[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 51.023595][ T23] audit: type=1800 audit(1578484338.723:25): pid=8352 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 51.047072][ T23] audit: type=1800 audit(1578484338.723:26): pid=8352 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 51.067790][ T23] audit: type=1800 audit(1578484338.723:27): pid=8352 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.52' (ECDSA) to the list of known hosts. 2020/01/08 11:52:28 fuzzer started 2020/01/08 11:52:30 dialing manager at 10.128.0.26:35703 2020/01/08 11:52:30 syscalls: 2824 2020/01/08 11:52:30 code coverage: enabled 2020/01/08 11:52:30 comparison tracing: enabled 2020/01/08 11:52:30 extra coverage: enabled 2020/01/08 11:52:30 setuid sandbox: enabled 2020/01/08 11:52:30 namespace sandbox: enabled 2020/01/08 11:52:30 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 11:52:30 fault injection: enabled 2020/01/08 11:52:30 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 11:52:30 net packet injection: enabled 2020/01/08 11:52:30 net device setup: enabled 2020/01/08 11:52:30 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 11:52:30 devlink PCI setup: PCI device 0000:00:10.0 is not available 11:52:31 executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) getsockopt$inet_buf(r0, 0x0, 0x30, &(0x7f0000008000), &(0x7f0000000080)=0x2e5) 11:52:31 executing program 1: socketpair$unix(0x1, 0x3, 0x0, &(0x7f00000001c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) bpf$PROG_LOAD(0x5, &(0x7f0000000080)={0x16, 0xe, &(0x7f0000000140)=ANY=[@ANYBLOB="b702000000000400bfa30000000000000703000000feffff7a0af0fff8ffffff71a4f0ff00000000b7060000000000811e6403000000000045040400010000001704000001000a00b7040000000100006a0af2fe00000000850000001a000000b7000000000000009500000000000000"], &(0x7f0000000100)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x0, 0x10, &(0x7f0000000340)}, 0x42) syzkaller login: [ 64.255616][ T8517] IPVS: ftp: loaded support on port[0] = 21 11:52:32 executing program 2: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$PERF_EVENT_IOC_ENABLE(r0, 0x8912, 0x400200) bpf$BPF_BTF_LOAD(0x12, &(0x7f0000002bc0)={&(0x7f0000000200)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0x28, 0x28, 0x2, [@datasec={0x0, 0x1, 0x0, 0xf, 0x1, [{}], "f3"}, @datasec={0x0, 0x0, 0x0, 0xf, 0x3, [], "7794b9"}]}}, &(0x7f0000000380)=""/249, 0x42, 0xf9, 0x8}, 0x20) [ 64.351188][ T8519] IPVS: ftp: loaded support on port[0] = 21 [ 64.460734][ T8517] chnl_net:caif_netlink_parms(): no params data found 11:52:32 executing program 3: r0 = openat$vhost_vsock(0xffffffffffffff9c, &(0x7f0000000140)='/dev/vhost-vsock\x00', 0x2, 0x0) unshare(0x20400) ioctl$VHOST_VSOCK_SET_RUNNING(r0, 0x4008af60, &(0x7f00000006c0)=0x5) [ 64.605091][ T8517] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.613560][ T8517] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.630911][ T8517] device bridge_slave_0 entered promiscuous mode [ 64.667017][ T8517] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.674208][ T8517] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.684736][ T8523] IPVS: ftp: loaded support on port[0] = 21 [ 64.697618][ T8517] device bridge_slave_1 entered promiscuous mode [ 64.740491][ T8517] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.769452][ T8517] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.786694][ T8519] chnl_net:caif_netlink_parms(): no params data found 11:52:32 executing program 4: r0 = socket$inet_udplite(0x2, 0x2, 0x88) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x4, 0x10032, 0xffffffffffffffff, 0x0) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000000480)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000300)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x1}) r2 = socket$inet6_sctp(0xa, 0x5, 0x84) getsockopt$inet_sctp6_SCTP_DELAYED_SACK(r2, 0x84, 0xf, &(0x7f0000013ff4)=@assoc_value, &(0x7f0000002000)=0xff0a) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000280)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fcntl$dupfd(r4, 0x0, r3) ioctl$PERF_EVENT_IOC_ENABLE(r5, 0x8912, 0x400200) getsockopt$inet_sctp6_SCTP_MAXSEG(r2, 0x84, 0xd, &(0x7f0000000000)=@assoc_value, &(0x7f0000000040)=0x8) r6 = dup2(r0, r2) dup3(r6, r1, 0x0) [ 64.872117][ T8517] team0: Port device team_slave_0 added [ 64.880225][ T8517] team0: Port device team_slave_1 added [ 64.925786][ T8519] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.946466][ T8519] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.958940][ T8519] device bridge_slave_0 entered promiscuous mode [ 65.005680][ T8519] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.028090][ T8519] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.035990][ T8519] device bridge_slave_1 entered promiscuous mode [ 65.073973][ T8525] IPVS: ftp: loaded support on port[0] = 21 11:52:32 executing program 5: prlimit64(0x0, 0xe, &(0x7f0000000280)={0x9, 0xff}, 0x0) sched_setattr(0x0, &(0x7f0000000040)={0x30, 0x2, 0x0, 0x0, 0x5}, 0x0) syz_mount_image$vfat(&(0x7f0000000540)='vfat\x00', &(0x7f00000002c0)='./file0\x00', 0x800000000e004, 0x1, &(0x7f0000000240)=[{&(0x7f0000010000)="eb3c906d6b66732e66617400020401ed01000270fff8", 0x16}], 0x0, 0x0) syz_init_net_socket$bt_sco(0x1f, 0x5, 0x2) r0 = open(&(0x7f00000001c0)='./file0\x00', 0x0, 0x0) fchdir(r0) write$cgroup_type(0xffffffffffffffff, &(0x7f00000009c0)='threaded\x00', 0x7666bb) r1 = creat(&(0x7f0000000000)='./bus\x00', 0x0) perf_event_open(&(0x7f000001d000)={0x1, 0x70, 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, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) io_setup(0x4, &(0x7f0000000180)=0x0) io_submit(r2, 0x732, &(0x7f0000000540)=[&(0x7f00000000c0)={0x900000000000010, 0xc00000000000000, 0x80000000000000, 0x1, 0x0, r1, &(0x7f0000000000), 0x377140be6b5ef4c7}]) [ 65.119940][ T8517] device hsr_slave_0 entered promiscuous mode [ 65.167737][ T8517] device hsr_slave_1 entered promiscuous mode [ 65.240657][ T8527] IPVS: ftp: loaded support on port[0] = 21 [ 65.253887][ T8519] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.272918][ T8519] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.306581][ T8523] chnl_net:caif_netlink_parms(): no params data found [ 65.343217][ T8529] IPVS: ftp: loaded support on port[0] = 21 [ 65.385852][ T8523] bridge0: port 1(bridge_slave_0) entered blocking state [ 65.393484][ T8523] bridge0: port 1(bridge_slave_0) entered disabled state [ 65.401209][ T8523] device bridge_slave_0 entered promiscuous mode [ 65.414106][ T8519] team0: Port device team_slave_0 added [ 65.422829][ T8519] team0: Port device team_slave_1 added [ 65.433486][ T8523] bridge0: port 2(bridge_slave_1) entered blocking state [ 65.444719][ T8523] bridge0: port 2(bridge_slave_1) entered disabled state [ 65.452819][ T8523] device bridge_slave_1 entered promiscuous mode [ 65.519401][ T8523] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.559179][ T8519] device hsr_slave_0 entered promiscuous mode [ 65.618190][ T8519] device hsr_slave_1 entered promiscuous mode [ 65.656592][ T8519] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.664391][ T8519] Cannot create hsr debugfs directory [ 65.684903][ T8523] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.722897][ T8523] team0: Port device team_slave_0 added [ 65.734059][ T8523] team0: Port device team_slave_1 added [ 65.789108][ T8523] device hsr_slave_0 entered promiscuous mode [ 65.856745][ T8523] device hsr_slave_1 entered promiscuous mode [ 65.906660][ T8523] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.914247][ T8523] Cannot create hsr debugfs directory [ 65.972848][ T8517] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 66.076245][ T8517] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 66.131053][ T8517] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 66.191240][ T8517] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 66.270018][ T8525] chnl_net:caif_netlink_parms(): no params data found [ 66.321741][ T8527] chnl_net:caif_netlink_parms(): no params data found [ 66.341357][ T8529] chnl_net:caif_netlink_parms(): no params data found [ 66.371959][ T8519] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 66.423210][ T8519] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 66.489787][ T8519] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 66.548617][ T8519] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 66.634143][ T8523] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 66.665035][ T8523] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 66.730002][ T8523] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 66.815669][ T8525] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.823755][ T8525] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.834573][ T8525] device bridge_slave_0 entered promiscuous mode [ 66.853509][ T8523] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 66.917944][ T8525] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.925192][ T8525] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.933053][ T8525] device bridge_slave_1 entered promiscuous mode [ 66.961735][ T8525] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.988773][ T8527] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.995841][ T8527] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.004354][ T8527] device bridge_slave_0 entered promiscuous mode [ 67.018321][ T8525] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.032552][ T8517] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.040352][ T8529] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.050583][ T8529] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.058278][ T8529] device bridge_slave_0 entered promiscuous mode [ 67.066780][ T8529] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.075394][ T8529] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.083112][ T8529] device bridge_slave_1 entered promiscuous mode [ 67.090922][ T8527] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.098035][ T8527] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.105641][ T8527] device bridge_slave_1 entered promiscuous mode [ 67.128574][ T8527] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.155216][ T8525] team0: Port device team_slave_0 added [ 67.164098][ T8525] team0: Port device team_slave_1 added [ 67.172884][ T8527] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.185072][ T8529] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.226105][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 67.234606][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 67.259189][ T8525] device hsr_slave_0 entered promiscuous mode [ 67.307029][ T8525] device hsr_slave_1 entered promiscuous mode [ 67.366589][ T8525] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.374241][ T8525] Cannot create hsr debugfs directory [ 67.381729][ T8529] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.394480][ T8517] 8021q: adding VLAN 0 to HW filter on device team0 [ 67.434298][ T8529] team0: Port device team_slave_0 added [ 67.443891][ T8527] team0: Port device team_slave_0 added [ 67.459658][ T8529] team0: Port device team_slave_1 added [ 67.470106][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 67.479002][ T3077] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 67.487717][ T3077] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.494948][ T3077] bridge0: port 1(bridge_slave_0) entered forwarding state [ 67.511266][ T8527] team0: Port device team_slave_1 added [ 67.569259][ T8527] device hsr_slave_0 entered promiscuous mode [ 67.606861][ T8527] device hsr_slave_1 entered promiscuous mode [ 67.646550][ T8527] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.654146][ T8527] Cannot create hsr debugfs directory [ 67.673924][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 67.682317][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 67.691423][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 67.700229][ T3070] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.707440][ T3070] bridge0: port 2(bridge_slave_1) entered forwarding state [ 67.779655][ T8529] device hsr_slave_0 entered promiscuous mode [ 67.816817][ T8529] device hsr_slave_1 entered promiscuous mode [ 67.856608][ T8529] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.864185][ T8529] Cannot create hsr debugfs directory [ 67.882979][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.891694][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.911691][ T8517] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 67.922436][ T8517] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 67.942622][ T8523] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.961786][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.971939][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.980641][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.989645][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.998377][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.006847][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.015308][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.023778][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.032376][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.040250][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 68.066025][ T8523] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.096937][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.105354][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.148916][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.157679][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.167375][ T3070] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.174464][ T3070] bridge0: port 1(bridge_slave_0) entered forwarding state [ 68.183628][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 68.192233][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 68.200645][ T3070] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.207733][ T3070] bridge0: port 2(bridge_slave_1) entered forwarding state [ 68.215717][ T3070] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 68.259572][ T8519] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.269335][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 68.289732][ T8517] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 68.298465][ T8525] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 68.339173][ T8527] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 68.386507][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 68.393977][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 68.401717][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 68.410365][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 68.419930][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 68.428432][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.436102][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.455281][ T8525] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 68.509372][ T8519] 8021q: adding VLAN 0 to HW filter on device team0 [ 68.516272][ T8525] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 68.558600][ T8527] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 68.618964][ T8527] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 68.678011][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 68.685751][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 68.695116][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 68.716752][ T8525] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 68.756798][ T8527] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 68.804198][ T8529] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 68.848473][ T8529] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 68.880487][ T8529] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 68.938565][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 68.947133][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 68.955343][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 68.964091][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 68.972488][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 68.981400][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 68.989874][ T2746] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.996973][ T2746] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.004602][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.013260][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.021540][ T2746] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.028652][ T2746] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.040367][ T8523] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.054031][ T8529] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 69.088372][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.096207][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.105007][ T2746] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.163029][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.172035][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.182855][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.191676][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.200107][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.207955][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.215494][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.224115][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.232716][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.241494][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.251152][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.290673][ T8523] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.300738][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.310184][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.318582][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.326820][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.335424][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.345214][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.354100][ T8519] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.366960][ T8517] device veth0_vlan entered promiscuous mode [ 69.383031][ T8525] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.424665][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.433222][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.443536][ T8525] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.470039][ T8517] device veth1_vlan entered promiscuous mode [ 69.482610][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.490951][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 69.500143][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 69.523278][ T8523] device veth0_vlan entered promiscuous mode [ 69.535373][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 69.544242][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.553563][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.563410][ T3063] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.570539][ T3063] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.578760][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.587481][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.595776][ T3063] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.603022][ T3063] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.610612][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.620107][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 69.628382][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 69.636839][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.644690][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 69.652861][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 69.667189][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 69.674693][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 69.685473][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.712179][ T8523] device veth1_vlan entered promiscuous mode [ 69.728694][ T8519] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 69.761382][ T8529] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.770275][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 69.782713][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.791655][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.802015][ T2758] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.816835][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.825323][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.834511][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.843026][ T2750] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.857555][ T8527] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.870426][ T8525] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 69.882794][ T8525] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.921769][ T8529] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.974951][ T8527] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.986202][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.995887][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.008537][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.019288][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.029933][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.040058][ T3063] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 174.926343][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 174.933229][ C0] rcu: 0-...!: (10499 ticks this GP) idle=9a6/1/0x4000000000000002 softirq=13415/13415 fqs=6 [ 174.943720][ C0] (t=10501 jiffies g=7049 q=189) [ 174.948736][ C0] rcu: rcu_preempt kthread starved for 10490 jiffies! g7049 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 174.959995][ C0] rcu: RCU grace-period kthread stack dump: [ 174.965890][ C0] rcu_preempt I28984 10 2 0x80004000 [ 174.972211][ C0] Call Trace: [ 174.975498][ C0] __schedule+0x9a0/0xcc0 [ 174.979828][ C0] schedule+0x181/0x210 [ 174.983995][ C0] schedule_timeout+0x14f/0x240 [ 174.988833][ C0] ? run_local_timers+0x120/0x120 [ 174.993848][ C0] rcu_gp_kthread+0xed8/0x1770 [ 174.998610][ C0] kthread+0x332/0x350 [ 175.002671][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 175.007774][ C0] ? kthread_blkcg+0xe0/0xe0 [ 175.012352][ C0] ret_from_fork+0x24/0x30 [ 175.016802][ C0] NMI backtrace for cpu 0 [ 175.021119][ C0] CPU: 0 PID: 2758 Comm: kworker/0:29 Not tainted 5.5.0-rc5-syzkaller #0 [ 175.029658][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 175.039786][ C0] Workqueue: ipv6_addrconf addrconf_dad_work [ 175.045760][ C0] Call Trace: [ 175.049039][ C0] [ 175.051888][ C0] dump_stack+0x1fb/0x318 [ 175.056260][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 175.061100][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 175.067242][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 175.073298][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 175.079268][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 175.085148][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 175.090264][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 175.095454][ C0] ? trace_hardirqs_off+0x74/0x80 [ 175.100468][ C0] update_process_times+0x12d/0x180 [ 175.105658][ C0] tick_sched_timer+0x263/0x420 [ 175.110498][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 175.116037][ C0] __hrtimer_run_queues+0x403/0x840 [ 175.121332][ C0] hrtimer_interrupt+0x38c/0xda0 [ 175.126273][ C0] ? debug_smp_processor_id+0x9/0x20 [ 175.131729][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 175.137281][ C0] apic_timer_interrupt+0xf/0x20 [ 175.142209][ C0] [ 175.145139][ C0] RIP: 0010:free_thread_stack+0x182/0x590 [ 175.150845][ C0] Code: 94 6a 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 39 94 6a 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 1b 94 6a 00 48 8b 1b [ 175.170442][ C0] RSP: 0018:ffffc90007b7f8e8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 175.178841][ C0] RAX: ffff88808f9b5388 RBX: ffff88808f9b5388 RCX: ffff88809f67c0c0 [ 175.186800][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002509cc0 [ 175.194764][ C0] RBP: ffffc90007b7f920 R08: 000000000003a728 R09: ffffed1012ec7ac9 [ 175.202736][ C0] R10: ffffed1012ec7ac9 R11: 0000000000000000 R12: ffff88808f9b5420 [ 175.210701][ C0] R13: dffffc0000000000 R14: 1ffff11011f36a84 R15: ffff88809763d638 [ 175.218680][ C0] ? free_thread_stack+0x168/0x590 [ 175.223783][ C0] put_task_stack+0xa3/0x130 [ 175.228361][ C0] finish_task_switch+0x3f1/0x550 [ 175.233383][ C0] __schedule+0x9a8/0xcc0 [ 175.237726][ C0] ? debug_smp_processor_id+0x9/0x20 [ 175.243002][ C0] schedule+0x181/0x210 [ 175.247150][ C0] schedule_preempt_disabled+0x13/0x20 [ 175.252595][ C0] mutex_optimistic_spin+0x445/0x480 [ 175.257872][ C0] __mutex_lock_common+0x2e7/0x2e10 [ 175.263055][ C0] ? rtnl_lock+0x17/0x20 [ 175.267311][ C0] ? process_one_work+0x75d/0x10d0 [ 175.272447][ C0] mutex_lock_nested+0x1b/0x30 [ 175.277196][ C0] rtnl_lock+0x17/0x20 [ 175.281252][ C0] addrconf_dad_work+0x69/0x1c30 [ 175.286182][ C0] ? rcu_read_lock_sched_held+0x10b/0x170 [ 175.291929][ C0] process_one_work+0x7ef/0x10d0 [ 175.296980][ C0] worker_thread+0xc01/0x1630 [ 175.301693][ C0] kthread+0x332/0x350 [ 175.305766][ C0] ? rcu_lock_release+0x30/0x30 [ 175.310614][ C0] ? kthread_blkcg+0xe0/0xe0 [ 175.315275][ C0] ret_from_fork+0x24/0x30