[ 54.505511][ T23] audit: type=1800 audit(1578471378.125:25): pid=8370 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 54.525482][ T23] audit: type=1800 audit(1578471378.135:26): pid=8370 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.576124][ T23] audit: type=1800 audit(1578471378.135:27): pid=8370 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 54.599199][ T23] audit: type=1800 audit(1578471378.145:28): pid=8370 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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 '10.128.0.169' (ECDSA) to the list of known hosts. 2020/01/08 08:16:27 fuzzer started syzkaller login: [ 64.686865][ T8530] as (8530) used greatest stack depth: 23416 bytes left 2020/01/08 08:16:28 dialing manager at 10.128.0.26:35703 2020/01/08 08:16:28 syscalls: 2824 2020/01/08 08:16:28 code coverage: enabled 2020/01/08 08:16:28 comparison tracing: enabled 2020/01/08 08:16:28 extra coverage: enabled 2020/01/08 08:16:28 setuid sandbox: enabled 2020/01/08 08:16:28 namespace sandbox: enabled 2020/01/08 08:16:28 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 08:16:28 fault injection: enabled 2020/01/08 08:16:28 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 08:16:28 net packet injection: enabled 2020/01/08 08:16:28 net device setup: enabled 2020/01/08 08:16:28 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 08:16:28 devlink PCI setup: PCI device 0000:00:10.0 is not available 08:16:29 executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0x1ff}, 0x0) sched_setattr(0x0, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x3}, 0x0) syz_open_procfs(0xffffffffffffffff, &(0x7f0000000240)='status\x00') ioctl$KVM_GET_ONE_REG(0xffffffffffffffff, 0x4010aeab, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, @perf_config_ext, 0x0, 0x0, 0x0, 0x8}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = open(&(0x7f00000001c0)='./bus\x00', 0x141042, 0x0) write$P9_RREADLINK(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="a7724bdef64346bc14b8b0f781d1d3abf9d1a51c4bfce1e77551a8bd678625df08300200000040847bc2fdffe8cd918b035041291559f3ee3a46069062af9680d512f4d8a5c53f63c07a570820ded7e55e1f7b4d162c71a96921543e1133a2"], 0x5f) socket$inet6(0xa, 0x0, 0x0) sendfile(r0, r0, &(0x7f0000000000), 0x8080fffffffe) 08:16:30 executing program 1: perf_event_open(&(0x7f0000000180)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket$kcm(0xa, 0x2, 0x11) perf_event_open(&(0x7f0000000180)={0x1, 0x70, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000200)='cgroup.stat\x00', 0x26e1, 0x0) r1 = socket$kcm(0x2, 0x2, 0x0) setsockopt$sock_attach_bpf(r1, 0x1, 0x3e, &(0x7f00000002c0)=r0, 0x161) sendmsg$inet(r1, &(0x7f0000000240)={&(0x7f0000000080)={0x2, 0x4e22, @rand_addr=0x6}, 0x10, 0x0, 0x0, &(0x7f0000000040)=[@ip_retopts={{0x2c, 0x0, 0x7, {[@timestamp={0x44, 0x1c, 0x5, 0x3, 0x0, [0x0, 0x0, 0x0, 0x0, 0x0]}]}}}], 0x30}, 0x0) [ 66.537257][ T8537] IPVS: ftp: loaded support on port[0] = 21 [ 66.670592][ T8537] chnl_net:caif_netlink_parms(): no params data found [ 66.687998][ T8540] IPVS: ftp: loaded support on port[0] = 21 08:16:30 executing program 2: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$binfmt_aout(r3, &(0x7f00000019c0)=ANY=[@ANYBLOB='\x00'], 0x1) r4 = creat(&(0x7f0000000580)='./bus\x00', 0x0) splice(r2, 0x0, r4, &(0x7f00000000c0), 0x915, 0x0) [ 66.758309][ T8537] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.765830][ T8537] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.775499][ T8537] device bridge_slave_0 entered promiscuous mode [ 66.799391][ T8537] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.807013][ T8537] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.814814][ T8537] device bridge_slave_1 entered promiscuous mode [ 66.898606][ T8537] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.915983][ T8540] chnl_net:caif_netlink_parms(): no params data found [ 66.939995][ T8537] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 08:16:30 executing program 3: r0 = fsopen(&(0x7f00000000c0)='pipefs\x00', 0x0) fsconfig$FSCONFIG_CMD_RECONFIGURE(r0, 0x6, 0x0, 0x0, 0x0) close(r0) [ 67.008138][ T8537] team0: Port device team_slave_0 added [ 67.016652][ T8537] team0: Port device team_slave_1 added [ 67.033179][ T8540] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.052532][ T8540] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.060669][ T8540] device bridge_slave_0 entered promiscuous mode [ 67.088496][ T8540] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.097667][ T8543] IPVS: ftp: loaded support on port[0] = 21 [ 67.107979][ T8540] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.119374][ T8540] device bridge_slave_1 entered promiscuous mode [ 67.209534][ T8537] device hsr_slave_0 entered promiscuous mode 08:16:30 executing program 4: r0 = socket$inet6_sctp(0xa, 0x5, 0x84) r1 = socket$inet6_sctp(0xa, 0x5, 0x84) shutdown(r1, 0x0) getsockopt$inet_sctp6_SCTP_SOCKOPT_CONNECTX3(r1, 0x84, 0x6f, &(0x7f0000000000)={0x0, 0x1c, &(0x7f0000002880)=[@in6={0xa, 0x0, 0x0, @local, 0x3}]}, &(0x7f00000028c0)=0x10) r2 = socket$inet(0x2, 0x80001, 0x84) getsockopt$inet_sctp_SCTP_MAX_BURST(r2, 0x84, 0x14, &(0x7f0000000000)=@assoc_value={0x0}, &(0x7f0000000040)=0x8) setsockopt$inet_sctp6_SCTP_ADD_STREAMS(r0, 0x84, 0x79, &(0x7f00000011c0)={r3}, 0x8) [ 67.286348][ T8537] device hsr_slave_1 entered promiscuous mode [ 67.400061][ T8545] IPVS: ftp: loaded support on port[0] = 21 [ 67.434279][ T8540] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.483132][ T8540] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.501621][ T8548] IPVS: ftp: loaded support on port[0] = 21 08:16:31 executing program 5: creat(&(0x7f0000000080)='./file0\x00', 0x0) perf_event_open(&(0x7f000000a000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext, 0x0, 0x0, 0x45, 0x0, 0x20000000}, 0x0, 0x0, 0xffffffffffffffff, 0x0) connect$inet6(0xffffffffffffffff, &(0x7f0000000000)={0xa, 0x0, 0x0, @remote}, 0x1c) mount(0x0, &(0x7f00000000c0)='./file0\x00', &(0x7f0000000080)='nfs4\x00', 0x0, &(0x7f000000a000)) [ 67.603479][ T8543] chnl_net:caif_netlink_parms(): no params data found [ 67.616199][ T8540] team0: Port device team_slave_0 added [ 67.669001][ T8540] team0: Port device team_slave_1 added [ 67.723472][ T8543] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.732374][ T8543] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.740303][ T8543] device bridge_slave_0 entered promiscuous mode [ 67.758883][ T8537] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.827632][ T8543] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.834733][ T8543] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.842992][ T8543] device bridge_slave_1 entered promiscuous mode [ 67.865500][ T8550] IPVS: ftp: loaded support on port[0] = 21 [ 67.889014][ T8540] device hsr_slave_0 entered promiscuous mode [ 67.926465][ T8540] device hsr_slave_1 entered promiscuous mode [ 67.966212][ T8540] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.973989][ T8540] Cannot create hsr debugfs directory [ 67.997959][ T8537] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 68.050754][ T8543] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.093833][ T8537] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 68.149762][ T8537] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.209136][ T8543] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.231142][ T8543] team0: Port device team_slave_0 added [ 68.248094][ T8543] team0: Port device team_slave_1 added [ 68.255905][ T8545] chnl_net:caif_netlink_parms(): no params data found [ 68.358853][ T8543] device hsr_slave_0 entered promiscuous mode [ 68.396441][ T8543] device hsr_slave_1 entered promiscuous mode [ 68.456201][ T8543] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.463795][ T8543] Cannot create hsr debugfs directory [ 68.478373][ T8548] chnl_net:caif_netlink_parms(): no params data found [ 68.542204][ T8545] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.552420][ T8545] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.560307][ T8545] device bridge_slave_0 entered promiscuous mode [ 68.597677][ T8545] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.604762][ T8545] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.612934][ T8545] device bridge_slave_1 entered promiscuous mode [ 68.631386][ T8540] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 68.704623][ T8548] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.712272][ T8548] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.720768][ T8548] device bridge_slave_0 entered promiscuous mode [ 68.728954][ T8548] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.736103][ T8548] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.743677][ T8548] device bridge_slave_1 entered promiscuous mode [ 68.763117][ T8545] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.774431][ T8545] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.789638][ T8540] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 68.838685][ T8540] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 68.881807][ T8540] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 68.949928][ T8548] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.962612][ T8548] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.996796][ T8543] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 69.045091][ T8545] team0: Port device team_slave_0 added [ 69.057352][ T8543] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 69.098198][ T8543] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 69.134499][ T8545] team0: Port device team_slave_1 added [ 69.149526][ T8548] team0: Port device team_slave_0 added [ 69.157415][ T8543] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.219944][ T8548] team0: Port device team_slave_1 added [ 69.258847][ T8545] device hsr_slave_0 entered promiscuous mode [ 69.316416][ T8545] device hsr_slave_1 entered promiscuous mode [ 69.356158][ T8545] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.363717][ T8545] Cannot create hsr debugfs directory [ 69.371880][ T8550] chnl_net:caif_netlink_parms(): no params data found [ 69.445113][ T8550] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.452945][ T8550] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.460899][ T8550] device bridge_slave_0 entered promiscuous mode [ 69.470237][ T8550] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.477430][ T8550] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.485018][ T8550] device bridge_slave_1 entered promiscuous mode [ 69.549151][ T8548] device hsr_slave_0 entered promiscuous mode [ 69.606952][ T8548] device hsr_slave_1 entered promiscuous mode [ 69.646190][ T8548] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.653772][ T8548] Cannot create hsr debugfs directory [ 69.697516][ T8550] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.723162][ T8537] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.747885][ T8550] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.766555][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.774808][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.786956][ T8537] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.828484][ T8540] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.842275][ T8550] team0: Port device team_slave_0 added [ 69.865827][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.880051][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.888856][ T2793] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.896069][ T2793] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.903984][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.914850][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.923290][ T2793] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.930348][ T2793] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.938266][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.958478][ T8550] team0: Port device team_slave_1 added [ 69.968975][ T8548] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.007489][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.015932][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.024876][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.033789][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.042189][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.057371][ T8545] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 70.109922][ T8548] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.168162][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.178398][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.187108][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.194674][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.213835][ T8543] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.222203][ T8540] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.232053][ T8545] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 70.258577][ T8545] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 70.297413][ T8548] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 70.341886][ T8537] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.352789][ T8537] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.372141][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.380903][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.389918][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.398290][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.418340][ T8543] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.425398][ T8545] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 70.449507][ T8548] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 70.540003][ T8550] device hsr_slave_0 entered promiscuous mode [ 70.596449][ T8550] device hsr_slave_1 entered promiscuous mode [ 70.656153][ T8550] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.663721][ T8550] Cannot create hsr debugfs directory [ 70.670173][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.679319][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.688016][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.696826][ T2691] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.703860][ T2691] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.711563][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.720294][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.728766][ T2691] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.735791][ T2691] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.743328][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.750945][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.758670][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.767434][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.828039][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.837771][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.845999][ T3103] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.853085][ T3103] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.861942][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.870461][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.879171][ T3103] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.886261][ T3103] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.893792][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.902277][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.911174][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.920724][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.929720][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.937602][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.976683][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.985194][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.994876][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.003400][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.012305][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.021111][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.029626][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.038053][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.046767][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.055074][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.062632][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.076823][ T8540] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.088445][ T8540] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.112939][ T8537] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.124331][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.132344][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.141678][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.150195][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.158567][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.190253][ T8543] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.202213][ T8543] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.222291][ T2721] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.230713][ T2721] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.245533][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.256825][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.283172][ T8550] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 71.327875][ T8550] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 71.388362][ T8550] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 71.453062][ T8548] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.460168][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.469444][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.479869][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.487760][ T2793] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.505248][ T8537] device veth0_vlan entered promiscuous mode [ 71.521177][ T8540] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.529235][ T8550] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 71.598071][ T8548] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.604878][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.613054][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.622085][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.630253][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.643758][ T8537] device veth1_vlan entered promiscuous mode [ 71.664309][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.672118][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.680405][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.688983][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.705292][ T8543] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.719889][ T8545] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.729864][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.739991][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.749407][ T2691] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.756585][ T2691] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.765388][ T2691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.799191][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.808378][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.818586][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.829401][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.839223][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.848348][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.857248][ T3103] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.864274][ T3103] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.873087][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.881575][ T3103] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.894792][ T8545] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.921278][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.931159][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.958914][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.967542][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.975823][ T2734] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.982908][ T2734] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.991082][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 72.000533][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.009668][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 72.018513][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 72.041594][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 72.062904][ T2734] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 177.026008][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 177.032883][ C0] rcu: 0-...!: (1 GPs behind) idle=7da/1/0x4000000000000002 softirq=14733/14737 fqs=2 [ 177.042742][ C0] (t=10500 jiffies g=6841 q=63) [ 177.047697][ C0] rcu: rcu_preempt kthread starved for 10496 jiffies! g6841 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 177.058781][ C0] rcu: RCU grace-period kthread stack dump: [ 177.064684][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 177.072585][ C0] Call Trace: [ 177.075866][ C0] __schedule+0x9a0/0xcc0 [ 177.080192][ C0] schedule+0x181/0x210 [ 177.084342][ C0] schedule_timeout+0x14f/0x240 [ 177.089185][ C0] ? run_local_timers+0x120/0x120 [ 177.094204][ C0] rcu_gp_kthread+0xed8/0x1770 [ 177.098964][ C0] kthread+0x332/0x350 [ 177.103019][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 177.108119][ C0] ? kthread_blkcg+0xe0/0xe0 [ 177.112700][ C0] ret_from_fork+0x24/0x30 [ 177.117117][ C0] NMI backtrace for cpu 0 [ 177.121437][ C0] CPU: 0 PID: 8506 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 177.129247][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 177.139287][ C0] Call Trace: [ 177.142573][ C0] [ 177.145435][ C0] dump_stack+0x1fb/0x318 [ 177.149756][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 177.154596][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 177.160740][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 177.166798][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 177.172789][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 177.178666][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 177.183798][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 177.188989][ C0] ? trace_hardirqs_off+0x74/0x80 [ 177.194011][ C0] update_process_times+0x12d/0x180 [ 177.199202][ C0] tick_sched_timer+0x263/0x420 [ 177.204044][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 177.209667][ C0] __hrtimer_run_queues+0x403/0x840 [ 177.214873][ C0] hrtimer_interrupt+0x38c/0xda0 [ 177.219817][ C0] ? debug_smp_processor_id+0x9/0x20 [ 177.225098][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 177.230634][ C0] apic_timer_interrupt+0xf/0x20 [ 177.235558][ C0] [ 177.238489][ C0] RIP: 0010:mod_memcg_page_state+0x2b/0x190 [ 177.244371][ C0] Code: 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 ba 27 2e 00 48 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df <42> 80 3c 20 00 74 08 48 89 df e8 e6 8f 6a 00 48 8b 1b 48 85 db 0f [ 177.263961][ C0] RSP: 0018:ffffc90001c57730 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 [ 177.272398][ C0] RAX: 1ffffd40004b9f7f RBX: ffffea00025cfbf8 RCX: ffff88808af882c0 [ 177.280361][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00025cfbc0 [ 177.288348][ C0] RBP: ffffc90001c57750 R08: 000000000003a728 R09: ffffed1011e82739 [ 177.296407][ C0] R10: ffffed1011e82739 R11: 0000000000000000 R12: dffffc0000000000 [ 177.304500][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff88808f4139b8 [ 177.312599][ C0] free_thread_stack+0x168/0x590 [ 177.317549][ C0] put_task_stack+0xa3/0x130 [ 177.322130][ C0] finish_task_switch+0x3f1/0x550 [ 177.327174][ C0] __schedule+0x9a8/0xcc0 [ 177.331520][ C0] schedule+0x181/0x210 [ 177.335677][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 177.341747][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 177.347548][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 177.352915][ C0] poll_schedule_timeout+0x11c/0x1c0 [ 177.358194][ C0] do_sys_poll+0x83f/0x1250 [ 177.362749][ C0] ? debug_object_activate+0x2f7/0x6f0 [ 177.368199][ C0] ? debug_object_active_state+0x1e3/0x4a0 [ 177.374009][ C0] ? __lock_acquire+0xc75/0x1be0 [ 177.379026][ C0] ? __x32_compat_sys_ppoll_time64+0xd0/0xd0 [ 177.385031][ C0] ? trace_hardirqs_on+0x74/0x80 [ 177.389965][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 177.394757][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 177.399528][ C0] ? read_seqcount_begin+0x125/0x1c0 [ 177.404809][ C0] ? trace_hardirqs_on+0x74/0x80 [ 177.409909][ C0] ? ktime_get_ts64+0x6e/0x2c0 [ 177.414659][ C0] ? read_seqcount_begin+0x17a/0x1c0 [ 177.419933][ C0] ? ktime_get_ts64+0x240/0x2c0 [ 177.424773][ C0] ? timespec64_add_safe+0x171/0x1b0 [ 177.430050][ C0] __se_sys_poll+0x1b0/0x360 [ 177.434635][ C0] __x64_sys_poll+0x7b/0x90 [ 177.439127][ C0] do_syscall_64+0xf7/0x1c0 [ 177.443626][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 177.449525][ C0] RIP: 0033:0x7efe91562678 [ 177.453954][ C0] Code: 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 48 83 ec 28 8b 05 82 8f 2b 00 85 c0 75 17 48 63 d2 b8 07 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 48 83 c4 28 c3 89 54 24 08 48 89 74 24 10 [ 177.473557][ C0] RSP: 002b:00007fffe4db0140 EFLAGS: 00000246 ORIG_RAX: 0000000000000007 [ 177.481974][ C0] RAX: ffffffffffffffda RBX: 20c49ba5e353f7cf RCX: 00007efe91562678 [ 177.489934][ C0] RDX: 000000000000ee38 RSI: 0000000000000001 RDI: 00007fffe4db0200 [ 177.497897][ C0] RBP: 0000000000000000 R08: 00007fffe4db0150 R09: 00007fffe4dd20b8 [ 177.505858][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000024e5410 [ 177.518677][ C0] R13: 000000000000216b R14: 00007fffe4db01d4 R15: 00000000024cc250