[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 50.977078][ T26] audit: type=1800 audit(1575364693.715:25): pid=8304 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 51.001002][ T26] audit: type=1800 audit(1575364693.715:26): pid=8304 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 51.040298][ T26] audit: type=1800 audit(1575364693.715:27): pid=8304 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.84' (ECDSA) to the list of known hosts. 2019/12/03 09:18:24 fuzzer started 2019/12/03 09:18:26 dialing manager at 10.128.0.26:38907 2019/12/03 09:18:26 syscalls: 2697 2019/12/03 09:18:26 code coverage: enabled 2019/12/03 09:18:26 comparison tracing: enabled 2019/12/03 09:18:26 extra coverage: extra coverage is not supported by the kernel 2019/12/03 09:18:26 setuid sandbox: enabled 2019/12/03 09:18:26 namespace sandbox: enabled 2019/12/03 09:18:26 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 09:18:26 fault injection: enabled 2019/12/03 09:18:26 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 09:18:26 net packet injection: enabled 2019/12/03 09:18:26 net device setup: enabled 2019/12/03 09:18:26 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 09:18:26 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:18:27 executing program 0: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000029000/0x18000)=nil, &(0x7f0000000240)=[@text32={0x20, &(0x7f0000000140)="b9800000c00f3263350100000000309a49000000650c660f3882af724d0000c74424007d720000c744240206000000c7442406000000000f011424c74424008fc4bd87c7442402c43a727fdcc3c47224060000000000001424f30f090f013a360f06c4c18d72d68366baa100ed", 0x6d}], 0x1, 0x0, 0x0, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000bf7000)={0x0, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r2, 0x4090ae82, &(0x7f0000000380)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc5e]}) ioctl$KVM_RUN(r2, 0xae80, 0x0) perf_event_open(&(0x7f0000000000)={0x5, 0x70, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, @perf_config_ext, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x26}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) 09:18:27 executing program 1: r0 = syz_open_dev$sndtimer(&(0x7f0000000200)='/dev/snd/timer\x00', 0x0, 0x0) ioctl$SNDRV_TIMER_IOCTL_SELECT(r0, 0x40345410, &(0x7f0000000100)={{0x1}}) ioctl$SNDRV_TIMER_IOCTL_PARAMS(r0, 0x40505412, &(0x7f0000000080)={0x0, 0x200000022d}) syzkaller login: [ 65.165563][ T8467] IPVS: ftp: loaded support on port[0] = 21 09:18:28 executing program 2: r0 = socket$netlink(0x10, 0x3, 0xc) writev(r0, &(0x7f0000000000)=[{&(0x7f0000000080)="390000000e06050368fe07002b0000000e430a001400020045b300070300001419001a00120002000e00010007000300"/57, 0x39}], 0x1) [ 65.319513][ T8470] IPVS: ftp: loaded support on port[0] = 21 [ 65.331737][ T8467] chnl_net:caif_netlink_parms(): no params data found [ 65.438402][ T8467] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.452032][ T8467] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.470931][ T8467] device bridge_slave_0 entered promiscuous mode [ 65.492020][ T8467] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.499166][ T8467] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.511683][ T8467] device bridge_slave_1 entered promiscuous mode [ 65.525757][ T8472] IPVS: ftp: loaded support on port[0] = 21 09:18:28 executing program 3: r0 = open(&(0x7f0000000040)='./file0\x00', 0x200c2, 0x0) r1 = creat(&(0x7f0000000080)='./file0\x00', 0x0) syz_open_dev$sndpcmc(&(0x7f0000000180)='/dev\xa2\x80\xe6!\xa8\x90R\xfdC#D#c\x00', 0x0, 0x0) r2 = fanotify_init(0x0, 0x0) fanotify_mark(r2, 0x105, 0x101b, r1, 0x0) write$binfmt_elf64(r0, &(0x7f0000000340)=ANY=[@ANYBLOB="ed8ed24112ccba9ecbaea5e8dd24f24b3ac273c81c2b7c8c5b06d007e4c0072fab72c7d711beb15f4313966fe3a4fa21e76fc4d05e107ac82d5e075205917f03000000030b6daa6e72ad000000610000000000000001a25a382ed7fbcbbc4e5508505d08b26f5521b1ac0543978e05"], 0x6f) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendfile(r0, r0, &(0x7f00000001c0), 0xa198) [ 65.595431][ T8467] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.627437][ T8467] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.655372][ T8470] chnl_net:caif_netlink_parms(): no params data found [ 65.736846][ T8467] team0: Port device team_slave_0 added [ 65.752558][ T8467] team0: Port device team_slave_1 added [ 65.775818][ T8475] IPVS: ftp: loaded support on port[0] = 21 09:18:28 executing program 4: ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) r0 = getpgid(0x0) r1 = pidfd_open(r0, 0x0) pidfd_send_signal(r1, 0x0, &(0x7f00000013c0)={0x8, 0x0, 0x410000}, 0x0) [ 65.825246][ T8467] device hsr_slave_0 entered promiscuous mode [ 65.891121][ T8467] device hsr_slave_1 entered promiscuous mode [ 65.995495][ T8470] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.010922][ T8470] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.031723][ T8470] device bridge_slave_0 entered promiscuous mode [ 66.097228][ T8470] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.106077][ T8470] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.114485][ T8470] device bridge_slave_1 entered promiscuous mode 09:18:28 executing program 5: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = dup3(r0, r1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r3, &(0x7f000001bfc8)={0x0, 0x0, &(0x7f00000000c0)={&(0x7f0000000480)=@newlink={0x3c, 0x10, 0x801, 0x0, 0x0, {}, [@IFLA_GROUP={0x8}, @IFLA_VFINFO_LIST={0x14, 0x16, [{0x10, 0x1, [@IFLA_VF_RSS_QUERY_EN={0xc}]}]}]}, 0x3c}}, 0x0) [ 66.137442][ T8472] chnl_net:caif_netlink_parms(): no params data found [ 66.156206][ T8477] IPVS: ftp: loaded support on port[0] = 21 [ 66.257243][ T8467] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.322933][ T8467] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.397764][ T8470] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.414393][ T8472] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.422327][ T8472] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.430008][ T8472] device bridge_slave_0 entered promiscuous mode [ 66.444787][ T8467] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.538511][ T8470] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.562377][ T8472] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.569481][ T8472] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.577408][ T8472] device bridge_slave_1 entered promiscuous mode [ 66.584528][ T8467] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.654841][ T8480] IPVS: ftp: loaded support on port[0] = 21 [ 66.654864][ T8470] team0: Port device team_slave_0 added [ 66.702324][ T8470] team0: Port device team_slave_1 added [ 66.719569][ T8475] chnl_net:caif_netlink_parms(): no params data found [ 66.748712][ T8472] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.760030][ T8472] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.787649][ T8472] team0: Port device team_slave_0 added [ 66.795716][ T8472] team0: Port device team_slave_1 added [ 66.844237][ T8475] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.854035][ T8475] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.862372][ T8475] device bridge_slave_0 entered promiscuous mode [ 66.870594][ T8475] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.877771][ T8475] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.885578][ T8475] device bridge_slave_1 entered promiscuous mode [ 66.934028][ T8470] device hsr_slave_0 entered promiscuous mode [ 66.971297][ T8470] device hsr_slave_1 entered promiscuous mode [ 67.011146][ T8470] debugfs: Directory 'hsr0' with parent '/' already present! [ 67.073520][ T8472] device hsr_slave_0 entered promiscuous mode [ 67.121366][ T8472] device hsr_slave_1 entered promiscuous mode [ 67.170893][ T8472] debugfs: Directory 'hsr0' with parent '/' already present! [ 67.195747][ T8475] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.249688][ T8475] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.307859][ T8480] chnl_net:caif_netlink_parms(): no params data found [ 67.319719][ T8475] team0: Port device team_slave_0 added [ 67.329752][ T8475] team0: Port device team_slave_1 added [ 67.341438][ T8477] chnl_net:caif_netlink_parms(): no params data found [ 67.384645][ T8472] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 67.422792][ T8472] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 67.465275][ T8472] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 67.526133][ T8472] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 67.585681][ T8470] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.644765][ T8470] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.727585][ T8477] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.735148][ T8477] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.743107][ T8477] device bridge_slave_0 entered promiscuous mode [ 67.757419][ T8470] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.863673][ T8475] device hsr_slave_0 entered promiscuous mode [ 67.901280][ T8475] device hsr_slave_1 entered promiscuous mode [ 67.940955][ T8475] debugfs: Directory 'hsr0' with parent '/' already present! [ 67.948799][ T8477] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.956089][ T8477] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.966689][ T8477] device bridge_slave_1 entered promiscuous mode [ 67.979851][ T8480] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.988102][ T8480] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.995986][ T8480] device bridge_slave_0 entered promiscuous mode [ 68.004348][ T8470] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 68.067971][ T8480] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.075191][ T8480] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.083563][ T8480] device bridge_slave_1 entered promiscuous mode [ 68.100611][ T8477] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.115422][ T8467] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.148894][ T8477] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.182611][ T8472] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.191847][ T8480] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.204647][ T8480] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.220528][ T8475] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 68.275800][ T8475] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 68.333855][ T8477] team0: Port device team_slave_0 added [ 68.339728][ T8475] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 68.410602][ T8472] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.431725][ T8477] team0: Port device team_slave_1 added [ 68.439269][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.448464][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.457653][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.465664][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.474461][ T8475] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 68.529204][ T8480] team0: Port device team_slave_0 added [ 68.546810][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.555687][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.565482][ T2994] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.572833][ T2994] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.582355][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.590960][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.599354][ T2994] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.606439][ T2994] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.614392][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.623379][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.633945][ T8467] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.649868][ T8480] team0: Port device team_slave_1 added [ 68.683854][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.694759][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.703462][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.712196][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.720648][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.729208][ T3537] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.736317][ T3537] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.744296][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.753233][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.761677][ T3537] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.768717][ T3537] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.776309][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.784763][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.793223][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.801499][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.810710][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.822515][ T3537] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.873630][ T8477] device hsr_slave_0 entered promiscuous mode [ 68.921267][ T8477] device hsr_slave_1 entered promiscuous mode [ 68.970996][ T8477] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.044260][ T8480] device hsr_slave_0 entered promiscuous mode [ 69.091836][ T8480] device hsr_slave_1 entered promiscuous mode [ 69.141147][ T8480] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.166527][ T8472] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.178653][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.187381][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.195759][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.204965][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.215921][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.225350][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.234091][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.242851][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.294348][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.303750][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.312814][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.323476][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.332891][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.341786][ T8477] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 69.396424][ T8477] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 69.443287][ T8477] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 69.505978][ T8467] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.515385][ T8477] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 69.565039][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.572773][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.580615][ T8480] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 69.606261][ T8480] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 69.665689][ T8480] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 69.722824][ T8480] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 69.792369][ T8470] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.816710][ T8470] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.832156][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.839586][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.847892][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.856641][ T3534] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.866660][ T8467] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.879538][ T8475] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.888402][ T8472] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.898167][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.908942][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.917931][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.925115][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.933784][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.963788][ T8475] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.988982][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.998337][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.007048][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.017071][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.025844][ T2994] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.032967][ T2994] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.041333][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.049864][ T2994] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.082824][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.092187][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.100600][ T8481] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.107744][ T8481] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.116111][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.130242][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.139225][ T8481] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.146405][ T8481] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.159548][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.168876][ T8481] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.175170][ T8489] L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. [ 175.200740][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 175.207650][ C1] rcu: 1-...!: (10499 ticks this GP) idle=a36/1/0x4000000000000002 softirq=12115/12115 fqs=34 [ 175.218238][ C1] (t=10500 jiffies g=7041 q=82) [ 175.223168][ C1] rcu: rcu_preempt kthread starved for 10425 jiffies! g7041 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 175.234380][ C1] rcu: RCU grace-period kthread stack dump: [ 175.240283][ C1] rcu_preempt R running task 29016 10 2 0x80004000 [ 175.248202][ C1] Call Trace: [ 175.251511][ C1] __schedule+0x9a0/0xcc0 [ 175.255953][ C1] schedule+0x181/0x210 [ 175.260125][ C1] schedule_timeout+0x14f/0x240 [ 175.264966][ C1] ? run_local_timers+0x120/0x120 [ 175.269981][ C1] rcu_gp_kthread+0xed8/0x1770 [ 175.274753][ C1] kthread+0x332/0x350 [ 175.278843][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 175.283945][ C1] ? kthread_blkcg+0xe0/0xe0 [ 175.288618][ C1] ret_from_fork+0x24/0x30 [ 175.293040][ C1] NMI backtrace for cpu 1 [ 175.297374][ C1] CPU: 1 PID: 8481 Comm: kworker/1:3 Not tainted 5.4.0-syzkaller #0 [ 175.305335][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.315391][ C1] Workqueue: events linkwatch_event [ 175.320573][ C1] Call Trace: [ 175.323844][ C1] [ 175.326687][ C1] dump_stack+0x1fb/0x318 [ 175.331011][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 175.335859][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 175.342020][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 175.348163][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 175.354131][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 175.360010][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 175.365119][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 175.370311][ C1] ? trace_hardirqs_off+0x74/0x80 [ 175.375331][ C1] update_process_times+0x12d/0x180 [ 175.380519][ C1] tick_sched_timer+0x263/0x420 [ 175.385358][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.390899][ C1] __hrtimer_run_queues+0x403/0x840 [ 175.396109][ C1] hrtimer_interrupt+0x38c/0xda0 [ 175.401139][ C1] ? debug_smp_processor_id+0x9/0x20 [ 175.406415][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 175.412056][ C1] apic_timer_interrupt+0xf/0x20 [ 175.416996][ C1] [ 175.419984][ C1] RIP: 0010:free_thread_stack+0x151/0x590 [ 175.425702][ C1] Code: 31 f6 e8 42 af 6e 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 43 a4 69 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 25 a4 69 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 175.445361][ C1] RSP: 0018:ffffc90002977700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 175.455350][ C1] RAX: 1ffff11011bd1711 RBX: ffff88808de8b888 RCX: 0000000000000000 [ 175.463614][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002796700 [ 175.471583][ C1] RBP: ffffc90002977738 R08: 000000000003a768 R09: fffffbfff120248a [ 175.479549][ C1] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff88808de8b920 [ 175.487507][ C1] R13: dffffc0000000000 R14: 1ffff11011bd1724 R15: ffff8880a8731a68 [ 175.495497][ C1] put_task_stack+0xa3/0x130 [ 175.500079][ C1] finish_task_switch+0x3f1/0x550 [ 175.505098][ C1] __schedule+0x9a8/0xcc0 [ 175.509430][ C1] ? ___preempt_schedule+0x16/0x18 [ 175.514527][ C1] preempt_schedule+0xdb/0x120 [ 175.519277][ C1] ___preempt_schedule+0x16/0x18 [ 175.524201][ C1] ? vprintk_emit+0x2fe/0x3a0 [ 175.528866][ C1] ? vprintk_emit+0x368/0x3a0 [ 175.533547][ C1] vprintk_emit+0x36d/0x3a0 [ 175.538040][ C1] vprintk_default+0x28/0x30 [ 175.542702][ C1] vprintk_func+0x158/0x170 [ 175.547201][ C1] printk+0x62/0x8d [ 175.551001][ C1] ? addrconf_notify+0xd37/0x3c90 [ 175.556012][ C1] ? addrconf_notify+0x779/0x3c90 [ 175.561051][ C1] addrconf_notify+0x2c8d/0x3c90 [ 175.565984][ C1] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 175.571255][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 175.576613][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 175.582146][ C1] ? trace_hardirqs_on+0x74/0x80 [ 175.587072][ C1] ? __local_bh_enable_ip+0x13a/0x240 [ 175.592456][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 175.597992][ C1] ? tls_dev_event+0x619/0xc00 [ 175.602743][ C1] ? clusterip_netdev_event+0x48b/0x4a0 [ 175.608274][ C1] ? ip6mr_device_event+0x1ee/0x210 [ 175.613550][ C1] raw_notifier_call_chain+0xec/0x190 [ 175.618917][ C1] netdev_state_change+0x147/0x1f0 [ 175.624017][ C1] linkwatch_do_dev+0x10e/0x160 [ 175.628854][ C1] __linkwatch_run_queue+0x446/0x730 [ 175.634132][ C1] linkwatch_event+0x4c/0x60 [ 175.638711][ C1] process_one_work+0x7ef/0x10d0 [ 175.643747][ C1] worker_thread+0xc01/0x1630 [ 175.648434][ C1] kthread+0x332/0x350 [ 175.652488][ C1] ? rcu_lock_release+0x30/0x30 [ 175.657346][ C1] ? kthread_blkcg+0xe0/0xe0 [ 175.661929][ C1] ret_from_fork+0x24/0x30