[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 50.181780][ T25] audit: type=1800 audit(1575440741.276:25): pid=8305 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 50.213218][ T25] audit: type=1800 audit(1575440741.286:26): pid=8305 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 50.247884][ T25] audit: type=1800 audit(1575440741.286:27): pid=8305 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 '10.128.1.27' (ECDSA) to the list of known hosts. 2019/12/04 06:25:49 fuzzer started 2019/12/04 06:25:50 dialing manager at 10.128.0.26:42111 2019/12/04 06:25:50 syscalls: 2689 2019/12/04 06:25:50 code coverage: enabled 2019/12/04 06:25:50 comparison tracing: enabled 2019/12/04 06:25:50 extra coverage: extra coverage is not supported by the kernel 2019/12/04 06:25:50 setuid sandbox: enabled 2019/12/04 06:25:50 namespace sandbox: enabled 2019/12/04 06:25:50 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 06:25:50 fault injection: enabled 2019/12/04 06:25:50 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 06:25:50 net packet injection: enabled 2019/12/04 06:25:50 net device setup: enabled 2019/12/04 06:25:50 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 06:25:50 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:25:51 executing program 0: utimes(0x0, &(0x7f00000000c0)={{0x0, 0xffffffff}}) 06:25:51 executing program 1: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$inet6_tcp_int(r0, 0x6, 0x13, &(0x7f00000000c0)=0x100000001, 0x4) connect$inet6(r0, &(0x7f0000000180)={0xa, 0x0, 0x0, @loopback}, 0x1c) perf_event_open(&(0x7f0000000340)={0x2, 0x70, 0xeb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) setsockopt$inet6_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000340)='tls\x00', 0x4) close(r0) syzkaller login: [ 60.753207][ T8470] IPVS: ftp: loaded support on port[0] = 21 [ 60.818097][ T8472] IPVS: ftp: loaded support on port[0] = 21 06:25:52 executing program 2: r0 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt$IP_VS_SO_SET_FLUSH(r0, 0x84, 0x24, 0x50500000000000, 0x3000000) [ 60.997155][ T8470] chnl_net:caif_netlink_parms(): no params data found [ 61.052872][ T8472] chnl_net:caif_netlink_parms(): no params data found [ 61.119424][ T8470] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.128205][ T8470] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.136621][ T8470] device bridge_slave_0 entered promiscuous mode [ 61.145779][ T8472] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.152880][ T8472] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.161792][ T8472] device bridge_slave_0 entered promiscuous mode [ 61.187028][ T8470] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.194430][ T8470] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.203318][ T8470] device bridge_slave_1 entered promiscuous mode 06:25:52 executing program 3: r0 = socket$packet(0x11, 0x3, 0x300) setsockopt$packet_fanout(r0, 0x107, 0x12, &(0x7f0000000080)={0x0, 0x1}, 0x4) socketpair$unix(0x1, 0x40000000000001, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) r2 = socket$inet_tcp(0x2, 0x1, 0x0) r3 = fcntl$dupfd(r1, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) r4 = socket$inet6(0xa, 0x2, 0x0) connect$inet6(r4, &(0x7f0000000040)={0xa, 0x0, 0x0, @rand_addr="000000000000000000000000001300"}, 0x1c) sendmmsg(r4, &(0x7f000000ac80), 0x800000000000273, 0x0) [ 61.227367][ T8472] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.234930][ T8472] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.243915][ T8472] device bridge_slave_1 entered promiscuous mode [ 61.274812][ T8470] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.308591][ T8476] IPVS: ftp: loaded support on port[0] = 21 [ 61.321764][ T8470] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.339532][ T8472] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.378186][ T8472] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.421598][ T8470] team0: Port device team_slave_0 added [ 61.448665][ T8470] team0: Port device team_slave_1 added [ 61.459936][ T8472] team0: Port device team_slave_0 added [ 61.494919][ T8472] team0: Port device team_slave_1 added 06:25:52 executing program 4: bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x8, 0x3, &(0x7f0000000040)=@framed={{0x19}}, &(0x7f00000000c0)='GPL\x00', 0x4, 0x1000, &(0x7f000062b000)=""/4096, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 61.588171][ T8470] device hsr_slave_0 entered promiscuous mode [ 61.618283][ T8470] device hsr_slave_1 entered promiscuous mode [ 61.766988][ T8479] IPVS: ftp: loaded support on port[0] = 21 [ 61.797766][ T8472] device hsr_slave_0 entered promiscuous mode 06:25:52 executing program 5: prctl$PR_SET_PTRACER(0x59616d61, 0xffffffffffffffff) clone(0x100, 0x0, 0xfffffffffffffffe, 0x0, 0xffffffffffffffff) r0 = gettid() wait4(0x0, 0x0, 0x80000002, 0x0) ptrace$setopts(0x4206, r0, 0x0, 0x0) tkill(r0, 0x3c) r1 = gettid() socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = fcntl$dupfd(r3, 0x0, r2) ioctl$PERF_EVENT_IOC_ENABLE(r4, 0x8912, 0x400200) read$eventfd(r4, &(0x7f0000000000), 0x8) ptrace$setopts(0x4206, r1, 0x0, 0x0) tkill(r1, 0x3c) ptrace$cont(0x18, r1, 0x0, 0x0) [ 61.875529][ T8472] device hsr_slave_1 entered promiscuous mode [ 61.906965][ T8472] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.920315][ T8476] chnl_net:caif_netlink_parms(): no params data found [ 61.944097][ T8481] IPVS: ftp: loaded support on port[0] = 21 [ 61.980041][ T8470] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 62.030651][ T8470] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.081302][ T8470] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 62.150549][ T8470] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 62.217488][ T8476] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.225827][ T8476] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.235665][ T8476] device bridge_slave_0 entered promiscuous mode [ 62.253935][ T8472] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 62.254027][ T8483] IPVS: ftp: loaded support on port[0] = 21 [ 62.328342][ T8476] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.335636][ T8476] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.343640][ T8476] device bridge_slave_1 entered promiscuous mode [ 62.358599][ T8472] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 62.410912][ T8472] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 62.508400][ T8472] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 62.593471][ T8476] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.605639][ T8476] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.671526][ T8476] team0: Port device team_slave_0 added [ 62.682299][ T8476] team0: Port device team_slave_1 added [ 62.733393][ T8481] chnl_net:caif_netlink_parms(): no params data found [ 62.878282][ T8476] device hsr_slave_0 entered promiscuous mode [ 62.925505][ T8476] device hsr_slave_1 entered promiscuous mode [ 62.985269][ T8476] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.001074][ T8483] chnl_net:caif_netlink_parms(): no params data found [ 63.061692][ T8479] chnl_net:caif_netlink_parms(): no params data found [ 63.099807][ T8483] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.107761][ T8483] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.116136][ T8483] device bridge_slave_0 entered promiscuous mode [ 63.134679][ T8481] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.142029][ T8481] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.150226][ T8481] device bridge_slave_0 entered promiscuous mode [ 63.159304][ T8483] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.167077][ T8483] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.174868][ T8483] device bridge_slave_1 entered promiscuous mode [ 63.200173][ T8483] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.211685][ T8483] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.228166][ T8481] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.236920][ T8481] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.248305][ T8481] device bridge_slave_1 entered promiscuous mode [ 63.271254][ T8481] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.280679][ T8476] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 63.343550][ T8479] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.351413][ T8479] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.359477][ T8479] device bridge_slave_0 entered promiscuous mode [ 63.370126][ T8481] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.380020][ T8476] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 63.433788][ T8483] team0: Port device team_slave_0 added [ 63.441509][ T8479] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.449240][ T8479] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.457476][ T8479] device bridge_slave_1 entered promiscuous mode [ 63.471786][ T8476] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 63.528934][ T8483] team0: Port device team_slave_1 added [ 63.534934][ T8476] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 63.595450][ T8481] team0: Port device team_slave_0 added [ 63.603899][ T8481] team0: Port device team_slave_1 added [ 63.619348][ T8472] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.678254][ T8483] device hsr_slave_0 entered promiscuous mode [ 63.735696][ T8483] device hsr_slave_1 entered promiscuous mode [ 63.785391][ T8483] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.795278][ T8479] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.806408][ T8479] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.821553][ T8470] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.919928][ T8481] device hsr_slave_0 entered promiscuous mode [ 63.966208][ T8481] device hsr_slave_1 entered promiscuous mode [ 64.015417][ T8481] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.063171][ T8479] team0: Port device team_slave_0 added [ 64.071475][ T8479] team0: Port device team_slave_1 added [ 64.087777][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.097225][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.109654][ T8472] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.139958][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.149436][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.159261][ T8483] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 64.200348][ T8483] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 64.261026][ T8483] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 64.317223][ T8483] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 64.398491][ T8479] device hsr_slave_0 entered promiscuous mode [ 64.445537][ T8479] device hsr_slave_1 entered promiscuous mode [ 64.505315][ T8479] debugfs: Directory 'hsr0' with parent '/' already present! [ 64.513632][ T8484] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.522676][ T8484] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.531364][ T8484] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.538775][ T8484] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.550268][ T8470] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.580033][ T8481] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 64.627714][ T8490] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.638225][ T8490] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.647436][ T8490] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.656125][ T8490] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.663290][ T8490] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.672135][ T8490] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.685387][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.694154][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.706501][ T8485] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.715897][ T8485] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.723012][ T8485] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.734921][ T8481] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 64.813352][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 64.821483][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.830584][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.839135][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.846421][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.854698][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.864850][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 64.873984][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 64.882569][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 64.891943][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 64.900773][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 64.909312][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 64.919739][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 64.928230][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 64.938025][ T8481] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 65.001471][ T8481] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 65.059670][ T8472] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.072370][ T8472] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.101558][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.112071][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.121933][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.132865][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.142112][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.151616][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.161405][ T8486] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.184477][ T8476] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.207074][ T8479] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 65.230175][ T8479] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 65.309060][ T8476] 8021q: adding VLAN 0 to HW filter on device team0 [ 65.323343][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 65.338642][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 65.349188][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.361434][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.372453][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 65.383481][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 65.395420][ T3036] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.404042][ T3036] bridge0: port 1(bridge_slave_0) entered forwarding state [ 65.413007][ T8479] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 65.458567][ T8479] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 65.527951][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 65.538127][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.548185][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.557944][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 65.568049][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 65.577152][ T3036] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.584781][ T3036] bridge0: port 2(bridge_slave_1) entered forwarding state [ 65.592994][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 65.601755][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.610666][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.619724][ T3036] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.633952][ T8472] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.662004][ T8470] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.701403][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.717852][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.728790][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.738005][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.747236][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.761507][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.771437][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.780666][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.789222][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.813119][ T8483] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.822509][ T8481] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.836307][ T8476] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 65.866228][ T8476] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 170.865070][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 170.872240][ C0] rcu: 0-...!: (10499 ticks this GP) idle=3fa/1/0x4000000000000002 softirq=12039/12039 fqs=38 [ 170.882858][ C0] (t=10500 jiffies g=7217 q=155) [ 170.887879][ C0] rcu: rcu_preempt kthread starved for 10418 jiffies! g7217 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 170.898965][ C0] rcu: RCU grace-period kthread stack dump: [ 170.904847][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 170.912829][ C0] Call Trace: [ 170.916167][ C0] __schedule+0x9a0/0xcc0 [ 170.920586][ C0] schedule+0x181/0x210 [ 170.924732][ C0] schedule_timeout+0x14f/0x240 [ 170.929581][ C0] ? run_local_timers+0x120/0x120 [ 170.934606][ C0] rcu_gp_kthread+0xed8/0x1770 [ 170.939549][ C0] kthread+0x332/0x350 [ 170.943609][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 170.948710][ C0] ? kthread_blkcg+0xe0/0xe0 [ 170.953292][ C0] ret_from_fork+0x24/0x30 [ 170.957720][ C0] NMI backtrace for cpu 0 [ 170.962053][ C0] CPU: 0 PID: 8472 Comm: syz-executor.1 Not tainted 5.4.0-syzkaller #0 [ 170.970284][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 170.980500][ C0] Call Trace: [ 170.983770][ C0] [ 170.986616][ C0] dump_stack+0x1fb/0x318 [ 170.990966][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 170.995806][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 171.002044][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 171.008195][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 171.014189][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 171.020075][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 171.025375][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 171.030952][ C0] ? trace_hardirqs_off+0x74/0x80 [ 171.035986][ C0] update_process_times+0x12d/0x180 [ 171.041384][ C0] tick_sched_timer+0x263/0x420 [ 171.046244][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 171.051784][ C0] __hrtimer_run_queues+0x403/0x840 [ 171.056993][ C0] hrtimer_interrupt+0x38c/0xda0 [ 171.061964][ C0] ? debug_smp_processor_id+0x9/0x20 [ 171.067426][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 171.072978][ C0] apic_timer_interrupt+0xf/0x20 [ 171.078002][ C0] [ 171.080943][ C0] RIP: 0010:mod_memcg_page_state+0x169/0x190 [ 171.087251][ C0] Code: 28 96 0a 89 e8 a8 9e 69 00 48 83 3d c8 21 c2 07 00 74 2d e8 99 27 2e 00 4c 89 ff 57 9d 0f 1f 44 00 00 5b 41 5c 41 5e 41 5f 5d e8 81 27 2e 00 0f 0b e8 7a 27 2e 00 0f 0b e8 73 27 2e 00 0f 0b [ 171.107311][ C0] RSP: 0018:ffffc900024b7bc8 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 171.115718][ C0] RAX: ffffffff81487433 RBX: ffff8880a79d6b08 RCX: ffff8880a1b625c0 [ 171.123783][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002a0d400 [ 171.131749][ C0] RBP: ffffc900024b7c08 R08: dffffc0000000000 R09: fffffbfff120248a [ 171.139781][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880a79d6ba0 [ 171.147745][ C0] R13: dffffc0000000000 R14: 1ffff11014f3ad74 R15: ffff888090bbf5e8 [ 171.155746][ C0] ? mod_memcg_page_state+0x123/0x190 [ 171.161135][ C0] ? free_thread_stack+0x168/0x590 [ 171.166244][ C0] put_task_stack+0xa3/0x130 [ 171.170827][ C0] finish_task_switch+0x3f1/0x550 [ 171.175937][ C0] __schedule+0x9a8/0xcc0 [ 171.180789][ C0] schedule+0x181/0x210 [ 171.184940][ C0] do_nanosleep+0x1d0/0x6c0 [ 171.189450][ C0] hrtimer_nanosleep+0x3a6/0x5b0 [ 171.194385][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 171.200190][ C0] __x64_sys_nanosleep+0x186/0x1d0 [ 171.205305][ C0] do_syscall_64+0xf7/0x1c0 [ 171.209823][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 171.215900][ C0] RIP: 0033:0x458b20 [ 171.219809][ C0] Code: c0 5b 5d c3 66 0f 1f 44 00 00 8b 04 24 48 83 c4 18 5b 5d c3 66 0f 1f 44 00 00 83 3d 11 fe 61 00 00 75 14 b8 23 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 d4 d1 fb ff c3 48 83 ec 08 e8 ea 46 00 00 [ 171.239426][ C0] RSP: 002b:00007fffefae5c18 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 171.248103][ C0] RAX: ffffffffffffffda RBX: 000000000001011e RCX: 0000000000458b20 [ 171.256068][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007fffefae5c20 [ 171.264119][ C0] RBP: 0000000000000002 R08: 0000000000000001 R09: 00000000029bb940 [ 171.272255][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 171.280221][ C0] R13: 00007fffefae5c70 R14: 000000000001011e R15: 00007fffefae5c80