[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[ 21.685389] random: sshd: uninitialized urandom read (32 bytes read, 32 bits of entropy available) [?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 25.859879] random: sshd: uninitialized urandom read (32 bytes read, 38 bits of entropy available) [ 26.290528] random: sshd: uninitialized urandom read (32 bytes read, 39 bits of entropy available) [ 27.279496] random: sshd: uninitialized urandom read (32 bytes read, 117 bits of entropy available) [ 55.480819] random: nonblocking pool is initialized Warning: Permanently added '10.128.0.37' (ECDSA) to the list of known hosts. net.ipv6.conf.syz_tun.accept_dad = 0 [ 69.978110] IPVS: Creating netns size=2552 id=1 net.ipv6.conf.syz_tun.router_solicitations = 0 [ 70.030955] IPVS: Creating netns size=2552 id=2 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 [ 70.081190] IPVS: Creating netns size=2552 id=3 net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported [ 70.140956] IPVS: Creating netns size=2552 id=4 net.ipv6.conf.syz_tun.accept_dad = 0 RTNETLINK answers: Operation not supported net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported [ 70.218815] IPVS: Creating netns size=2552 id=5 RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported net.ipv6.conf.syz_tun.accept_dad = 0 net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 70.288973] ip (3971) used greatest stack depth: 24432 bytes left [ 70.292090] IPVS: Creating netns size=2552 id=6 RTNETLINK answers: Operation not supported net.ipv6.conf.syz_tun.accept_dad = 0 RTNETLINK answers: Operation not supported [ 70.362825] IPVS: Creating netns size=2552 id=7 net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported net.ipv6.conf.syz_tun.accept_dad = 0 [ 70.479053] IPVS: Creating netns size=2552 id=8 net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported net.ipv6.conf.syz_tun.accept_dad = 0 Error: argument "bridge0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist net.ipv6.conf.syz_tun.router_solicitations = 0 RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported [ 70.626887] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 70.689887] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 70.725603] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported [ 70.753219] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Error: argument "bond0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 70.900884] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 70.940456] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported RTNETLINK answers: Operation not supported [ 70.969654] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 70.992543] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready RTNETLINK answers: Operation not supported Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist Error: argument "bond0" is wrong: Device does not exist RTNETLINK answers: Operation not supported Error: argument "bridge0" is wrong: Device does not exist [ 71.185842] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready Error: argument "bond0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist [ 71.263861] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 71.273897] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready Error: argument "bridge0" is wrong: Device does not exist [ 71.304858] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.318056] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.341073] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready Error: argument "bridge0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist [ 71.351057] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.361704] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready Error: argument "bridge0" is wrong: Device does not exist [ 71.424587] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.449895] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready Error: argument "bond0" is wrong: Device does not exist [ 71.474136] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 71.510932] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready Error: argument "bond0" is wrong: Device does not exist Error: argument "bridge0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist [ 71.555822] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.564599] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.577404] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready Error: argument "bridge0" is wrong: Device does not exist Error: argument "bond0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist [ 71.633642] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.658019] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 71.669491] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready Error: argument "bond0" is wrong: Device does not exist [ 71.712177] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 71.721140] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 71.731102] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 71.744018] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready Error: argument "bond0" is wrong: Device does not exist Error: argument "bond0" is wrong: Device does not exist [ 71.787450] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 71.811372] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 71.819155] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 71.834296] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready Error: argument "bond0" is wrong: Device does not exist [ 71.857897] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready Error: argument "bond0" is wrong: Device does not exist [ 71.920328] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 71.929213] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 71.970637] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 72.023802] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready Error: argument "team0" is wrong: Device does not exist [ 72.073204] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready RTNETLINK answers: Operation not supported Error: argument "team0" is wrong: Device does not exist Error: argument "bond0" is wrong: Device does not exist [ 72.123198] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 72.138631] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready Error: argument "team0" is wrong: Device does not exist [ 72.224743] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready Error: argument "bond0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist Error: argument "team0" is wrong: Device does not exist [ 72.309169] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 72.321330] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready RTNETLINK answers: Operation not supported Cannot find device "bridge0" Error: argument "team0" is wrong: Device does not exist [ 72.389572] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 72.401900] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.428649] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready Error: argument "team0" is wrong: Device does not exist [ 72.451768] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.479945] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready Cannot find device "bridge0" [ 72.496569] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready Error: argument "team0" is wrong: Device does not exist Cannot find device "bridge0" [ 72.562862] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 72.579935] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready Cannot find device "bridge0" RTNETLINK answers: Operation not supported [ 72.669782] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.680397] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 72.706217] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready Cannot find device "bridge0" [ 72.719202] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready Cannot find device "bridge0" Cannot find device "bridge0" Error: argument "team0" is wrong: Device does not exist Cannot find device "bridge0" [ 72.771468] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready Cannot find device "vcan0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported [ 72.847722] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready Error: argument "team0" is wrong: Device does not exist Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "bridge0" [ 72.938181] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 72.958722] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready Cannot find device "vcan0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "vcan0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" [ 73.039732] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" [ 73.139891] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 73.177274] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "gre0" Cannot find device "bridge0" RTNETLINK answers: Operation not supported Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "vcan0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "bridge0" Cannot find device "gre0" RTNETLINK answers: Operation not supported Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "gre0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "gretap0" Cannot find device "vcan0" Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "vcan0" Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "gre0" Cannot find device "gre0" RTNETLINK answers: Operation not supported Cannot find device "bridge0" Cannot find device "vcan0" Cannot find device "gretap0" RTNETLINK answers: Operation not supported Cannot find device "vcan0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "vcan0" Cannot find device "gretap0" Cannot find device "vcan0" RTNETLINK answers: Operation not supported Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "vcan0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "vcan0" RTNETLINK answers: Operation not supported Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "vcan0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "gre0" Cannot find device "ip_vti0" Cannot find device "gre0" Cannot find device "gre0" Cannot find device "ip_vti0" Cannot find device "gre0" RTNETLINK answers: Operation not supported Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gre0" Cannot find device "ip6_vti0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "gre0" Cannot find device "ip6_vti0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gre0" Cannot find device "ip6_vti0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "ip6_vti0" Cannot find device "gretap0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "gre0" Cannot find device "gretap0" Cannot find device "ip6_vti0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "gretap0" Cannot find device "ip6_vti0" Cannot find device "gre0" Cannot find device "gretap0" RTNETLINK answers: Invalid argument Cannot find device "gretap0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "gre0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "gretap0" RTNETLINK answers: Invalid argument Cannot find device "ip_vti0" Cannot find device "ip_vti0" RTNETLINK answers: Invalid argument Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip_vti0" RTNETLINK answers: Invalid argument Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "ip_vti0" Cannot find device "gretap0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" RTNETLINK answers: Invalid argument Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" RTNETLINK answers: Invalid argument Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "erspan0" Cannot find device "ip6_vti0" Cannot find device "ip6_vti0" Cannot find device "ip_vti0" Cannot find device "ip6_vti0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6_vti0" RTNETLINK answers: Invalid argument Cannot find device "erspan0" Cannot find device "erspan0" RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument Cannot find device "ip6_vti0" RTNETLINK answers: Invalid argument Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "ip6_vti0" Cannot find device "erspan0" Cannot find device "bond0" RTNETLINK answers: Invalid argument RTNETLINK answers: Invalid argument Cannot find device "erspan0" Cannot find device "erspan0" RTNETLINK answers: Invalid argument Cannot find device "bond0" Cannot find device "ip6_vti0" Cannot find device "erspan0" RTNETLINK answers: Invalid argument Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" RTNETLINK answers: Invalid argument Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "bond0" RTNETLINK answers: Invalid argument [ 76.690419] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" [ 76.840842] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" Cannot find device "erspan0" [ 76.932394] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Cannot find device "erspan0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "bond0" [ 76.979038] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready Cannot find device "bond0" Cannot find device "team0" Cannot find device "erspan0" Cannot find device "bond0" Cannot find device "bond0" [ 77.083887] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "erspan0" [ 77.253271] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Cannot find device "bond0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "erspan0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "bond0" Cannot find device "team0" Cannot find device "team0" Cannot find device "bond0" Cannot find device "team0" Cannot find device "team0" Cannot find device "bond0" [ 77.548736] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.575637] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready Cannot find device "team0" [ 77.604879] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.630604] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready Cannot find device "bond0" Cannot find device "bond0" [ 77.774531] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.814159] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Cannot find device "team0" Cannot find device "team0" [ 77.840873] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.879548] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" [ 78.005353] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" [ 78.270142] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" Cannot find device "team0" executing program executing program [ 78.750637] IPVS: stopping backup sync thread 6462 ... [ 78.763992] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program [ 78.818780] IPVS: stopping backup sync thread 6482 ... executing program [ 78.876931] IPVS: stopping backup sync thread 6499 ... executing program executing program [ 78.925911] IPVS: stopping backup sync thread 6516 ... [ 78.932219] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 79.000608] IPVS: stopping backup sync thread 6536 ... [ 79.016110] IPVS: stopping backup sync thread 6541 ... [ 79.024720] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 79.055209] IPVS: stopping backup sync thread 6557 ... [ 79.061649] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.079657] IPVS: stopping backup sync thread 6560 ... [ 79.081480] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 79.115757] IPVS: stopping backup sync thread 6575 ... [ 79.124551] IPVS: stopping backup sync thread 6576 ... [ 79.142860] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.154670] IPVS: stopping backup sync thread 6586 ... executing program executing program executing program [ 79.160052] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.160074] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.179412] IPVS: stopping backup sync thread 6588 ... [ 79.212474] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.212526] IPVS: stopping backup sync thread 6601 ... [ 79.231895] IPVS: stopping backup sync thread 6608 ... [ 79.239277] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.253483] IPVS: stopping backup sync thread 6611 ... executing program executing program executing program [ 79.253502] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program [ 79.293706] IPVS: stopping backup sync thread 6624 ... [ 79.297708] IPVS: stopping backup sync thread 6627 ... [ 79.305678] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.327287] IPVS: stopping backup sync thread 6635 ... [ 79.332647] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 79.347514] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.352858] IPVS: stopping backup sync thread 6641 ... [ 79.373756] IPVS: stopping backup sync thread 6648 ... [ 79.379179] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 79.393199] IPVS: stopping backup sync thread 6651 ... [ 79.393829] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.424776] IPVS: stopping backup sync thread 6662 ... [ 79.430847] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program [ 79.452018] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.452130] IPVS: stopping backup sync thread 6669 ... executing program executing program executing program [ 79.494921] IPVS: stopping backup sync thread 6682 ... [ 79.503269] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.511608] IPVS: stopping backup sync thread 6687 ... [ 79.520257] IPVS: stopping backup sync thread 6689 ... [ 79.525612] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program [ 79.564007] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.573361] IPVS: stopping backup sync thread 6700 ... [ 79.584657] IPVS: stopping backup sync thread 6707 ... [ 79.591508] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program [ 79.619087] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.619089] IPVS: stopping backup sync thread 6715 ... [ 79.641683] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.652711] IPVS: stopping backup sync thread 6724 ... executing program [ 79.671512] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.681107] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.688178] IPVS: stopping backup sync thread 6737 ... [ 79.701452] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.703042] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program executing program [ 79.707256] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program [ 79.752620] IPVS: stopping backup sync thread 6763 ... [ 79.752646] IPVS: stopping backup sync thread 6736 ... [ 79.752670] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.753410] IPVS: stopping backup sync thread 6749 ... [ 79.757450] IPVS: stopping backup sync thread 6768 ... [ 79.757501] IPVS: stopping backup sync thread 6740 ... [ 79.771641] IPVS: stopping backup sync thread 6773 ... [ 79.776844] IPVS: stopping backup sync thread 6774 ... executing program executing program executing program executing program [ 79.780392] IPVS: stopping backup sync thread 6775 ... [ 79.797097] IPVS: stopping backup sync thread 6782 ... [ 79.799810] IPVS: stopping backup sync thread 6783 ... [ 79.805081] IPVS: stopping backup sync thread 6784 ... [ 79.821070] IPVS: stopping backup sync thread 6791 ... [ 79.835097] IPVS: stopping backup sync thread 6792 ... [ 79.842064] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program executing program [ 79.843987] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.844113] IPVS: stopping backup sync thread 6800 ... [ 79.848789] IPVS: stopping backup sync thread 6798 ... [ 79.853114] IPVS: stopping backup sync thread 6748 ... [ 79.881845] IPVS: stopping backup sync thread 6809 ... [ 79.884347] IPVS: stopping backup sync thread 6812 ... [ 79.886802] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program executing program [ 79.886912] IPVS: stopping backup sync thread 6814 ... [ 79.889872] IPVS: stopping backup sync thread 6815 ... [ 79.897044] IPVS: stopping backup sync thread 6818 ... [ 79.918012] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 79.918020] IPVS: stopping backup sync thread 6813 ... [ 79.933799] IPVS: stopping backup sync thread 6827 ... [ 79.943000] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program [ 79.946929] IPVS: stopping backup sync thread 6832 ... [ 79.963770] IPVS: stopping backup sync thread 6839 ... [ 79.965588] IPVS: stopping backup sync thread 6840 ... [ 79.980762] IPVS: stopping backup sync thread 6843 ... [ 79.995770] IPVS: stopping backup sync thread 6849 ... executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 79.997093] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.005469] IPVS: stopping backup sync thread 6856 ... [ 80.008044] IPVS: stopping backup sync thread 6858 ... [ 80.020367] IPVS: stopping backup sync thread 6864 ... [ 80.027534] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.027739] IPVS: stopping backup sync thread 6865 ... [ 80.030054] IPVS: stopping backup sync thread 6868 ... [ 80.042559] IPVS: stopping backup sync thread 6872 ... executing program executing program executing program executing program executing program executing program executing program [ 80.050878] IPVS: stopping backup sync thread 6875 ... [ 80.053137] IPVS: stopping backup sync thread 6877 ... [ 80.064612] IPVS: stopping backup sync thread 6880 ... [ 80.073102] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.074153] IPVS: stopping backup sync thread 6886 ... [ 80.075952] IPVS: stopping backup sync thread 6887 ... [ 80.098172] IPVS: stopping backup sync thread 6892 ... executing program executing program executing program executing program executing program executing program executing program executing program [ 80.110305] IPVS: stopping backup sync thread 6899 ... [ 80.110379] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.114640] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.117262] IPVS: stopping backup sync thread 6905 ... [ 80.118797] IPVS: stopping backup sync thread 6906 ... [ 80.125410] IPVS: stopping backup sync thread 6909 ... [ 80.146678] IPVS: stopping backup sync thread 6916 ... [ 80.152245] IPVS: stopping backup sync thread 6917 ... executing program executing program executing program executing program executing program executing program [ 80.160665] IPVS: stopping backup sync thread 6919 ... [ 80.162092] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.166261] IPVS: stopping backup sync thread 6923 ... [ 80.167882] IPVS: stopping backup sync thread 6924 ... [ 80.176556] IPVS: stopping backup sync thread 6927 ... [ 80.192417] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.203611] IPVS: stopping backup sync thread 6935 ... executing program executing program executing program executing program executing program executing program executing program [ 80.204070] IPVS: stopping backup sync thread 6941 ... [ 80.207592] IPVS: stopping backup sync thread 6902 ... [ 80.209769] IPVS: stopping backup sync thread 6942 ... [ 80.215438] IPVS: stopping backup sync thread 6944 ... [ 80.222303] IPVS: stopping backup sync thread 6947 ... [ 80.229462] IPVS: stopping backup sync thread 6952 ... [ 80.235567] IPVS: stopping backup sync thread 6954 ... [ 80.243374] IPVS: stopping backup sync thread 6958 ... [ 80.245328] IPVS: stopping backup sync thread 6959 ... executing program executing program executing program executing program executing program executing program executing program [ 80.257496] IPVS: stopping backup sync thread 6964 ... [ 80.262217] IPVS: stopping backup sync thread 6965 ... [ 80.268857] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.286110] IPVS: stopping backup sync thread 6978 ... [ 80.291436] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 80.292802] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 80.293966] IPVS: stopping backup sync thread 6981 ... [ 80.296942] IPVS: stopping backup sync thread 6982 ... [ 80.302773] IPVS: stopping backup sync thread 6983 ... [ 80.312746] [ 80.312749] ============================================= [ 80.312750] [ INFO: possible recursive locking detected ] [ 80.312755] 4.4.128-gbd23e3a #20 Not tainted [ 80.312756] --------------------------------------------- [ 80.312759] syz-executor035/6972 is trying to acquire lock: [ 80.312777] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 80.312778] [ 80.312778] but task is already holding lock: [ 80.312788] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 80.312790] [ 80.312790] other info that might help us debug this: [ 80.312791] Possible unsafe locking scenario: [ 80.312791] [ 80.312792] CPU0 [ 80.312794] ---- [ 80.312797] lock(rtnl_mutex); [ 80.312800] lock(rtnl_mutex); [ 80.312801] [ 80.312801] *** DEADLOCK *** [ 80.312801] [ 80.312803] May be due to missing lock nesting notation [ 80.312803] [ 80.312806] 2 locks held by syz-executor035/6972: [ 80.312817] #0: (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 80.312832] #1: (ipvs->sync_mutex){+.+.+.}, at: [] do_ip_vs_set_ctl+0x8e0/0xb70 [ 80.312833] [ 80.312833] stack backtrace: [ 80.312839] CPU: 0 PID: 6972 Comm: syz-executor035 Not tainted 4.4.128-gbd23e3a #20 [ 80.312843] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 80.312851] 0000000000000000 d7f7a6aa665a016a ffff8800b99574f0 ffffffff81e0daad [ 80.312859] ffffffff8539cfa0 ffffffff8539cfa0 ffffffff8539cfa0 ffff8800ad60a100 [ 80.312866] 00000002d87660b6 ffff8800b9957698 ffffffff8140faf1 ffffffff8574c580 [ 80.312868] Call Trace: [ 80.312877] [] dump_stack+0xc1/0x124 [ 80.312886] [] __lock_acquire.cold.58+0x154/0x58a [ 80.312897] [] ? add_lock_to_list.isra.27.constprop.41+0x140/0x1c0 [ 80.312905] [] ? debug_check_no_locks_freed+0x210/0x210 [ 80.312913] [] ? retint_kernel+0x2d/0x2d [ 80.312920] [] ? trace_hardirqs_on_caller+0x266/0x590 [ 80.312927] [] ? __lock_is_held+0xa2/0xf0 [ 80.312933] [] lock_acquire+0x15e/0x450 [ 80.312939] [] ? rtnl_lock+0x17/0x20 [ 80.312946] [] ? rtnl_lock+0x17/0x20 [ 80.312952] [] mutex_lock_nested+0xbb/0x850 [ 80.312958] [] ? rtnl_lock+0x17/0x20 [ 80.312966] [] ? qtaguid_untag+0x41f/0x620 [ 80.312972] [] ? mutex_lock_killable_nested+0x980/0x980 [ 80.312978] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 80.312988] [] ? qtaguid_untag+0x323/0x620 [ 80.312994] [] ? __lock_is_held+0xa2/0xf0 [ 80.313001] [] rtnl_lock+0x17/0x20 [ 80.313009] [] ip_mc_drop_socket+0x8c/0x230 [ 80.313016] [] inet_release+0x5b/0x1d0 [ 80.313023] [] sock_release+0x96/0x1c0 [ 80.313030] [] start_sync_thread+0xa18/0x1ed0 [ 80.313038] [] ? finish_task_switch+0x1e7/0x4e0 [ 80.313044] [] ? finish_task_switch+0x1bb/0x4e0 [ 80.313053] [] ? ip_vs_proc_sync_conn+0x827/0x827 [ 80.313059] [] ? ip_vs_sync_conn+0x27b0/0x27b0 [ 80.313066] [] ? mark_held_locks+0xc7/0x130 [ 80.313072] [] ? mutex_lock_nested+0x54e/0x850 [ 80.313079] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 80.313085] [] ? mutex_lock_nested+0x574/0x850 [ 80.313091] [] ? do_ip_vs_set_ctl+0x8e0/0xb70 [ 80.313098] [] ? mutex_lock_killable_nested+0x980/0x980 [ 80.313105] [] ? memcpy+0x45/0x50 [ 80.313111] [] do_ip_vs_set_ctl+0x8f2/0xb70 [ 80.313117] [] ? ip_vs_genl_set_cmd+0x970/0x970 [ 80.313124] [] ? debug_check_no_locks_freed+0x210/0x210 [ 80.313131] [] ? mutex_lock_nested+0x54e/0x850 [ 80.313138] [] ? __mutex_unlock_slowpath+0x209/0x3b0 [ 80.313144] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 80.313152] [] ? sock_has_perm+0x29f/0x400 [ 80.313158] [] ? mutex_unlock+0x9/0x10 [ 80.313164] [] nf_setsockopt+0x6d/0xc0 [ 80.313171] [] ip_setsockopt+0x9a/0xb0 [ 80.313178] [] tcp_setsockopt+0x88/0xe0 [ 80.313186] [] sock_common_setsockopt+0x9a/0xe0 [ 80.313192] [] SyS_setsockopt+0x166/0x260 [ 80.313200] [] ? vmacache_update+0xfe/0x130 [ 80.313207] [] ? SyS_recv+0x40/0x40 [ 80.313213] [] ? retint_user+0x18/0x3c [ 80.313220] [] ? trace_hardirqs_on_thunk+0x17/0x19 [ 80.313227] [] entry_SYSCALL_64_fastpath+0x22/0x9e [ 80.319551] IPVS: stopping backup sync thread 6980 ...