[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 48.489993][ T27] audit: type=1800 audit(1578460789.695:25): pid=8310 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 48.542596][ T27] audit: type=1800 audit(1578460789.695:26): pid=8310 uid=0 auid=4294967295 ses=4294967295 subj=_ op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 48.576484][ T27] audit: type=1800 audit(1578460789.695:27): pid=8310 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 '10.128.0.151' (ECDSA) to the list of known hosts. 2020/01/08 05:19:59 fuzzer started 2020/01/08 05:20:02 dialing manager at 10.128.0.26:35703 2020/01/08 05:20:02 syscalls: 2824 2020/01/08 05:20:02 code coverage: enabled 2020/01/08 05:20:02 comparison tracing: enabled 2020/01/08 05:20:02 extra coverage: enabled 2020/01/08 05:20:02 setuid sandbox: enabled 2020/01/08 05:20:02 namespace sandbox: enabled 2020/01/08 05:20:02 Android sandbox: /sys/fs/selinux/policy does not exist 2020/01/08 05:20:02 fault injection: enabled 2020/01/08 05:20:02 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/01/08 05:20:02 net packet injection: enabled 2020/01/08 05:20:02 net device setup: enabled 2020/01/08 05:20:02 concurrency sanitizer: /sys/kernel/debug/kcsan does not exist 2020/01/08 05:20:02 devlink PCI setup: PCI device 0000:00:10.0 is not available 05:20:03 executing program 0: prctl$PR_SET_MM(0x23, 0x4, &(0x7f0000fff000/0x1000)=nil) 05:20:03 executing program 1: r0 = bpf$MAP_CREATE(0x0, &(0x7f0000733000)={0x5, 0x5, 0x1007, 0x9}, 0x3c) r1 = bpf$MAP_CREATE(0x0, &(0x7f00004f9fe4)={0xc, 0x4, 0x4, 0x1, 0x0, r0}, 0x3c) bpf$MAP_UPDATE_ELEM(0x4, &(0x7f0000000000)={r1, &(0x7f00000001c0), 0x0}, 0x20) syzkaller login: [ 62.070339][ T8477] IPVS: ftp: loaded support on port[0] = 21 [ 62.197814][ T8477] chnl_net:caif_netlink_parms(): no params data found [ 62.241288][ T8477] bridge0: port 1(bridge_slave_0) entered blocking state [ 62.249799][ T8477] bridge0: port 1(bridge_slave_0) entered disabled state [ 62.257854][ T8477] device bridge_slave_0 entered promiscuous mode [ 62.268744][ T8477] bridge0: port 2(bridge_slave_1) entered blocking state [ 62.275996][ T8477] bridge0: port 2(bridge_slave_1) entered disabled state [ 62.285018][ T8477] device bridge_slave_1 entered promiscuous mode [ 62.316825][ T8477] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 62.328236][ T8477] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 62.349819][ T8477] team0: Port device team_slave_0 added [ 62.357991][ T8477] team0: Port device team_slave_1 added 05:20:03 executing program 2: r0 = socket$inet6(0xa, 0x8000000000001, 0x8010000000000084) setsockopt$inet_sctp6_SCTP_DEFAULT_PRINFO(r0, 0x84, 0x72, &(0x7f0000000240)={0x0, 0x0, 0x70}, 0xc) [ 62.368259][ T8480] IPVS: ftp: loaded support on port[0] = 21 [ 62.426387][ T8477] device hsr_slave_0 entered promiscuous mode [ 62.503851][ T8477] device hsr_slave_1 entered promiscuous mode [ 62.564922][ T8482] IPVS: ftp: loaded support on port[0] = 21 05:20:03 executing program 3: bpf$PROG_LOAD(0x5, &(0x7f000000e000)={0x3, 0x4, &(0x7f0000000040)=@framed={{0xffffffb4, 0x5, 0x0, 0x0, 0x0, 0x61, 0x10, 0x59}, [@ldst={0x6, 0x0, 0x6}]}, &(0x7f0000003ff6)='GPL\x00', 0x4, 0xfd90, &(0x7f000000cf3d)=""/195, 0x0, 0x0, [], 0x0, 0x0, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x366, 0x10, &(0x7f0000000000), 0x1dd}, 0x48) [ 62.829552][ T8477] netdevsim netdevsim0 netdevsim0: renamed from eth0 05:20:04 executing program 4: perf_event_open(&(0x7f000001d000)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x41c1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$key(0xf, 0x3, 0x2) sendmsg$key(r0, &(0x7f0000000000)={0x500, 0x0, &(0x7f0000000140)={&(0x7f0000000080)={0x2, 0x400000000000003, 0x0, 0x403, 0x13, 0x0, 0x0, 0x0, [@sadb_address={0x5, 0x6, 0x0, 0x0, 0x0, @in6={0xa, 0x0, 0x0, @ipv4={[0x300000000000000, 0x0, 0x0, 0x6000000, 0x0, 0x0, 0x6000000, 0x40030000000000]}}}, @sadb_address={0x5, 0x9, 0xfffffffd, 0x0, 0x0, @in6={0xa, 0x0, 0x0, @initdev={0xfe, 0x88, [], 0x8, 0x0}}}, @sadb_sa={0x2, 0x1, 0x0, 0x0, 0x0, 0x0, 0xfffffffd}, @sadb_address={0x5, 0x5, 0x0, 0x0, 0x0, @in6={0xa, 0x0, 0x0, @mcast2}}]}, 0x98}}, 0x0) [ 62.915871][ T8477] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 62.977471][ T8482] chnl_net:caif_netlink_parms(): no params data found [ 62.988414][ T8486] IPVS: ftp: loaded support on port[0] = 21 [ 63.005276][ T8480] chnl_net:caif_netlink_parms(): no params data found [ 63.015545][ T8477] netdevsim netdevsim0 netdevsim2: renamed from eth2 05:20:04 executing program 5: ioctl$sock_SIOCETHTOOL(0xffffffffffffffff, 0x8946, &(0x7f0000000000)={'veth1_to_bond\x00', &(0x7f0000000040)=ANY=[@ANYBLOB="1d"]}) mprotect(&(0x7f0000000000/0x800000)=nil, 0x800000, 0x1) r0 = socket$inet(0x2, 0x80001, 0x84) getsockopt$inet_sctp_SCTP_MAX_BURST(r0, 0x84, 0x24, 0x0, &(0x7f0000000040)) [ 63.091813][ T8477] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 63.168585][ T8488] IPVS: ftp: loaded support on port[0] = 21 [ 63.238320][ T8482] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.252983][ T8482] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.261324][ T8482] device bridge_slave_0 entered promiscuous mode [ 63.269693][ T8477] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.276859][ T8477] bridge0: port 2(bridge_slave_1) entered forwarding state [ 63.284481][ T8477] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.291524][ T8477] bridge0: port 1(bridge_slave_0) entered forwarding state [ 63.317839][ T2827] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.327137][ T2827] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.336916][ T8482] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.344019][ T8482] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.351618][ T8482] device bridge_slave_1 entered promiscuous mode [ 63.372037][ T8482] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.394920][ T8480] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.402002][ T8480] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.410677][ T8480] device bridge_slave_0 entered promiscuous mode [ 63.424749][ T8490] IPVS: ftp: loaded support on port[0] = 21 [ 63.431488][ T8480] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.441302][ T8480] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.449422][ T8480] device bridge_slave_1 entered promiscuous mode [ 63.461723][ T8482] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.494857][ T8482] team0: Port device team_slave_0 added [ 63.518170][ T8482] team0: Port device team_slave_1 added [ 63.525976][ T8480] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 63.537803][ T8480] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 63.586191][ T8486] chnl_net:caif_netlink_parms(): no params data found [ 63.607889][ T8480] team0: Port device team_slave_0 added [ 63.632828][ T8480] team0: Port device team_slave_1 added [ 63.684221][ T8482] device hsr_slave_0 entered promiscuous mode [ 63.733177][ T8482] device hsr_slave_1 entered promiscuous mode [ 63.792944][ T8482] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 63.800881][ T8482] Cannot create hsr debugfs directory [ 63.835936][ T8486] bridge0: port 1(bridge_slave_0) entered blocking state [ 63.843301][ T8486] bridge0: port 1(bridge_slave_0) entered disabled state [ 63.853493][ T8486] device bridge_slave_0 entered promiscuous mode [ 63.862536][ T8486] bridge0: port 2(bridge_slave_1) entered blocking state [ 63.869606][ T8486] bridge0: port 2(bridge_slave_1) entered disabled state [ 63.877421][ T8486] device bridge_slave_1 entered promiscuous mode [ 63.975259][ T8480] device hsr_slave_0 entered promiscuous mode [ 64.013383][ T8480] device hsr_slave_1 entered promiscuous mode [ 64.062574][ T8480] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.070191][ T8480] Cannot create hsr debugfs directory [ 64.094823][ T8488] chnl_net:caif_netlink_parms(): no params data found [ 64.136769][ T8477] 8021q: adding VLAN 0 to HW filter on device bond0 [ 64.154084][ T8482] netdevsim netdevsim2 netdevsim0: renamed from eth0 [ 64.185045][ T8486] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.201282][ T8486] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.222360][ T8486] team0: Port device team_slave_0 added [ 64.237288][ T8482] netdevsim netdevsim2 netdevsim1: renamed from eth1 [ 64.275104][ T8482] netdevsim netdevsim2 netdevsim2: renamed from eth2 [ 64.328812][ T8482] netdevsim netdevsim2 netdevsim3: renamed from eth3 [ 64.375113][ T8486] team0: Port device team_slave_1 added [ 64.394801][ T8488] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.401945][ T8488] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.410193][ T8488] device bridge_slave_0 entered promiscuous mode [ 64.418541][ T8488] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.425719][ T8488] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.433642][ T8488] device bridge_slave_1 entered promiscuous mode [ 64.488817][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 64.498707][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 64.526894][ T8490] chnl_net:caif_netlink_parms(): no params data found [ 64.574345][ T8486] device hsr_slave_0 entered promiscuous mode [ 64.612990][ T8486] device hsr_slave_1 entered promiscuous mode [ 64.662639][ T8486] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 64.670286][ T8486] Cannot create hsr debugfs directory [ 64.684734][ T8488] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 64.696242][ T8477] 8021q: adding VLAN 0 to HW filter on device team0 [ 64.731471][ T8488] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 64.766885][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 64.776041][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 64.784907][ T2887] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.791961][ T2887] bridge0: port 1(bridge_slave_0) entered forwarding state [ 64.799655][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 64.808246][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 64.816604][ T2887] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.823688][ T2887] bridge0: port 2(bridge_slave_1) entered forwarding state [ 64.831140][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 64.870023][ T8488] team0: Port device team_slave_0 added [ 64.879423][ T8488] team0: Port device team_slave_1 added [ 64.900983][ T8490] bridge0: port 1(bridge_slave_0) entered blocking state [ 64.908481][ T8490] bridge0: port 1(bridge_slave_0) entered disabled state [ 64.917659][ T8490] device bridge_slave_0 entered promiscuous mode [ 64.926013][ T8490] bridge0: port 2(bridge_slave_1) entered blocking state [ 64.933515][ T8490] bridge0: port 2(bridge_slave_1) entered disabled state [ 64.941224][ T8490] device bridge_slave_1 entered promiscuous mode [ 64.948859][ T8480] netdevsim netdevsim1 netdevsim0: renamed from eth0 [ 65.007414][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 65.032262][ T8480] netdevsim netdevsim1 netdevsim1: renamed from eth1 [ 65.055248][ T8480] netdevsim netdevsim1 netdevsim2: renamed from eth2 [ 65.104564][ T8480] netdevsim netdevsim1 netdevsim3: renamed from eth3 [ 65.244687][ T8488] device hsr_slave_0 entered promiscuous mode [ 65.292921][ T8488] device hsr_slave_1 entered promiscuous mode [ 65.342907][ T8488] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.350504][ T8488] Cannot create hsr debugfs directory [ 65.377205][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 65.385844][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 65.394514][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 65.403134][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 65.416854][ T8490] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 65.436723][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 65.445100][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 65.455543][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 65.464128][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 65.472328][ T2851] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 65.487789][ T8477] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 65.503789][ T8490] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 65.557464][ T8490] team0: Port device team_slave_0 added [ 65.569508][ T8490] team0: Port device team_slave_1 added [ 65.577346][ T8486] netdevsim netdevsim3 netdevsim0: renamed from eth0 [ 65.644570][ T8482] 8021q: adding VLAN 0 to HW filter on device bond0 [ 65.667215][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 65.675112][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 65.683402][ T8486] netdevsim netdevsim3 netdevsim1: renamed from eth1 [ 65.731965][ T8477] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 65.774301][ T8490] device hsr_slave_0 entered promiscuous mode [ 65.843029][ T8490] device hsr_slave_1 entered promiscuous mode [ 65.912632][ T8490] debugfs: Directory 'hsr0' with parent 'hsr' already present! [ 65.920241][ T8490] Cannot create hsr debugfs directory [ 65.940459][ T8486] netdevsim netdevsim3 netdevsim2: renamed from eth2 [ 65.986644][ T8486] netdevsim netdevsim3 netdevsim3: renamed from eth3 [ 66.046725][ T8482] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.062053][ T8488] netdevsim netdevsim4 netdevsim0: renamed from eth0 [ 66.116440][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.124523][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.145199][ T8488] netdevsim netdevsim4 netdevsim1: renamed from eth1 [ 66.211978][ T8488] netdevsim netdevsim4 netdevsim2: renamed from eth2 [ 66.264814][ T8488] netdevsim netdevsim4 netdevsim3: renamed from eth3 [ 66.308934][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.317925][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.326569][ T2864] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.333639][ T2864] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.341385][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 66.350093][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 66.361445][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.404767][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.416156][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.424808][ T2887] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.431952][ T2887] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.449206][ T8490] netdevsim netdevsim5 netdevsim0: renamed from eth0 [ 66.515373][ T2841] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 66.524159][ T2841] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 66.543951][ T8490] netdevsim netdevsim5 netdevsim1: renamed from eth1 [ 66.576215][ T8490] netdevsim netdevsim5 netdevsim2: renamed from eth2 [ 66.634286][ T8490] netdevsim netdevsim5 netdevsim3: renamed from eth3 [ 66.709363][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 66.718553][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 66.726861][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 66.735694][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 66.745447][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 66.753369][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 66.760956][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 66.773512][ T8480] 8021q: adding VLAN 0 to HW filter on device bond0 [ 66.797144][ T8477] device veth0_vlan entered promiscuous mode [ 66.815052][ T8480] 8021q: adding VLAN 0 to HW filter on device team0 [ 66.824337][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 66.838162][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 66.846908][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 66.854838][ T2887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 66.868638][ T8477] device veth1_vlan entered promiscuous mode [ 66.882779][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 66.890753][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 66.900151][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 66.909049][ T2827] bridge0: port 1(bridge_slave_0) entered blocking state [ 66.916585][ T2827] bridge0: port 1(bridge_slave_0) entered forwarding state [ 66.924501][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 66.933382][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 66.941623][ T2827] bridge0: port 2(bridge_slave_1) entered blocking state [ 66.948864][ T2827] bridge0: port 2(bridge_slave_1) entered forwarding state [ 66.958034][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 66.966019][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 66.974675][ T2827] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 67.013624][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 67.021865][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 67.037575][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 67.047593][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 67.057039][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 67.066442][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 67.074995][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 67.083806][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 67.092207][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 67.103859][ T8486] 8021q: adding VLAN 0 to HW filter on device bond0 [ 67.111982][ T8482] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 67.150958][ T2864] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 67.173930][ T8488] 8021q: adding VLAN 0 to HW filter on device bond0 [ 172.202447][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 172.209604][ C1] (detected by 1, t=10502 jiffies, g=6581, q=102) [ 172.216141][ C1] rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294954360-4294943858), jiffies_till_next_fqs=1, root ->qsmask 0x0 [ 172.229540][ C1] syz-executor.0 R running task 29032 8496 8477 0x0000400e [ 172.237514][ C1] Call Trace: [ 172.240842][ C1] [ 172.243721][ C1] sched_show_task+0x40f/0x560 [ 172.248528][ C1] rcu_sched_clock_irq+0x1861/0x1ad0 [ 172.253858][ C1] update_process_times+0x12d/0x180 [ 172.259084][ C1] tick_sched_timer+0x263/0x420 [ 172.264001][ C1] ? tick_setup_sched_timer+0x3d0/0x3d0 [ 172.269612][ C1] __hrtimer_run_queues+0x403/0x840 [ 172.274992][ C1] hrtimer_interrupt+0x38c/0xda0 [ 172.279991][ C1] ? debug_smp_processor_id+0x9/0x20 [ 172.285570][ C1] smp_apic_timer_interrupt+0x109/0x280 [ 172.291161][ C1] apic_timer_interrupt+0xf/0x20 [ 172.296121][ C1] [ 172.299110][ C1] RIP: 0010:mod_memcg_page_state+0x2b/0x190 [ 172.305017][ C1] Code: 48 89 e5 41 57 41 56 41 54 53 41 89 f6 48 89 fb e8 ba 27 2e 00 48 83 c3 38 48 89 d8 48 c1 e8 03 49 bc 00 00 00 00 00 fc ff df <42> 80 3c 20 00 74 08 48 89 df e8 e6 8f 6a 00 48 8b 1b 48 85 db 0f [ 172.324659][ C1] RSP: 0018:ffffc900021d7830 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 [ 172.333137][ C1] RAX: 1ffffd400047474f RBX: ffffea00023a3a78 RCX: 0000000000040000 [ 172.341160][ C1] RDX: ffffc90001ea9000 RSI: 000000000003ffff RDI: 0000000000040000 [ 172.349179][ C1] RBP: ffffc900021d7850 R08: dffffc0000000000 R09: fffffbfff12c962d [ 172.357526][ C1] R10: fffffbfff12c962d R11: 0000000000000000 R12: dffffc0000000000 [ 172.365656][ C1] R13: dffffc0000000000 R14: 00000000fffffffc R15: ffff88808e611878 [ 172.373686][ C1] free_thread_stack+0x168/0x590 [ 172.378673][ C1] put_task_stack+0xa3/0x130 [ 172.383427][ C1] finish_task_switch+0x3f1/0x550 [ 172.388511][ C1] __schedule+0x9a8/0xcc0 [ 172.392897][ C1] ? ___preempt_schedule+0x16/0x18 [ 172.398027][ C1] preempt_schedule+0xdb/0x120 [ 172.402805][ C1] ___preempt_schedule+0x16/0x18 [ 172.407779][ C1] try_to_wake_up+0xe78/0x1050 [ 172.412609][ C1] ? do_raw_spin_unlock+0x142/0x950 [ 172.417840][ C1] wake_up_q+0x8c/0xe0 [ 172.421949][ C1] futex_wake+0x51c/0x6f0 [ 172.426324][ C1] do_futex+0x3f5/0x3d60 [ 172.430591][ C1] ? __lock_acquire+0xc75/0x1be0 [ 172.435594][ C1] ? check_preemption_disabled+0x44/0x260 [ 172.441363][ C1] ? debug_smp_processor_id+0x9/0x20 [ 172.446686][ C1] ? __might_fault+0xf9/0x160 [ 172.451405][ C1] ? __might_fault+0xf9/0x160 [ 172.456141][ C1] ? check_preemption_disabled+0xb4/0x260 [ 172.461906][ C1] ? debug_smp_processor_id+0x9/0x20 [ 172.467264][ C1] __se_sys_futex+0x28c/0x360 [ 172.472029][ C1] ? prepare_exit_to_usermode+0x221/0x5b0 [ 172.477840][ C1] ? trace_irq_disable_rcuidle+0x23/0x1e0 [ 172.483594][ C1] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 172.489107][ C1] __x64_sys_futex+0xe5/0x100 [ 172.493862][ C1] do_syscall_64+0xf7/0x1c0 [ 172.498454][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 172.504368][ C1] RIP: 0033:0x45af49 [ 172.508306][ C1] 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 [ 172.527912][ C1] RSP: 002b:00007f0dbb599cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca [ 172.536375][ C1] RAX: ffffffffffffffda RBX: 000000000075bf28 RCX: 000000000045af49 [ 172.544401][ C1] RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 000000000075bf2c [ 172.552429][ C1] RBP: 000000000075bf20 R08: 0000000000000016 R09: 0000000000000000 [ 172.560460][ C1] R10: ffffffffffffffff R11: 0000000000000246 R12: 000000000075bf2c [ 172.569514][ C1] R13: 00007ffe96e50ddf R14: 00007f0dbb59a9c0 R15: 000000000075bf2c [ 172.577702][ C1] rcu: rcu_preempt kthread starved for 10502 jiffies! g6581 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 [ 172.588937][ C1] rcu: RCU grace-period kthread stack dump: [ 172.594873][ C1] rcu_preempt R running task 28864 10 2 0x80004000 [ 172.603697][ C1] Call Trace: [ 172.607008][ C1] __schedule+0x9a0/0xcc0 [ 172.611380][ C1] schedule+0x181/0x210 [ 172.615573][ C1] schedule_timeout+0x14f/0x240 [ 172.620460][ C1] ? run_local_timers+0x120/0x120 [ 172.625529][ C1] rcu_gp_kthread+0xed8/0x1770 [ 172.630358][ C1] kthread+0x332/0x350 [ 172.634462][ C1] ? rcu_report_qs_rsp+0x140/0x140 [ 172.639626][ C1] ? kthread_blkcg+0xe0/0xe0 [ 172.644256][ C1] ret_from_fork+0x24/0x30