Warning: Permanently added '10.128.0.240' (ECDSA) to the list of known hosts. 2020/01/08 09:43:15 fuzzer started 2020/01/08 09:43:16 dialing manager at 10.128.0.26:35703 2020/01/08 09:43:17 syscalls: 2824 2020/01/08 09:43:17 code coverage: enabled 2020/01/08 09:43:17 comparison tracing: enabled 2020/01/08 09:43:17 extra coverage: enabled 2020/01/08 09:43:17 setuid sandbox: enabled 2020/01/08 09:43:17 namespace sandbox: enabled 2020/01/08 09:43:17 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 09:43:17 fault injection: enabled 2020/01/08 09:43:17 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 09:43:17 net packet injection: enabled 2020/01/08 09:43:17 net device setup: enabled 2020/01/08 09:43:17 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 09:43:17 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:43:18 executing program 0: r0 = syz_open_dev$evdev(&(0x7f0000000040)='/dev/input/event#\x00', 0x476, 0x101102) write$evdev(r0, &(0x7f00000003c0)=[{{}, 0x11, 0x7}], 0x18) 09:43:18 executing program 1: r0 = inotify_init1(0x0) fcntl$setown(r0, 0x8, 0xffffffffffffffff) fcntl$getownex(r0, 0x10, &(0x7f0000000040)) clone3(&(0x7f00000002c0)={0x20000000, 0x0, 0x0, 0x0, {}, 0x0, 0x0, 0x0, 0x0}, 0x50) syzkaller login: [ 64.048170][ T8589] IPVS: ftp: loaded support on port[0] = 21 [ 64.183850][ T8589] chnl_net:caif_netlink_parms(): no params data found [ 64.238950][ T8589] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.247620][ T8589] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.255849][ T8589] device bridge_slave_0 entered promiscuous mode [ 64.264843][ T8589] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.272421][ T8589] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.280456][ T8589] device bridge_slave_1 entered promiscuous mode [ 64.283055][ T8592] IPVS: ftp: loaded support on port[0] = 21 [ 64.307122][ T8589] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.323183][ T8589] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 09:43:18 executing program 2: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000040)={0x0, 0x0, &(0x7f0000000240)={&(0x7f0000000080)=@newlink={0x3c, 0x10, 0x705, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x1c, 0x12, @erspan={{0xc, 0x1, 'erspan\x00'}, {0xc, 0x2, [@IFLA_GRE_REMOTE={0x8, 0x7, @empty}]}}}]}, 0x3c}}, 0x0) [ 64.347216][ T8589] team0: Port device team_slave_0 added [ 64.358714][ T8589] team0: Port device team_slave_1 added [ 64.442004][ T8589] device hsr_slave_0 entered promiscuous mode 09:43:18 executing program 3: mkdir(&(0x7f0000000100)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000240)='./file0\x00', &(0x7f0000000300)='ramfs\x00', 0x0, 0x0) syz_mount_image$f2fs(0x0, &(0x7f0000000040)='./file0/file1\x00', 0x0, 0x0, 0x0, 0x0, 0x0) mount$overlay(0x0, &(0x7f0000000200)='./file0\x00', &(0x7f00000000c0)='overlay\x00', 0x0, &(0x7f0000000240)=ANY=[@ANYBLOB='lowerdir=.:file0']) lstat(&(0x7f0000000080)='./file0/file1\x00', &(0x7f0000000340)) [ 64.560479][ T8589] device hsr_slave_1 entered promiscuous mode [ 64.648569][ T8594] IPVS: ftp: loaded support on port[0] = 21 [ 64.698499][ T8596] IPVS: ftp: loaded support on port[0] = 21 [ 64.824174][ T8592] chnl_net:caif_netlink_parms(): no params data found 09:43:19 executing program 4: r0 = socket$unix(0x1, 0x5, 0x0) bind$unix(r0, &(0x7f0000003000)=@file={0x1, '\xe9\x1fq\x89Y\x1e\x923aK\x00'}, 0x6e) close(r0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) dup3(r1, r2, 0x0) r3 = fanotify_init(0x0, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='\xe9\x1fq\x89Y\x1e\x923aK\x00', &(0x7f0000000180)='9p\x00', 0x0, &(0x7f0000000240)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r3}}) [ 64.877246][ T8589] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 64.934482][ T8589] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 65.033676][ T8589] netdevsim netdevsim0 netdevsim2: renamed from eth2 09:43:19 executing program 5: setsockopt$inet6_MRT6_DEL_MFC_PROXY(0xffffffffffffffff, 0x29, 0xd3, &(0x7f0000002000)={{0xa, 0x0, 0x0, @mcast2}, {0xa, 0x0, 0x0, @mcast2}}, 0xc2) setsockopt$inet6_tcp_TCP_REPAIR_WINDOW(0xffffffffffffffff, 0x6, 0x1d, &(0x7f0000002000), 0x14) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_int(r0, 0x29, 0x40, &(0x7f0000001fde), 0x4) [ 65.111691][ T8589] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 65.212356][ T8599] IPVS: ftp: loaded support on port[0] = 21 [ 65.247288][ T8592] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.255819][ T8592] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.263630][ T8592] device bridge_slave_0 entered promiscuous mode [ 65.273321][ T8592] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.281264][ T8592] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.288807][ T8592] device bridge_slave_1 entered promiscuous mode [ 65.329145][ T8596] chnl_net:caif_netlink_parms(): no params data found [ 65.348872][ T8594] chnl_net:caif_netlink_parms(): no params data found [ 65.356029][ T8601] IPVS: ftp: loaded support on port[0] = 21 [ 65.365874][ T8592] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.402646][ T8592] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.430381][ T8592] team0: Port device team_slave_0 added [ 65.458263][ T8592] team0: Port device team_slave_1 added [ 65.477738][ T8594] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.485560][ T8594] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.494929][ T8594] device bridge_slave_0 entered promiscuous mode [ 65.515402][ T8596] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.524617][ T8596] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.532610][ T8596] device bridge_slave_0 entered promiscuous mode [ 65.622716][ T8592] device hsr_slave_0 entered promiscuous mode [ 65.661411][ T8592] device hsr_slave_1 entered promiscuous mode [ 65.719419][ T8592] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.727178][ T8592] Cannot create hsr debugfs directory [ 65.733210][ T8594] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.740401][ T8594] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.748016][ T8594] device bridge_slave_1 entered promiscuous mode [ 65.763413][ T8596] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.771580][ T8596] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.779090][ T8596] device bridge_slave_1 entered promiscuous mode [ 65.818912][ T8596] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.831995][ T8594] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.850179][ T8596] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.875594][ T8594] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.923974][ T8596] team0: Port device team_slave_0 added [ 65.935685][ T8594] team0: Port device team_slave_0 added [ 65.952381][ T8596] team0: Port device team_slave_1 added [ 65.958303][ T8599] chnl_net:caif_netlink_parms(): no params data found [ 65.971178][ T8594] team0: Port device team_slave_1 added [ 66.042726][ T8596] device hsr_slave_0 entered promiscuous mode [ 66.099717][ T8596] device hsr_slave_1 entered promiscuous mode [ 66.149355][ T8596] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.157008][ T8596] Cannot create hsr debugfs directory [ 66.292058][ T8594] device hsr_slave_0 entered promiscuous mode [ 66.329682][ T8594] device hsr_slave_1 entered promiscuous mode [ 66.389462][ T8594] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 66.397038][ T8594] Cannot create hsr debugfs directory [ 66.427736][ T8599] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.435435][ T8599] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.443084][ T8599] device bridge_slave_0 entered promiscuous mode [ 66.464029][ T8592] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 66.521426][ T8592] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 66.564487][ T8592] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 66.620595][ T8599] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.627715][ T8599] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.637696][ T8599] device bridge_slave_1 entered promiscuous mode [ 66.666516][ T8601] chnl_net:caif_netlink_parms(): no params data found [ 66.676665][ T8592] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 66.737890][ T8599] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.756854][ T8589] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.769168][ T8599] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.813195][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.824549][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.851244][ T8589] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.866845][ T8599] team0: Port device team_slave_0 added [ 66.877176][ T8601] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.885270][ T8601] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.893838][ T8601] device bridge_slave_0 entered promiscuous mode [ 66.908469][ T8601] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.916313][ T8601] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.924404][ T8601] device bridge_slave_1 entered promiscuous mode [ 66.932629][ T8599] team0: Port device team_slave_1 added [ 66.951862][ T8601] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.975732][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.984431][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.993215][ T2818] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.000431][ T2818] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.008526][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.017261][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.025935][ T2818] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.033037][ T2818] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.040757][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.054379][ T8601] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.102906][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.123450][ T8594] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 67.181156][ T8596] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 67.252116][ T8599] device hsr_slave_0 entered promiscuous mode [ 67.289789][ T8599] device hsr_slave_1 entered promiscuous mode [ 67.339411][ T8599] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.347010][ T8599] Cannot create hsr debugfs directory [ 67.353961][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.365798][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.374739][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.383614][ T8594] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 67.432699][ T8594] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 67.491211][ T8596] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 67.533133][ T8601] team0: Port device team_slave_0 added [ 67.539980][ T8596] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 67.592730][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.600486][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.609721][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.627160][ T8589] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.640134][ T8589] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.651734][ T8594] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 67.706328][ T8601] team0: Port device team_slave_1 added [ 67.712484][ T8596] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 67.761139][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 67.770115][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.778732][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.787353][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.795847][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.815622][ T8592] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.860032][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 67.867713][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 67.930992][ T8601] device hsr_slave_0 entered promiscuous mode [ 67.979526][ T8601] device hsr_slave_1 entered promiscuous mode [ 68.029349][ T8601] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.036928][ T8601] Cannot create hsr debugfs directory [ 68.054790][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.062444][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.076605][ T8592] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.088776][ T8589] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.132069][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.141982][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.150463][ T2818] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.157496][ T2818] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.168452][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.223063][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.234424][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.242839][ T3025] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.250126][ T3025] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.258388][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.266965][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.275382][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 68.284407][ T3025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 68.323656][ T8599] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.351228][ T8599] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.401254][ T2964] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.412373][ T2964] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.421021][ T2964] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.430300][ T2964] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.441504][ T2964] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.468973][ T8589] device veth0_vlan entered promiscuous mode [ 68.478814][ T8599] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.533922][ T8601] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 68.582057][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 68.590515][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 68.598841][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.607384][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.616232][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.624732][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.633393][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 68.641356][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 68.650621][ T8599] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 68.713729][ T8601] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 68.745605][ T8589] device veth1_vlan entered promiscuous mode [ 68.763124][ T8596] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.778050][ T8601] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 68.802561][ T8601] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 68.863989][ T8594] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.886092][ T8592] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.895306][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.906393][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.914187][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.922393][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.933170][ T8594] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.960831][ T8596] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.972335][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.982210][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.014502][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.024171][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.033558][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.042336][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.050728][ T2868] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.057762][ T2868] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.065597][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.074107][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.082466][ T2868] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.089544][ T2868] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.097063][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.105898][ T2868] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.114246][ T2868] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.121311][ T2868] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.159656][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.167533][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.175968][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.185096][ T2818] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.194244][ T2818] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.201431][ T2818] bridge0: port 2(bridge_slave_1) entered forwarding state [ 174.229207][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 174.236160][ C0] rcu: 0-...!: (10499 ticks this GP) idle=e7a/1/0x4000000000000002 softirq=14170/14170 fqs=149 [ 174.247447][ C0] (t=10501 jiffies g=6909 q=92) [ 174.253291][ C0] rcu: rcu_preempt kthread starved for 10204 jiffies! g6909 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 174.264384][ C0] rcu: RCU grace-period kthread stack dump: [ 174.270271][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 174.280119][ C0] Call Trace: [ 174.284104][ C0] __schedule+0x9a0/0xcc0 [ 174.288563][ C0] schedule+0x181/0x210 [ 174.292719][ C0] schedule_timeout+0x14f/0x240 [ 174.297562][ C0] ? run_local_timers+0x120/0x120 [ 174.302874][ C0] rcu_gp_kthread+0xed8/0x1770 [ 174.307729][ C0] kthread+0x332/0x350 [ 174.313286][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 174.318405][ C0] ? kthread_blkcg+0xe0/0xe0 [ 174.323176][ C0] ret_from_fork+0x24/0x30 [ 174.327962][ C0] NMI backtrace for cpu 0 [ 174.333275][ C0] CPU: 0 PID: 2818 Comm: kworker/0:34 Not tainted 5.5.0-rc5-syzkaller #0 [ 174.343608][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 174.353927][ C0] Workqueue: events linkwatch_event [ 174.359537][ C0] Call Trace: [ 174.363778][ C0] [ 174.367602][ C0] dump_stack+0x1fb/0x318 [ 174.371945][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 174.376789][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 174.383482][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 174.390971][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 174.397291][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 174.403173][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 174.408308][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 174.414483][ C0] ? trace_hardirqs_off+0x74/0x80 [ 174.421009][ C0] update_process_times+0x12d/0x180 [ 174.426199][ C0] tick_sched_timer+0x263/0x420 [ 174.431039][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 174.437015][ C0] __hrtimer_run_queues+0x403/0x840 [ 174.443331][ C0] hrtimer_interrupt+0x38c/0xda0 [ 174.448276][ C0] ? debug_smp_processor_id+0x9/0x20 [ 174.453697][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 174.459275][ C0] apic_timer_interrupt+0xf/0x20 [ 174.464273][ C0] [ 174.467965][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 174.474375][ C0] Code: 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 94 6a 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 <74> 08 48 89 df e8 55 94 6a 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 174.494160][ C0] RSP: 0018:ffffc90007a27820 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 174.503240][ C0] RAX: 1ffff11014ea3fb1 RBX: ffff8880a751fd88 RCX: 0000000000000000 [ 174.511748][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000280c8c0 [ 174.519716][ C0] RBP: ffffc90007a27858 R08: 000000000003a728 R09: fffffbfff124248a [ 174.527689][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff8880a751fe20 [ 174.535665][ C0] R13: dffffc0000000000 R14: 1ffff11014ea3fc4 R15: ffff888098305938 [ 174.543766][ C0] put_task_stack+0xa3/0x130 [ 174.548370][ C0] finish_task_switch+0x3f1/0x550 [ 174.553489][ C0] __schedule+0x9a8/0xcc0 [ 174.558259][ C0] ? ___preempt_schedule+0x16/0x18 [ 174.563364][ C0] preempt_schedule+0xdb/0x120 [ 174.568304][ C0] ? br_port_carrier_check+0x462/0x570 [ 174.574783][ C0] ___preempt_schedule+0x16/0x18 [ 174.579893][ C0] ? mark_lock+0x107/0x1650 [ 174.584388][ C0] __local_bh_enable_ip+0x17d/0x240 [ 174.589579][ C0] ? br_port_carrier_check+0x462/0x570 [ 174.595112][ C0] _raw_spin_unlock_bh+0x2f/0x40 [ 174.600043][ C0] br_port_carrier_check+0x462/0x570 [ 174.605350][ C0] br_device_event+0x449/0x860 [ 174.610121][ C0] raw_notifier_call_chain+0xec/0x190 [ 174.616065][ C0] netdev_state_change+0x147/0x1f0 [ 174.621184][ C0] linkwatch_do_dev+0x10e/0x160 [ 174.626407][ C0] __linkwatch_run_queue+0x446/0x730 [ 174.631692][ C0] linkwatch_event+0x4c/0x60 [ 174.636273][ C0] process_one_work+0x7ef/0x10d0 [ 174.641433][ C0] worker_thread+0xc01/0x1630 [ 174.646130][ C0] kthread+0x332/0x350 [ 174.650190][ C0] ? rcu_lock_release+0x30/0x30 [ 174.655114][ C0] ? kthread_blkcg+0xe0/0xe0 [ 174.659696][ C0] ret_from_fork+0x24/0x30