[ 45.807241][ T25] audit: type=1800 audit(1575321490.956:25): pid=8102 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 45.832310][ T25] audit: type=1800 audit(1575321490.956:26): pid=8102 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 45.883571][ T25] audit: type=1800 audit(1575321490.956:27): pid=8102 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 45.916697][ T25] audit: type=1800 audit(1575321490.956:28): pid=8102 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 '10.128.10.29' (ECDSA) to the list of known hosts. 2019/12/02 21:18:21 fuzzer started 2019/12/02 21:18:23 dialing manager at 10.128.0.26:38907 2019/12/02 21:18:23 syscalls: 2697 2019/12/02 21:18:23 code coverage: enabled 2019/12/02 21:18:23 comparison tracing: enabled 2019/12/02 21:18:23 extra coverage: extra coverage is not supported by the kernel 2019/12/02 21:18:23 setuid sandbox: enabled 2019/12/02 21:18:23 namespace sandbox: enabled 2019/12/02 21:18:23 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/02 21:18:23 fault injection: enabled 2019/12/02 21:18:23 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/02 21:18:23 net packet injection: enabled 2019/12/02 21:18:23 net device setup: enabled 2019/12/02 21:18:23 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/02 21:18:23 devlink PCI setup: PCI device 0000:00:10.0 is not available 21:18:24 executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = dup2(r0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x1, 0x4, &(0x7f0000001fd8)=@framed={{0xffffffb7, 0x0, 0x0, 0x0, 0x0, 0x7c}, [@ldst={0x7}]}, &(0x7f0000003ff6)='OPL\x00', 0x1, 0xb579, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0xfffffffffffffea2}, 0x48) 21:18:24 executing program 1: r0 = socket(0x10, 0x2, 0x0) sendmsg$nl_route(r0, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000180)=@setlink={0x4c, 0x13, 0x501, 0x0, 0x0, {}, [@IFLA_VFINFO_LIST={0x18, 0x16, [{0x14, 0x1, [@IFLA_VF_RATE={0x10}]}]}, @IFLA_IFNAME={0x14, 0x3, 'veth1_to_bond\x00'}]}, 0x4c}}, 0x0) syzkaller login: [ 59.043049][ T8272] IPVS: ftp: loaded support on port[0] = 21 [ 59.194255][ T8272] chnl_net:caif_netlink_parms(): no params data found [ 59.254215][ T8275] IPVS: ftp: loaded support on port[0] = 21 [ 59.268311][ T8272] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.279952][ T8272] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.289370][ T8272] device bridge_slave_0 entered promiscuous mode 21:18:24 executing program 2: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") pipe(&(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) ppoll(&(0x7f00000002c0)=[{r1}], 0x1, 0x0, 0x0, 0x0) pipe(&(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) tee(r2, r1, 0x8, 0x0) vmsplice(r3, &(0x7f00000017c0)=[{&(0x7f0000000340)='X', 0x1}], 0x1, 0x0) [ 59.317035][ T8272] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.324132][ T8272] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.335594][ T8272] device bridge_slave_1 entered promiscuous mode [ 59.392714][ T8272] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.436581][ T8272] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.488792][ T8272] team0: Port device team_slave_0 added [ 59.497369][ T8272] team0: Port device team_slave_1 added [ 59.503206][ T8275] chnl_net:caif_netlink_parms(): no params data found 21:18:24 executing program 3: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000180)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) rt_sigaction(0x23, &(0x7f00000004c0)={0x0, {}, 0x0, 0x0}, 0x0, 0x8, &(0x7f00000005c0)) [ 59.598618][ T8272] device hsr_slave_0 entered promiscuous mode [ 59.686159][ T8272] device hsr_slave_1 entered promiscuous mode [ 59.737758][ T8278] IPVS: ftp: loaded support on port[0] = 21 [ 59.761003][ T8280] IPVS: ftp: loaded support on port[0] = 21 21:18:24 executing program 4: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000140)={'ip6tnl0\x00', 0x0}) bind$packet(r0, &(0x7f00000001c0)={0x11, 0x800, r1, 0x1, 0x0, 0x6, @dev}, 0x14) r2 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_fanout(r2, 0x107, 0x12, &(0x7f0000000140)={0x0, 0x0, 0x8de7d8f023d06bd7}, 0x4) sendmmsg(r0, &(0x7f0000000d00), 0x400004e, 0x0) [ 59.813322][ T8275] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.826242][ T8275] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.850030][ T8275] device bridge_slave_0 entered promiscuous mode [ 59.879249][ T8275] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.887801][ T8275] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.916670][ T8275] device bridge_slave_1 entered promiscuous mode [ 59.929495][ T8272] netdevsim netdevsim0 netdevsim0: renamed from eth0 21:18:25 executing program 5: r0 = syz_open_procfs(0x0, &(0x7f0000000000)='net/netlink\x00') preadv(r0, &(0x7f0000001b00)=[{&(0x7f00000001c0)=""/124, 0x7c}], 0x1, 0x0) preadv(r0, &(0x7f0000000140)=[{&(0x7f0000000040)=""/193, 0xc1}], 0x1, 0x5) [ 59.978785][ T8272] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.078688][ T8272] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.138235][ T8272] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.200301][ T8275] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.217505][ T8282] IPVS: ftp: loaded support on port[0] = 21 [ 60.229474][ T8284] IPVS: ftp: loaded support on port[0] = 21 [ 60.253425][ T8275] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.288276][ T8275] team0: Port device team_slave_0 added [ 60.309142][ T8275] team0: Port device team_slave_1 added [ 60.362997][ T8278] chnl_net:caif_netlink_parms(): no params data found [ 60.426546][ T8275] device hsr_slave_0 entered promiscuous mode [ 60.485140][ T8275] device hsr_slave_1 entered promiscuous mode [ 60.514769][ T8275] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.578124][ T8278] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.585613][ T8278] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.593167][ T8278] device bridge_slave_0 entered promiscuous mode [ 60.603275][ T8278] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.610704][ T8278] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.618649][ T8278] device bridge_slave_1 entered promiscuous mode [ 60.628495][ T8280] chnl_net:caif_netlink_parms(): no params data found [ 60.681670][ T8278] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.703017][ T8278] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.712371][ T8284] chnl_net:caif_netlink_parms(): no params data found [ 60.743706][ T8275] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.790762][ T8275] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.851525][ T8275] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.908260][ T8275] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.956541][ T8280] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.963763][ T8280] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.971620][ T8280] device bridge_slave_0 entered promiscuous mode [ 60.979346][ T8280] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.986564][ T8280] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.994110][ T8280] device bridge_slave_1 entered promiscuous mode [ 61.012916][ T8278] team0: Port device team_slave_0 added [ 61.052141][ T8278] team0: Port device team_slave_1 added [ 61.079957][ T8282] chnl_net:caif_netlink_parms(): no params data found [ 61.101108][ T8284] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.109483][ T8284] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.119730][ T8284] device bridge_slave_0 entered promiscuous mode [ 61.128609][ T8280] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.142877][ T8280] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.209229][ T8278] device hsr_slave_0 entered promiscuous mode [ 61.254948][ T8278] device hsr_slave_1 entered promiscuous mode [ 61.294700][ T8278] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.302413][ T8284] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.309677][ T8284] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.317421][ T8284] device bridge_slave_1 entered promiscuous mode [ 61.374014][ T8282] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.384129][ T8282] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.391972][ T8282] device bridge_slave_0 entered promiscuous mode [ 61.406963][ T8280] team0: Port device team_slave_0 added [ 61.413975][ T8280] team0: Port device team_slave_1 added [ 61.421712][ T8284] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.432727][ T8284] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.451457][ T8272] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.462713][ T8282] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.470717][ T8282] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.478752][ T8282] device bridge_slave_1 entered promiscuous mode [ 61.492964][ T8278] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.573275][ T8282] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.586531][ T8278] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.617976][ T8278] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.678594][ T8284] team0: Port device team_slave_0 added [ 61.684443][ T8278] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.731139][ T8282] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.751469][ T8284] team0: Port device team_slave_1 added [ 61.819108][ T8280] device hsr_slave_0 entered promiscuous mode [ 61.865307][ T8280] device hsr_slave_1 entered promiscuous mode [ 61.934836][ T8280] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.950274][ T8272] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.997343][ T8284] device hsr_slave_0 entered promiscuous mode [ 62.055155][ T8284] device hsr_slave_1 entered promiscuous mode [ 62.094780][ T8284] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.105598][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.113881][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.127162][ T8282] team0: Port device team_slave_0 added [ 62.168670][ T8282] team0: Port device team_slave_1 added [ 62.185932][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.194500][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.203538][ T2995] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.213785][ T2995] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.221759][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.230539][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.238926][ T2995] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.246015][ T2995] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.253475][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.262809][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.276368][ T8280] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.340718][ T8280] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.399328][ T8280] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.450688][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.517343][ T8282] device hsr_slave_0 entered promiscuous mode [ 62.555064][ T8282] device hsr_slave_1 entered promiscuous mode [ 62.605062][ T8282] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.613105][ T8280] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.661194][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.669741][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.680389][ T8284] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 62.727328][ T8284] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 62.775358][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.783847][ T8284] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 62.827229][ T8284] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 62.885139][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.893554][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.910312][ T8275] 8021q: adding VLAN 0 to HW filter on device bond0 [ 62.931563][ T8282] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.000214][ T8282] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 63.056366][ T8275] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.063201][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.071882][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.081045][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.088923][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.101942][ T8272] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.114404][ T8272] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.127884][ T8282] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 63.187713][ T8282] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 63.236959][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.245948][ T2995] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.260797][ T8278] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.302098][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.313809][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.323432][ T3180] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.330527][ T3180] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.338645][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.347321][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.355670][ T3180] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.362699][ T3180] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.370237][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.385762][ T8278] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.410751][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.421328][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.429986][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.438591][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.446691][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.455373][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.463560][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.472162][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.480663][ T8290] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.487736][ T8290] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.495657][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.504084][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.512584][ T8290] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.519656][ T8290] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.527115][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.536200][ T8290] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.557091][ T8280] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.569185][ T8284] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.587522][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.597368][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.606585][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.617011][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.625727][ T3180] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.640649][ T8272] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.660805][ T8278] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 63.672211][ T8278] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.688679][ T8284] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.697765][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.705395][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.712809][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.722261][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.730619][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.739005][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.747735][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.756196][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.764425][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 63.772771][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 63.781016][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.790170][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.798896][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.807087][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.818760][ T8275] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.830941][ T8275] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.845288][ T8280] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.853960][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.862367][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.880416][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.890348][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.898317][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.906253][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.915155][ T43] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.923685][ T43] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.930785][ T43] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.982238][ T8278] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 168.904562][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 168.911352][ C0] rcu: 0-...!: (10499 ticks this GP) idle=2de/1/0x4000000000000002 softirq=11646/11646 fqs=39 [ 168.921948][ C0] (t=10501 jiffies g=6381 q=244) [ 168.926958][ C0] rcu: rcu_preempt kthread starved for 10423 jiffies! g6381 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 168.938039][ C0] rcu: RCU grace-period kthread stack dump: [ 168.943920][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 168.951805][ C0] Call Trace: [ 168.955099][ C0] __schedule+0x9a0/0xcc0 [ 168.959420][ C0] schedule+0x181/0x210 [ 168.963563][ C0] schedule_timeout+0x14f/0x240 [ 168.968399][ C0] ? run_local_timers+0x120/0x120 [ 168.973412][ C0] rcu_gp_kthread+0xed8/0x1770 [ 168.978170][ C0] kthread+0x332/0x350 [ 168.982235][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 168.987330][ C0] ? kthread_blkcg+0xe0/0xe0 [ 168.991907][ C0] ret_from_fork+0x24/0x30 [ 168.996321][ C0] NMI backtrace for cpu 0 [ 169.000639][ C0] CPU: 0 PID: 8243 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 169.008071][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 169.018121][ C0] Call Trace: [ 169.021390][ C0] [ 169.024226][ C0] dump_stack+0x1fb/0x318 [ 169.028689][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 169.033550][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 169.039699][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 169.045754][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 169.051729][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 169.057608][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 169.062710][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 169.067897][ C0] ? trace_hardirqs_off+0x74/0x80 [ 169.072909][ C0] update_process_times+0x12d/0x180 [ 169.078096][ C0] tick_sched_timer+0x263/0x420 [ 169.083106][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 169.088638][ C0] __hrtimer_run_queues+0x403/0x840 [ 169.093839][ C0] hrtimer_interrupt+0x38c/0xda0 [ 169.098778][ C0] ? debug_smp_processor_id+0x9/0x20 [ 169.104051][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 169.109594][ C0] apic_timer_interrupt+0xf/0x20 [ 169.114515][ C0] [ 169.117440][ C0] RIP: 0010:__memcg_kmem_uncharge+0x6/0x2e0 [ 169.123318][ C0] Code: 90 8c 07 00 74 12 48 81 c3 08 02 00 00 48 89 df 4c 89 f6 e8 dc 7d 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 [ 169.142933][ C0] RSP: 0018:ffffc90001df7af8 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 169.151352][ C0] RAX: ffffffff81486ea4 RBX: ffffea0002a43f80 RCX: ffff88808b710040 [ 169.159312][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea0002a43f80 [ 169.167288][ C0] RBP: ffffc90001df7b00 R08: 000000000003a768 R09: ffffed10150f42af [ 169.175258][ C0] R10: ffffed10150f42af R11: 0000000000000000 R12: ffff8880928f9ba0 [ 169.183233][ C0] R13: dffffc0000000000 R14: 1ffff1101251f374 R15: ffff8880a87a1568 [ 169.191222][ C0] ? free_thread_stack+0x124/0x590 [ 169.196333][ C0] free_thread_stack+0x12e/0x590 [ 169.201262][ C0] put_task_stack+0xa3/0x130 [ 169.205862][ C0] finish_task_switch+0x3f1/0x550 [ 169.210875][ C0] __schedule+0x9a8/0xcc0 [ 169.215199][ C0] schedule+0x181/0x210 [ 169.219340][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 169.225393][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 169.231188][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 169.236543][ C0] ep_poll+0xa4d/0xe80 [ 169.240608][ C0] ? do_task_dead+0xc0/0xc0 [ 169.245095][ C0] ? __kasan_check_read+0x11/0x20 [ 169.250104][ C0] do_epoll_wait+0x1ee/0x260 [ 169.254684][ C0] __x64_sys_epoll_wait+0x9a/0xb0 [ 169.259695][ C0] do_syscall_64+0xf7/0x1c0 [ 169.264183][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 169.270058][ C0] RIP: 0033:0x7fe2bf554943 [ 169.274460][ C0] Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 [ 169.294047][ C0] RSP: 002b:00007ffca4fded68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 169.302444][ C0] RAX: ffffffffffffffda RBX: 0000000001130250 RCX: 00007fe2bf554943 [ 169.310400][ C0] RDX: 0000000000000004 RSI: 00007ffca4fdee30 RDI: 0000000000000007 [ 169.318357][ C0] RBP: 0000000000625500 R08: 00007ffca4fded50 R09: 00007ffca4ff80b8 [ 169.326309][ C0] R10: 000000000000ee40 R11: 0000000000000246 R12: 00000000011422b0 [ 169.334274][ C0] R13: 00007ffca4fdfe87 R14: 0000000000000005 R15: 0000000001130250