[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.201774][ T25] audit: type=1800 audit(1575397121.286:25): pid=8334 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.222035][ T25] audit: type=1800 audit(1575397121.296:26): pid=8334 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.273436][ T25] audit: type=1800 audit(1575397121.296:27): pid=8334 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 '10.128.10.31' (ECDSA) to the list of known hosts. 2019/12/03 18:18:52 fuzzer started 2019/12/03 18:18:54 dialing manager at 10.128.0.26:42111 2019/12/03 18:18:54 syscalls: 2689 2019/12/03 18:18:54 code coverage: enabled 2019/12/03 18:18:54 comparison tracing: enabled 2019/12/03 18:18:54 extra coverage: extra coverage is not supported by the kernel 2019/12/03 18:18:54 setuid sandbox: enabled 2019/12/03 18:18:54 namespace sandbox: enabled 2019/12/03 18:18:54 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 18:18:54 fault injection: enabled 2019/12/03 18:18:54 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 18:18:54 net packet injection: enabled 2019/12/03 18:18:54 net device setup: enabled 2019/12/03 18:18:54 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 18:18:54 devlink PCI setup: PCI device 0000:00:10.0 is not available 18:18:55 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000040)={'lo\x00'}) r1 = socket(0xa, 0x1, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'lo\x00', 0x0}) sendmsg$nl_route(r2, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000340)=ANY=[@ANYBLOB="5c000000140021010000000000c300000a000000", @ANYRES32=r3, @ANYBLOB="080008800000000014000200000000000000000000000000000000011400010000f70000000000000000ffffac1e00011400060000000000090000000000000000000000a9f3f83c0200000000000000ab68ce85035fba09f5ae4094559c3d42ffaed95a1f5db09bcd57031847a63ce4f9812d4a62ec953e8b8cb86180e10846fadc05a5f7d793eddcc9003f72adf86f382295064301f0d4e20f841f2e0767ff79b53b86119cc3"], 0x5c}}, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000080)={'lo\x00\x00\x00\x00\x04\x00\x00\x00\x00\x06\x00', 0xfd}) 18:18:55 executing program 1: pipe(&(0x7f00000004c0)) r0 = socket$inet_udp(0x2, 0x2, 0x0) close(r0) syz_open_dev$amidi(&(0x7f00000006c0)='/dev/amidi#\x00', 0x2, 0x0) r1 = syz_open_dev$amidi(&(0x7f00000006c0)='/dev/amidi#\x00', 0x2, 0x0) ioctl$SNDRV_RAWMIDI_IOCTL_STATUS(r1, 0xc0385720, &(0x7f00000000c0)={0x1}) syzkaller login: [ 66.417053][ T8499] IPVS: ftp: loaded support on port[0] = 21 18:18:55 executing program 2: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000100)='/dev/ptmx\x00', 0x2, 0x0) ioctl$TCSETS(r0, 0x40045431, &(0x7f00000000c0)) write$binfmt_elf64(r0, &(0x7f0000000140)=ANY=[@ANYBLOB="fdffffffb8"], 0x5) r1 = syz_open_pts(r0, 0x0) ioctl$TCSETAW(r1, 0x5407, &(0x7f0000000000)={0xffffffffffffffff, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x7f}) ioctl$TCSETSF(r1, 0x5412, &(0x7f0000000040)={0x7f}) [ 66.598204][ T8499] chnl_net:caif_netlink_parms(): no params data found [ 66.656835][ T8503] IPVS: ftp: loaded support on port[0] = 21 [ 66.705999][ T8499] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.713843][ T8499] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.722417][ T8499] device bridge_slave_0 entered promiscuous mode [ 66.746437][ T8499] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.754622][ T8499] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.762907][ T8499] device bridge_slave_1 entered promiscuous mode [ 66.798892][ T8499] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.810447][ T8499] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.870142][ T8504] IPVS: ftp: loaded support on port[0] = 21 [ 66.879568][ T8499] team0: Port device team_slave_0 added [ 66.895047][ T8499] team0: Port device team_slave_1 added 18:18:56 executing program 3: r0 = socket$inet(0x10, 0x80003, 0x0) r1 = socket$inet6(0xa, 0x3, 0x6b) ioctl(r1, 0x1000008912, &(0x7f0000000000)="0815b5055e0bcfe87b3071") sendmsg(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000001c0)="24000000200007041dfffd946f6105000200000a1f0000090028080008001800e9110012", 0x24}], 0x1}, 0x0) [ 66.983987][ T8503] chnl_net:caif_netlink_parms(): no params data found [ 67.048051][ T8499] device hsr_slave_0 entered promiscuous mode [ 67.115336][ T8499] device hsr_slave_1 entered promiscuous mode 18:18:56 executing program 4: r0 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uinput\x00', 0x2, 0x0) writev(r0, &(0x7f0000001840)=[{&(0x7f0000000040)='1', 0x1}], 0x1) [ 67.206963][ T8503] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.223523][ T8503] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.231636][ T8503] device bridge_slave_0 entered promiscuous mode [ 67.251107][ T8507] IPVS: ftp: loaded support on port[0] = 21 [ 67.276437][ T8503] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.289883][ T8503] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.300360][ T8503] device bridge_slave_1 entered promiscuous mode [ 67.422917][ T8499] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.482493][ T8503] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.516265][ T8499] netdevsim netdevsim0 netdevsim1: renamed from eth1 18:18:56 executing program 5: io_setup(0x5f, &(0x7f00000000c0)=0x0) r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000140)='/dev/net/tun\x00', 0x806, 0x0) ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000000)={'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x00\r', 0x20000005002}) io_submit(r0, 0x8, &(0x7f0000000280)=[&(0x7f0000000180)={0x0, 0x0, 0x0, 0x800000000001, 0x0, r1, &(0x7f0000000040), 0x200000a5}]) [ 67.528447][ T8510] IPVS: ftp: loaded support on port[0] = 21 [ 67.557173][ T8499] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.617611][ T8503] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.642993][ T8504] chnl_net:caif_netlink_parms(): no params data found [ 67.671773][ T8499] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 67.734821][ T8503] team0: Port device team_slave_0 added [ 67.759391][ T8503] team0: Port device team_slave_1 added [ 67.778801][ T8504] bridge0: port 1(bridge_slave_0) entered blocking state [ 67.787397][ T8504] bridge0: port 1(bridge_slave_0) entered disabled state [ 67.795919][ T8504] device bridge_slave_0 entered promiscuous mode [ 67.815052][ T8512] IPVS: ftp: loaded support on port[0] = 21 [ 67.828172][ T8504] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.835806][ T8504] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.844254][ T8504] device bridge_slave_1 entered promiscuous mode [ 67.916597][ T8503] device hsr_slave_0 entered promiscuous mode [ 67.954056][ T8503] device hsr_slave_1 entered promiscuous mode [ 68.023623][ T8503] debugfs: Directory 'hsr0' with parent '/' already present! [ 68.109773][ T8504] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.121780][ T8504] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.172591][ T8504] team0: Port device team_slave_0 added [ 68.212666][ T8503] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 68.286300][ T8503] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 68.348267][ T8504] team0: Port device team_slave_1 added [ 68.365475][ T8503] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 68.416145][ T8507] chnl_net:caif_netlink_parms(): no params data found [ 68.426520][ T8510] chnl_net:caif_netlink_parms(): no params data found [ 68.449676][ T8503] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 68.536402][ T8504] device hsr_slave_0 entered promiscuous mode [ 68.584077][ T8504] device hsr_slave_1 entered promiscuous mode [ 68.633625][ T8504] debugfs: Directory 'hsr0' with parent '/' already present! [ 68.680894][ T8507] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.688774][ T8507] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.697135][ T8507] device bridge_slave_0 entered promiscuous mode [ 68.719397][ T8510] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.726702][ T8510] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.735762][ T8510] device bridge_slave_0 entered promiscuous mode [ 68.764383][ T8507] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.771469][ T8507] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.779600][ T8507] device bridge_slave_1 entered promiscuous mode [ 68.807494][ T8510] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.814788][ T8510] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.822883][ T8510] device bridge_slave_1 entered promiscuous mode [ 68.844651][ T8504] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 68.917139][ T8507] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.928249][ T8507] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.939435][ T8510] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.951246][ T8510] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.960775][ T8504] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 69.007963][ T8504] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 69.068729][ T8504] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.147809][ T8512] chnl_net:caif_netlink_parms(): no params data found [ 69.168749][ T8507] team0: Port device team_slave_0 added [ 69.179881][ T8510] team0: Port device team_slave_0 added [ 69.188111][ T8510] team0: Port device team_slave_1 added [ 69.206364][ T8507] team0: Port device team_slave_1 added [ 69.225519][ T8499] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.296560][ T8507] device hsr_slave_0 entered promiscuous mode [ 69.333996][ T8507] device hsr_slave_1 entered promiscuous mode [ 69.383716][ T8507] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.466721][ T8510] device hsr_slave_0 entered promiscuous mode [ 69.525173][ T8510] device hsr_slave_1 entered promiscuous mode [ 69.563614][ T8510] debugfs: Directory 'hsr0' with parent '/' already present! [ 69.591867][ T8499] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.609612][ T8512] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.617610][ T8512] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.626182][ T8512] device bridge_slave_0 entered promiscuous mode [ 69.634794][ T8512] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.641940][ T8512] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.649930][ T8512] device bridge_slave_1 entered promiscuous mode [ 69.680618][ T2970] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.689271][ T2970] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.722785][ T3028] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.733258][ T3028] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.742623][ T3028] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.750118][ T3028] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.760674][ T3028] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.790760][ T8512] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.808777][ T8507] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 69.867141][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.875947][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.884987][ T8513] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.892172][ T8513] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.901741][ T8504] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.915768][ T8512] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.929991][ T8507] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 69.976075][ T8507] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 70.037303][ T8507] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 70.102575][ T8504] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.115876][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.126790][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.135341][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.151371][ T8503] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.167803][ T8510] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.206136][ T8510] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 70.255786][ T2970] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.279186][ T8512] team0: Port device team_slave_0 added [ 70.289030][ T8510] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 70.338884][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.351821][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.361073][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.370896][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.379764][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.388252][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.397912][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.408740][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.419212][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.430817][ T8503] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.441436][ T8512] team0: Port device team_slave_1 added [ 70.448131][ T8510] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 70.531002][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.540096][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.551197][ T39] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.558553][ T39] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.567186][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.576147][ T39] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.602133][ T8499] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.614834][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.622889][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.632113][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.641199][ T8513] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.648345][ T8513] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.656930][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.665957][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.675030][ T8513] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.682256][ T8513] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.689953][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.698960][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.707784][ T8513] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.715102][ T8513] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.722805][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.732077][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.741225][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.751190][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.764479][ T2970] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.817886][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.826906][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.835747][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.847222][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.856130][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.863923][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.871600][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.881289][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.890102][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.899593][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.908532][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.917096][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.925802][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.934696][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.945124][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.953258][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.002644][ T8499] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.057582][ T8512] device hsr_slave_0 entered promiscuous mode [ 71.113892][ T8512] device hsr_slave_1 entered promiscuous mode [ 71.153598][ T8512] debugfs: Directory 'hsr0' with parent '/' already present! [ 71.166970][ T8504] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.178408][ T8504] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.190917][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.199902][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.209652][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.217714][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.226068][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.235161][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.246344][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.261491][ T8503] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.342645][ T8510] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.375194][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.384972][ T8513] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.393923][ T8512] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 71.459260][ T8512] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 71.516703][ T8512] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 71.568812][ T8504] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.576978][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.588201][ T8516] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.608032][ T8510] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.629005][ T8512] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 176.633323][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 176.640157][ C0] rcu: 0-...!: (10499 ticks this GP) idle=462/1/0x4000000000000002 softirq=12798/12798 fqs=142 [ 176.651004][ C0] (t=10500 jiffies g=7273 q=144) [ 176.656115][ C0] rcu: rcu_preempt kthread starved for 10201 jiffies! g7273 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 176.667290][ C0] rcu: RCU grace-period kthread stack dump: [ 176.673180][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 176.681257][ C0] Call Trace: [ 176.684645][ C0] __schedule+0x9a0/0xcc0 [ 176.689240][ C0] schedule+0x181/0x210 [ 176.693387][ C0] schedule_timeout+0x14f/0x240 [ 176.698230][ C0] ? run_local_timers+0x120/0x120 [ 176.703251][ C0] rcu_gp_kthread+0xed8/0x1770 [ 176.708466][ C0] kthread+0x332/0x350 [ 176.712626][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 176.717903][ C0] ? kthread_blkcg+0xe0/0xe0 [ 176.722573][ C0] ret_from_fork+0x24/0x30 [ 176.727167][ C0] NMI backtrace for cpu 0 [ 176.731492][ C0] CPU: 0 PID: 8520 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 [ 176.739893][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.750200][ C0] Call Trace: [ 176.753561][ C0] [ 176.756494][ C0] dump_stack+0x1fb/0x318 [ 176.760831][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 176.765705][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 176.772133][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 176.778291][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 176.784352][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 176.790587][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 176.795699][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 176.800897][ C0] ? trace_hardirqs_off+0x74/0x80 [ 176.805932][ C0] update_process_times+0x12d/0x180 [ 176.811212][ C0] tick_sched_timer+0x263/0x420 [ 176.817357][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 176.822982][ C0] __hrtimer_run_queues+0x403/0x840 [ 176.828366][ C0] hrtimer_interrupt+0x38c/0xda0 [ 176.833403][ C0] ? debug_smp_processor_id+0x9/0x20 [ 176.838868][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 176.844680][ C0] apic_timer_interrupt+0xf/0x20 [ 176.849605][ C0] [ 176.852767][ C0] RIP: 0010:free_thread_stack+0x195/0x590 [ 176.858848][ C0] Code: 2e 00 74 08 4c 89 e7 e8 09 a4 69 00 49 8b 1c 24 48 83 c3 08 48 89 d8 48 c1 e8 03 42 80 3c 28 00 74 08 48 89 df e8 eb a3 69 00 <48> 8b 1b e9 82 ff ff ff e8 de 2c 2e 00 43 80 3c 2e 00 75 18 eb 1e [ 176.878872][ C0] RSP: 0018:ffffc90002657d40 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 176.887309][ C0] RAX: 1ffff1101122d0e1 RBX: ffff888089168708 RCX: ffff8880a087c480 [ 176.895368][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea00023e0140 [ 176.903418][ C0] RBP: ffffc90002657d78 R08: dffffc0000000000 R09: fffffbfff120248a [ 176.911468][ C0] R10: fffffbfff120248a R11: 0000000000000000 R12: ffff8880891687a0 [ 176.919445][ C0] R13: dffffc0000000000 R14: 1ffff1101122d0f4 R15: ffff8880a862ba28 [ 176.927705][ C0] put_task_stack+0xa3/0x130 [ 176.932291][ C0] finish_task_switch+0x3f1/0x550 [ 176.937309][ C0] __schedule+0x9a8/0xcc0 [ 176.941731][ C0] ? check_preemption_disabled+0xb4/0x260 [ 176.947670][ C0] schedule+0x181/0x210 [ 176.952105][ C0] prepare_exit_to_usermode+0x2d4/0x5b0 [ 176.958086][ C0] ret_from_intr+0x26/0x36 [ 176.962712][ C0] RIP: 0033:0x40f62b [ 176.966951][ C0] Code: 00 00 48 8b 70 08 41 bd 00 00 00 80 4a 8d 04 2e 48 3d ff ff ff 7e 0f 87 94 00 00 00 45 31 ff 31 db 31 ed 0f 1f 40 00 48 89 df <89> f0 48 31 f7 c1 e8 10 83 f6 3d 31 c6 44 8d 4f 04 41 89 f8 8d 1c [ 176.987154][ C0] RSP: 002b:00007ffc8ffdfbd0 EFLAGS: 00000297 ORIG_RAX: ffffffffffffff02 [ 176.995650][ C0] RAX: 0000000001b169da RBX: 000000002fc52596 RCX: 0000001b2fe20000 [ 177.003886][ C0] RDX: 00000000804624d5 RSI: ffffffff81b169da RDI: 000000002fc52596 [ 177.012155][ C0] RBP: 000000000000008b R08: 00000000804624d5 R09: 00000000804624d9 [ 177.021021][ C0] R10: 00007ffc8ffdfd70 R11: 0000000000000246 R12: 000000000075bfa8 [ 177.029600][ C0] R13: 0000000080000000 R14: 00007f5d6336d008 R15: 0000000000000256 [ 177.037731][ C0] ? page_poisoning_enabled+0xa/0x30