[ 39.709819][ T23] audit: type=1800 audit(1575429350.656:28): pid=7853 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. [ 39.979432][ T7918] sshd (7918) used greatest stack depth: 23736 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.318237][ T23] audit: type=1800 audit(1575429351.386:29): pid=7853 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 40.356347][ T23] audit: type=1800 audit(1575429351.406:30): pid=7853 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.43' (ECDSA) to the list of known hosts. 2019/12/04 03:15:58 fuzzer started 2019/12/04 03:15:59 dialing manager at 10.128.0.26:42111 2019/12/04 03:15:59 syscalls: 2689 2019/12/04 03:15:59 code coverage: enabled 2019/12/04 03:15:59 comparison tracing: enabled 2019/12/04 03:15:59 extra coverage: extra coverage is not supported by the kernel 2019/12/04 03:15:59 setuid sandbox: enabled 2019/12/04 03:15:59 namespace sandbox: enabled 2019/12/04 03:15:59 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 03:15:59 fault injection: enabled 2019/12/04 03:15:59 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 03:15:59 net packet injection: enabled 2019/12/04 03:15:59 net device setup: enabled 2019/12/04 03:15:59 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 03:15:59 devlink PCI setup: PCI device 0000:00:10.0 is not available 03:16:00 executing program 0: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000100)='./cgroup.cpu\x005\n\xff\xd9\x15\xc1m\xd6\xcc\x05\xed\xac\xb3\xfe\x13\xadD\x1ai\xfc\x00\x00\x00\x00\x01\x00\x00\x00\xcb\x9d\x80\x01V\xea\x8a\x112\xd8\xfe\x7f\x0f\"pX\xa4>\xf9\x00r\x14+\x1e\xdc\xb3]N\b\x00\x00\x00 +\xf4\xe1>\xb6\xde\xce\xe7`\xb2{\xee\x06\xf8.\aA\xcf\x00'/105, 0x200002, 0x0) r1 = openat$cgroup_procs(r0, &(0x7f0000000000)='tasks\x00', 0x2, 0x0) r2 = openat$cgroup_int(r0, &(0x7f0000000180)='cpuset.cpu_exclusive\x00', 0x2, 0x0) sendfile(r2, r1, &(0x7f0000000040)=0xc000ffb, 0x100004) 03:16:00 executing program 1: r0 = socket$inet6(0xa, 0x1, 0x0) getsockopt$inet6_tcp_TCP_ZEROCOPY_RECEIVE(r0, 0x6, 0x23, 0x0, &(0x7f0000000080)) syzkaller login: [ 49.536626][ T8016] IPVS: ftp: loaded support on port[0] = 21 03:16:00 executing program 2: mknod(&(0x7f0000000180)='./file0\x00', 0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x81, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000000a000)={0x6, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8c, 0x9010, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, @perf_config_ext={0xbc}, 0x8000000200036158, 0x800007f}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mount(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000fb5ffc)='nfs\x00', 0x0, &(0x7f000000a000)) [ 49.683153][ T8016] chnl_net:caif_netlink_parms(): no params data found [ 49.699265][ T8019] IPVS: ftp: loaded support on port[0] = 21 [ 49.784815][ T8016] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.806422][ T8016] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.815378][ T8016] device bridge_slave_0 entered promiscuous mode [ 49.840394][ T8016] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.856387][ T8016] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.863932][ T8016] device bridge_slave_1 entered promiscuous mode [ 49.892312][ T8021] IPVS: ftp: loaded support on port[0] = 21 [ 49.923887][ T8016] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link 03:16:01 executing program 3: r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000100)='/dev/loop-control\x00', 0x0, 0x0) r3 = openat$kvm(0xffffffffffffff9c, &(0x7f00000002c0)='/dev/kvm\x00', 0x0, 0x0) r4 = ioctl$KVM_CREATE_VM(r3, 0xae01, 0x0) close(r2) 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_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r5 = ioctl$KVM_CREATE_VCPU(r4, 0xae41, 0x0) syz_kvm_setup_cpu$x86(r2, r5, &(0x7f0000fe5000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) [ 49.971578][ T8016] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.082755][ T8016] team0: Port device team_slave_0 added [ 50.121711][ T8016] team0: Port device team_slave_1 added [ 50.131686][ T8019] chnl_net:caif_netlink_parms(): no params data found 03:16:01 executing program 4: openat$uinput(0xffffffffffffff9c, &(0x7f0000000100)='/dev/uinput\x00', 0x0, 0x0) r0 = syz_init_net_socket$bt_l2cap(0x1f, 0x1, 0x3) ioctl$FS_IOC_GETFSLABEL(r0, 0x800452d2, &(0x7f0000000100)) [ 50.244246][ T8021] chnl_net:caif_netlink_parms(): no params data found [ 50.275603][ T8026] IPVS: ftp: loaded support on port[0] = 21 [ 50.338925][ T8016] device hsr_slave_0 entered promiscuous mode 03:16:01 executing program 5: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7f, 0x10010, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext={0x7, 0x3}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) write$RDMA_USER_CM_CMD_INIT_QP_ATTR(0xffffffffffffffff, 0x0, 0x0) openat$dsp(0xffffffffffffff9c, 0x0, 0x0, 0x0) mkdir(&(0x7f0000000500)='./file0\x00', 0x0) mount(0x0, &(0x7f0000000300)='./file0\x00', &(0x7f0000000280)='configfs\x00', 0x0, 0x0) r0 = open(&(0x7f0000fa3000)='./file0\x00', 0x0, 0x0) getdents(r0, &(0x7f0000000200)=""/206, 0xce) [ 50.416837][ T8016] device hsr_slave_1 entered promiscuous mode [ 50.496201][ T8019] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.505106][ T8019] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.508207][ T8027] IPVS: ftp: loaded support on port[0] = 21 [ 50.519109][ T8019] device bridge_slave_0 entered promiscuous mode [ 50.548496][ T8019] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.555607][ T8019] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.564252][ T8019] device bridge_slave_1 entered promiscuous mode [ 50.590248][ T8021] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.598365][ T8021] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.606200][ T8021] device bridge_slave_0 entered promiscuous mode [ 50.607723][ T8029] IPVS: ftp: loaded support on port[0] = 21 [ 50.629106][ T8019] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.642742][ T8019] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.663102][ T8021] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.672845][ T8021] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.680506][ T8021] device bridge_slave_1 entered promiscuous mode [ 50.692926][ T8016] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.750218][ T8019] team0: Port device team_slave_0 added [ 50.756042][ T8016] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.799241][ T8016] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.884423][ T8019] team0: Port device team_slave_1 added [ 50.899168][ T8016] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.978999][ T8019] device hsr_slave_0 entered promiscuous mode [ 51.026653][ T8019] device hsr_slave_1 entered promiscuous mode [ 51.076465][ T8019] debugfs: Directory 'hsr0' with parent '/' already present! [ 51.088556][ T8021] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.103495][ T8021] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.150063][ T8021] team0: Port device team_slave_0 added [ 51.208874][ T8021] team0: Port device team_slave_1 added [ 51.233569][ T8026] chnl_net:caif_netlink_parms(): no params data found [ 51.268991][ T8027] chnl_net:caif_netlink_parms(): no params data found [ 51.318455][ T8021] device hsr_slave_0 entered promiscuous mode [ 51.367061][ T8021] device hsr_slave_1 entered promiscuous mode [ 51.406367][ T8021] debugfs: Directory 'hsr0' with parent '/' already present! [ 51.413957][ T8019] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 51.468545][ T8019] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 51.508046][ T8019] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 51.585343][ T8019] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 51.678947][ T8027] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.686022][ T8027] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.693878][ T8027] device bridge_slave_0 entered promiscuous mode [ 51.705884][ T8027] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.712966][ T8027] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.721159][ T8027] device bridge_slave_1 entered promiscuous mode [ 51.731796][ T8029] chnl_net:caif_netlink_parms(): no params data found [ 51.774133][ T8027] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.784675][ T8026] bridge0: port 1(bridge_slave_0) entered blocking state [ 51.792126][ T8026] bridge0: port 1(bridge_slave_0) entered disabled state [ 51.800447][ T8026] device bridge_slave_0 entered promiscuous mode [ 51.808240][ T8026] bridge0: port 2(bridge_slave_1) entered blocking state [ 51.815271][ T8026] bridge0: port 2(bridge_slave_1) entered disabled state [ 51.823377][ T8026] device bridge_slave_1 entered promiscuous mode [ 51.840113][ T8021] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 51.909195][ T8027] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 51.934558][ T8026] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 51.957351][ T8021] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 51.992851][ T8021] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 52.048394][ T8021] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 52.119300][ T8026] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.128565][ T8029] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.135603][ T8029] bridge0: port 1(bridge_slave_0) entered disabled state [ 52.143536][ T8029] device bridge_slave_0 entered promiscuous mode [ 52.153299][ T8027] team0: Port device team_slave_0 added [ 52.163795][ T8016] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.179753][ T8029] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.187282][ T8029] bridge0: port 2(bridge_slave_1) entered disabled state [ 52.194838][ T8029] device bridge_slave_1 entered promiscuous mode [ 52.207411][ T8027] team0: Port device team_slave_1 added [ 52.269037][ T8027] device hsr_slave_0 entered promiscuous mode [ 52.316572][ T8027] device hsr_slave_1 entered promiscuous mode [ 52.366498][ T8027] debugfs: Directory 'hsr0' with parent '/' already present! [ 52.380113][ T8026] team0: Port device team_slave_0 added [ 52.402073][ T8029] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 52.413563][ T8026] team0: Port device team_slave_1 added [ 52.453642][ T8029] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 52.465412][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.474110][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.518016][ T8026] device hsr_slave_0 entered promiscuous mode [ 52.556982][ T8026] device hsr_slave_1 entered promiscuous mode [ 52.596470][ T8026] debugfs: Directory 'hsr0' with parent '/' already present! [ 52.608100][ T8016] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.633688][ T8019] 8021q: adding VLAN 0 to HW filter on device bond0 [ 52.658401][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 52.667410][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 52.675666][ T3168] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.682829][ T3168] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.691401][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.700837][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 52.709213][ T3168] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.716240][ T3168] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.723767][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 52.732118][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 52.740520][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 52.749364][ T3168] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 52.757705][ T8027] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 52.808449][ T8027] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 52.879323][ T8029] team0: Port device team_slave_0 added [ 52.893164][ T8019] 8021q: adding VLAN 0 to HW filter on device team0 [ 52.911056][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.919179][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 52.927619][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 52.935161][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 52.943061][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 52.952255][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 52.960797][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 52.969291][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 52.977588][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 52.985703][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 52.993960][ T8027] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 53.048555][ T8027] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 53.089381][ T8029] team0: Port device team_slave_1 added [ 53.120850][ T8026] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 53.152183][ T8026] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 53.212785][ T8021] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.219906][ T3961] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.228839][ T3961] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.238315][ T3961] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.245355][ T3961] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.253277][ T3961] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.328983][ T8029] device hsr_slave_0 entered promiscuous mode [ 53.376661][ T8029] device hsr_slave_1 entered promiscuous mode [ 53.416666][ T8029] debugfs: Directory 'hsr0' with parent '/' already present! [ 53.424304][ T8026] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 53.478297][ T8026] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 53.540117][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.549445][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.558673][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.565715][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.573525][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.581987][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.590415][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 53.598472][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 53.616572][ T8021] 8021q: adding VLAN 0 to HW filter on device team0 [ 53.645370][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 53.652803][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 53.660773][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 53.669680][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 53.678234][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.685292][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.692858][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 53.701402][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 53.709844][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.716946][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.724905][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.750832][ T8016] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 53.775858][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 53.792173][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.801684][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.814231][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 53.822520][ T8034] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 53.837764][ T8027] 8021q: adding VLAN 0 to HW filter on device bond0 [ 53.845087][ T8029] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 53.927239][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 53.938109][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 53.949143][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 53.957947][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 53.967072][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 53.975445][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 53.993482][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 54.002464][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 54.011296][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 54.020126][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 54.029016][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 54.037803][ T8035] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 54.046168][ T8029] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 158.996274][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 159.003068][ C0] rcu: 0-...!: (10499 ticks this GP) idle=d4e/1/0x4000000000000002 softirq=10253/10253 fqs=39 [ 159.013624][ C0] (t=10500 jiffies g=5869 q=67) [ 159.018551][ C0] rcu: rcu_preempt kthread starved for 10422 jiffies! g5869 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 159.029637][ C0] rcu: RCU grace-period kthread stack dump: [ 159.035511][ C0] rcu_preempt R running task 29104 10 2 0x80004000 [ 159.043396][ C0] Call Trace: [ 159.046690][ C0] __schedule+0x9a0/0xcc0 [ 159.051016][ C0] schedule+0x181/0x210 [ 159.055163][ C0] schedule_timeout+0x14f/0x240 [ 159.059999][ C0] ? run_local_timers+0x120/0x120 [ 159.065016][ C0] rcu_gp_kthread+0xed8/0x1770 [ 159.069777][ C0] kthread+0x332/0x350 [ 159.073832][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 159.078931][ C0] ? kthread_blkcg+0xe0/0xe0 [ 159.083543][ C0] ret_from_fork+0x24/0x30 [ 159.087975][ C0] NMI backtrace for cpu 0 [ 159.092301][ C0] CPU: 0 PID: 420 Comm: kworker/u4:5 Not tainted 5.4.0-syzkaller #0 [ 159.100258][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 159.110309][ C0] Workqueue: bat_events batadv_nc_worker [ 159.115924][ C0] Call Trace: [ 159.119192][ C0] [ 159.122033][ C0] dump_stack+0x1fb/0x318 [ 159.126353][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 159.131187][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 159.137327][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 159.143374][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 159.149338][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 159.155216][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 159.160316][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 159.165503][ C0] ? trace_hardirqs_off+0x74/0x80 [ 159.170521][ C0] update_process_times+0x12d/0x180 [ 159.175710][ C0] tick_sched_timer+0x263/0x420 [ 159.180548][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 159.186075][ C0] __hrtimer_run_queues+0x403/0x840 [ 159.191290][ C0] hrtimer_interrupt+0x38c/0xda0 [ 159.196231][ C0] ? debug_smp_processor_id+0x9/0x20 [ 159.201507][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 159.207040][ C0] apic_timer_interrupt+0xf/0x20 [ 159.211958][ C0] [ 159.214885][ C0] RIP: 0010:free_thread_stack+0x177/0x590 [ 159.220589][ C0] Code: 80 3c 28 00 74 08 48 89 df e8 25 a4 69 00 48 8b 3b be fc ff 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 [ 159.240196][ C0] RSP: 0018:ffffc90001bf7ae0 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 159.248599][ C0] RAX: ffffffff81487433 RBX: ffff888097178008 RCX: ffff8880a8b504c0 [ 159.256562][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00024b8dc0 [ 159.264522][ C0] RBP: ffffc90001bf7b18 R08: 000000000003a768 R09: ffffed1015236b4f [ 159.272479][ C0] R10: ffffed1015236b4f R11: 0000000000000000 R12: ffff8880971780a0 [ 159.280434][ C0] R13: dffffc0000000000 R14: 1ffff11012e2f014 R15: ffff8880a91b5a68 [ 159.288413][ C0] ? mod_memcg_page_state+0x123/0x190 [ 159.293882][ C0] put_task_stack+0xa3/0x130 [ 159.298458][ C0] finish_task_switch+0x3f1/0x550 [ 159.303469][ C0] __schedule+0x9a8/0xcc0 [ 159.307791][ C0] ? ___preempt_schedule+0x16/0x18 [ 159.312884][ C0] preempt_schedule+0xdb/0x120 [ 159.317634][ C0] ___preempt_schedule+0x16/0x18 [ 159.322556][ C0] ? process_one_work+0x75d/0x10d0 [ 159.327666][ C0] _raw_spin_unlock_irq+0x77/0x80 [ 159.332672][ C0] process_one_work+0x75d/0x10d0 [ 159.337609][ C0] worker_thread+0xc01/0x1630 [ 159.342295][ C0] kthread+0x332/0x350 [ 159.346349][ C0] ? rcu_lock_release+0x30/0x30 [ 159.351183][ C0] ? kthread_blkcg+0xe0/0xe0 [ 159.355760][ C0] ret_from_fork+0x24/0x30