[ 43.518515][ T26] audit: type=1800 audit(1575365563.052:26): pid=8049 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 43.569205][ T26] audit: type=1800 audit(1575365563.052:27): pid=8049 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 43.590297][ T26] audit: type=1800 audit(1575365563.052:28): pid=8049 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. [ 44.207900][ T26] audit: type=1800 audit(1575365563.762:29): pid=8049 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.44' (ECDSA) to the list of known hosts. 2019/12/03 09:32:51 fuzzer started 2019/12/03 09:32:53 dialing manager at 10.128.0.26:38907 2019/12/03 09:32:53 syscalls: 2697 2019/12/03 09:32:53 code coverage: enabled 2019/12/03 09:32:53 comparison tracing: enabled 2019/12/03 09:32:53 extra coverage: extra coverage is not supported by the kernel 2019/12/03 09:32:53 setuid sandbox: enabled 2019/12/03 09:32:53 namespace sandbox: enabled 2019/12/03 09:32:53 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 09:32:53 fault injection: enabled 2019/12/03 09:32:53 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 09:32:53 net packet injection: enabled 2019/12/03 09:32:53 net device setup: enabled 2019/12/03 09:32:53 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 09:32:53 devlink PCI setup: PCI device 0000:00:10.0 is not available 09:32:54 executing program 0: r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000200)='/dev/ppp\x00', 0x80000101005, 0x0) r1 = dup2(r0, r0) ioctl$EVIOCGPROP(r1, 0xc004743e, &(0x7f0000000000)=""/246) ioctl$PPPIOCSMAXCID(r0, 0x40047451, &(0x7f0000000b80)) pwritev(r0, &(0x7f0000000140)=[{&(0x7f0000000180)='\x00!', 0x2}], 0x1, 0x0) 09:32:54 executing program 1: r0 = socket$nl_xfrm(0x10, 0x3, 0x6) sendmsg$nl_xfrm(r0, &(0x7f0000415fc8)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)=@newsa={0x13c, 0x10, 0x203, 0x0, 0x0, {{@in=@broadcast, @in6=@mcast1, 0x0, 0x0, 0x0, 0x0, 0x2}, {@in6=@loopback, 0x0, 0x32}, @in6=@initdev={0xfe, 0x88, [], 0x0, 0x0}, {}, {}, {}, 0x0, 0x0, 0xa}, [@algo_auth_trunc={0x4c, 0x14, {{'cmac(aes)\x00'}}}]}, 0x13c}}, 0x0) syzkaller login: [ 55.166907][ T8215] IPVS: ftp: loaded support on port[0] = 21 09:32:54 executing program 2: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f0000000180)={0x3, 0x4, &(0x7f0000000000)=@framed={{0x18, 0x2}, [@call={0x85, 0x0, 0x0, 0x1c}]}, &(0x7f00000000c0)='GPL\x00', 0x4, 0x1000, &(0x7f000062b000)=""/4096, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x70) [ 55.353060][ T8218] IPVS: ftp: loaded support on port[0] = 21 [ 55.362824][ T8215] chnl_net:caif_netlink_parms(): no params data found [ 55.438092][ T8215] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.470508][ T8215] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.478634][ T8215] device bridge_slave_0 entered promiscuous mode [ 55.503892][ T8215] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.519608][ T8215] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.527282][ T8215] device bridge_slave_1 entered promiscuous mode [ 55.547774][ T8220] IPVS: ftp: loaded support on port[0] = 21 09:32:55 executing program 3: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) remap_file_pages(&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x0, 0x0, 0x10) r0 = syz_open_dev$dri(&(0x7f00000001c0)='/dev/dri/card#\x00', 0x1, 0x0) ioctl$DRM_IOCTL_MODE_SETCRTC(r0, 0xc06864a2, &(0x7f0000000000)={0x0, 0x0, 0x20, 0x0, 0x0, 0x0, 0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, "07a30cd41929926a9335701c068b17b9fc07cd039f5a47009833063800"}}) socket$inet(0x10, 0x0, 0x0) socketpair$unix(0x1, 0x3, 0x0, 0x0) socketpair$unix(0x1, 0x3, 0x0, &(0x7f0000000280)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$dupfd(r1, 0x0, 0xffffffffffffffff) fcntl$dupfd(0xffffffffffffffff, 0x0, 0xffffffffffffffff) r2 = dup2(0xffffffffffffffff, 0xffffffffffffffff) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x0) ioctl$IMHOLD_L1(0xffffffffffffffff, 0x80044948, 0x0) perf_event_open(&(0x7f0000000100)={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) r3 = socket$inet6(0xa, 0x5, 0x0) bind$inet6(r3, &(0x7f00002aafe4)={0xa, 0x4e23, 0x0, @ipv4}, 0x1c) listen(r3, 0x0) r4 = socket$inet_sctp(0x2, 0x0, 0x84) sendmsg(r4, &(0x7f0000000180)={&(0x7f0000000000)=@in={0x2, 0x0, @local}, 0x80, &(0x7f00000000c0)=[{&(0x7f0000000200)='#', 0x1}], 0x1, 0x0, 0x0, 0x9000004}, 0x0) r5 = socket$inet6_sctp(0xa, 0x0, 0x84) connect$inet6(r5, &(0x7f0000d83fe4)={0xa, 0x4e23, 0x0, @loopback}, 0x1c) [ 55.613672][ T8215] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.659120][ T8215] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 55.688277][ T8218] chnl_net:caif_netlink_parms(): no params data found [ 55.774712][ T8215] team0: Port device team_slave_0 added [ 55.801839][ T8215] team0: Port device team_slave_1 added 09:32:55 executing program 4: socket$kcm(0xa, 0x800000000002, 0x73) r0 = socket$kcm(0xa, 0x2, 0x73) bind$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @loopback}, 0x69) [ 55.869729][ T8218] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.876841][ T8218] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.921232][ T8218] device bridge_slave_0 entered promiscuous mode [ 55.960571][ T8218] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.967774][ T8218] bridge0: port 2(bridge_slave_1) entered disabled state [ 55.990545][ T8218] device bridge_slave_1 entered promiscuous mode 09:32:55 executing program 5: pipe(&(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) r2 = socket$inet_udp(0x2, 0x2, 0x0) close(r2) r3 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000400)='/dev/ppp\x00', 0x101002, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = dup(r4) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) ioctl$EVIOCGPROP(r3, 0xc004743e, &(0x7f00000002c0)=""/246) pwritev(0xffffffffffffffff, &(0x7f0000000080)=[{&(0x7f0000000140)="80fd", 0x2}], 0x1, 0x0) write$binfmt_misc(r1, &(0x7f0000000140)=ANY=[], 0x4240a2a0) splice(r0, 0x0, r2, 0x0, 0x10005, 0x0) [ 56.064186][ T8215] device hsr_slave_0 entered promiscuous mode [ 56.139873][ T8215] device hsr_slave_1 entered promiscuous mode [ 56.226250][ T8226] IPVS: ftp: loaded support on port[0] = 21 [ 56.227696][ T8228] IPVS: ftp: loaded support on port[0] = 21 [ 56.245460][ T8225] IPVS: ftp: loaded support on port[0] = 21 [ 56.255114][ T8220] chnl_net:caif_netlink_parms(): no params data found [ 56.281184][ T8218] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.294878][ T8218] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.324473][ T8218] team0: Port device team_slave_0 added [ 56.331255][ T8215] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.373175][ T8215] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.459148][ T8218] team0: Port device team_slave_1 added [ 56.482125][ T8215] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.543463][ T8220] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.552407][ T8220] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.560730][ T8220] device bridge_slave_0 entered promiscuous mode [ 56.570744][ T8220] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.577803][ T8220] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.586698][ T8220] device bridge_slave_1 entered promiscuous mode [ 56.599210][ T8215] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 56.688539][ T8220] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.753102][ T8218] device hsr_slave_0 entered promiscuous mode [ 56.800043][ T8218] device hsr_slave_1 entered promiscuous mode [ 56.839730][ T8218] debugfs: Directory 'hsr0' with parent '/' already present! [ 56.851917][ T8220] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.876751][ T8220] team0: Port device team_slave_0 added [ 56.914653][ T8220] team0: Port device team_slave_1 added [ 56.946880][ T8226] chnl_net:caif_netlink_parms(): no params data found [ 57.012219][ T8220] device hsr_slave_0 entered promiscuous mode [ 57.050021][ T8220] device hsr_slave_1 entered promiscuous mode [ 57.089663][ T8220] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.125484][ T8218] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.166985][ T8218] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.228945][ T8228] chnl_net:caif_netlink_parms(): no params data found [ 57.258071][ T8218] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.314984][ T8218] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.373341][ T8226] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.380759][ T8226] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.388575][ T8226] device bridge_slave_0 entered promiscuous mode [ 57.396558][ T8226] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.403810][ T8226] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.411971][ T8226] device bridge_slave_1 entered promiscuous mode [ 57.427763][ T8220] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 57.494665][ T8220] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 57.568531][ T8226] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.586109][ T8226] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.597949][ T8225] chnl_net:caif_netlink_parms(): no params data found [ 57.607895][ T8220] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 57.656712][ T8220] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 57.736780][ T8228] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.744735][ T8228] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.753566][ T8228] device bridge_slave_0 entered promiscuous mode [ 57.765671][ T8228] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.773209][ T8228] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.782658][ T8228] device bridge_slave_1 entered promiscuous mode [ 57.797832][ T8225] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.806196][ T8225] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.815069][ T8225] device bridge_slave_0 entered promiscuous mode [ 57.824504][ T8226] team0: Port device team_slave_0 added [ 57.836764][ T8226] team0: Port device team_slave_1 added [ 57.851023][ T8225] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.858097][ T8225] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.866478][ T8225] device bridge_slave_1 entered promiscuous mode [ 57.896554][ T8215] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.913602][ T8225] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.928307][ T8228] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.940845][ T8228] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.951786][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.962890][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.985853][ T8225] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.010851][ T8228] team0: Port device team_slave_0 added [ 58.018254][ T8228] team0: Port device team_slave_1 added [ 58.082492][ T8226] device hsr_slave_0 entered promiscuous mode [ 58.139978][ T8226] device hsr_slave_1 entered promiscuous mode [ 58.210074][ T8226] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.229790][ T8215] 8021q: adding VLAN 0 to HW filter on device team0 [ 58.284838][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.293992][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.303503][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.310727][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.319035][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.328065][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.336735][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.344244][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.392052][ T8228] device hsr_slave_0 entered promiscuous mode [ 58.430274][ T8228] device hsr_slave_1 entered promiscuous mode [ 58.469637][ T8228] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.478972][ T8225] team0: Port device team_slave_0 added [ 58.486862][ T8225] team0: Port device team_slave_1 added [ 58.499795][ T8226] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 58.544109][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.554360][ T8218] 8021q: adding VLAN 0 to HW filter on device bond0 [ 58.585299][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.594320][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.606140][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.614831][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.626440][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 58.635020][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 58.648603][ T8226] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 58.714916][ T8226] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 58.765138][ T8226] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 58.831374][ T8225] device hsr_slave_0 entered promiscuous mode [ 58.870818][ T8225] device hsr_slave_1 entered promiscuous mode [ 58.909644][ T8225] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.917822][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.927316][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 58.935445][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 58.957011][ T8228] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 59.023280][ T8218] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.035830][ T8215] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.047354][ T8215] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.071019][ T8220] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.077956][ T8228] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 59.151808][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.160542][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.169388][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.178096][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.186555][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.214618][ T8228] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 59.254329][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.263039][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.272235][ T8234] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.279408][ T8234] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.287262][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.296580][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.305286][ T8234] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.312479][ T8234] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.321882][ T8234] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.347329][ T8228] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 59.377408][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.387082][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.396112][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.406157][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.415406][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.424617][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.433817][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.442323][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.451226][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 59.460056][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 59.468129][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 59.482212][ T8218] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.495466][ T8218] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.505774][ T8220] 8021q: adding VLAN 0 to HW filter on device team0 [ 59.519552][ T8225] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.561664][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.572093][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.591292][ T8218] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.611649][ T8225] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.635654][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.643964][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.651885][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 59.662947][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 59.671404][ T3190] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.678962][ T3190] bridge0: port 1(bridge_slave_0) entered forwarding state [ 59.686743][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 59.695705][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 59.704274][ T3190] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.711710][ T3190] bridge0: port 2(bridge_slave_1) entered forwarding state [ 59.719174][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.727343][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.735227][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 59.744177][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 59.761036][ T8215] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.768189][ T8225] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.791824][ T8225] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.839218][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 59.874706][ T8220] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 59.885791][ T8220] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.904813][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 59.918180][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 59.928094][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.942266][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.954570][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.965265][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.978350][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.988907][ T3190] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.045678][ T8220] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 164.959454][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 164.966465][ C1] rcu: 1-...!: (10499 ticks this GP) idle=79e/1/0x4000000000000002 softirq=10524/10524 fqs=39 [ 164.977074][ C1] (t=10501 jiffies g=6513 q=247) [ 164.982091][ C1] rcu: rcu_preempt kthread starved for 10424 jiffies! g6513 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 164.993259][ C1] rcu: RCU grace-period kthread stack dump: [ 164.999156][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 165.007308][ C1] Call Trace: [ 165.010615][ C1] __schedule+0x9a0/0xcc0 [ 165.014961][ C1] schedule+0x181/0x210 [ 165.019168][ C1] schedule_timeout+0x14f/0x240 [ 165.024164][ C1] ? run_local_timers+0x120/0x120 [ 165.029191][ C1] rcu_gp_kthread+0xed8/0x1770 [ 165.033956][ C1] kthread+0x332/0x350 [ 165.038272][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 165.043375][ C1] ? kthread_blkcg+0xe0/0xe0 [ 165.047954][ C1] ret_from_fork+0x24/0x30 [ 165.052377][ C1] NMI backtrace for cpu 1 [ 165.056787][ C1] CPU: 1 PID: 8238 Comm: kworker/u4:0 Not tainted 5.4.0-syzkaller #0 [ 165.064832][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.074893][ C1] Call Trace: [ 165.078177][ C1] [ 165.081039][ C1] dump_stack+0x1fb/0x318 [ 165.085448][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.090599][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.096746][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.102803][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.108780][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.114721][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.119825][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.125017][ C1] ? trace_hardirqs_off+0x74/0x80 [ 165.130032][ C1] update_process_times+0x12d/0x180 [ 165.135220][ C1] tick_sched_timer+0x263/0x420 [ 165.140056][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.145590][ C1] __hrtimer_run_queues+0x403/0x840 [ 165.150820][ C1] hrtimer_interrupt+0x38c/0xda0 [ 165.155784][ C1] ? debug_smp_processor_id+0x9/0x20 [ 165.161611][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 165.167195][ C1] apic_timer_interrupt+0xf/0x20 [ 165.172124][ C1] [ 165.175057][ C1] RIP: 0010:free_thread_stack+0x18b/0x590 [ 165.180774][ C1] Code: ff ff e8 28 04 00 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 09 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 eb a3 69 00 48 8b 1b e9 82 ff ff ff e8 de 2c 2e [ 165.200843][ C1] RSP: 0018:ffffc900026e7e40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 165.209261][ C1] RAX: 1ffff1101439e411 RBX: ffff8880a1cf2088 RCX: ffff8880a8372180 [ 165.218096][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00028c7940 [ 165.226409][ C1] RBP: ffffc900026e7e78 R08: 000000000003a768 R09: ffffed10123abf2f [ 165.234378][ C1] R10: ffffed10123abf2f R11: 0000000000000000 R12: ffff8880a1cf2120 [ 165.242342][ C1] R13: dffffc0000000000 R14: 1ffff1101439e424 R15: ffff888091d5f968 [ 165.250512][ C1] put_task_stack+0xa3/0x130 [ 165.255098][ C1] finish_task_switch+0x3f1/0x550 [ 165.260116][ C1] ? proc_cap_handler+0x450/0x450 [ 165.265230][ C1] schedule_tail+0x20/0x1a0 [ 165.269742][ C1] ? proc_cap_handler+0x450/0x450 [ 165.274764][ C1] ret_from_fork+0x8/0x30