[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 44.359616][ T25] audit: type=1800 audit(1575454724.947:25): pid=8159 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 44.386683][ T25] audit: type=1800 audit(1575454724.947:26): pid=8159 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 44.425267][ T25] audit: type=1800 audit(1575454724.947:27): pid=8159 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 '10.128.15.228' (ECDSA) to the list of known hosts. 2019/12/04 10:18:56 fuzzer started 2019/12/04 10:18:58 dialing manager at 10.128.0.26:36481 2019/12/04 10:18:58 syscalls: 2691 2019/12/04 10:18:58 code coverage: enabled 2019/12/04 10:18:58 comparison tracing: enabled 2019/12/04 10:18:58 extra coverage: extra coverage is not supported by the kernel 2019/12/04 10:18:58 setuid sandbox: enabled 2019/12/04 10:18:58 namespace sandbox: enabled 2019/12/04 10:18:58 Android sandbox: /sys/fs/selinux/policy does not exist 2019/12/04 10:18:58 fault injection: enabled 2019/12/04 10:18:58 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/12/04 10:18:58 net packet injection: enabled 2019/12/04 10:18:58 net device setup: enabled 2019/12/04 10:18:58 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2019/12/04 10:18:58 devlink PCI setup: PCI device 0000:00:10.0 is not available 10:18:59 executing program 0: r0 = inotify_init1(0x0) r1 = syz_open_dev$sg(&(0x7f0000000200)='/dev/sg#\x00', 0x0, 0x163882) dup3(r0, r1, 0x0) 10:18:59 executing program 1: r0 = socket$nl_generic(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000040)={&(0x7f0000000080)={0x1c, 0x2f, 0x3ff, 0x0, 0x0, {0xe}, [@typed={0x8, 0x3, @str='\x1c'}]}, 0x1c}}, 0x0) syzkaller login: [ 58.990158][ T8321] IPVS: ftp: loaded support on port[0] = 21 [ 59.121142][ T8323] IPVS: ftp: loaded support on port[0] = 21 10:18:59 executing program 2: r0 = perf_event_open(&(0x7f0000000140)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000fff000/0x1000)=nil, 0x1000, 0x0, 0x11, r0, 0x0) remap_file_pages(&(0x7f0000fff000/0x1000)=nil, 0x1000, 0x0, 0x20000000000000, 0x0) [ 59.189245][ T8321] chnl_net:caif_netlink_parms(): no params data found [ 59.308507][ T8321] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.326422][ T8321] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.334906][ T8321] device bridge_slave_0 entered promiscuous mode [ 59.374110][ T8321] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.383141][ T8321] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.391594][ T8321] device bridge_slave_1 entered promiscuous mode [ 59.405044][ T8323] chnl_net:caif_netlink_parms(): no params data found [ 59.454207][ T8321] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.481434][ T8321] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link 10:19:00 executing program 3: perf_event_open(&(0x7f0000000040)={0x2, 0x70, 0xeb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={0x0}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) creat(&(0x7f0000000280)='./file0\x00', 0x0) r0 = creat(&(0x7f0000000280)='./file0\x00', 0x0) write$binfmt_elf32(r0, &(0x7f0000000000)=ANY=[@ANYBLOB="7f"], 0x1) close(r0) [ 59.500234][ T8323] bridge0: port 1(bridge_slave_0) entered blocking state [ 59.508555][ T8323] bridge0: port 1(bridge_slave_0) entered disabled state [ 59.519094][ T8323] device bridge_slave_0 entered promiscuous mode [ 59.528138][ T8323] bridge0: port 2(bridge_slave_1) entered blocking state [ 59.535202][ T8323] bridge0: port 2(bridge_slave_1) entered disabled state [ 59.547871][ T8323] device bridge_slave_1 entered promiscuous mode [ 59.564062][ T8321] team0: Port device team_slave_0 added [ 59.579130][ T8327] IPVS: ftp: loaded support on port[0] = 21 [ 59.595851][ T8321] team0: Port device team_slave_1 added [ 59.609359][ T8323] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 59.642440][ T8323] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 59.741071][ T8321] device hsr_slave_0 entered promiscuous mode 10:19:00 executing program 4: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) r1 = fcntl$dupfd(r0, 0x0, r0) ioctl$PERF_EVENT_IOC_ENABLE(r1, 0x8912, 0x400200) r2 = socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$tipc2(&(0x7f0000000080)='TIPCv2\x00') sendmsg$TIPC_NL_MON_SET(r2, &(0x7f0000000280)={0x0, 0x0, &(0x7f0000000240)={&(0x7f00000000c0)={0x14, r3, 0x1}, 0x14}}, 0x0) [ 59.796787][ T8321] device hsr_slave_1 entered promiscuous mode [ 59.880457][ T8329] IPVS: ftp: loaded support on port[0] = 21 [ 59.903756][ T8323] team0: Port device team_slave_0 added [ 59.935264][ T8323] team0: Port device team_slave_1 added 10:19:00 executing program 5: r0 = socket$netlink(0x10, 0x3, 0x0) r1 = socket$inet_icmp_raw(0x2, 0x3, 0x1) r2 = dup(r1) ioctl$PERF_EVENT_IOC_ENABLE(r2, 0x8912, 0x400200) sendmsg$nl_route(r0, &(0x7f0000003740)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000380)=@newlink={0x44, 0x10, 0x705, 0x0, 0x0, {}, [@IFLA_LINKINFO={0x24, 0x12, @bond={{0xc, 0x1, 'bond\x00'}, {0x14, 0x2, [@IFLA_BOND_ARP_IP_TARGET={0x10, 0x8, [@rand_addr=0x8000003, @loopback, @multicast1]}]}}}]}, 0x44}}, 0x0) [ 60.078962][ T8323] device hsr_slave_0 entered promiscuous mode [ 60.126820][ T8323] device hsr_slave_1 entered promiscuous mode [ 60.176538][ T8323] debugfs: Directory 'hsr0' with parent '/' already present! [ 60.198087][ T8321] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 60.228695][ T8321] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 60.279795][ T8321] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 60.355424][ T8333] IPVS: ftp: loaded support on port[0] = 21 [ 60.382753][ T8321] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 60.437865][ T8331] IPVS: ftp: loaded support on port[0] = 21 [ 60.502921][ T8323] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 60.550076][ T8323] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 60.619776][ T8323] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 60.667925][ T8327] chnl_net:caif_netlink_parms(): no params data found [ 60.700195][ T8329] chnl_net:caif_netlink_parms(): no params data found [ 60.709184][ T8323] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 60.860352][ T8327] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.869366][ T8327] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.877361][ T8327] device bridge_slave_0 entered promiscuous mode [ 60.885077][ T8327] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.892263][ T8327] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.900518][ T8327] device bridge_slave_1 entered promiscuous mode [ 60.922110][ T8327] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 60.933285][ T8327] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 60.943084][ T8329] bridge0: port 1(bridge_slave_0) entered blocking state [ 60.950279][ T8329] bridge0: port 1(bridge_slave_0) entered disabled state [ 60.958157][ T8329] device bridge_slave_0 entered promiscuous mode [ 60.967067][ T8329] bridge0: port 2(bridge_slave_1) entered blocking state [ 60.974158][ T8329] bridge0: port 2(bridge_slave_1) entered disabled state [ 60.982607][ T8329] device bridge_slave_1 entered promiscuous mode [ 61.028978][ T8329] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 61.058284][ T8327] team0: Port device team_slave_0 added [ 61.065274][ T8329] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 61.097748][ T8327] team0: Port device team_slave_1 added [ 61.119658][ T8329] team0: Port device team_slave_0 added [ 61.127537][ T8329] team0: Port device team_slave_1 added [ 61.188398][ T8327] device hsr_slave_0 entered promiscuous mode [ 61.247005][ T8327] device hsr_slave_1 entered promiscuous mode [ 61.296495][ T8327] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.370400][ T8329] device hsr_slave_0 entered promiscuous mode [ 61.426793][ T8329] device hsr_slave_1 entered promiscuous mode [ 61.476646][ T8329] debugfs: Directory 'hsr0' with parent '/' already present! [ 61.491070][ T8321] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.506236][ T8333] chnl_net:caif_netlink_parms(): no params data found [ 61.520810][ T8331] chnl_net:caif_netlink_parms(): no params data found [ 61.603646][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 61.613006][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 61.622423][ T8331] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.629804][ T8331] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.637975][ T8331] device bridge_slave_0 entered promiscuous mode [ 61.652379][ T8327] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 61.710262][ T8321] 8021q: adding VLAN 0 to HW filter on device team0 [ 61.717248][ T8333] bridge0: port 1(bridge_slave_0) entered blocking state [ 61.724337][ T8333] bridge0: port 1(bridge_slave_0) entered disabled state [ 61.733057][ T8333] device bridge_slave_0 entered promiscuous mode [ 61.743851][ T8333] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.751080][ T8333] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.759096][ T8333] device bridge_slave_1 entered promiscuous mode [ 61.769470][ T8323] 8021q: adding VLAN 0 to HW filter on device bond0 [ 61.776286][ T8331] bridge0: port 2(bridge_slave_1) entered blocking state [ 61.785218][ T8331] bridge0: port 2(bridge_slave_1) entered disabled state [ 61.793276][ T8331] device bridge_slave_1 entered promiscuous mode [ 61.800564][ T8327] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 61.858867][ T8327] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 61.909585][ T8327] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 61.984266][ T8329] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 62.042161][ T8329] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 62.104053][ T8331] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.118260][ T8329] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 62.149627][ T8329] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 62.189582][ T8331] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.204494][ T8333] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.218937][ T8323] 8021q: adding VLAN 0 to HW filter on device team0 [ 62.227135][ T8333] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.246184][ T3139] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.255144][ T3139] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.263972][ T3139] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.271296][ T3139] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.280865][ T3139] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.288894][ T3139] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 62.330776][ T8331] team0: Port device team_slave_0 added [ 62.340194][ T8331] team0: Port device team_slave_1 added [ 62.346050][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.355321][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.364054][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.373108][ T8339] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.380203][ T8339] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.389095][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.399025][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 62.407844][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 62.416112][ T8339] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.423231][ T8339] bridge0: port 1(bridge_slave_0) entered forwarding state [ 62.430944][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 62.439644][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 62.448141][ T8339] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.455172][ T8339] bridge0: port 2(bridge_slave_1) entered forwarding state [ 62.462789][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 62.471371][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.493740][ T8339] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.512862][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 62.521678][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.530583][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.539304][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.548148][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.557167][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.567044][ T8333] team0: Port device team_slave_0 added [ 62.574429][ T8333] team0: Port device team_slave_1 added [ 62.595530][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 62.604948][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 62.617583][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 62.626101][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 62.644602][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 62.669973][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.680578][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.689747][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 62.698322][ T12] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 62.738428][ T8331] device hsr_slave_0 entered promiscuous mode [ 62.786727][ T8331] device hsr_slave_1 entered promiscuous mode [ 62.826738][ T8331] debugfs: Directory 'hsr0' with parent '/' already present! [ 62.879383][ T8333] device hsr_slave_0 entered promiscuous mode [ 62.937068][ T8333] device hsr_slave_1 entered promiscuous mode [ 62.986893][ T8333] debugfs: Directory 'hsr0' with parent '/' already present! [ 63.000714][ T8321] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.013565][ T8321] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.032514][ T8323] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 63.044121][ T8323] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 63.064320][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.072902][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.082124][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 63.090916][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 63.148240][ T8327] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.156321][ T8333] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 63.179394][ T8333] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 63.242058][ T8333] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 63.297840][ T8327] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.308993][ T8333] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 63.368892][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.376915][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.384384][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.392632][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.400543][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 63.409167][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 63.422686][ T8321] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.448202][ T8331] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 63.488661][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.497482][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.505759][ T17] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.512869][ T17] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.528096][ T8329] 8021q: adding VLAN 0 to HW filter on device bond0 [ 63.539040][ T8323] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 63.552244][ T8331] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 63.590075][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 63.599309][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.608072][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.617022][ T2940] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.624120][ T2940] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.632145][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 63.649496][ T8329] 8021q: adding VLAN 0 to HW filter on device team0 [ 63.677905][ T8331] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 63.711071][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.725004][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.735541][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 63.752670][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 63.762268][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 63.772364][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 63.781464][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 63.796669][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 63.804529][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 63.814676][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 63.824007][ T2940] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.831121][ T2940] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.839348][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 63.848336][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 63.857171][ T2940] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.864249][ T2940] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.880234][ T2940] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 168.776332][ C0] rcu: INFO: rcu_preempt self-detected stall on CPU [ 168.783161][ C0] rcu: 0-...!: (10499 ticks this GP) idle=282/1/0x4000000000000002 softirq=10611/10611 fqs=6 [ 168.793767][ C0] (t=10501 jiffies g=6521 q=116) [ 168.798803][ C0] rcu: rcu_preempt kthread starved for 10490 jiffies! g6521 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 168.810022][ C0] rcu: RCU grace-period kthread stack dump: [ 168.815914][ C0] rcu_preempt R running task 29032 10 2 0x80004000 [ 168.823812][ C0] Call Trace: [ 168.827112][ C0] __schedule+0x9a0/0xcc0 [ 168.831444][ C0] schedule+0x181/0x210 [ 168.835592][ C0] schedule_timeout+0x14f/0x240 [ 168.840432][ C0] ? run_local_timers+0x120/0x120 [ 168.845450][ C0] rcu_gp_kthread+0xed8/0x1770 [ 168.850217][ C0] kthread+0x332/0x350 [ 168.854271][ C0] ? rcu_report_qs_rsp+0x140/0x140 [ 168.859521][ C0] ? kthread_blkcg+0xe0/0xe0 [ 168.864118][ C0] ret_from_fork+0x24/0x30 [ 168.868559][ C0] NMI backtrace for cpu 0 [ 168.872911][ C0] CPU: 0 PID: 191 Comm: kworker/u4:4 Not tainted 5.4.0-syzkaller #0 [ 168.880881][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 168.890963][ C0] Workqueue: 0x0 (gid-cache-wq) [ 168.895886][ C0] Call Trace: [ 168.899159][ C0] [ 168.902005][ C0] dump_stack+0x1fb/0x318 [ 168.906323][ C0] nmi_cpu_backtrace+0xaf/0x1a0 [ 168.911160][ C0] ? nmi_trigger_cpumask_backtrace+0x16d/0x290 [ 168.917300][ C0] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 168.923354][ C0] nmi_trigger_cpumask_backtrace+0x174/0x290 [ 168.929323][ C0] arch_trigger_cpumask_backtrace+0x10/0x20 [ 168.935201][ C0] rcu_dump_cpu_stacks+0x15a/0x220 [ 168.940306][ C0] rcu_sched_clock_irq+0xe25/0x1ad0 [ 168.945496][ C0] ? trace_hardirqs_off+0x74/0x80 [ 168.950561][ C0] update_process_times+0x12d/0x180 [ 168.955767][ C0] tick_sched_timer+0x263/0x420 [ 168.960753][ C0] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 168.966323][ C0] __hrtimer_run_queues+0x403/0x840 [ 168.971535][ C0] hrtimer_interrupt+0x38c/0xda0 [ 168.976484][ C0] ? debug_smp_processor_id+0x9/0x20 [ 168.981768][ C0] smp_apic_timer_interrupt+0x109/0x280 [ 168.987303][ C0] apic_timer_interrupt+0xf/0x20 [ 168.992224][ C0] [ 168.995153][ C0] RIP: 0010:mod_memcg_page_state+0x16/0x190 [ 169.001031][ C0] Code: 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 5a 26 2e 00 <48> 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df 42 [ 169.020722][ C0] RSP: 0018:ffffc90001787c00 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 169.029121][ C0] RAX: ffffffff81487326 RBX: ffffea0002478300 RCX: ffff8880a9182100 [ 169.037082][ C0] RDX: 0000000000000000 RSI: 00000000fffffffc RDI: ffffea0002478300 [ 169.045038][ C0] RBP: ffffc90001787c20 R08: 000000000003a728 R09: ffffed10119c36b7 [ 169.052995][ C0] R10: ffffed10119c36b7 R11: 0000000000000000 R12: ffff888091de4ca0 [ 169.060956][ C0] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff88808ce1b5a8 [ 169.068953][ C0] ? mod_memcg_page_state+0x16/0x190 [ 169.074248][ C0] free_thread_stack+0x168/0x590 [ 169.079211][ C0] put_task_stack+0xa3/0x130 [ 169.083817][ C0] finish_task_switch+0x3f1/0x550 [ 169.088845][ C0] __schedule+0x9a8/0xcc0 [ 169.093175][ C0] schedule+0x181/0x210 [ 169.097321][ C0] worker_thread+0x10d6/0x1630 [ 169.102097][ C0] kthread+0x332/0x350 [ 169.106151][ C0] ? rcu_lock_release+0x30/0x30 [ 169.110992][ C0] ? kthread_blkcg+0xe0/0xe0 [ 169.115571][ C0] ret_from_fork+0x24/0x30