ T6101] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 54.378520][ T6101] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 54.437255][ T6101] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 54.508599][ T6101] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 54.610825][ T6108] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 54.676191][ T6108] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 54.746730][ T6108] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 54.794349][ T6108] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 54.937260][ T6094] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 54.982845][ T6094] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 55.033904][ T6094] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 55.096805][ T6101] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.104068][ T6094] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 55.176880][ T6099] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 55.251159][ T6101] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.280381][ T6108] 8021q: adding VLAN 0 to HW filter on device bond0 [ 55.290996][ T6099] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 55.333662][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.343933][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.353016][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.362662][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.372731][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.380427][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.417350][ T6099] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 55.463683][ T6099] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 55.514908][ T2637] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 55.527167][ T2637] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 55.542705][ T2637] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 55.554074][ T2637] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.562844][ T2637] bridge0: port 2(bridge_slave_1) entered forwarding state [ 55.573547][ T2637] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 55.582380][ T2637] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 55.604766][ T6108] 8021q: adding VLAN 0 to HW filter on device team0 [ 55.623361][ T6105] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 55.654302][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 55.669426][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 55.679625][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 55.688817][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 55.697572][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.705766][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.714108][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 55.725956][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 55.741659][ T6101] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 55.755416][ T6101] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 55.781465][ T6105] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 55.854590][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 55.863499][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 55.873954][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 55.883374][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 55.893052][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 55.901893][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.909018][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 55.955087][ T6105] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 56.003084][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 56.012847][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.022330][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.032921][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.040970][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.049824][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.059080][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.069083][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.078869][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.097318][ T6108] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 56.112601][ T6108] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 56.131920][ T6095] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 56.164676][ T6105] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 56.224631][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.232691][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.243249][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.252319][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 56.260554][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 56.271491][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 56.279769][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 56.290557][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 56.318780][ T6094] 8021q: adding VLAN 0 to HW filter on device bond0 [ 56.326174][ T6095] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 56.354940][ T6095] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 56.425446][ T6095] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 56.509087][ T6108] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.519037][ T7336] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.527385][ T7336] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.556044][ T6094] 8021q: adding VLAN 0 to HW filter on device team0 [ 56.573244][ T1311] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.581022][ T1311] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.589818][ T1311] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 56.598452][ T1311] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 56.609842][ T6101] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 56.647733][ T1311] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 56.666440][ T1311] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 56.704807][ T6108] device veth0_vlan entered promiscuous mode [ 56.713827][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 56.728041][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 56.738488][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.745983][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 56.759587][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 56.773296][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 56.785672][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.793685][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 56.803232][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 56.812321][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 56.822083][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 56.832188][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 56.842389][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 56.851944][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 56.861834][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 56.899090][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 56.910699][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 56.920967][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 56.931471][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 56.942108][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 56.964998][ T6108] device veth1_vlan entered promiscuous mode [ 56.993219][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.002787][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.017195][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.025967][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.059470][ T6094] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.070786][ T6094] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.098640][ T6108] device veth0_macvtap entered promiscuous mode [ 57.109146][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.118356][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.126942][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.136064][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.146513][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.155723][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.164870][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 57.174127][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 57.183975][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.191954][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.199926][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 57.208170][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 57.224006][ T6101] device veth0_vlan entered promiscuous mode [ 57.252869][ T6108] device veth1_macvtap entered promiscuous mode [ 57.271371][ T7339] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 57.279837][ T7339] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 57.289594][ T7339] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 57.302849][ T6095] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.318852][ T6094] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 57.333115][ T6101] device veth1_vlan entered promiscuous mode [ 57.370253][ T6095] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.399336][ T6108] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 57.414367][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 57.424099][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 57.435051][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.445003][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.455562][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.464921][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.474599][ T2615] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.481919][ T2615] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.489541][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.498496][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.507245][ T2615] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.514534][ T2615] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.522408][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 57.532417][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 57.541363][ T2615] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 57.564426][ T6099] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.575281][ T6105] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.588226][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 57.600975][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 57.609801][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 57.618785][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 57.672497][ T6108] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 57.683751][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 57.693603][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 57.702402][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 57.710685][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 57.721794][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 57.730792][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 57.739932][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 57.750324][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 57.767027][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 57.776880][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 57.786120][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 57.810365][ T6095] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 57.821683][ T6095] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 57.839817][ T6105] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.850121][ T6094] device veth0_vlan entered promiscuous mode [ 57.858988][ T6108] netdevsim netdevsim2 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.872363][ T6108] netdevsim netdevsim2 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.883843][ T6108] netdevsim netdevsim2 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.893850][ T6108] netdevsim netdevsim2 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 57.908813][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 57.919679][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 57.929606][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 57.939511][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 57.949373][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.959020][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.973872][ T6101] device veth0_macvtap entered promiscuous mode [ 57.987056][ T6101] device veth1_macvtap entered promiscuous mode [ 58.066184][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 58.076672][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.087397][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.097600][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 58.106374][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.115821][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.125473][ T7353] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.132781][ T7353] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.141816][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.149879][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.168263][ T6099] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.184839][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 58.194295][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.203855][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.214361][ T7353] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.225436][ T7353] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.232833][ T7353] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.244459][ T6094] device veth1_vlan entered promiscuous mode [ 58.278117][ T6101] batman_adv: The newly added mac address (aa:aa:aa:aa:aa:3d) already exists on: batadv_slave_0 [ 58.290800][ T6101] batman_adv: It is strongly recommended to keep mac addresses unique to avoid problems! [ 58.305172][ T6101] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 58.415207][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 58.441488][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 58.449740][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 58.459173][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 58.468999][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.478149][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.487019][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 58.497162][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 58.506598][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.515601][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.533621][ T7362] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.540778][ T7362] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.576918][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.590405][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.600146][ T7362] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.607591][ T7362] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.630970][ T7362] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.655619][ T6094] device veth0_macvtap entered promiscuous mode [ 163.700647][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 163.710440][ C1] rcu: 0-...!: (0 ticks this GP) idle=736/1/0x4000000000000000 softirq=8444/8444 fqs=0 [ 163.722410][ C1] (detected by 1, t=10502 jiffies, g=7133, q=4128) [ 163.729110][ C1] [ 163.731926][ C1] ============================================ [ 163.738685][ C1] WARNING: possible recursive locking detected [ 163.745011][ C1] 5.13.0-rc4-syzkaller #0 Not tainted [ 163.751087][ C1] -------------------------------------------- [ 163.758790][ C1] swapper/1/0 is trying to acquire lock: [ 163.765542][ C1] ffffffff894cc258 (rcu_node_0){-.-.}-{2:2}, at: rcu_dump_cpu_stacks+0xbb/0x360 [ 163.775432][ C1] [ 163.775432][ C1] but task is already holding lock: [ 163.786964][ C1] ffffffff894cc258 (rcu_node_0){-.-.}-{2:2}, at: rcu_sched_clock_irq+0xc3c/0x1f30 [ 163.801510][ C1] [ 163.801510][ C1] other info that might help us debug this: [ 163.815532][ C1] Possible unsafe locking scenario: [ 163.815532][ C1] [ 163.829015][ C1] CPU0 [ 163.834248][ C1] ---- [ 163.840725][ C1] lock(rcu_node_0); [ 163.845863][ C1] lock(rcu_node_0); [ 163.850904][ C1] [ 163.850904][ C1] *** DEADLOCK *** [ 163.850904][ C1] [ 163.862657][ C1] May be due to missing lock nesting notation [ 163.862657][ C1] [ 163.874840][ C1] 1 lock held by swapper/1/0: [ 163.880460][ C1] #0: ffffffff894cc258 (rcu_node_0){-.-.}-{2:2}, at: rcu_sched_clock_irq+0xc3c/0x1f30 [ 163.892925][ C1] [ 163.892925][ C1] stack backtrace: [ 163.899541][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.13.0-rc4-syzkaller #0 [ 163.908819][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 163.925188][ C1] Call Trace: [ 163.929868][ C1] [ 163.933707][ C1] dump_stack+0x10c/0x14b [ 163.939211][ C1] __lock_acquire.cold+0x227/0x3a6 [ 163.945658][ C1] ? devkmsg_read+0x900/0x900 [ 163.951408][ C1] ? lockdep_hardirqs_on_prepare+0x450/0x450 [ 163.958044][ C1] ? lock_release+0x7e0/0x7e0 [ 163.963743][ C1] lock_acquire+0x212/0x850 [ 163.969967][ C1] ? rcu_dump_cpu_stacks+0xbb/0x360 [ 163.976064][ C1] ? lock_release+0x7e0/0x7e0 [ 163.981159][ C1] ? irq_work_queue+0xb/0x50 [ 163.986447][ C1] ? wake_up_klogd.part.0+0x6d/0xa0 [ 163.992639][ C1] ? vprintk_emit+0xfe/0x4c0 [ 163.998572][ C1] _raw_spin_lock_irqsave+0x94/0xd0 [ 164.005531][ C1] ? rcu_dump_cpu_stacks+0xbb/0x360 [ 164.011825][ C1] rcu_dump_cpu_stacks+0xbb/0x360 [ 164.017865][ C1] rcu_sched_clock_irq+0x1b28/0x1f30 [ 164.024780][ C1] ? rcutree_dead_cpu+0x20/0x20 [ 164.030984][ C1] ? memcpy+0x39/0x60 [ 164.035332][ C1] ? do_raw_spin_unlock+0x171/0x230 [ 164.040696][ C1] ? lock_is_held_type+0xd9/0x130 [ 164.047722][ C1] update_process_times+0x131/0x1a0 [ 164.054125][ C1] tick_sched_handle+0x6f/0x130 [ 164.060849][ C1] tick_sched_timer+0x132/0x210 [ 164.066840][ C1] ? get_cpu_iowait_time_us+0x310/0x310 [ 164.073346][ C1] __hrtimer_run_queues+0x19e/0xb90 [ 164.079238][ C1] ? hrtimer_sleeper_start_expires+0x80/0x80 [ 164.085717][ C1] ? ktime_get_update_offsets_now+0x87/0x220 [ 164.092158][ C1] hrtimer_interrupt+0x2ef/0x900 [ 164.097385][ C1] __sysvec_apic_timer_interrupt+0x13e/0x520 [ 164.103459][ C1] sysvec_apic_timer_interrupt+0x8e/0xc0 [ 164.109710][ C1] [ 164.112818][ C1] asm_sysvec_apic_timer_interrupt+0x12/0x20 [ 164.119420][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 164.126026][ C1] Code: e8 27 a7 2e fa e9 e4 fe ff ff 48 89 df e8 1a a7 2e fa eb 9c cc cc cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d e4 f9 50 00 fb f4 90 e9 07 00 00 00 0f 00 2d d4 f9 50 00 f4 c3 cc cc 55 53 e8 89 [ 164.148610][ C1] RSP: 0018:ffffc9000010fd98 EFLAGS: 00000282 [ 164.155713][ C1] RAX: 1ffffffff126e861 RBX: ffff8881048fc065 RCX: 1ffffffff1487bb1 [ 164.165073][ C1] RDX: dffffc0000000000 RSI: ffffffff87cb42c0 RDI: ffffffff881346a0 [ 164.174074][ C1] RBP: ffff8881008523c0 R08: 0000000000000001 R09: 0000000000000001 [ 164.183476][ C1] R10: ffffed102010a478 R11: 0000000000000001 R12: 0000000000000001 [ 164.192465][ C1] R13: ffffffff89a8bdc0 R14: ffff8881048fc064 R15: ffff888107daa004 [ 164.200787][ C1] acpi_idle_do_entry+0x189/0x290 [ 164.206414][ C1] acpi_idle_enter+0x2d4/0x4a0 [ 164.211329][ C1] ? rcu_preempt_deferred_qs+0x13/0x160 [ 164.216970][ C1] cpuidle_enter_state+0x145/0x990 [ 164.222148][ C1] cpuidle_enter+0x45/0xa0 [ 164.226836][ C1] do_idle+0x497/0x730 [ 164.231529][ C1] ? arch_cpu_idle_exit+0x70/0x70 [ 164.236969][ C1] ? do_idle+0x3e5/0x730 [ 164.241255][ C1] cpu_startup_entry+0x14/0x20 [ 164.247712][ C1] secondary_startup_64_no_verify+0xb0/0xbb