[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 52.449869][ T26] audit: type=1800 audit(1578463565.715:25): pid=8550 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 52.469810][ T26] audit: type=1800 audit(1578463565.725:26): pid=8550 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 52.520709][ T26] audit: type=1800 audit(1578463565.725:27): pid=8550 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 '10.128.0.219' (ECDSA) to the list of known hosts. 2020/01/08 06:06:16 fuzzer started 2020/01/08 06:06:18 dialing manager at 10.128.0.26:35703 2020/01/08 06:06:18 syscalls: 2824 2020/01/08 06:06:18 code coverage: enabled 2020/01/08 06:06:18 comparison tracing: enabled 2020/01/08 06:06:18 extra coverage: enabled 2020/01/08 06:06:18 setuid sandbox: enabled 2020/01/08 06:06:18 namespace sandbox: enabled 2020/01/08 06:06:18 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 06:06:18 fault injection: enabled 2020/01/08 06:06:18 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 06:06:18 net packet injection: enabled 2020/01/08 06:06:18 net device setup: enabled 2020/01/08 06:06:18 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 06:06:18 devlink PCI setup: PCI device 0000:00:10.0 is not available 06:06:19 executing program 0: bpf$PROG_LOAD(0x5, &(0x7f0000000140)={0x1a, 0x1, &(0x7f0000000200)=@raw=[@ldst], &(0x7f0000000040)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0}, 0x78) 06:06:19 executing program 1: r0 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000080)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000140)=@ipv4_delrule={0x28, 0x21, 0xc3f1e37680c01d7, 0x0, 0x0, {0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, [@FRA_GENERIC_POLICY=@FRA_SUPPRESS_IFGROUP={0x8, 0xd, 0x4207}]}, 0x28}}, 0x0) syzkaller login: [ 66.285006][ T8717] IPVS: ftp: loaded support on port[0] = 21 [ 66.483238][ T8720] IPVS: ftp: loaded support on port[0] = 21 [ 66.499112][ T8717] chnl_net:caif_netlink_parms(): no params data found 06:06:19 executing program 2: r0 = openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000000)='memory.events\x00', 0x26e1, 0x0) ioctl$FS_IOC_FSSETXATTR(r0, 0x40086602, &(0x7f0000000140)) write$cgroup_int(r0, &(0x7f0000000080), 0x87f1a7) ioctl$FS_IOC_FIEMAP(r0, 0xc020660b, &(0x7f0000000200)={0x0, 0x5f70b710}) r1 = gettid() timer_create(0x0, &(0x7f0000000040)={0x0, 0x12, 0x0, @thr={0x0, 0x0}}, &(0x7f0000044000)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) tkill(r1, 0x1000000000013) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = dup(r2) ioctl$PERF_EVENT_IOC_ENABLE(r3, 0x8912, 0x400200) [ 66.624182][ T8717] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.631485][ T8717] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.656614][ T8717] device bridge_slave_0 entered promiscuous mode [ 66.700339][ T8717] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.723337][ T8717] bridge0: port 2(bridge_slave_1) entered disabled state [ 66.731508][ T8717] device bridge_slave_1 entered promiscuous mode [ 66.767333][ T8720] chnl_net:caif_netlink_parms(): no params data found [ 66.796531][ T8717] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 66.808722][ T8723] IPVS: ftp: loaded support on port[0] = 21 [ 66.841179][ T8717] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 66.871259][ T8717] team0: Port device team_slave_0 added 06:06:20 executing program 3: perf_event_open(&(0x7f0000000240)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bpf$BPF_BTF_LOAD(0x12, &(0x7f0000001740)={&(0x7f00000006c0)={{0xeb9f, 0x1, 0x0, 0x18, 0x0, 0xc, 0xc, 0x3, [@func]}, {0x0, [0x0]}}, &(0x7f0000000740)=""/4096, 0x27, 0x1000, 0x1}, 0x20) ioctl$PERF_EVENT_IOC_ENABLE(0xffffffffffffffff, 0x8912, 0x0) [ 66.896687][ T8717] team0: Port device team_slave_1 added [ 66.910786][ T8720] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.926885][ T8720] bridge0: port 1(bridge_slave_0) entered disabled state [ 66.954092][ T8720] device bridge_slave_0 entered promiscuous mode [ 66.974922][ T8720] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.982371][ T8720] bridge0: port 2(bridge_slave_1) entered disabled state [ 67.004393][ T8720] device bridge_slave_1 entered promiscuous mode 06:06:20 executing program 4: r0 = socket$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) [ 67.146641][ T8717] device hsr_slave_0 entered promiscuous mode [ 67.213866][ T8717] device hsr_slave_1 entered promiscuous mode [ 67.275669][ T8720] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 67.322691][ T8725] IPVS: ftp: loaded support on port[0] = 21 [ 67.330389][ T8720] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 67.409955][ T8720] team0: Port device team_slave_0 added [ 67.421274][ T8720] team0: Port device team_slave_1 added 06:06:20 executing program 5: r0 = socket(0x4000000000000010, 0x3, 0x0) write(r0, &(0x7f0000000280)="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", 0xfc) [ 67.491851][ T8727] IPVS: ftp: loaded support on port[0] = 21 [ 67.597228][ T8723] chnl_net:caif_netlink_parms(): no params data found [ 67.609777][ T8717] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 67.725831][ T8720] device hsr_slave_0 entered promiscuous mode [ 67.793578][ T8720] device hsr_slave_1 entered promiscuous mode [ 67.853358][ T8720] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 67.861116][ T8720] Cannot create hsr debugfs directory [ 67.885270][ T8717] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 67.953015][ T8717] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 67.987255][ T8717] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 68.060545][ T8730] IPVS: ftp: loaded support on port[0] = 21 [ 68.106610][ T8723] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.113836][ T8723] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.121617][ T8723] device bridge_slave_0 entered promiscuous mode [ 68.131476][ T8723] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.139211][ T8723] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.148162][ T8723] device bridge_slave_1 entered promiscuous mode [ 68.230966][ T8725] chnl_net:caif_netlink_parms(): no params data found [ 68.252611][ T8723] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.284651][ T8723] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 68.341704][ T8720] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 68.398725][ T8723] team0: Port device team_slave_0 added [ 68.426890][ T8720] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 68.466041][ T8720] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 68.525988][ T8720] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 68.596747][ T8723] team0: Port device team_slave_1 added [ 68.614676][ T8727] chnl_net:caif_netlink_parms(): no params data found [ 68.640679][ T8725] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.648107][ T8725] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.656160][ T8725] device bridge_slave_0 entered promiscuous mode [ 68.677997][ T8725] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.685123][ T8725] bridge0: port 2(bridge_slave_1) entered disabled state [ 68.692779][ T8725] device bridge_slave_1 entered promiscuous mode [ 68.765690][ T8723] device hsr_slave_0 entered promiscuous mode [ 68.813718][ T8723] device hsr_slave_1 entered promiscuous mode [ 68.853377][ T8723] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 68.860975][ T8723] Cannot create hsr debugfs directory [ 68.889734][ T8717] 8021q: adding VLAN 0 to HW filter on device bond0 [ 68.940299][ T8727] bridge0: port 1(bridge_slave_0) entered blocking state [ 68.949029][ T8727] bridge0: port 1(bridge_slave_0) entered disabled state [ 68.957100][ T8727] device bridge_slave_0 entered promiscuous mode [ 68.966583][ T8725] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 68.987940][ T8727] bridge0: port 2(bridge_slave_1) entered blocking state [ 68.997139][ T8727] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.005981][ T8727] device bridge_slave_1 entered promiscuous mode [ 69.029100][ T8725] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.052187][ T8725] team0: Port device team_slave_0 added [ 69.065186][ T8730] chnl_net:caif_netlink_parms(): no params data found [ 69.077596][ T8727] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.089271][ T8727] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.105544][ T8725] team0: Port device team_slave_1 added [ 69.130502][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 69.140073][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.152360][ T8717] 8021q: adding VLAN 0 to HW filter on device team0 [ 69.215731][ T8725] device hsr_slave_0 entered promiscuous mode [ 69.274342][ T8725] device hsr_slave_1 entered promiscuous mode [ 69.323424][ T8725] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.331255][ T8725] Cannot create hsr debugfs directory [ 69.351517][ T8727] team0: Port device team_slave_0 added [ 69.364855][ T8727] team0: Port device team_slave_1 added [ 69.377995][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 69.387136][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 69.396845][ T2766] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.404044][ T2766] bridge0: port 1(bridge_slave_0) entered forwarding state [ 69.442131][ T8730] bridge0: port 1(bridge_slave_0) entered blocking state [ 69.449700][ T8730] bridge0: port 1(bridge_slave_0) entered disabled state [ 69.457933][ T8730] device bridge_slave_0 entered promiscuous mode [ 69.481045][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 69.489123][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 69.498467][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 69.507624][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.514719][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 69.536355][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 69.545269][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 69.554830][ T8730] bridge0: port 2(bridge_slave_1) entered blocking state [ 69.561993][ T8730] bridge0: port 2(bridge_slave_1) entered disabled state [ 69.571074][ T8730] device bridge_slave_1 entered promiscuous mode [ 69.635732][ T8727] device hsr_slave_0 entered promiscuous mode [ 69.683756][ T8727] device hsr_slave_1 entered promiscuous mode [ 69.723419][ T8727] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 69.731034][ T8727] Cannot create hsr debugfs directory [ 69.752358][ T8730] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 69.768586][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 69.779652][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 69.788667][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 69.802432][ T8723] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 69.847811][ T8730] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 69.871921][ T8723] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 69.925859][ T8723] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 69.966781][ T8723] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 70.027999][ T8730] team0: Port device team_slave_0 added [ 70.037555][ T8720] 8021q: adding VLAN 0 to HW filter on device bond0 [ 70.061123][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.070598][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.080746][ T8730] team0: Port device team_slave_1 added [ 70.106718][ T8720] 8021q: adding VLAN 0 to HW filter on device team0 [ 70.121987][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 70.133064][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 70.142846][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 70.151322][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 70.215226][ T8730] device hsr_slave_0 entered promiscuous mode [ 70.273609][ T8730] device hsr_slave_1 entered promiscuous mode [ 70.323435][ T8730] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 70.331304][ T8730] Cannot create hsr debugfs directory [ 70.342752][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 70.351771][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 70.382234][ T8717] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 70.399353][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 70.408677][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 70.417850][ T3476] bridge0: port 1(bridge_slave_0) entered blocking state [ 70.424997][ T3476] bridge0: port 1(bridge_slave_0) entered forwarding state [ 70.432806][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 70.441908][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 70.450803][ T3476] bridge0: port 2(bridge_slave_1) entered blocking state [ 70.458237][ T3476] bridge0: port 2(bridge_slave_1) entered forwarding state [ 70.465893][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 70.474985][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 70.517684][ T3471] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 70.535155][ T8725] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 70.598411][ T8725] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 70.675230][ T8725] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 70.771093][ T8725] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 70.843925][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 70.851500][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 70.869333][ T8727] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 70.902958][ T8717] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 70.914198][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 70.922841][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 70.932099][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 70.940951][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 70.949950][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 70.959145][ T8727] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 71.039927][ T8720] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 71.051079][ T8720] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 71.067816][ T8727] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 71.114964][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 71.127417][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 71.135873][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 71.144700][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 71.153963][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 71.198874][ T8727] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 71.225898][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 71.233752][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 71.274790][ T8720] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 71.296149][ T8730] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 71.374183][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.385255][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.394712][ T8730] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 71.415855][ T8730] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 71.458550][ T8730] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 71.531413][ T8723] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.542414][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 71.551558][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 71.570878][ T8717] device veth0_vlan entered promiscuous mode [ 71.585873][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.596555][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.614927][ T8717] device veth1_vlan entered promiscuous mode [ 71.630949][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.639812][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.648004][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 71.656558][ T3476] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 71.670893][ T8720] device veth0_vlan entered promiscuous mode [ 71.687745][ T8723] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.705489][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 71.715084][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 71.742302][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.751722][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.762425][ T8725] 8021q: adding VLAN 0 to HW filter on device bond0 [ 71.781283][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 71.790707][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 71.798745][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.809152][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 71.820381][ T2669] bridge0: port 1(bridge_slave_0) entered blocking state [ 71.827498][ T2669] bridge0: port 1(bridge_slave_0) entered forwarding state [ 71.835708][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 71.845282][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 71.853664][ T2669] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 71.884653][ T8725] 8021q: adding VLAN 0 to HW filter on device team0 [ 71.892931][ T8720] device veth1_vlan entered promiscuous mode [ 71.925010][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.937692][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 71.947367][ T2766] bridge0: port 2(bridge_slave_1) entered blocking state [ 71.954646][ T2766] bridge0: port 2(bridge_slave_1) entered forwarding state [ 71.965984][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 71.974862][ T2766] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 72.028114][ T8730] 8021q: adding VLAN 0 to HW filter on device bond0 [ 72.059820][ T8730] 8021q: adding VLAN 0 to HW filter on device team0 [ 177.103144][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 177.110258][ C0] rcu: 0-...!: (1 GPs behind) idle=c3e/1/0x4000000000000002 softirq=13656/13658 fqs=1 [ 177.120539][ C0] (t=10501 jiffies g=7649 q=345) [ 177.125578][ C0] rcu: rcu_preempt kthread starved for 10500 jiffies! g7649 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 177.136795][ C0] rcu: RCU grace-period kthread stack dump: [ 177.142712][ C0] rcu_preempt R running task 28984 10 2 0x80004000 [ 177.150642][ C0] Call Trace: [ 177.158728][ C0] __schedule+0x9a0/0xcc0 [ 177.163096][ C0] schedule+0x181/0x210 [ 177.167280][ C0] schedule_timeout+0x14f/0x240 [ 177.172159][ C0] ? run_local_timers+0x120/0x120 [ 177.177210][ C0] rcu_gp_kthread+0xed8/0x1770 [ 177.182079][ C0] kthread+0x332/0x350 [ 177.186178][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 177.191306][ C0] ? kthread_blkcg+0xe0/0xe0 [ 177.195899][ C0] ret_from_fork+0x24/0x30 [ 177.200329][ C0] NMI backtrace for cpu 0 [ 177.204918][ C0] CPU: 0 PID: 8737 Comm: syz-executor.0 Not tainted 5.5.0-rc5-syzkaller #0 [ 177.213673][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 177.223740][ C0] Call Trace: [ 177.227144][ C0] [ 177.230005][ C0] dump_stack+0x1fb/0x318 [ 177.234362][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 177.239319][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 177.245589][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 177.251688][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 177.257815][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 177.263719][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 177.268834][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 177.274075][ C0] ? trace_hardirqs_off+0x74/0x80 [ 177.279119][ C0] update_process_times+0x12d/0x180 [ 177.284346][ C0] tick_sched_timer+0x263/0x420 [ 177.289251][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 177.294823][ C0] __hrtimer_run_queues+0x403/0x840 [ 177.300054][ C0] hrtimer_interrupt+0x38c/0xda0 [ 177.305159][ C0] ? debug_smp_processor_id+0x9/0x20 [ 177.310473][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 177.316051][ C0] apic_timer_interrupt+0xf/0x20 [ 177.321036][ C0] [ 177.324042][ C0] RIP: 0010:free_thread_stack+0x151/0x590 [ 177.329975][ C0] Code: 31 f6 e8 02 8d 6f 00 43 80 3c 2e 00 74 08 4c 89 e7 e8 73 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 55 94 6a 00 48 8b 3b be fc ff ff ff e8 28 04 00 [ 177.349625][ C0] RSP: 0018:ffffc90002327848 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 177.358054][ C0] RAX: 1ffff11012be4471 RBX: ffff888095f22388 RCX: 0000000000000000 [ 177.366028][ C0] RDX: ffffc90001dd9000 RSI: 0000000000000000 RDI: ffffea00027069c0 [ 177.373996][ C0] RBP: ffffc90002327880 R08: dffffc0000000000 R09: fffffbfff12c962d [ 177.381960][ C0] R10: fffffbfff12c962d R11: 0000000000000000 R12: ffff888095f22420 [ 177.389922][ C0] R13: dffffc0000000000 R14: 1ffff11012be4484 R15: ffff88809558d478 [ 177.397917][ C0] ? free_thread_stack+0x12e/0x590 [ 177.403025][ C0] put_task_stack+0xa3/0x130 [ 177.407616][ C0] finish_task_switch+0x3f1/0x550 [ 177.412638][ C0] __schedule+0x9a8/0xcc0 [ 177.416965][ C0] ? do_raw_spin_unlock+0x142/0x950 [ 177.422184][ C0] schedule+0x181/0x210 [ 177.426338][ C0] futex_wait_queue_me+0x2a3/0x4b0 [ 177.431465][ C0] futex_wait+0x252/0x770 [ 177.435834][ C0] do_futex+0x437/0x3d60 [ 177.440075][ C0] ? __lock_acquire+0xc75/0x1be0 [ 177.445019][ C0] ? check_preemption_disabled+0x44/0x260 [ 177.450727][ C0] ? debug_smp_processor_id+0x9/0x20 [ 177.456019][ C0] ? __might_fault+0xf9/0x160 [ 177.460694][ C0] ? __might_fault+0xf9/0x160 [ 177.465513][ C0] ? check_preemption_disabled+0xb4/0x260 [ 177.471305][ C0] ? debug_smp_processor_id+0x9/0x20 [ 177.476621][ C0] __se_sys_futex+0x28c/0x360 [ 177.481344][ C0] ? prepare_exit_to_usermode+0x221/0x5b0 [ 177.487073][ C0] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 177.492833][ C0] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 177.498307][ C0] __x64_sys_futex+0xe5/0x100 [ 177.503074][ C0] do_syscall_64+0xf7/0x1c0 [ 177.507580][ C0] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 177.513772][ C0] RIP: 0033:0x45af49 [ 177.517763][ C0] Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 177.537502][ C0] RSP: 002b:00007fea470abcf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 177.545925][ C0] RAX: ffffffffffffffda RBX: 000000000075bf28 RCX: 000000000045af49 [ 177.553910][ C0] RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000075bf28 [ 177.561905][ C0] RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 [ 177.569892][ C0] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf2c [ 177.577889][ C0] R13: 00007ffdd35b8aff R14: 00007fea470ac9c0 R15: 000000000075bf2c