[ 42.780421][ T25] audit: type=1800 audit(1575389061.342:25): pid=8043 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 42.805833][ T25] audit: type=1800 audit(1575389061.342:26): pid=8043 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 42.858588][ T25] audit: type=1800 audit(1575389061.352:27): pid=8043 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 42.904560][ T25] audit: type=1800 audit(1575389061.352:28): pid=8043 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.54' (ECDSA) to the list of known hosts. 2019/12/03 16:04:31 fuzzer started 2019/12/03 16:04:33 dialing manager at 10.128.0.26:45711 2019/12/03 16:04:33 syscalls: 2689 2019/12/03 16:04:33 code coverage: enabled 2019/12/03 16:04:33 comparison tracing: enabled 2019/12/03 16:04:33 extra coverage: extra coverage is not supported by the kernel 2019/12/03 16:04:33 setuid sandbox: enabled 2019/12/03 16:04:33 namespace sandbox: enabled 2019/12/03 16:04:33 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/03 16:04:33 fault injection: enabled 2019/12/03 16:04:33 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/03 16:04:33 net packet injection: enabled 2019/12/03 16:04:33 net device setup: enabled 2019/12/03 16:04:33 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/03 16:04:33 devlink PCI setup: PCI device 0000:00:10.0 is not available 16:04:34 executing program 0: r0 = socket$key(0xf, 0x3, 0x2) sendmsg$key(0xffffffffffffffff, &(0x7f0000000180)={0x0, 0x0, &(0x7f0000000040)={0x0, 0xffffffffffffff44}}, 0x0) sendmsg$key(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000240)=ANY=[@ANYBLOB="020a000007000000000020000000854105001a000000000000d74619edc700000000000000000000000000000000000000000000000000204afc934b03a9061fe6604cd11839d217f702538150b4b4e6fe5a45ff159604f1d128b5d01f982050c552382c80195913711e5b8b41a5ab706883a8f411989e33c2b7363c9b266466da6b312b85120f39cd98a7b001e768817d1e3f52052ff51609ce969b24381bcdb2b98cf99f16ec1c928ce499052e26706f6b60a69f04fc6a889783f10280bd4369416ee68ba83e2f501fa0103597b382967eea1327f332c078eb408c10daa332d6c0ad437730d9d9df0acbfae0"], 0x38}}, 0x0) sendmsg$key(0xffffffffffffffff, &(0x7f00000001c0)={0x40000000, 0x0, &(0x7f0000000040)={&(0x7f0000000080)=ANY=[@ANYBLOB="020100090e000000030000000000000405000600000000000a0000000000000400000000000000000000002100000000000100000000000002000100010000000000000200fd000005000500000000000a004872bbb6896209000055781309e339be593f7710aa00007c201700410000"], 0x70}}, 0x0) sendmmsg(r0, &(0x7f0000000180), 0x3ef, 0x0) 16:04:34 executing program 1: r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000080)='/dev/net/tun\x00', 0x0, 0x0) ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f00000000c0)={'syzkaller1\x00', 0x420000015001}) ioctl$TUNGETFILTER(r0, 0x801054db, 0x0) syzkaller login: [ 55.592768][ T8207] IPVS: ftp: loaded support on port[0] = 21 [ 55.723157][ T8207] chnl_net:caif_netlink_parms(): no params data found [ 55.786013][ T8210] IPVS: ftp: loaded support on port[0] = 21 [ 55.818864][ T8207] bridge0: port 1(bridge_slave_0) entered blocking state [ 55.826632][ T8207] bridge0: port 1(bridge_slave_0) entered disabled state [ 55.834666][ T8207] device bridge_slave_0 entered promiscuous mode [ 55.849121][ T8207] bridge0: port 2(bridge_slave_1) entered blocking state [ 55.875621][ T8207] bridge0: port 2(bridge_slave_1) entered disabled state 16:04:34 executing program 2: socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) r1 = dup(r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$pppoe(0x18, 0x1, 0x0) connect$pppoe(r2, &(0x7f0000000000)={0x18, 0x0, {0x4, @dev={[], 0xa}, 'lo\x00'}}, 0x1e) setsockopt$sock_int(r2, 0x1, 0x21, &(0x7f0000000100), 0x4) sendmmsg(r2, &(0x7f0000004500), 0x40000000000033e, 0x0) [ 55.883277][ T8207] device bridge_slave_1 entered promiscuous mode [ 55.938685][ T8207] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 55.991546][ T8207] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.051113][ T8207] team0: Port device team_slave_0 added [ 56.059750][ T8207] team0: Port device team_slave_1 added [ 56.066538][ T8210] chnl_net:caif_netlink_parms(): no params data found [ 56.088999][ T8213] IPVS: ftp: loaded support on port[0] = 21 16:04:34 executing program 3: perf_event_open(0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_init_net_socket$bt_hci(0x1f, 0x3, 0x1) r1 = socket$inet_udplite(0x2, 0x2, 0x88) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000500)={'gre0\x00\x00\x00\x00\x00\x00\x00\b\x00', 0x0}) r3 = socket$inet_udplite(0x2, 0x2, 0x88) getsockopt$IPT_SO_GET_INFO(r3, 0x0, 0x40, &(0x7f0000000000)={'raw\x00'}, &(0x7f0000000080)=0x54) bind$bt_hci(r0, &(0x7f0000000040)={0x1f, r2}, 0xc) writev(r0, &(0x7f00000001c0)=[{&(0x7f00000000c0)="0300ffff", 0x6}], 0x2) [ 56.129174][ T8207] device hsr_slave_0 entered promiscuous mode [ 56.187288][ T8207] device hsr_slave_1 entered promiscuous mode [ 56.317733][ T8210] bridge0: port 1(bridge_slave_0) entered blocking state [ 56.324878][ T8210] bridge0: port 1(bridge_slave_0) entered disabled state [ 56.346574][ T8210] device bridge_slave_0 entered promiscuous mode [ 56.361627][ T8215] IPVS: ftp: loaded support on port[0] = 21 [ 56.381715][ T8210] bridge0: port 2(bridge_slave_1) entered blocking state [ 56.395642][ T8210] bridge0: port 2(bridge_slave_1) entered disabled state [ 56.418931][ T8210] device bridge_slave_1 entered promiscuous mode 16:04:35 executing program 4: r0 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000180)='/dev/kvm\x00', 0x0, 0x0) r1 = ioctl$KVM_CREATE_VM(r0, 0xae01, 0x0) r2 = ioctl$KVM_CREATE_VCPU(r1, 0xae41, 0x0) ioctl$KVM_SET_USER_MEMORY_REGION(r1, 0x4020ae46, &(0x7f0000000400)={0x0, 0x3, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) syz_kvm_setup_cpu$x86(r1, 0xffffffffffffffff, &(0x7f0000000000/0x18000)=nil, 0x0, 0xffffffffffffff93, 0x0, 0x0, 0x0) ioctl$KVM_REGISTER_COALESCED_MMIO(r1, 0x4010ae67, &(0x7f00000001c0)={0x0, 0x119000}) syz_kvm_setup_cpu$x86(0xffffffffffffffff, r2, &(0x7f0000000000/0x18000)=nil, 0x0, 0x0, 0x0, 0x0, 0x0) bind(0xffffffffffffffff, &(0x7f0000000080)=@generic={0x0, "0000010000000000080044944eeba71a4976e252922cb18f6e2e2aba000000012e0b3836005404b0e0301a4ce875f2e3ff5f163ee340b7679500800000000000000101013c5811039e15775027ecce66fd792bbf0e5bf5ff1b0816f3f6db1c00010000000000000049740000000000000006ad8e5ecc326d3a09ffc2c654"}, 0x80) statfs(&(0x7f0000000000)='./file0\x00', 0x0) ioctl$KVM_NMI(r2, 0xae9a) ioctl$KVM_RUN(r2, 0xae80, 0x0) [ 56.450705][ T8207] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 56.501058][ T8207] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 56.549095][ T8207] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 56.600617][ T8210] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 56.619428][ T8207] netdevsim netdevsim0 netdevsim3: renamed from eth3 16:04:35 executing program 5: creat(&(0x7f0000000000)='./file0\x00', 0x0) mount$9p_rdma(&(0x7f0000000040)='127.0.0.1\x00', &(0x7f0000000080)='./file0\x00', &(0x7f00000000c0)='9p\x00', 0x0, &(0x7f0000000200)={'trans=rdma,', {'port'}, 0x2c, {[{@common=@privport='privport'}]}}) [ 56.668092][ T8210] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 56.681883][ T8217] IPVS: ftp: loaded support on port[0] = 21 [ 56.751584][ T8210] team0: Port device team_slave_0 added [ 56.760005][ T8210] team0: Port device team_slave_1 added [ 56.867296][ T8210] device hsr_slave_0 entered promiscuous mode [ 56.906172][ T8210] device hsr_slave_1 entered promiscuous mode [ 56.965677][ T8210] debugfs: Directory 'hsr0' with parent '/' already present! [ 57.021714][ T8219] IPVS: ftp: loaded support on port[0] = 21 [ 57.079106][ T8213] chnl_net:caif_netlink_parms(): no params data found [ 57.088202][ T8210] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 57.137637][ T8217] chnl_net:caif_netlink_parms(): no params data found [ 57.170951][ T8210] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 57.231073][ T8210] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 57.279090][ T8210] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 57.333106][ T8215] chnl_net:caif_netlink_parms(): no params data found [ 57.381234][ T8217] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.388497][ T8217] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.396458][ T8217] device bridge_slave_0 entered promiscuous mode [ 57.431296][ T8217] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.438495][ T8217] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.447383][ T8217] device bridge_slave_1 entered promiscuous mode [ 57.479237][ T8213] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.487246][ T8213] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.494936][ T8213] device bridge_slave_0 entered promiscuous mode [ 57.503535][ T8213] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.511482][ T8213] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.519718][ T8213] device bridge_slave_1 entered promiscuous mode [ 57.534137][ T8217] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.543717][ T8215] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.550912][ T8215] bridge0: port 1(bridge_slave_0) entered disabled state [ 57.558579][ T8215] device bridge_slave_0 entered promiscuous mode [ 57.566356][ T8215] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.574358][ T8215] bridge0: port 2(bridge_slave_1) entered disabled state [ 57.582185][ T8215] device bridge_slave_1 entered promiscuous mode [ 57.599547][ T8217] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.630680][ T8213] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.645159][ T8213] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.656753][ T8215] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 57.684264][ T8207] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.703890][ T8215] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 57.735833][ T8217] team0: Port device team_slave_0 added [ 57.747776][ T8219] chnl_net:caif_netlink_parms(): no params data found [ 57.761529][ T8210] 8021q: adding VLAN 0 to HW filter on device bond0 [ 57.774221][ T8213] team0: Port device team_slave_0 added [ 57.781530][ T8217] team0: Port device team_slave_1 added [ 57.810593][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.819622][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.833155][ T8210] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.844366][ T8213] team0: Port device team_slave_1 added [ 57.861765][ T8215] team0: Port device team_slave_0 added [ 57.870319][ T2942] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.879814][ T2942] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.889191][ T8207] 8021q: adding VLAN 0 to HW filter on device team0 [ 57.912880][ T8215] team0: Port device team_slave_1 added [ 57.919404][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 57.928782][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 57.937495][ T12] bridge0: port 1(bridge_slave_0) entered blocking state [ 57.944618][ T12] bridge0: port 1(bridge_slave_0) entered forwarding state [ 57.952956][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 57.962517][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 57.970947][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 57.978048][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 57.986287][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.048338][ T8217] device hsr_slave_0 entered promiscuous mode [ 58.085878][ T8217] device hsr_slave_1 entered promiscuous mode [ 58.125849][ T8217] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.155775][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 58.164327][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 58.176656][ T8223] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.183720][ T8223] bridge0: port 1(bridge_slave_0) entered forwarding state [ 58.191896][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 58.206283][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.215301][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 58.224721][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 58.233789][ T12] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.240904][ T12] bridge0: port 2(bridge_slave_1) entered forwarding state [ 58.248610][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 58.257835][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.308491][ T8213] device hsr_slave_0 entered promiscuous mode [ 58.385852][ T8213] device hsr_slave_1 entered promiscuous mode [ 58.425644][ T8213] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.435884][ T8219] bridge0: port 1(bridge_slave_0) entered blocking state [ 58.443952][ T8219] bridge0: port 1(bridge_slave_0) entered disabled state [ 58.457053][ T8219] device bridge_slave_0 entered promiscuous mode [ 58.464692][ T8219] bridge0: port 2(bridge_slave_1) entered blocking state [ 58.472266][ T8219] bridge0: port 2(bridge_slave_1) entered disabled state [ 58.480445][ T8219] device bridge_slave_1 entered promiscuous mode [ 58.558325][ T8215] device hsr_slave_0 entered promiscuous mode [ 58.595917][ T8215] device hsr_slave_1 entered promiscuous mode [ 58.635788][ T8215] debugfs: Directory 'hsr0' with parent '/' already present! [ 58.665708][ T8219] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 58.676247][ T8213] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 58.720036][ T8213] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 58.781001][ T8213] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 58.834825][ T8213] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 58.889504][ T8219] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 58.906220][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.914659][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.923226][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 58.931873][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 58.940485][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 58.948880][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.957043][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 58.984663][ T8219] team0: Port device team_slave_0 added [ 58.991701][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.000660][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.009283][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.017754][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.036840][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 59.051466][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 59.062901][ T8219] team0: Port device team_slave_1 added [ 59.084754][ T8217] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 59.150631][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.159413][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.173019][ T8210] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.217849][ T8219] device hsr_slave_0 entered promiscuous mode [ 59.245946][ T8219] device hsr_slave_1 entered promiscuous mode [ 59.287023][ T8219] debugfs: Directory 'hsr0' with parent '/' already present! [ 59.310780][ T8215] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 59.347636][ T8217] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 59.397705][ T8217] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 59.447642][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 59.456343][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 59.490162][ T8215] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 59.557717][ T8215] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 59.627511][ T8215] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 59.677421][ T8217] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 59.724277][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 59.731871][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 59.748766][ T8207] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 59.762502][ T8207] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 59.779314][ T8210] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 59.796134][ T8219] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 59.827826][ T8219] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 59.869890][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 59.878204][ T8223] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 59.903374][ T8213] 8021q: adding VLAN 0 to HW filter on device bond0 [ 59.912042][ T8219] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 59.958482][ T8219] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 60.034624][ T8207] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.043523][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.051295][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.121443][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.130685][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.149770][ T8213] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.194283][ T8215] 8021q: adding VLAN 0 to HW filter on device bond0 [ 60.221172][ T8215] 8021q: adding VLAN 0 to HW filter on device team0 [ 60.270345][ T8215] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 60.283035][ T8215] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 60.322552][ T8215] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 60.381685][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 60.404937][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 60.430665][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.451926][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.464940][ T3885] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.472137][ T3885] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.486385][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.495233][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.510105][ T3885] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.517284][ T3885] bridge0: port 2(bridge_slave_1) entered forwarding state [ 60.531452][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 60.540988][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 60.556232][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 60.565233][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 60.580248][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 60.591874][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 60.604707][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 60.619577][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 60.630178][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 60.643326][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 60.654075][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 60.667865][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 60.679633][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 60.690301][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 60.702843][ T3885] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.710030][ T3885] bridge0: port 1(bridge_slave_0) entered forwarding state [ 60.723600][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 60.732516][ T3885] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 60.747275][ T3885] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.754465][ T3885] bridge0: port 2(bridge_slave_1) entered forwarding state [ 165.125497][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 165.132407][ C0] rcu: 0-...!: (10499 ticks this GP) idle=996/1/0x4000000000000002 softirq=10684/10693 fqs=147 [ 165.143160][ C0] (t=10501 jiffies g=6285 q=810) [ 165.148254][ C0] rcu: rcu_preempt kthread starved for 10207 jiffies! g6285 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 165.159536][ C0] rcu: RCU grace-period kthread stack dump: [ 165.165415][ C0] rcu_preempt I28992 10 2 0x80004000 [ 165.171875][ C0] Call Trace: [ 165.175182][ C0] __schedule+0x9a0/0xcc0 [ 165.179532][ C0] schedule+0x181/0x210 [ 165.183692][ C0] schedule_timeout+0x14f/0x240 [ 165.188567][ C0] ? run_local_timers+0x120/0x120 [ 165.193611][ C0] rcu_gp_kthread+0xed8/0x1770 [ 165.198397][ C0] kthread+0x332/0x350 [ 165.202481][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 165.207596][ C0] ? kthread_blkcg+0xe0/0xe0 [ 165.212184][ C0] ret_from_fork+0x24/0x30 [ 165.216632][ C0] NMI backtrace for cpu 0 [ 165.220952][ C0] CPU: 0 PID: 4081 Comm: udevd Not tainted 5.4.0-syzkaller #0 [ 165.228531][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 165.238596][ C0] Call Trace: [ 165.241877][ C0] [ 165.244844][ C0] dump_stack+0x1fb/0x318 [ 165.249184][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 165.254045][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 165.260216][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 165.266291][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 165.272310][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 165.278218][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 165.283338][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 165.288553][ C0] ? trace_hardirqs_off+0x74/0x80 [ 165.293586][ C0] update_process_times+0x12d/0x180 [ 165.302980][ C0] tick_sched_timer+0x263/0x420 [ 165.307854][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 165.313394][ C0] __hrtimer_run_queues+0x403/0x840 [ 165.318751][ C0] hrtimer_interrupt+0x38c/0xda0 [ 165.323740][ C0] ? debug_smp_processor_id+0x9/0x20 [ 165.329029][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 165.334610][ C0] apic_timer_interrupt+0xf/0x20 [ 165.339570][ C0] [ 165.342517][ C0] RIP: 0010:__memcg_kmem_uncharge+0x219/0x2e0 [ 165.348577][ C0] Code: 4b 0d 89 e8 59 97 00 00 bf 01 00 00 00 e8 2f e3 9b ff 65 8b 05 d4 fd 4a 7e 85 c0 74 53 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f <5d> c3 49 8d 5f 10 48 89 df be 08 00 00 00 e8 04 c1 fa ff 48 8b 45 [ 165.368170][ C0] RSP: 0018:ffffc900015b7b00 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 165.376565][ C0] RAX: 0000000000000001 RBX: ffffea000260a400 RCX: 0000000000000000 [ 165.384525][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffea000260a400 [ 165.392483][ C0] RBP: ffffc900015b7b00 R08: 000000000003a768 R09: ffffed1011b72aaf [ 165.400453][ C0] R10: ffffed1011b72aaf R11: 0000000000000000 R12: ffff8880914fa4a0 [ 165.408412][ C0] R13: dffffc0000000000 R14: 1ffff1101229f494 R15: ffff88808db95568 [ 165.416405][ C0] free_thread_stack+0x12e/0x590 [ 165.421948][ C0] put_task_stack+0xa3/0x130 [ 165.426530][ C0] finish_task_switch+0x3f1/0x550 [ 165.431551][ C0] __schedule+0x9a8/0xcc0 [ 165.435876][ C0] schedule+0x181/0x210 [ 165.440026][ C0] schedule_hrtimeout_range_clock+0x108/0x510 [ 165.446082][ C0] ? _raw_spin_unlock_irq+0x22/0x80 [ 165.451269][ C0] schedule_hrtimeout_range+0x2a/0x40 [ 165.456632][ C0] ep_poll+0xa4d/0xe80 [ 165.460708][ C0] ? debug_smp_processor_id+0x1c/0x20 [ 165.466064][ C0] ? do_task_dead+0xc0/0xc0 [ 165.470560][ C0] do_epoll_wait+0x1ee/0x260 [ 165.475139][ C0] __x64_sys_epoll_wait+0x9a/0xb0 [ 165.480152][ C0] do_syscall_64+0xf7/0x1c0 [ 165.484646][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 165.490521][ C0] RIP: 0033:0x7f915940f943 [ 165.494939][ 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 [ 165.514527][ C0] RSP: 002b:00007fffe4e41ed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e8 [ 165.522937][ C0] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 00007f915940f943 [ 165.530895][ C0] RDX: 0000000000000008 RSI: 00007fffe4e41fd0 RDI: 000000000000000a [ 165.538938][ C0] RBP: 0000000000000000 R08: 000000000073b0d0 R09: 00007f91594591d0 [ 165.546896][ C0] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000003 [ 165.554853][ C0] R13: 0000000000000010 R14: 000000000073b4f0 R15: 000000000073b250