Debian GNU/Linux 9 syzkaller ttyS0 syzkaller login: [ 33.789457] audit: type=1400 audit(1598724854.622:8): avc: denied { execmem } for pid=6420 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.812437] IPVS: ftp: loaded support on port[0] = 21 [ 34.203551] can: request_module (can-proto-0) failed. [ 34.785714] can: request_module (can-proto-0) failed. [ 34.794252] can: request_module (can-proto-0) failed. [ 34.819675] audit: type=1400 audit(1598724855.652:9): avc: denied { create } for pid=6399 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 '10.128.10.18' (ECDSA) to the list of known hosts. 2020/08/29 18:14:22 parsed 1 programs 2020/08/29 18:14:23 executed programs: 0 [ 42.535313] audit: type=1400 audit(1598724863.365:10): avc: denied { execmem } for pid=6543 comm="syz-executor.2" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 42.607472] IPVS: ftp: loaded support on port[0] = 21 [ 42.618630] IPVS: ftp: loaded support on port[0] = 21 [ 42.639871] IPVS: ftp: loaded support on port[0] = 21 [ 42.700944] IPVS: ftp: loaded support on port[0] = 21 [ 42.709023] IPVS: ftp: loaded support on port[0] = 21 [ 42.719797] IPVS: ftp: loaded support on port[0] = 21 [ 42.821985] chnl_net:caif_netlink_parms(): no params data found [ 42.949628] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.956844] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.965544] device bridge_slave_0 entered promiscuous mode [ 43.001868] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.008480] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.017032] device bridge_slave_1 entered promiscuous mode [ 43.026478] chnl_net:caif_netlink_parms(): no params data found [ 43.068361] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.078167] chnl_net:caif_netlink_parms(): no params data found [ 43.109094] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.200635] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.207477] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.215024] device bridge_slave_0 entered promiscuous mode [ 43.242627] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 43.252002] team0: Port device team_slave_0 added [ 43.272109] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.279170] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.286689] device bridge_slave_1 entered promiscuous mode [ 43.316027] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 43.324649] team0: Port device team_slave_1 added [ 43.330014] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 43.350228] chnl_net:caif_netlink_parms(): no params data found [ 43.367315] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.374735] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.381648] device bridge_slave_0 entered promiscuous mode [ 43.391305] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.398308] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.405530] device bridge_slave_1 entered promiscuous mode [ 43.412027] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 43.428167] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.447259] device hsr_slave_0 entered promiscuous mode [ 43.453717] device hsr_slave_1 entered promiscuous mode [ 43.467693] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.478793] chnl_net:caif_netlink_parms(): no params data found [ 43.490108] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 43.502668] chnl_net:caif_netlink_parms(): no params data found [ 43.531610] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.539451] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 43.550089] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 43.558778] team0: Port device team_slave_0 added [ 43.576942] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.606179] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 43.613999] team0: Port device team_slave_1 added [ 43.630983] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.641796] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.651068] device bridge_slave_0 entered promiscuous mode [ 43.662671] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.670202] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.677428] device bridge_slave_1 entered promiscuous mode [ 43.685172] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 43.692284] team0: Port device team_slave_0 added [ 43.698308] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 43.710619] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 43.735138] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 43.742514] team0: Port device team_slave_1 added [ 43.762319] device hsr_slave_0 entered promiscuous mode [ 43.769472] device hsr_slave_1 entered promiscuous mode [ 43.778195] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 43.795507] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 43.803259] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.809698] bridge0: port 2(bridge_slave_1) entered forwarding state [ 43.816647] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.823020] bridge0: port 1(bridge_slave_0) entered forwarding state [ 43.836589] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 43.846375] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 43.855970] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 43.864289] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 43.871925] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.879719] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.887558] device bridge_slave_0 entered promiscuous mode [ 43.895733] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.902779] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.940841] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.947397] bridge0: port 2(bridge_slave_1) entered disabled state [ 43.955409] device bridge_slave_1 entered promiscuous mode [ 43.961376] bridge0: port 1(bridge_slave_0) entered blocking state [ 43.967990] bridge0: port 1(bridge_slave_0) entered disabled state [ 43.976238] device bridge_slave_0 entered promiscuous mode [ 43.987674] bridge0: port 2(bridge_slave_1) entered blocking state [ 43.994070] bridge0: port 2(bridge_slave_1) entered disabled state [ 44.001154] device bridge_slave_1 entered promiscuous mode [ 44.014218] device hsr_slave_0 entered promiscuous mode [ 44.019780] device hsr_slave_1 entered promiscuous mode [ 44.026038] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 44.050549] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.060257] team0: Port device team_slave_0 added [ 44.067141] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 44.078043] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 44.086753] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.096303] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.116374] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.124294] team0: Port device team_slave_1 added [ 44.130367] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 44.143424] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 44.167906] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.177935] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.196119] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.204357] team0: Port device team_slave_0 added [ 44.209577] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 44.216804] team0: Port device team_slave_0 added [ 44.232051] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 44.241167] device hsr_slave_0 entered promiscuous mode [ 44.247552] device hsr_slave_1 entered promiscuous mode [ 44.253718] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 44.261012] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 44.268447] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.276703] team0: Port device team_slave_1 added [ 44.283454] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 44.290785] team0: Port device team_slave_1 added [ 44.296466] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.305120] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.318165] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 44.325689] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 44.350262] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 44.362726] device hsr_slave_0 entered promiscuous mode [ 44.368732] device hsr_slave_1 entered promiscuous mode [ 44.376645] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 44.393863] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.407875] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 44.422376] device hsr_slave_0 entered promiscuous mode [ 44.428993] device hsr_slave_1 entered promiscuous mode [ 44.436016] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 44.449724] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 44.458626] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.473245] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 44.484105] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.490163] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.500238] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.508738] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.535463] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.554957] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.560952] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.569561] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.577770] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.584160] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.592177] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 44.604919] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 44.612058] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 44.636181] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.644744] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.651698] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.662240] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 44.671031] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 44.679367] bridge0: port 2(bridge_slave_1) entered blocking state [ 44.685770] bridge0: port 2(bridge_slave_1) entered forwarding state [ 44.694894] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 44.703834] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 44.724968] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 44.732701] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 44.756605] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 44.766168] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 44.773586] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 44.794929] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 44.800994] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.808145] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 44.817847] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 44.825896] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 44.833962] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.840702] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.848067] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 44.855308] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 44.862146] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 44.872512] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.881054] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 44.889312] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.896412] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.905635] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 44.915923] 8021q: adding VLAN 0 to HW filter on device bond0 [ 44.924211] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 44.930270] 8021q: adding VLAN 0 to HW filter on device team0 [ 44.940560] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 44.950884] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 44.959339] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 44.967040] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 44.974816] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 44.982288] bridge0: port 1(bridge_slave_0) entered blocking state [ 44.988715] bridge0: port 1(bridge_slave_0) entered forwarding state [ 44.995644] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.003872] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 45.011851] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.025111] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.034304] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.041361] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.048986] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.055547] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.063544] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.071015] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.079220] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.086812] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.093198] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.099881] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.107019] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.113926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.120666] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.129341] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 45.139941] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.146580] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.154159] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.164513] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.170577] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.178287] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.186037] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 45.193568] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.200829] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.208687] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.216780] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.223165] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.231734] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.239928] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 45.246635] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.256516] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.267328] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.275218] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.286024] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.294059] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.300381] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.308093] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.316058] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.323477] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.332276] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.342223] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.352513] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.361479] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 45.368523] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.376872] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.385103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.393086] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.400598] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.406992] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.414201] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.421913] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.429584] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.435976] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.445432] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 45.454829] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.464057] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 45.472164] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 45.483230] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 45.491060] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.500424] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.508315] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 45.516116] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.524684] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.532162] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.538537] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.545654] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 45.553468] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 45.561228] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.568842] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 45.576819] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.584470] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.590812] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.597724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.605880] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.613060] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.620002] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.631318] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 45.639534] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.652432] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 45.665060] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 45.672345] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 45.678872] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.687286] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.695877] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.702210] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.709600] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 45.717891] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.726124] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.732449] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.739748] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 45.747819] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.755590] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.762225] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.770591] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.781937] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 45.791738] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 45.799688] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.807145] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.815292] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.823372] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 45.830902] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 45.838850] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.846766] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.855121] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.862939] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 45.871205] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.885085] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 45.893149] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 45.899989] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.900519] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.918129] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.926408] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 45.934222] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.941592] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 45.949134] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.957066] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 45.966616] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 45.976758] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.984971] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 45.995674] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.004887] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.012277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.020537] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.029741] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.039897] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 46.048733] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.058534] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 46.068103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.076310] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.085145] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.093204] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.100589] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.108459] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 46.116947] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.125999] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 46.135612] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 46.146894] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 46.157119] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.163452] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.170276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.178519] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.186554] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.194517] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.201892] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 46.210236] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 46.219674] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 46.229365] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.238453] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.245977] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.263305] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.270810] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.280185] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 46.292772] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.300882] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 46.311452] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.322232] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.332848] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 46.339683] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.349166] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.358553] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.366525] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.374529] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 46.382091] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 46.390799] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.397565] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.407072] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 46.419256] IPv6: ADDRCONF(NETDEV_UP): veth0_to_hsr: link is not ready [ 46.426835] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.434644] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 46.442771] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 46.460050] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 46.470928] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 46.479829] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.497688] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.508539] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.520224] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.528570] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.540141] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.548955] IPv6: ADDRCONF(NETDEV_UP): veth1_to_hsr: link is not ready [ 46.558202] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 46.572712] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 46.578767] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 46.600951] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.610718] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.620549] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 46.630519] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 46.639795] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.646937] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.655817] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.670296] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 46.678008] IPv6: ADDRCONF(NETDEV_UP): vxcan0: link is not ready [ 46.697845] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.717101] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.733726] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.740411] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.758179] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 46.774982] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 46.784639] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 46.791318] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 46.805848] 8021q: adding VLAN 0 to HW filter on device batadv0 2020/08/29 18:14:28 executed programs: 40 [ 49.675179] [ 49.676821] ===================================== [ 49.681641] WARNING: bad unlock balance detected! [ 49.686469] 4.19.142-syzkaller #0 Not tainted [ 49.690947] ------------------------------------- [ 49.695770] kworker/u4:4/2349 is trying to release lock (&file->mut) at: [ 49.702607] [] ucma_event_handler+0x6c7/0x1020 [ 49.708751] but there are no more locks to release! [ 49.713758] [ 49.713758] other info that might help us debug this: [ 49.720413] 4 locks held by kworker/u4:4/2349: [ 49.724974] #0: 0000000055ff69fc ((wq_completion)"ib_addr"){+.+.}, at: process_one_work+0x762/0x1670 [ 49.734329] #1: 00000000d14cff85 ((work_completion)(&(&req->work)->work)){+.+.}, at: process_one_work+0x792/0x1670 [ 49.744906] #2: 00000000cdabe110 (&id_priv->handler_mutex){+.+.}, at: addr_handler+0xac/0x300 [ 49.753649] #3: 00000000961fb17e (&file->mut){+.+.}, at: ucma_event_handler+0xa8/0x1020 [ 49.761859] [ 49.761859] stack backtrace: [ 49.766345] CPU: 1 PID: 2349 Comm: kworker/u4:4 Not tainted 4.19.142-syzkaller #0 [ 49.773942] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.783280] Workqueue: ib_addr process_one_req [ 49.787835] Call Trace: [ 49.790404] dump_stack+0x123/0x177 [ 49.794010] ? ucma_event_handler+0x6c7/0x1020 [ 49.798597] print_unlock_imbalance_bug.cold.50+0x114/0x123 [ 49.804287] lock_release+0x685/0x850 [ 49.808064] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 49.813145] ? ucma_event_handler+0x6c7/0x1020 [ 49.817706] ? lock_downgrade+0x860/0x860 [ 49.821833] ? trace_hardirqs_on+0x28/0x190 [ 49.826135] __mutex_unlock_slowpath+0x8e/0x6a0 [ 49.830782] ? __wake_up_common+0x600/0x600 [ 49.835081] ? wait_for_completion+0x460/0x460 [ 49.839659] ? lockdep_hardirqs_on+0x421/0x5c0 [ 49.844219] mutex_unlock+0xd/0x10 [ 49.847749] ucma_event_handler+0x6c7/0x1020 [ 49.852141] addr_handler+0x23d/0x300 [ 49.855942] ? cma_work_handler+0x1b0/0x1b0 [ 49.860241] ? lock_downgrade+0x860/0x860 [ 49.864384] ? find_held_lock+0x36/0x1d0 [ 49.868424] ? __lock_is_held+0xb5/0x140 [ 49.872471] ? cma_work_handler+0x1b0/0x1b0 [ 49.876769] process_one_req+0xd4/0x5b0 [ 49.880723] process_one_work+0x830/0x1670 [ 49.884937] ? pwq_dec_nr_in_flight+0x2c0/0x2c0 [ 49.889601] ? lock_acquire+0x173/0x3d0 [ 49.893558] ? kasan_check_write+0x14/0x20 [ 49.897771] ? do_raw_spin_lock+0xd0/0x240 [ 49.901987] worker_thread+0x85/0xb60 [ 49.905765] ? __kthread_parkme+0x37/0x1c0 [ 49.909977] kthread+0x347/0x410 [ 49.913322] ? process_one_work+0x1670/0x1670 [ 49.917795] ? kthread_cancel_delayed_work_sync+0x10/0x10 [ 49.923441] ret_from_fork+0x24/0x30