[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 55.407128][ T24] audit: type=1800 audit(1578456831.434:25): pid=8548 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 55.438398][ T24] audit: type=1800 audit(1578456831.434:26): pid=8548 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 55.458559][ T24] audit: type=1800 audit(1578456831.434:27): pid=8548 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 '10.128.1.5' (ECDSA) to the list of known hosts. 2020/01/08 04:14:02 fuzzer started 2020/01/08 04:14:04 dialing manager at 10.128.0.26:35703 2020/01/08 04:14:04 syscalls: 2824 2020/01/08 04:14:04 code coverage: enabled 2020/01/08 04:14:04 comparison tracing: enabled 2020/01/08 04:14:04 extra coverage: enabled 2020/01/08 04:14:04 setuid sandbox: enabled 2020/01/08 04:14:04 namespace sandbox: enabled 2020/01/08 04:14:04 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 04:14:04 fault injection: enabled 2020/01/08 04:14:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 04:14:04 net packet injection: enabled 2020/01/08 04:14:04 net device setup: enabled 2020/01/08 04:14:04 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 04:14:04 devlink PCI setup: PCI device 0000:00:10.0 is not available 04:14:05 executing program 0: r0 = socket$kcm(0x2b, 0x1, 0x0) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) sendmsg$kcm(0xffffffffffffffff, &(0x7f0000000140)={&(0x7f0000000040)=@l2={0x1f, 0xffffdd86}, 0x80, 0x0}, 0x0) r1 = socket$kcm(0x11, 0x3, 0x0) sendmsg$kcm(r1, &(0x7f0000000100)={&(0x7f0000000040)=@nfc={0x27, 0x3}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000300)="0500000023002c0000068900ac14140de00000013c31b47d0510c147885b6e765e30637ec921f605", 0x5c4}], 0x1, 0x0, 0x0, 0x50}, 0x0) 04:14:05 executing program 1: r0 = syz_open_dev$mouse(&(0x7f00000002c0)='/dev/input/mouse#\x00', 0x0, 0x0) fcntl$setstatus(r0, 0x4, 0x2000) syzkaller login: [ 69.347256][ T8714] IPVS: ftp: loaded support on port[0] = 21 04:14:05 executing program 2: bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x1, 0x4, &(0x7f0000001fd8)=@framed={{0xffffffb7, 0x0, 0x0, 0x0, 0x0, 0x6f, 0x0, 0x300}, [@alu={0x7}]}, &(0x7f0000003ff6)='GPL\x00', 0x1, 0xb579, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0xffffffffffffffab}, 0x48) [ 69.518756][ T8714] chnl_net:caif_netlink_parms(): no params data found [ 69.601520][ T8717] IPVS: ftp: loaded support on port[0] = 21 [ 69.627436][ T8714] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.641354][ T8714] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.661144][ T8714] device bridge_slave_0 entered promiscuous mode [ 69.702575][ T8714] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.709826][ T8714] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.720728][ T8714] device bridge_slave_1 entered promiscuous mode [ 69.780029][ T8714] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.797527][ T8719] IPVS: ftp: loaded support on port[0] = 21 [ 69.803707][ T8714] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 04:14:05 executing program 3: r0 = socket$kcm(0x10, 0x2, 0x0) sendmsg$kcm(r0, &(0x7f0000000000)={0x0, 0x2000000, &(0x7f0000000080)=[{&(0x7f0000000200)="d800000018008100e00f80ecdb4cb9040a1d65ef0b007c05e87c55a1bc000900b8004099100000000500150006008178a8001600400003c00600020003ac040000d67f6f94007134cf6efb8000a007a290457f0189b316277ce06bbace8017cbec4c2ee5a7cef4090000001fb791643a5ee4ce1b14d6d930dfe1d9d322fe04000000730d16a4683e4f6d0200003f5aeb4edbb57a5025ccca9e00360db798262f3d40fad95667e04adcdf634c1f215ce3089ad809d5e1cace81ed0b7fece0b42a9ecbee5de6ccd40dd6e4edef3d93452a92307f27260e9703", 0xd8}], 0x1}, 0x0) [ 69.865237][ T8714] team0: Port device team_slave_0 added [ 69.930758][ T8714] team0: Port device team_slave_1 added [ 70.023893][ T8714] device hsr_slave_0 entered promiscuous mode 04:14:06 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000200)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) syz_kvm_setup_cpu$x86(0xffffffffffffffff, 0xffffffffffffffff, &(0x7f0000029000/0x18000)=nil, &(0x7f0000000240)=[@text32={0x20, &(0x7f00000000c0)="b9800000c00f3235010000000f309a090000006500660f3882af724d00002ed8ddc74424008fc4bd87c7442402c43a727fc7442406000000000f011424f30f090f013a360f06c4c18d72d68366baa100ed", 0x51}], 0x1, 0x0, 0x0, 0xa4) r2 = ioctl$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, &(0x7f0000000540)={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xc5e]}) ioctl$KVM_RUN(r2, 0xae80, 0x0) getsockopt$inet_sctp6_SCTP_PEER_ADDR_THLDS(0xffffffffffffffff, 0x84, 0x1f, &(0x7f0000000140)={0x0, @in6={{0xa, 0x0, 0x0, @empty}}}, &(0x7f0000000080)=0x90) perf_event_open(&(0x7f0000000000)={0x1, 0x70, 0x3, 0x0, 0x0, 0x1f, 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, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 70.210133][ T8714] device hsr_slave_1 entered promiscuous mode [ 70.278791][ T8722] IPVS: ftp: loaded support on port[0] = 21 [ 70.311940][ T8717] chnl_net:caif_netlink_parms(): no params data found [ 70.365811][ T8724] IPVS: ftp: loaded support on port[0] = 21 04:14:06 executing program 5: r0 = socket$kcm(0xa, 0x5, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8993, &(0x7f0000000000)={'tunl0\x00', @empty=[0x0, 0x0, 0x43]}) [ 70.408258][ T8719] chnl_net:caif_netlink_parms(): no params data found [ 70.559332][ T8717] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.572353][ T8717] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.581323][ T8717] device bridge_slave_0 entered promiscuous mode [ 70.591352][ T8717] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.598457][ T8717] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.606078][ T8717] device bridge_slave_1 entered promiscuous mode [ 70.613376][ T8714] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 70.654517][ T8714] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 70.712427][ T8719] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.719495][ T8719] bridge0: port 1(bridge_slave_0) entered disabled state [ 70.727418][ T8719] device bridge_slave_0 entered promiscuous mode [ 70.736263][ T8719] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.743701][ T8719] bridge0: port 2(bridge_slave_1) entered disabled state [ 70.752372][ T8719] device bridge_slave_1 entered promiscuous mode [ 70.785607][ T8714] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 70.832827][ T8714] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 70.841900][ T8727] IPVS: ftp: loaded support on port[0] = 21 [ 70.892311][ T8717] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.919190][ T8722] chnl_net:caif_netlink_parms(): no params data found [ 70.931758][ T8717] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 70.943314][ T8719] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 70.977594][ T8717] team0: Port device team_slave_0 added [ 70.987285][ T8719] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.026521][ T8717] team0: Port device team_slave_1 added [ 71.052292][ T8719] team0: Port device team_slave_0 added [ 71.060969][ T8722] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.068087][ T8722] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.075866][ T8722] device bridge_slave_0 entered promiscuous mode [ 71.084829][ T8722] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.092012][ T8722] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.099575][ T8722] device bridge_slave_1 entered promiscuous mode [ 71.140420][ T8719] team0: Port device team_slave_1 added [ 71.156985][ T8722] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.170447][ T8722] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.243260][ T8717] device hsr_slave_0 entered promiscuous mode [ 71.300244][ T8717] device hsr_slave_1 entered promiscuous mode [ 71.340038][ T8717] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.347913][ T8717] Cannot create hsr debugfs directory [ 71.369080][ T8724] chnl_net:caif_netlink_parms(): no params data found [ 71.402841][ T8719] device hsr_slave_0 entered promiscuous mode [ 71.440932][ T8719] device hsr_slave_1 entered promiscuous mode [ 71.499962][ T8719] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.507524][ T8719] Cannot create hsr debugfs directory [ 71.535737][ T8722] team0: Port device team_slave_0 added [ 71.545313][ T8722] team0: Port device team_slave_1 added [ 71.625171][ T8724] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.632665][ T8724] bridge0: port 1(bridge_slave_0) entered disabled state [ 71.640731][ T8724] device bridge_slave_0 entered promiscuous mode [ 71.648624][ T8724] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.655862][ T8724] bridge0: port 2(bridge_slave_1) entered disabled state [ 71.664011][ T8724] device bridge_slave_1 entered promiscuous mode [ 71.721676][ T8722] device hsr_slave_0 entered promiscuous mode [ 71.760208][ T8722] device hsr_slave_1 entered promiscuous mode [ 71.829916][ T8722] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 71.837493][ T8722] Cannot create hsr debugfs directory [ 71.878328][ T8724] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 71.918388][ T8724] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 71.946408][ T8727] chnl_net:caif_netlink_parms(): no params data found [ 72.009616][ T8714] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.021482][ T8727] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.028553][ T8727] bridge0: port 1(bridge_slave_0) entered disabled state [ 72.036567][ T8727] device bridge_slave_0 entered promiscuous mode [ 72.047018][ T8727] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.054232][ T8727] bridge0: port 2(bridge_slave_1) entered disabled state [ 72.062997][ T8727] device bridge_slave_1 entered promiscuous mode [ 72.079152][ T8724] team0: Port device team_slave_0 added [ 72.085190][ T8719] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 72.163186][ T8724] team0: Port device team_slave_1 added [ 72.170037][ T8719] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 72.215833][ T8719] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 72.310396][ T8727] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 72.319646][ T8717] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 72.361744][ T8719] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 72.404623][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 72.414923][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 72.425493][ T8714] 8021q: adding VLAN 0 to HW filter on device team0 [ 72.440198][ T8727] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 72.450210][ T8717] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 72.515409][ T8717] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 72.564173][ T8717] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 72.662667][ T8724] device hsr_slave_0 entered promiscuous mode [ 72.690176][ T8724] device hsr_slave_1 entered promiscuous mode [ 72.729860][ T8724] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 72.737422][ T8724] Cannot create hsr debugfs directory [ 72.755841][ T8727] team0: Port device team_slave_0 added [ 72.768890][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.777869][ T3067] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 72.786648][ T3067] bridge0: port 1(bridge_slave_0) entered blocking state [ 72.793812][ T3067] bridge0: port 1(bridge_slave_0) entered forwarding state [ 72.821455][ T8727] team0: Port device team_slave_1 added [ 72.835809][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.866196][ T8722] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 72.912268][ T8722] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 72.974150][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.982732][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 72.991133][ T3068] bridge0: port 2(bridge_slave_1) entered blocking state [ 72.998172][ T3068] bridge0: port 2(bridge_slave_1) entered forwarding state [ 73.005915][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 73.051928][ T8727] device hsr_slave_0 entered promiscuous mode [ 73.100233][ T8727] device hsr_slave_1 entered promiscuous mode [ 73.140007][ T8727] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 73.147589][ T8727] Cannot create hsr debugfs directory [ 73.153453][ T8722] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 73.202367][ T8722] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 73.239547][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 73.249312][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 73.258037][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 73.266778][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 73.318090][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 73.327436][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 73.346214][ T8714] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 73.357231][ T8714] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 73.380131][ T8724] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 73.416011][ T8724] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 73.451936][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 73.460440][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 73.469039][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 73.477466][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 73.485927][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 73.511061][ T8724] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 73.559192][ T8724] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 73.629543][ T8714] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 73.654530][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 73.663495][ T2910] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 73.723503][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 73.734550][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 73.777133][ T8719] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.804659][ T8722] 8021q: adding VLAN 0 to HW filter on device bond0 [ 73.811985][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 73.820900][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 73.829451][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 73.837692][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 73.847288][ T8727] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 73.902462][ T8727] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 73.942489][ T8727] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 73.984983][ T8717] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.006191][ T8717] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.015394][ T8727] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 74.070634][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.078569][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.090729][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.098385][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.107106][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.116349][ T2926] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.125546][ T2926] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.132653][ T2926] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.140720][ T8714] device veth0_vlan entered promiscuous mode [ 74.147410][ T2918] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.167887][ T8722] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.182543][ T2918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 74.190584][ T2918] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 74.198861][ T2918] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.208738][ T2918] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.217376][ T2918] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.224830][ T2918] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.235496][ T8719] 8021q: adding VLAN 0 to HW filter on device team0 [ 74.252826][ T8714] device veth1_vlan entered promiscuous mode [ 74.271190][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.282898][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.292347][ T3068] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.299496][ T3068] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.308708][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 74.317636][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 74.326071][ T3068] bridge0: port 1(bridge_slave_0) entered blocking state [ 74.333158][ T3068] bridge0: port 1(bridge_slave_0) entered forwarding state [ 74.341268][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.350181][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.358526][ T3068] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.365605][ T3068] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.373386][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.382239][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.393375][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.401290][ T3068] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 74.435683][ T8724] 8021q: adding VLAN 0 to HW filter on device bond0 [ 74.460118][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 74.468854][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 74.479231][ T3030] bridge0: port 2(bridge_slave_1) entered blocking state [ 74.486345][ T3030] bridge0: port 2(bridge_slave_1) entered forwarding state [ 74.495113][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 74.504598][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.514411][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 74.523569][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 74.532346][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 74.541169][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 74.549639][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 74.601494][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 74.629079][ T3030] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 179.649723][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 179.656546][ C0] rcu: 0-...!: (1 GPs behind) idle=d9a/1/0x4000000000000002 softirq=14066/14067 fqs=148 [ 179.666601][ C0] (t=10501 jiffies g=7269 q=125) [ 179.671630][ C0] rcu: rcu_preempt kthread starved for 10206 jiffies! g7269 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 179.682716][ C0] rcu: RCU grace-period kthread stack dump: [ 179.688619][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 179.696550][ C0] Call Trace: [ 179.699837][ C0] __schedule+0x9a0/0xcc0 [ 179.704166][ C0] schedule+0x181/0x210 [ 179.708318][ C0] schedule_timeout+0x14f/0x240 [ 179.713161][ C0] ? run_local_timers+0x120/0x120 [ 179.718186][ C0] rcu_gp_kthread+0xed8/0x1770 [ 179.722953][ C0] kthread+0x332/0x350 [ 179.727033][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 179.732135][ C0] ? kthread_blkcg+0xe0/0xe0 [ 179.736721][ C0] ret_from_fork+0x24/0x30 [ 179.741141][ C0] NMI backtrace for cpu 0 [ 179.745462][ C0] CPU: 0 PID: 3030 Comm: kworker/0:60 Not tainted 5.5.0-rc5-syzkaller #0 [ 179.753853][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 179.764533][ C0] Workqueue: events linkwatch_event [ 179.769728][ C0] Call Trace: [ 179.773008][ C0] [ 179.775877][ C0] dump_stack+0x1fb/0x318 [ 179.780199][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 179.785038][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 179.791182][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 179.797240][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 179.803214][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 179.809187][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 179.814306][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 179.819502][ C0] ? trace_hardirqs_off+0x74/0x80 [ 179.824521][ C0] update_process_times+0x12d/0x180 [ 179.829717][ C0] tick_sched_timer+0x263/0x420 [ 179.834562][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 179.840194][ C0] __hrtimer_run_queues+0x403/0x840 [ 179.845402][ C0] hrtimer_interrupt+0x38c/0xda0 [ 179.850880][ C0] ? debug_smp_processor_id+0x9/0x20 [ 179.856280][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 179.861841][ C0] apic_timer_interrupt+0xf/0x20 [ 179.866784][ C0] [ 179.869731][ C0] RIP: 0010:__memcg_kmem_uncharge+0x6/0x1a0 [ 179.875616][ C0] Code: bf ac 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 8c 85 ff ff 5b 41 5e 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 <41> 56 41 55 41 54 53 50 89 f3 49 89 fc 48 b8 00 00 00 00 00 fc ff [ 179.895212][ C0] RSP: 0018:ffffc90008daf6e8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 179.903611][ C0] RAX: ffffffff81489244 RBX: ffffea0002887f80 RCX: ffff88809e76c3c0 [ 179.911569][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002887f80 [ 179.919530][ C0] RBP: ffffc90008daf6f0 R08: dffffc0000000000 R09: fffffbfff124248a [ 179.927491][ C0] R10: fffffbfff124248a R11: 0000000000000000 R12: ffff888095469420 [ 179.935453][ C0] R13: dffffc0000000000 R14: 1ffff11012a8d284 R15: ffff8880a44ab7b8 [ 179.943426][ C0] ? free_thread_stack+0x124/0x590 [ 179.948534][ C0] free_thread_stack+0x12e/0x590 [ 179.953460][ C0] put_task_stack+0xa3/0x130 [ 179.958035][ C0] finish_task_switch+0x3f1/0x550 [ 179.963052][ C0] __schedule+0x9a8/0xcc0 [ 179.967380][ C0] ? ___preempt_schedule+0x16/0x18 [ 179.972479][ C0] preempt_schedule+0xdb/0x120 [ 179.977232][ C0] ___preempt_schedule+0x16/0x18 [ 179.982597][ C0] ? vprintk_emit+0x2fe/0x3a0 [ 179.987259][ C0] ? vprintk_emit+0x368/0x3a0 [ 179.991928][ C0] vprintk_emit+0x36d/0x3a0 [ 179.996423][ C0] vprintk_default+0x28/0x30 [ 180.001006][ C0] vprintk_func+0x158/0x170 [ 180.005584][ C0] printk+0x62/0x8d [ 180.009403][ C0] ? addrconf_notify+0xd37/0x3c90 [ 180.014438][ C0] ? addrconf_notify+0x779/0x3c90 [ 180.019583][ C0] addrconf_notify+0x2c8d/0x3c90 [ 180.024721][ C0] ? lockdep_hardirqs_on+0x3c5/0x7d0 [ 180.030005][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 180.035676][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 180.041475][ C0] ? trace_hardirqs_on+0x74/0x80 [ 180.046413][ C0] ? __local_bh_enable_ip+0x13a/0x240 [ 180.051779][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 180.057313][ C0] ? tls_dev_event+0x619/0xc00 [ 180.064175][ C0] ? clusterip_netdev_event+0x48b/0x4a0 [ 180.069805][ C0] ? ip6mr_device_event+0x1ee/0x210 [ 180.075966][ C0] raw_notifier_call_chain+0xec/0x190 [ 180.081351][ C0] netdev_state_change+0x147/0x1f0 [ 180.086461][ C0] linkwatch_do_dev+0x10e/0x160 [ 180.091329][ C0] __linkwatch_run_queue+0x446/0x730 [ 180.096640][ C0] linkwatch_event+0x4c/0x60 [ 180.101226][ C0] process_one_work+0x7ef/0x10d0 [ 180.106167][ C0] worker_thread+0xc01/0x1630 [ 180.111553][ C0] kthread+0x332/0x350 [ 180.115627][ C0] ? rcu_lock_release+0x30/0x30 [ 180.120468][ C0] ? kthread_blkcg+0xe0/0xe0 [ 180.125053][ C0] ret_from_fork+0x24/0x30