[ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 33.267101] audit: type=1400 audit(1589263171.367:8): avc: denied { execmem } for pid=6124 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.514255] IPVS: ftp: loaded support on port[0] = 21 [ 34.642848] can: request_module (can-proto-0) failed. [ 34.651297] can: request_module (can-proto-0) failed. [ 34.677059] audit: type=1400 audit(1589263172.778:9): avc: denied { create } for pid=6103 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 '10.128.0.245' (ECDSA) to the list of known hosts. 2020/05/12 05:59:40 parsed 1 programs 2020/05/12 05:59:40 executed programs: 0 [ 42.407040] audit: type=1400 audit(1589263180.501:10): avc: denied { execmem } for pid=6240 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 42.699630] IPVS: ftp: loaded support on port[0] = 21 [ 43.437917] IPVS: ftp: loaded support on port[0] = 21 [ 43.507641] chnl_net:caif_netlink_parms(): no params data found [ 43.550097] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.556795] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.564343] device bridge_slave_0 entered promiscuous mode [ 43.571310] IPVS: ftp: loaded support on port[0] = 21 [ 43.572321] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.582892] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.590201] device bridge_slave_1 entered promiscuous mode [ 43.645743] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.663035] chnl_net:caif_netlink_parms(): no params data found [ 43.677758] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.707666] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 43.718133] team0: Port device team_slave_0 added [ 43.725461] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 43.733692] team0: Port device team_slave_1 added [ 43.754975] IPVS: ftp: loaded support on port[0] = 21 [ 43.757323] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.768006] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.775532] device bridge_slave_0 entered promiscuous mode [ 43.781965] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 43.790259] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 43.801302] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.807665] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.815567] device bridge_slave_1 entered promiscuous mode [ 43.890534] device hsr_slave_0 entered promiscuous mode [ 43.928775] device hsr_slave_1 entered promiscuous mode [ 43.980205] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 43.987651] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.001825] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.010456] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 44.037155] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.045094] team0: Port device team_slave_0 added [ 44.052850] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.060022] team0: Port device team_slave_1 added [ 44.065355] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.122228] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.136315] chnl_net:caif_netlink_parms(): no params data found [ 44.200787] IPVS: ftp: loaded support on port[0] = 21 [ 44.211636] device hsr_slave_0 entered promiscuous mode [ 44.248744] device hsr_slave_1 entered promiscuous mode [ 44.299017] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.305454] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.312587] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.319052] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.333598] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 44.341285] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 44.388946] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.395538] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.402949] device bridge_slave_0 entered promiscuous mode [ 44.463179] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.469585] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.476176] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.482572] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.491786] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.499935] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.506801] device bridge_slave_1 entered promiscuous mode [ 44.522270] chnl_net:caif_netlink_parms(): no params data found [ 44.547686] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.557487] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.566250] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.574010] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.581749] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.590851] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.617629] IPVS: ftp: loaded support on port[0] = 21 [ 44.653122] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.661581] team0: Port device team_slave_0 added [ 44.670492] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.676837] bridge0: port 1(bridge_slave_0) entered disabled state [ 44.684557] device bridge_slave_0 entered promiscuous mode [ 44.721921] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.730614] team0: Port device team_slave_1 added [ 44.735993] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.744965] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.790358] device hsr_slave_0 entered promiscuous mode [ 44.838349] device hsr_slave_1 entered promiscuous mode [ 44.888448] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.894822] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.902163] device bridge_slave_1 entered promiscuous mode [ 44.936824] chnl_net:caif_netlink_parms(): no params data found [ 44.945898] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 44.954013] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.020044] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.027445] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.047798] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.054284] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.062503] device bridge_slave_0 entered promiscuous mode [ 45.070858] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.077202] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.086379] device bridge_slave_1 entered promiscuous mode [ 45.093874] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.112375] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.130501] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 45.137684] team0: Port device team_slave_0 added [ 45.152326] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 45.159977] team0: Port device team_slave_1 added [ 45.165523] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.177252] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.186111] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 45.195434] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 45.203452] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.224844] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.239518] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.246997] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.261104] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.290589] device hsr_slave_0 entered promiscuous mode [ 45.328936] device hsr_slave_1 entered promiscuous mode [ 45.424496] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.433840] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 45.441542] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 45.448713] team0: Port device team_slave_0 added [ 45.456999] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 45.467475] team0: Port device team_slave_1 added [ 45.474447] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.482739] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.489288] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.495548] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.511797] chnl_net:caif_netlink_parms(): no params data found [ 45.522059] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.529159] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.536486] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 45.544037] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 45.553420] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.560179] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.580821] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.589924] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.597596] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.605467] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.611903] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.624051] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.636061] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.651181] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.658564] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.666276] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.674842] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.681336] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.688975] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.696666] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.704319] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.710713] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.724143] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.780999] device hsr_slave_0 entered promiscuous mode [ 45.818033] device hsr_slave_1 entered promiscuous mode [ 45.878344] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 45.885553] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 45.898725] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.910227] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.919948] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.931689] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 45.940386] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.949400] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.956963] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.963614] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.971830] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.984648] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.991962] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.999125] device bridge_slave_0 entered promiscuous mode [ 46.005851] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.012540] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.020022] device bridge_slave_1 entered promiscuous mode [ 46.049762] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.061120] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 46.071767] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 46.080854] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.090543] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.100121] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 46.109407] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.124061] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 46.140492] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.149691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.156793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.164860] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.173295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.181272] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.189573] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.199919] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 46.205999] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.226466] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 46.234931] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 46.243388] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 46.251110] team0: Port device team_slave_0 added [ 46.257294] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.265253] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.272989] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.280894] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.288797] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.300009] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 46.308446] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 46.315701] team0: Port device team_slave_1 added [ 46.321480] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 46.330250] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.340825] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.347115] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.355186] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.362947] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.370781] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.378891] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.385257] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.393183] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 46.402689] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 46.422596] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 46.432550] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 46.439885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 46.446874] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.455223] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.463078] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 46.471097] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 46.478700] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.485044] bridge0: port 2(bridge_slave_1) entered forwarding state [ 46.492616] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 46.541651] device hsr_slave_0 entered promiscuous mode [ 46.578264] device hsr_slave_1 entered promiscuous mode [ 46.623252] 8021q: adding VLAN 0 to HW filter on device bond0 [ 46.630868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.640772] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.649251] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.657009] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.664859] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.673523] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 46.682270] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 46.691081] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 46.698916] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.704925] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.712931] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.720930] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 46.728992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.736419] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.744548] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 46.752336] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 46.760990] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 46.772965] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.779258] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.794144] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.801190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.809663] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.816452] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.824502] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.833531] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 46.842874] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.852056] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.863791] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.871692] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 46.880764] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.894918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.906544] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.915357] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.928654] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 46.936277] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.943119] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 46.951318] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 46.959662] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.966040] bridge0: port 1(bridge_slave_0) entered forwarding state [ 46.972932] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.980568] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.989721] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.012263] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.022059] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.029499] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 47.036541] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.043905] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.051712] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.059703] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.066048] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.073104] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 47.080946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 47.088662] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.095013] bridge0: port 1(bridge_slave_0) entered forwarding state [ 47.101926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 47.109720] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 47.117317] bridge0: port 2(bridge_slave_1) entered blocking state [ 47.123656] bridge0: port 2(bridge_slave_1) entered forwarding state [ 47.131455] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 47.144818] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 47.155794] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 47.172129] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 47.179757] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 47.187787] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.195543] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 47.204313] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 47.215520] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 47.223595] [ 47.225231] ====================================================== [ 47.231536] WARNING: possible circular locking dependency detected [ 47.237843] 4.14.180-syzkaller #0 Not tainted [ 47.242325] ------------------------------------------------------ [ 47.248634] kworker/u4:1/22 is trying to acquire lock: [ 47.253898] (sk_lock-AF_INET){+.+.}, at: [] strp_sock_lock+0x29/0x40 [ 47.262035] [ 47.262035] but task is already holding lock: [ 47.267995] ((&strp->work)){+.+.}, at: [] process_one_work+0x703/0x16c0 [ 47.276381] [ 47.276381] which lock already depends on the new lock. [ 47.276381] [ 47.285775] [ 47.285775] the existing dependency chain (in reverse order) is: [ 47.293390] [ 47.293390] -> #1 ((&strp->work)){+.+.}: [ 47.298917] lock_acquire+0x173/0x400 [ 47.303309] flush_work+0x9c/0x720 [ 47.307344] __cancel_work_timer+0x286/0x420 [ 47.312262] cancel_work_sync+0xb/0x10 [ 47.316644] strp_done+0x48/0xb0 [ 47.320553] kcm_ioctl+0x8c5/0x13c0 [ 47.324671] sock_do_ioctl+0x62/0xa0 [ 47.328876] sock_ioctl+0x251/0x430 [ 47.332994] do_vfs_ioctl+0x180/0xfb0 [ 47.337289] SyS_ioctl+0x74/0x80 [ 47.341173] do_syscall_64+0x1c7/0x5b0 [ 47.345559] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 47.351241] [ 47.351241] -> #0 (sk_lock-AF_INET){+.+.}: [ 47.356953] __lock_acquire+0x2e94/0x4500 [ 47.361595] lock_acquire+0x173/0x400 [ 47.365910] lock_sock_nested+0xb3/0x100 [ 47.370463] strp_sock_lock+0x29/0x40 [ 47.374772] strp_work+0x3c/0xd0 [ 47.378655] process_one_work+0x79e/0x16c0 [ 47.383475] worker_thread+0xcc/0xee0 [ 47.387795] kthread+0x338/0x400 [ 47.391671] ret_from_fork+0x24/0x30 [ 47.395892] [ 47.395892] other info that might help us debug this: [ 47.395892] [ 47.404075] Possible unsafe locking scenario: [ 47.404075] [ 47.410121] CPU0 CPU1 [ 47.414763] ---- ---- [ 47.419402] lock((&strp->work)); [ 47.422914] lock(sk_lock-AF_INET); [ 47.429118] lock((&strp->work)); [ 47.435148] lock(sk_lock-AF_INET); [ 47.438833] [ 47.438833] *** DEADLOCK *** [ 47.438833] [ 47.444968] 2 locks held by kworker/u4:1/22: [ 47.449346] #0: ("%s""kstrp"){+.+.}, at: [] process_one_work+0x6cd/0x16c0 [ 47.458091] #1: ((&strp->work)){+.+.}, at: [] process_one_work+0x703/0x16c0 [ 47.466916] [ 47.466916] stack backtrace: [ 47.471388] CPU: 1 PID: 22 Comm: kworker/u4:1 Not tainted 4.14.180-syzkaller #0 [ 47.478832] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.488171] Workqueue: kstrp strp_work [ 47.492050] Call Trace: [ 47.494616] dump_stack+0xf7/0x13b [ 47.498154] print_circular_bug.isra.40.cold.67+0x1bd/0x27d [ 47.503851] ? save_trace+0xe0/0x290 [ 47.507560] __lock_acquire+0x2e94/0x4500 [ 47.511746] ? _raw_spin_unlock_irq+0x60/0x80 [ 47.516234] ? trace_hardirqs_on+0x10/0x10 [ 47.520451] ? trace_hardirqs_off+0x10/0x10 [ 47.524751] ? find_held_lock+0x36/0x1d0 [ 47.528789] lock_acquire+0x173/0x400 [ 47.532585] ? strp_sock_lock+0x29/0x40 [ 47.539590] lock_sock_nested+0xb3/0x100 [ 47.543624] ? strp_sock_lock+0x29/0x40 [ 47.547574] strp_sock_lock+0x29/0x40 [ 47.551347] strp_work+0x3c/0xd0 [ 47.554702] process_one_work+0x79e/0x16c0 [ 47.558936] ? pwq_dec_nr_in_flight+0x2b0/0x2b0 [ 47.563600] worker_thread+0xcc/0xee0 [ 47.567397] kthread+0x338/0x400 [ 47.570844] ? process_one_work+0x16c0/0x16c0 [ 47.575351] ? kthread_create_on_node+0xa0/0xa0 [ 47.579998] ret_from_fork+0x24/0x30 2020/05/12 05:59:45 executed programs: 6 [ 47.590164] 8021q: adding VLAN 0 to HW filter on device bond0 [ 47.599597] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 47.606833] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 47.615979] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 47.626446] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 47.634601] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 47.643262] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.654455] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 47.662384] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 47.673100] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 47.680079] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 47.693650] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 47.701983] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 47.711856] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 47.720954] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 47.728787] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 47.736591] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.744347] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 47.752318] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.760506] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 47.787269] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.796588] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 47.812394] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 47.823001] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 47.831320] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 47.850941] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.859337] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 47.879932] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 47.893142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 47.900816] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 47.910325] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 47.919469] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 47.930604] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.938237] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 47.947635] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 47.954934] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 47.962230] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 47.970168] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 47.977650] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 47.985187] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 47.993130] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 48.000617] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.009962] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.015942] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.023932] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 48.037820] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 48.045660] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 48.053142] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.060674] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 48.068834] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.076290] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.082649] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.089695] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 48.099151] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.105168] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.116645] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 48.126018] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.132605] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 48.140924] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.148510] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.154853] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.164335] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.172622] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.179833] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.190468] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 48.200165] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.213747] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.222489] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.231503] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 48.240426] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.250009] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 48.258949] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 48.269647] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 48.278177] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.285860] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 48.293647] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.301572] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.309640] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 48.319295] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 48.326875] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.335959] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 48.344167] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.354734] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.360955] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.369426] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 48.376769] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.388179] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.403224] 8021q: adding VLAN 0 to HW filter on device batadv0 2020/05/12 05:59:50 executed programs: 399