Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 31.224012] audit: type=1400 audit(1585724938.372:8): avc: denied { execmem } for pid=6415 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 31.240037] IPVS: ftp: loaded support on port[0] = 21 [ 31.661224] can: request_module (can-proto-0) failed. [ 32.699637] can: request_module (can-proto-0) failed. [ 32.708283] can: request_module (can-proto-0) failed. [ 32.735586] audit: type=1400 audit(1585724939.883:9): avc: denied { create } for pid=6394 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 '10.128.1.48' (ECDSA) to the list of known hosts. 2020/04/01 07:09:07 parsed 1 programs 2020/04/01 07:09:07 executed programs: 0 [ 40.648827] audit: type=1400 audit(1585724947.808:10): avc: denied { execmem } for pid=6545 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 40.734228] IPVS: ftp: loaded support on port[0] = 21 [ 40.734230] IPVS: ftp: loaded support on port[0] = 21 [ 40.754624] IPVS: ftp: loaded support on port[0] = 21 [ 40.869608] IPVS: ftp: loaded support on port[0] = 21 [ 40.882547] IPVS: ftp: loaded support on port[0] = 21 [ 40.910731] IPVS: ftp: loaded support on port[0] = 21 [ 40.945136] chnl_net:caif_netlink_parms(): no params data found [ 41.114528] chnl_net:caif_netlink_parms(): no params data found [ 41.130271] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.139095] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.148770] device bridge_slave_0 entered promiscuous mode [ 41.160946] chnl_net:caif_netlink_parms(): no params data found [ 41.217600] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.224225] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.239917] device bridge_slave_1 entered promiscuous mode [ 41.259737] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.313695] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.326387] chnl_net:caif_netlink_parms(): no params data found [ 41.386486] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.393230] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.401095] device bridge_slave_0 entered promiscuous mode [ 41.412942] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.419644] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.427144] device bridge_slave_1 entered promiscuous mode [ 41.433684] chnl_net:caif_netlink_parms(): no params data found [ 41.467667] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.474173] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.487199] device bridge_slave_0 entered promiscuous mode [ 41.497689] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.504234] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.513809] device bridge_slave_1 entered promiscuous mode [ 41.522124] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.530795] team0: Port device team_slave_0 added [ 41.538751] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.547047] team0: Port device team_slave_1 added [ 41.554873] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.601812] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.609737] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.616807] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.624616] device bridge_slave_0 entered promiscuous mode [ 41.638645] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.647834] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.658754] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.687589] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.694159] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.702417] device bridge_slave_1 entered promiscuous mode [ 41.709851] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 41.730464] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.739645] team0: Port device team_slave_0 added [ 41.745706] bridge0: port 1(bridge_slave_0) entered blocking state [ 41.752154] bridge0: port 1(bridge_slave_0) entered disabled state [ 41.759652] device bridge_slave_0 entered promiscuous mode [ 41.767412] bridge0: port 2(bridge_slave_1) entered blocking state [ 41.773904] bridge0: port 2(bridge_slave_1) entered disabled state [ 41.781440] device bridge_slave_1 entered promiscuous mode [ 41.802416] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 41.811021] team0: Port device team_slave_0 added [ 41.818375] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.826592] team0: Port device team_slave_1 added [ 41.841863] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 41.854313] chnl_net:caif_netlink_parms(): no params data found [ 41.897389] device hsr_slave_0 entered promiscuous mode [ 41.955761] device hsr_slave_1 entered promiscuous mode [ 42.005612] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 42.013013] team0: Port device team_slave_1 added [ 42.019366] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.027365] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.034519] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.043477] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.056503] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.071375] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 42.079834] team0: Port device team_slave_0 added [ 42.090100] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.098072] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.111299] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.123426] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 42.132334] team0: Port device team_slave_1 added [ 42.138806] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.146805] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.153813] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.217531] device hsr_slave_0 entered promiscuous mode [ 42.245411] device hsr_slave_1 entered promiscuous mode [ 42.288914] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.357935] device hsr_slave_0 entered promiscuous mode [ 42.396223] device hsr_slave_1 entered promiscuous mode [ 42.435547] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.442835] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.486709] device hsr_slave_0 entered promiscuous mode [ 42.535399] device hsr_slave_1 entered promiscuous mode [ 42.585712] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 42.592744] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 42.600774] team0: Port device team_slave_0 added [ 42.616436] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.628485] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 42.638817] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.647184] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.654285] device bridge_slave_0 entered promiscuous mode [ 42.664533] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 42.672341] team0: Port device team_slave_1 added [ 42.681740] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.693734] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.700846] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.708217] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.715668] device bridge_slave_1 entered promiscuous mode [ 42.727006] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.740793] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 42.766063] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.780124] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 42.802004] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 42.810557] team0: Port device team_slave_0 added [ 42.821963] 8021q: adding VLAN 0 to HW filter on device bond0 [ 42.841133] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.851821] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 42.860136] team0: Port device team_slave_1 added [ 42.868332] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 42.876446] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 42.883026] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 42.938287] device hsr_slave_0 entered promiscuous mode [ 42.975260] device hsr_slave_1 entered promiscuous mode [ 43.016557] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 43.023907] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 43.087023] device hsr_slave_0 entered promiscuous mode [ 43.125057] device hsr_slave_1 entered promiscuous mode [ 43.169697] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 43.179213] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 43.187515] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 43.194514] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.202794] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.211744] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 43.239806] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 43.247324] 8021q: adding VLAN 0 to HW filter on device team0 [ 43.266783] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.275512] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 43.287340] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 43.296672] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 43.303189] 8021q: adding VLAN 0 to HW filter on device team0 [ 43.313094] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.325304] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.332640] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.341768] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 43.350429] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.359134] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.366011] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.374043] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.390700] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 43.407494] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.420944] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 43.430054] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 43.441075] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.448338] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.456898] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 43.466664] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.475930] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.482986] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.493634] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 43.508115] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 43.516670] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 43.524401] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.534213] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 43.546175] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 43.566391] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 43.575450] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 43.583795] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 43.593168] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 43.601400] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.608263] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.615946] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 43.624195] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 43.637376] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.655821] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 43.666930] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 43.676418] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 43.686046] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 43.693523] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 43.702027] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 43.716877] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.726092] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 43.733026] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 43.742372] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 43.755345] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 43.765877] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 43.773950] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 43.784705] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 43.792589] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 43.803047] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 43.811092] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 43.819194] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 43.827197] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 43.838341] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 43.847411] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 43.857845] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 43.867107] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 43.876749] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 43.889976] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.899318] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 43.907116] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 43.916121] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 43.923878] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 43.931598] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 43.939294] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 43.949032] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 43.957880] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 43.966939] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 43.973140] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 43.982744] 8021q: adding VLAN 0 to HW filter on device bond0 [ 43.991413] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 43.999317] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.007081] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.015327] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.023130] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.030746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.039821] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 44.046779] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 44.056901] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.063337] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.085333] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 44.093967] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.107012] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 44.116615] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.126348] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 44.139281] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.145999] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.154114] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.163839] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.171678] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.179407] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 44.186257] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 44.193854] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 44.203229] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 44.211212] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.220387] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 44.230937] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 44.240642] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.249669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.256827] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.265936] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.275599] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.286112] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.292645] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.302591] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 44.310020] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 44.317826] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.326430] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.334923] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.341635] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.350845] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.358525] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.370346] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.381821] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 44.392846] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 44.402242] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.412461] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.429075] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 44.438003] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 44.448369] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.457023] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.468476] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.476270] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.485660] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.493665] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.502535] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.509308] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.517175] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 44.525827] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.532704] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.540355] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 44.550648] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.564993] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 44.573941] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.583406] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.593537] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.600183] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.608620] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 44.619787] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 44.630494] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 44.640965] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 44.652110] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 44.661757] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 44.670728] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.679608] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 44.688604] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.698053] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 44.709988] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.717046] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.725456] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 44.733250] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 44.745473] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 44.762651] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 44.772499] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 44.780634] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 44.793767] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 44.803365] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 44.811533] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 44.821908] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 44.840529] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 44.851634] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 44.862310] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.876925] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.889347] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 44.902855] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.918097] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 44.933360] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 44.943729] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 44.952637] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.960521] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.970713] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.981910] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.988596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.997042] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.005255] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.013178] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.019624] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.027458] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.034911] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.042074] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.051516] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.067037] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.089541] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.098204] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.117129] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.125750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.141384] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 45.171306] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.178962] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.189695] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.200146] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.208900] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.229830] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.251052] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 45.263076] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 45.273049] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 45.295357] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.301925] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.311138] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.325052] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.332588] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.341384] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.353630] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 45.365640] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 45.387337] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.399427] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.407795] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 45.418635] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 45.428184] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 45.440439] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 45.449857] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.457288] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.467570] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 45.475918] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.483751] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.494821] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.518606] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.525201] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.532172] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.543231] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.550973] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.561187] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.572658] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.584034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.591730] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.602604] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 45.611280] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 45.622261] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.630755] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.639442] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.648766] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 45.657205] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 45.667965] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.674299] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.681978] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.689863] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.698312] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.714142] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.721051] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.742298] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 45.752841] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.764260] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.770552] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.778837] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.802620] 8021q: adding VLAN 0 to HW filter on device batadv0 2020/04/01 07:09:13 executed programs: 15 2020/04/01 07:09:18 executed programs: 194 [ 53.440475] [ 53.442150] ===================================== [ 53.447071] WARNING: bad unlock balance detected! [ 53.451895] 4.19.113-syzkaller #0 Not tainted [ 53.456615] ------------------------------------- [ 53.461466] kworker/u4:2/68 is trying to release lock (&file->mut) at: [ 53.468126] [] ucma_event_handler+0x675/0xf80 [ 53.474167] but there are no more locks to release! [ 53.479171] [ 53.479171] other info that might help us debug this: [ 53.485826] 4 locks held by kworker/u4:2/68: [ 53.490216] #0: 000000009a182cfe ((wq_completion)"ib_addr"){+.+.}, at: process_one_work+0x762/0x1670 [ 53.499667] #1: 00000000272cc635 ((work_completion)(&(&req->work)->work)){+.+.}, at: process_one_work+0x792/0x1670 [ 53.510403] #2: 00000000f44c69cf (&id_priv->handler_mutex){+.+.}, at: addr_handler+0xac/0x300 [ 53.519172] #3: 0000000093ce38ba (&file->mut){+.+.}, at: ucma_event_handler+0xa8/0xf80 [ 53.527316] [ 53.527316] stack backtrace: [ 53.531814] CPU: 1 PID: 68 Comm: kworker/u4:2 Not tainted 4.19.113-syzkaller #0 [ 53.539236] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.548574] Workqueue: ib_addr process_one_req [ 53.553143] Call Trace: [ 53.555721] dump_stack+0x123/0x177 [ 53.559325] ? ucma_event_handler+0x675/0xf80 [ 53.563802] print_unlock_imbalance_bug.cold.50+0x114/0x123 [ 53.569490] lock_release+0x685/0x850 [ 53.573280] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 53.578370] ? ucma_event_handler+0x675/0xf80 [ 53.582839] ? lock_downgrade+0x860/0x860 [ 53.586987] ? trace_hardirqs_on+0x28/0x190 [ 53.591310] __mutex_unlock_slowpath+0x8e/0x6a0 [ 53.595964] ? __wake_up_common+0x600/0x600 [ 53.600277] ? wait_for_completion+0x460/0x460 [ 53.604857] ? lockdep_hardirqs_on+0x421/0x5c0 [ 53.609424] mutex_unlock+0xd/0x10 [ 53.612949] ucma_event_handler+0x675/0xf80 [ 53.617254] addr_handler+0x23d/0x300 [ 53.621032] ? cma_work_handler+0x1b0/0x1b0 [ 53.625340] ? lock_downgrade+0x860/0x860 [ 53.629476] ? find_held_lock+0x36/0x1d0 [ 53.633521] ? __lock_is_held+0xb5/0x140 [ 53.637573] ? cma_work_handler+0x1b0/0x1b0 [ 53.641870] process_one_req+0xd4/0x5b0 [ 53.646271] process_one_work+0x830/0x1670 [ 53.650484] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 53.655128] ? lock_acquire+0x173/0x3d0 [ 53.659093] ? kasan_check_write+0x14/0x20 [ 53.663305] ? do_raw_spin_lock+0xd0/0x240 [ 53.667516] worker_thread+0x85/0xb60 [ 53.671290] ? __kthread_parkme+0x47/0x190 [ 53.675501] kthread+0x324/0x3e0 [ 53.678864] ? process_one_work+0x1670/0x1670 [ 53.683443] ? kthread_cancel_delayed_work_sync+0x10/0x10 [ 53.688966] ret_from_fork+0x24/0x30