[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 50.796717][ T27] audit: type=1800 audit(1578469676.216:25): pid=8327 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 50.815544][ T27] audit: type=1800 audit(1578469676.226:26): pid=8327 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 50.869627][ T27] audit: type=1800 audit(1578469676.226:27): pid=8327 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 '10.128.0.13' (ECDSA) to the list of known hosts. 2020/01/08 07:48:08 fuzzer started 2020/01/08 07:48:10 dialing manager at 10.128.0.26:35703 2020/01/08 07:48:10 syscalls: 2824 2020/01/08 07:48:10 code coverage: enabled 2020/01/08 07:48:10 comparison tracing: enabled 2020/01/08 07:48:10 extra coverage: enabled 2020/01/08 07:48:10 setuid sandbox: enabled 2020/01/08 07:48:10 namespace sandbox: enabled 2020/01/08 07:48:10 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 07:48:10 fault injection: enabled 2020/01/08 07:48:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 07:48:10 net packet injection: enabled 2020/01/08 07:48:10 net device setup: enabled 2020/01/08 07:48:10 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 07:48:10 devlink PCI setup: PCI device 0000:00:10.0 is not available 07:48:11 executing program 0: socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)={0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = add_key$keyring(&(0x7f00000000c0)='keyring\x00', &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xffffffffffffffff) r3 = add_key$keyring(&(0x7f0000000300)='keyring\x00', &(0x7f0000000340)={'syz', 0x3}, 0x0, 0x0, r2) r4 = add_key$keyring(&(0x7f00000004c0)='keyring\x00', &(0x7f0000000180)={'syz', 0x1}, 0x0, 0x0, r3) keyctl$setperm(0x5, r4, 0x202002) keyctl$chown(0x4, r4, 0x0, 0x0) 07:48:11 executing program 1: r0 = socket$inet6(0xa, 0x80003, 0xff) ioctl(r0, 0x1000008912, &(0x7f0000000080)="0800b5055e0bcfe87b2071") r1 = socket$kcm(0x10, 0x3, 0x10) sendmsg$kcm(r1, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f0000000080)="2e0000002300817ee45de087185082cf0400b0eb04000d00160011000586f9835b3f0a009148790e03f85acc7c45", 0x2e}], 0x1, 0x0, 0x0, 0x251ef}, 0x0) syzkaller login: [ 66.510007][ T8494] IPVS: ftp: loaded support on port[0] = 21 [ 66.577989][ T8496] IPVS: ftp: loaded support on port[0] = 21 07:48:12 executing program 2: r0 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000040)='/dev/sequencer2\x00', 0x0, 0x0) ioctl$TCSETAF(r0, 0x5404, 0x0) ioctl$TCSETSW(r0, 0x5403, 0x0) ioctl$KDGKBLED(r0, 0x5404, 0x0) [ 66.692043][ T8494] chnl_net:caif_netlink_parms(): no params data found [ 66.804371][ T8496] chnl_net:caif_netlink_parms(): no params data found [ 66.822807][ T8494] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.830946][ T8494] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.838980][ T8494] device bridge_slave_0 entered promiscuous mode [ 66.851601][ T8494] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.858719][ T8494] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.870033][ T8494] device bridge_slave_1 entered promiscuous mode [ 66.896889][ T8494] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.922160][ T8494] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.958593][ T8496] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.971519][ T8496] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.979414][ T8496] device bridge_slave_0 entered promiscuous mode 07:48:12 executing program 3: r0 = socket$kcm(0xa, 0x5, 0x0) sendmsg$kcm(r0, &(0x7f0000000080)={&(0x7f0000000140)=@generic={0xa, "548c67ee731a5b6518a6da7905c9c1a7f099e05196b7a21c9f0b5f4a78e54be9900737da608f5a43b6085268568d0b8a23b836d9c169fce22046785c7c124a6a51cb2667c1c5b7b1e6e76156235ed40cd9ca5c9a0a0291f5070d64fcd550a4656abefa1c36be22fe12989dcddecdafc2307ec17e1b643724d3e8c24c2cbc"}, 0x80, &(0x7f0000000000)=[{&(0x7f0000000280)="a6", 0x1}], 0x1, &(0x7f0000000340)=[{0x10}, {0x20, 0x84, 0x8, "21f683fc4c823fe995"}], 0x30}, 0x78) [ 67.003368][ T8500] IPVS: ftp: loaded support on port[0] = 21 [ 67.011305][ T8496] bridge0: port 2(bridge_slave_1) entered blocking state [ 67.018698][ T8496] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.033182][ T8496] device bridge_slave_1 entered promiscuous mode [ 67.045104][ T8494] team0: Port device team_slave_0 added [ 67.075045][ T8494] team0: Port device team_slave_1 added [ 67.108426][ T8496] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.164632][ T8494] device hsr_slave_0 entered promiscuous mode [ 67.222498][ T8494] device hsr_slave_1 entered promiscuous mode 07:48:12 executing program 4: pipe(&(0x7f00000001c0)) r0 = bpf$MAP_CREATE(0x0, &(0x7f0000733000)={0x5, 0x5, 0x1007, 0x9}, 0x3c) r1 = socket$inet6_tcp(0xa, 0x1, 0x0) r2 = dup2(r1, r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) r3 = bpf$MAP_CREATE(0x0, &(0x7f00004f9fe4)={0xc, 0x4, 0x4, 0x1, 0x0, r0}, 0x3c) bpf$MAP_UPDATE_ELEM(0x2, &(0x7f0000000000)={r3, &(0x7f00000001c0), &(0x7f0000000080)}, 0x20) [ 67.265178][ T8496] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.308672][ T8502] IPVS: ftp: loaded support on port[0] = 21 [ 67.366601][ T8496] team0: Port device team_slave_0 added [ 67.393896][ T8496] team0: Port device team_slave_1 added 07:48:12 executing program 5: r0 = syz_open_dev$sndctrl(&(0x7f0000006000)='/dev/snd/controlC#\x00', 0x0, 0x0) ioctl$SNDRV_CTL_IOCTL_ELEM_ADD(r0, 0xc1105517, &(0x7f0000000080)={{0x0, 0x0, 0x0, 0x0, 'syz1\x00'}, 0x1, 0x0, 0x5, 0x0, 0x0, 0x0, 'syz1\x00', 0x0, 0x0, [], [0x5, 0x1]}) [ 67.572343][ T8496] device hsr_slave_0 entered promiscuous mode [ 67.629835][ T8496] device hsr_slave_1 entered promiscuous mode [ 67.679928][ T8496] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.687690][ T8496] Cannot create hsr debugfs directory [ 67.707742][ T8500] chnl_net:caif_netlink_parms(): no params data found [ 67.756130][ T8505] IPVS: ftp: loaded support on port[0] = 21 [ 67.779276][ T8507] IPVS: ftp: loaded support on port[0] = 21 [ 67.829671][ T8494] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.863589][ T8494] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.933536][ T8494] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.993994][ T8494] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.050892][ T8500] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.057973][ T8500] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.067129][ T8500] device bridge_slave_0 entered promiscuous mode [ 68.076906][ T8500] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.084045][ T8500] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.091892][ T8500] device bridge_slave_1 entered promiscuous mode [ 68.140235][ T8500] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.175206][ T8502] chnl_net:caif_netlink_parms(): no params data found [ 68.184782][ T8500] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.227096][ T8500] team0: Port device team_slave_0 added [ 68.266351][ T8500] team0: Port device team_slave_1 added [ 68.275481][ T8496] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 68.305438][ T8496] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 68.365641][ T8496] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 68.429695][ T8502] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.436772][ T8502] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.446251][ T8502] device bridge_slave_0 entered promiscuous mode [ 68.453532][ T8496] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 68.562414][ T8500] device hsr_slave_0 entered promiscuous mode [ 68.619916][ T8500] device hsr_slave_1 entered promiscuous mode [ 68.669769][ T8500] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.677344][ T8500] Cannot create hsr debugfs directory [ 68.684805][ T8507] chnl_net:caif_netlink_parms(): no params data found [ 68.697386][ T8502] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.705027][ T8502] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.712800][ T8502] device bridge_slave_1 entered promiscuous mode [ 68.734657][ T8502] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.785248][ T8502] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.838910][ T8494] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.862267][ T8507] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.869328][ T8507] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.877153][ T8507] device bridge_slave_0 entered promiscuous mode [ 68.885899][ T8502] team0: Port device team_slave_0 added [ 68.902270][ T8507] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.909342][ T8507] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.920666][ T8507] device bridge_slave_1 entered promiscuous mode [ 68.935430][ T8505] chnl_net:caif_netlink_parms(): no params data found [ 68.944004][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 68.952966][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 68.962331][ T8502] team0: Port device team_slave_1 added [ 68.969167][ T8494] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.007360][ T8507] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.021002][ T8507] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.036020][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.044685][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.053155][ T2992] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.060331][ T2992] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.073348][ T8500] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 69.132317][ T8500] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 69.194861][ T8500] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 69.255749][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.301334][ T8502] device hsr_slave_0 entered promiscuous mode [ 69.349885][ T8502] device hsr_slave_1 entered promiscuous mode [ 69.389747][ T8502] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.397367][ T8502] Cannot create hsr debugfs directory [ 69.427048][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.436580][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.445096][ T2946] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.452146][ T2946] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.463063][ T8500] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 69.516935][ T8507] team0: Port device team_slave_0 added [ 69.524831][ T8507] team0: Port device team_slave_1 added [ 69.535382][ T8505] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.543358][ T8505] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.552703][ T8505] device bridge_slave_0 entered promiscuous mode [ 69.583035][ T2944] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.612475][ T8505] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.620026][ T8505] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.627635][ T8505] device bridge_slave_1 entered promiscuous mode [ 69.638589][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.647861][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.656338][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.664846][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.679419][ T8496] 8021q: adding VLAN 0 to HW filter on device bond0 [ 69.711467][ T8505] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.731728][ T8496] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.750202][ T8505] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.774915][ T8507] device hsr_slave_0 entered promiscuous mode [ 69.831578][ T8507] device hsr_slave_1 entered promiscuous mode [ 69.869852][ T8507] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.877435][ T8507] Cannot create hsr debugfs directory [ 69.883911][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 69.894143][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 69.902605][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 69.911007][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 69.919321][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.927287][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.935111][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 69.943435][ T2685] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 69.954113][ T8494] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 69.990365][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.998933][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.007378][ T2946] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.014439][ T2946] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.023620][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.032200][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.040748][ T2946] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.047789][ T2946] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.055364][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.067118][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.087511][ T8502] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 70.137816][ T8502] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 70.176877][ T8505] team0: Port device team_slave_0 added [ 70.189495][ T8502] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 70.231942][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.240750][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.248123][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.265921][ T8494] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.277940][ T8505] team0: Port device team_slave_1 added [ 70.285102][ T8502] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 70.336635][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.346041][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.401695][ T8505] device hsr_slave_0 entered promiscuous mode [ 70.439990][ T8505] device hsr_slave_1 entered promiscuous mode [ 70.479704][ T8505] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.487288][ T8505] Cannot create hsr debugfs directory [ 70.523212][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.532032][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.540956][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.549389][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.558274][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.580477][ T8496] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 70.591719][ T8496] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.611926][ T2944] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.621343][ T2944] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.629447][ T2944] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 70.638571][ T2944] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 70.664174][ T8500] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.688481][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 70.698013][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 70.710912][ T8494] device veth0_vlan entered promiscuous mode [ 70.734003][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 70.741940][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 70.749686][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.757307][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.773332][ T8500] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.787410][ T8494] device veth1_vlan entered promiscuous mode [ 70.810232][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 70.818252][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 70.830153][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.839144][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.847952][ T2992] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.855251][ T2992] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.904972][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.917438][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.927165][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.937795][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.948381][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.956856][ T2946] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.963921][ T2946] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.971782][ T2946] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.988009][ T8496] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.009783][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 71.018343][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 71.027681][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 71.036151][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 71.044854][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 71.054489][ T2992] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 71.072774][ T8507] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 176.099525][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 176.106413][ C0] rcu: 0-...!: (10499 ticks this GP) idle=7da/1/0x4000000000000002 softirq=13958/13958 fqs=41 [ 176.117064][ C0] (t=10500 jiffies g=6477 q=95) [ 176.121991][ C0] rcu: rcu_preempt kthread starved for 10417 jiffies! g6477 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 176.133072][ C0] rcu: RCU grace-period kthread stack dump: [ 176.138947][ C0] rcu_preempt R running task 28984 10 2 0x80004008 [ 176.146835][ C0] Call Trace: [ 176.150119][ C0] __schedule+0x9a8/0xcc0 [ 176.154447][ C0] schedule+0x181/0x210 [ 176.158593][ C0] schedule_timeout+0x14f/0x240 [ 176.163435][ C0] ? run_local_timers+0x120/0x120 [ 176.168453][ C0] rcu_gp_kthread+0xed8/0x1770 [ 176.173217][ C0] kthread+0x332/0x350 [ 176.177268][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 176.182366][ C0] ? kthread_blkcg+0xe0/0xe0 [ 176.186944][ C0] ret_from_fork+0x24/0x30 [ 176.191359][ C0] NMI backtrace for cpu 0 [ 176.195677][ C0] CPU: 0 PID: 8463 Comm: udevd Not tainted 5.5.0-rc5-syzkaller #0 [ 176.203461][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 176.213515][ C0] Call Trace: [ 176.216783][ C0] [ 176.219624][ C0] dump_stack+0x1fb/0x318 [ 176.223944][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 176.228784][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 176.234929][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 176.240981][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 176.246957][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 176.252837][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 176.257943][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 176.263130][ C0] ? trace_hardirqs_off+0x74/0x80 [ 176.268142][ C0] update_process_times+0x12d/0x180 [ 176.273343][ C0] tick_sched_timer+0x263/0x420 [ 176.278179][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 176.283715][ C0] __hrtimer_run_queues+0x403/0x840 [ 176.288919][ C0] hrtimer_interrupt+0x38c/0xda0 [ 176.293856][ C0] ? debug_smp_processor_id+0x9/0x20 [ 176.299130][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 176.304663][ C0] apic_timer_interrupt+0xf/0x20 [ 176.309583][ C0] [ 176.312510][ C0] RIP: 0010:free_thread_stack+0x18b/0x590 [ 176.318216][ C0] Code: 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 e9 82 ff ff ff e8 be 2b 2e [ 176.337819][ C0] RSP: 0018:ffffc90001da7b10 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 176.346217][ C0] RAX: 1ffff1100d33ada1 RBX: ffff8880699d6d08 RCX: ffff888097ade580 [ 176.354175][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0001a676c0 [ 176.362136][ C0] RBP: ffffc90001da7b48 R08: 000000000003a728 R09: ffffed1013f006f1 [ 176.370104][ C0] R10: ffffed1013f006f1 R11: 0000000000000000 R12: ffff8880699d6da0 [ 176.378073][ C0] R13: dffffc0000000000 R14: 1ffff1100d33adb4 R15: ffff88809f803778 [ 176.386060][ C0] put_task_stack+0xa3/0x130 [ 176.390660][ C0] finish_task_switch+0x3f1/0x550 [ 176.395676][ C0] __schedule+0x9a8/0xcc0 [ 176.400004][ C0] schedule+0x181/0x210 [ 176.404152][ C0] schedule_hrtimeout_range_clock+0x3c7/0x510 [ 176.410211][ C0] ? trace_hrtimer_expire_exit+0x2d0/0x2d0 [ 176.416009][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 176.421372][ C0] ep_poll+0xa4d/0xe80 [ 176.425440][ C0] ? do_task_dead+0xc0/0xc0 [ 176.429931][ C0] ? __kasan_check_read+0x11/0x20 [ 176.434946][ C0] do_epoll_wait+0x1ee/0x260 [ 176.439529][ C0] __x64_sys_epoll_wait+0x9a/0xb0 [ 176.444547][ C0] do_syscall_64+0xf7/0x1c0 [ 176.449043][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 176.454944][ C0] RIP: 0033:0x7f67b3cc5943 [ 176.459379][ C0] Code: 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 83 3d b5 dc 2a 00 00 75 13 49 89 ca b8 e8 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 3b c4 00 00 48 89 04 24 [ 176.479098][ C0] RSP: 002b:00007ffe046a6aa8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 176.487504][ C0] RAX: ffffffffffffffda RBX: 0000000001a7e250 RCX: 00007f67b3cc5943 [ 176.495467][ C0] RDX: 0000000000000004 RSI: 00007ffe046a6b70 RDI: 0000000000000007 [ 176.503429][ C0] RBP: 0000000000625500 R08: 00007ffe046a6a90 R09: 00007ffe046e40b8 [ 176.511390][ C0] R10: 000000000000ee41 R11: 0000000000000246 R12: 0000000001a972e0 [ 176.519359][ C0] R13: 00007ffe046a7bc7 R14: 0000000000000005 R15: 0000000001a7e250