[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 54.424319][ T26] audit: type=1800 audit(1578465753.788:25): pid=8399 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 54.456591][ T26] audit: type=1800 audit(1578465753.788:26): pid=8399 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 54.491545][ T26] audit: type=1800 audit(1578465753.788:27): pid=8399 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 '10.128.10.40' (ECDSA) to the list of known hosts. 2020/01/08 06:42:42 fuzzer started 2020/01/08 06:42:44 dialing manager at 10.128.0.26:35703 2020/01/08 06:42:44 syscalls: 2824 2020/01/08 06:42:44 code coverage: enabled 2020/01/08 06:42:44 comparison tracing: enabled 2020/01/08 06:42:44 extra coverage: enabled 2020/01/08 06:42:44 setuid sandbox: enabled 2020/01/08 06:42:44 namespace sandbox: enabled 2020/01/08 06:42:44 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 06:42:44 fault injection: enabled 2020/01/08 06:42:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 06:42:44 net packet injection: enabled 2020/01/08 06:42:44 net device setup: enabled 2020/01/08 06:42:44 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 06:42:44 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:42:45 executing program 0: syz_open_dev$video(&(0x7f0000000100)='/dev/video#\x00', 0x0, 0x0) r0 = syz_open_dev$video(0x0, 0x0, 0x0) ioctl$VIDIOC_S_FMT(r0, 0xc0d05605, &(0x7f0000000180)={0x3, @vbi}) 06:42:45 executing program 1: r0 = creat(&(0x7f0000000580)='./bus\x00', 0x0) fcntl$setstatus(r0, 0x4, 0x98428d57a99b5f44) io_setup(0xc, &(0x7f0000000100)=0x0) r2 = creat(&(0x7f0000000080)='./bus\x00', 0x0) ioctl$EXT4_IOC_SETFLAGS(r2, 0x40086602, &(0x7f0000000040)) write$binfmt_elf64(r2, &(0x7f0000000000)=ANY=[@ANYRESDEC], 0xfd14) fallocate(r2, 0x100000003, 0x0, 0x28120001) io_submit(r1, 0x200002f1, &(0x7f0000000540)=[&(0x7f00000000c0)={0x0, 0x0, 0x80000000000000, 0x1, 0x0, r0, &(0x7f0000000000), 0x377140be6b5ef4c7}]) syzkaller login: [ 65.966615][ T8567] IPVS: ftp: loaded support on port[0] = 21 [ 66.057444][ T8569] IPVS: ftp: loaded support on port[0] = 21 06:42:45 executing program 2: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$inet_tcp(0x2, 0x1, 0x0) bind$inet(0xffffffffffffffff, &(0x7f0000000200)={0x2, 0x0, @multicast1}, 0x10) ioctl$VHOST_SET_MEM_TABLE(0xffffffffffffffff, 0x4008af03, &(0x7f00000004c0)=ANY=[@ANYBLOB]) dup2(0xffffffffffffffff, 0xffffffffffffffff) setsockopt$sock_int(0xffffffffffffffff, 0x1, 0x3c, 0x0, 0xfffffffffffffe35) openat$autofs(0xffffffffffffff9c, 0x0, 0x0, 0x0) ioctl$SCSI_IOCTL_GET_BUS_NUMBER(0xffffffffffffffff, 0x5386, 0x0) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000280)='veth0_to_bond\x00', 0x10) r1 = openat$rdma_cm(0xffffffffffffff9c, &(0x7f0000000140)='/dev/infiniband/rdma_cm\x00', 0x2, 0x0) write$RDMA_USER_CM_CMD_CREATE_ID(r1, &(0x7f0000000280)={0x0, 0x18, 0xfa00, {0x0, &(0x7f0000000000)={0xffffffffffffffff}, 0x13f}}, 0x20) write$RDMA_USER_CM_CMD_RESOLVE_IP(r1, &(0x7f0000000400)={0x3, 0x40, 0xfa00, {{0xa, 0x0, 0x0, @dev, 0x4}, {0xa, 0x0, 0x0, @ipv4={[], [], @multicast1}}, r2}}, 0x48) write$RDMA_USER_CM_CMD_RESOLVE_IP(r1, &(0x7f00000000c0)={0x3, 0x40, 0xfa00, {{0x2, 0x0, 0x0, @rand_addr="04d80adce20f9259329568b6080100ec"}, {0x2, 0x0, 0x0, @local={0xfe, 0x80, [0x0, 0x0, 0x0, 0x0, 0x0, 0xf000000, 0xfd000000, 0x0, 0x4]}}, r2}}, 0x48) arch_prctl$ARCH_GET_FS(0x1003, 0x0) ioctl$PPPIOCCONNECT(0xffffffffffffffff, 0x4004743a, 0x0) socketpair$unix(0x1, 0x0, 0x0, 0x0) getsockname$packet(0xffffffffffffffff, 0x0, 0x0) socket$netlink(0x10, 0x3, 0x0) syz_open_dev$usbfs(0x0, 0x77, 0x1) [ 66.169504][ T8567] chnl_net:caif_netlink_parms(): no params data found [ 66.269574][ T8569] chnl_net:caif_netlink_parms(): no params data found [ 66.288770][ T8567] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.296685][ T8567] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.305741][ T8567] device bridge_slave_0 entered promiscuous mode [ 66.323409][ T8567] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.330542][ T8567] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.339425][ T8567] device bridge_slave_1 entered promiscuous mode [ 66.371106][ T8567] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.384652][ T8567] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.434770][ T8567] team0: Port device team_slave_0 added [ 66.443594][ T8567] team0: Port device team_slave_1 added [ 66.449458][ T8569] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.457309][ T8569] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.465261][ T8569] device bridge_slave_0 entered promiscuous mode 06:42:45 executing program 3: r0 = syz_open_dev$sndtimer(&(0x7f0000000480)='/dev/snd/timer\x00', 0x0, 0x0) ioctl$SNDRV_TIMER_IOCTL_NEXT_DEVICE(r0, 0x40345410, &(0x7f00000004c0)={0x3, 0x0, 0x1, 0x2}) [ 66.484234][ T8569] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.491374][ T8569] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.501352][ T8569] device bridge_slave_1 entered promiscuous mode [ 66.516641][ T8573] IPVS: ftp: loaded support on port[0] = 21 [ 66.566170][ T8567] device hsr_slave_0 entered promiscuous mode [ 66.672485][ T8567] device hsr_slave_1 entered promiscuous mode 06:42:46 executing program 4: bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x3, 0xe, &(0x7f0000000280)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00'}, 0x48) [ 66.781135][ T8569] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.805427][ T8569] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.873271][ T8569] team0: Port device team_slave_0 added [ 66.885510][ T8575] IPVS: ftp: loaded support on port[0] = 21 [ 66.893109][ T8569] team0: Port device team_slave_1 added 06:42:46 executing program 5: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup/syz0\x00', 0x200002, 0x0) r1 = openat$cgroup_int(r0, &(0x7f0000000140)='hugetlb.2MB.limit_in_bytes\x00', 0x2, 0x0) pwritev(r1, &(0x7f0000000300)=[{&(0x7f0000000200)="45a03bc40db7e5b02ddf3196db1f98a4716b48b9145233977db427975e54a9afc4bfcfaedfda18a9ac45c1d06cac6e48e244cc1eddc2f3539eb66121d188c4ac4d26170968e2d27b8d83", 0x1}], 0x1cf, 0x0) [ 67.035444][ T8569] device hsr_slave_0 entered promiscuous mode [ 67.073157][ T8569] device hsr_slave_1 entered promiscuous mode [ 67.132930][ T8569] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.140742][ T8569] Cannot create hsr debugfs directory [ 67.171035][ T8578] IPVS: ftp: loaded support on port[0] = 21 [ 67.217404][ T8567] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.286930][ T8580] IPVS: ftp: loaded support on port[0] = 21 [ 67.298819][ T8567] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.394627][ T8567] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.465994][ T8567] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.614026][ T8573] chnl_net:caif_netlink_parms(): no params data found [ 67.656696][ T8569] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 67.735925][ T8575] chnl_net:caif_netlink_parms(): no params data found [ 67.745555][ T8569] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 67.833138][ T8569] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 67.864816][ T8569] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 67.951230][ T8573] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.959007][ T8573] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.966860][ T8573] device bridge_slave_0 entered promiscuous mode [ 68.004015][ T8575] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.011794][ T8575] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.020138][ T8575] device bridge_slave_0 entered promiscuous mode [ 68.028252][ T8573] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.035992][ T8573] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.043926][ T8573] device bridge_slave_1 entered promiscuous mode [ 68.085600][ T8575] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.094351][ T8575] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.102738][ T8575] device bridge_slave_1 entered promiscuous mode [ 68.120873][ T8573] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.134512][ T8578] chnl_net:caif_netlink_parms(): no params data found [ 68.160984][ T8573] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.204262][ T8575] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.216531][ T8580] chnl_net:caif_netlink_parms(): no params data found [ 68.228240][ T8573] team0: Port device team_slave_0 added [ 68.245046][ T8567] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.254006][ T8575] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.276802][ T8573] team0: Port device team_slave_1 added [ 68.289356][ T8575] team0: Port device team_slave_0 added [ 68.332392][ T8580] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.339635][ T8580] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.347444][ T8580] device bridge_slave_0 entered promiscuous mode [ 68.363408][ T8575] team0: Port device team_slave_1 added [ 68.378288][ T8580] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.385723][ T8580] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.393626][ T8580] device bridge_slave_1 entered promiscuous mode [ 68.400753][ T8578] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.408403][ T8578] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.417595][ T8578] device bridge_slave_0 entered promiscuous mode [ 68.474597][ T8573] device hsr_slave_0 entered promiscuous mode [ 68.512758][ T8573] device hsr_slave_1 entered promiscuous mode [ 68.551982][ T8573] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.559683][ T8573] Cannot create hsr debugfs directory [ 68.594558][ T8578] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.601673][ T8578] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.609617][ T8578] device bridge_slave_1 entered promiscuous mode [ 68.674843][ T8575] device hsr_slave_0 entered promiscuous mode [ 68.712434][ T8575] device hsr_slave_1 entered promiscuous mode [ 68.752450][ T8575] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.760225][ T8575] Cannot create hsr debugfs directory [ 68.768489][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.777285][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.792525][ T8580] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.803332][ T8578] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.820341][ T8578] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.832140][ T8567] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.853145][ T8580] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.907668][ T8578] team0: Port device team_slave_0 added [ 68.917513][ T8578] team0: Port device team_slave_1 added [ 68.938958][ T8580] team0: Port device team_slave_0 added [ 68.948250][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.957786][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.966506][ T2812] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.973627][ T2812] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.986844][ T2812] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.011255][ T8580] team0: Port device team_slave_1 added [ 69.030842][ T8573] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 69.068499][ T8573] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 69.118852][ T8573] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 69.165190][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.173816][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.182353][ T2808] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.189410][ T2808] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.211965][ T2811] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.220915][ T2811] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.229531][ T2811] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.238728][ T2811] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.284690][ T8580] device hsr_slave_0 entered promiscuous mode [ 69.322427][ T8580] device hsr_slave_1 entered promiscuous mode [ 69.362087][ T8580] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.369687][ T8580] Cannot create hsr debugfs directory [ 69.383006][ T8573] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.454684][ T2815] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.462747][ T2815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.471263][ T2815] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.514087][ T8578] device hsr_slave_0 entered promiscuous mode [ 69.572182][ T8578] device hsr_slave_1 entered promiscuous mode [ 69.622081][ T8578] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.629776][ T8578] Cannot create hsr debugfs directory [ 69.649131][ T8569] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.662238][ T8575] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 69.729087][ T8575] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 69.799183][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.808790][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.818446][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.827019][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.838095][ T8567] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.851374][ T8575] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 69.888824][ T8575] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 69.960800][ T2815] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.968555][ T2815] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.979683][ T8569] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.010701][ T8567] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.034872][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.045669][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.073936][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.084218][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.093128][ T2808] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.100200][ T2808] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.108083][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.116780][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.125296][ T2808] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.132387][ T2808] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.157149][ T8580] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 70.204587][ T8580] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 70.273804][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.281625][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.290566][ T2747] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.326800][ T8580] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 70.373893][ T8580] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 70.419666][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.428696][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.437421][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.446263][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.485864][ T8567] device veth0_vlan entered promiscuous mode [ 70.498870][ T8569] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 70.511626][ T8569] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.523418][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.531135][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.539844][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.548264][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.557513][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.566357][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.574630][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.583298][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.591540][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.600201][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.607887][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.616595][ T2808] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.624393][ T8578] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.677857][ T8578] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.741638][ T8578] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 70.774187][ T8578] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 70.837280][ T8567] device veth1_vlan entered promiscuous mode [ 70.868998][ T8575] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.912283][ T2811] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.919797][ T2811] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.946487][ T8573] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.960471][ T8575] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.970762][ T8569] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.990825][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.999291][ T2810] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.021749][ T8573] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.084871][ T8578] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.102759][ T8578] 8021q: adding VLAN 0 to HW filter on device team0 [ 176.051836][ C1] rcu: INFO: rcu_preempt self-detected stall on CPU [ 176.058717][ C1] rcu: 1-...!: (10499 ticks this GP) idle=232/1/0x4000000000000002 softirq=14608/14608 fqs=4 [ 176.069241][ C1] (t=10501 jiffies g=6829 q=414) [ 176.074259][ C1] rcu: rcu_preempt kthread starved for 10494 jiffies! g6829 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 176.085345][ C1] rcu: RCU grace-period kthread stack dump: [ 176.091220][ C1] rcu_preempt R running task 29032 10 2 0x80004000 [ 176.099106][ C1] Call Trace: [ 176.102401][ C1] __schedule+0x9a0/0xcc0 [ 176.106726][ C1] schedule+0x181/0x210 [ 176.110966][ C1] schedule_timeout+0x14f/0x240 [ 176.115805][ C1] ? run_local_timers+0x120/0x120 [ 176.120823][ C1] rcu_gp_kthread+0xed8/0x1770 [ 176.125597][ C1] kthread+0x332/0x350 [ 176.129653][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 176.134751][ C1] ? kthread_blkcg+0xe0/0xe0 [ 176.139342][ C1] ret_from_fork+0x24/0x30 [ 176.143858][ C1] NMI backtrace for cpu 1 [ 176.148195][ C1] CPU: 1 PID: 8567 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 176.156770][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.166844][ C1] Call Trace: [ 176.170122][ C1] [ 176.172981][ C1] dump_stack+0x1fb/0x318 [ 176.177305][ C1] nmi_cpu_backtrace+0xaf/0x1a0 [ 176.182148][ C1] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 176.188291][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 176.194346][ C1] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 176.200318][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 176.206200][ C1] rcu_dump_cpu_stacks+0x15a/0x220 [ 176.212608][ C1] rcu_sched_clock_irq+0xe25/0x1ad0 [ 176.217802][ C1] ? trace_hardirqs_off+0x74/0x80 [ 176.222839][ C1] update_process_times+0x12d/0x180 [ 176.228205][ C1] tick_sched_timer+0x263/0x420 [ 176.233311][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 176.238854][ C1] __hrtimer_run_queues+0x403/0x840 [ 176.244059][ C1] hrtimer_interrupt+0x38c/0xda0 [ 176.249003][ C1] ? debug_smp_processor_id+0x9/0x20 [ 176.254282][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 176.259832][ C1] apic_timer_interrupt+0xf/0x20 [ 176.264762][ C1] [ 176.267691][ C1] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x50 [ 176.273760][ C1] Code: 84 00 00 00 00 00 55 48 89 e5 53 48 89 fb e8 13 00 00 00 48 8b 3d f4 f4 ed 07 48 89 de e8 84 f4 3b 00 5b 5d c3 cc 48 8b 04 24 <65> 48 8b 0c 25 c0 1d 02 00 65 8b 15 38 5f 8b 7e f7 c2 00 01 1f 00 [ 176.293443][ C1] RSP: 0018:ffffc90001e27b98 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 176.301842][ C1] RAX: ffffffff814896c6 RBX: ffffea0002423b00 RCX: 0000000000000000 [ 176.309806][ C1] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002423b00 [ 176.317768][ C1] RBP: ffffc90001e27bc0 R08: 000000000003a728 R09: ffffed10144ffae1 [ 176.325732][ C1] R10: ffffed10144ffae1 R11: 0000000000000000 R12: ffff88809aef20a0 [ 176.333689][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff8880a27fd6f8 [ 176.341680][ C1] ? mod_memcg_page_state+0x16/0x190 [ 176.346980][ C1] ? free_thread_stack+0x124/0x590 [ 176.352090][ C1] ? mod_memcg_page_state+0x16/0x190 [ 176.357385][ C1] free_thread_stack+0x168/0x590 [ 176.362321][ C1] put_task_stack+0xa3/0x130 [ 176.366904][ C1] finish_task_switch+0x3f1/0x550 [ 176.371961][ C1] __schedule+0x9a8/0xcc0 [ 176.376301][ C1] schedule+0x181/0x210 [ 176.380452][ C1] do_nanosleep+0x1d0/0x6c0 [ 176.384956][ C1] hrtimer_nanosleep+0x3a6/0x5b0 [ 176.389896][ C1] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 176.395697][ C1] __x64_sys_nanosleep+0x186/0x1d0 [ 176.400798][ C1] do_syscall_64+0xf7/0x1c0 [ 176.405300][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 176.411182][ C1] RIP: 0033:0x4593f0 [ 176.415085][ C1] 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 41 f5 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 [ 176.435113][ C1] RSP: 002b:00007ffd702a5838 EFLAGS: 00000246 ORIG_RAX: 0000000000000023 [ 176.443514][ C1] RAX: ffffffffffffffda RBX: 0000000000011559 RCX: 00000000004593f0 [ 176.451487][ C1] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd702a5840 [ 176.459448][ C1] RBP: 0000000000000002 R08: 0000000000000001 R09: 000000000105b940 [ 176.467406][ C1] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 [ 176.475365][ C1] R13: 00007ffd702a5890 R14: 000000000001154c R15: 00007ffd702a58a0