[ 24.131896] audit: type=1800 audit(1539745080.177:21): pid=5420 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="bootlogs" dev="sda1" ino=2419 res=0 [ 24.160368] audit: type=1800 audit(1539745080.177:22): pid=5420 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="motd" dev="sda1" ino=2447 res=0 [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [ 25.229124] sshd (5487) used greatest stack depth: 15440 bytes left [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts. 2018/10/17 02:58:12 parsed 1 programs 2018/10/17 02:58:14 executed programs: 0 syzkaller login: [ 38.097036] IPVS: ftp: loaded support on port[0] = 21 [ 38.098930] IPVS: ftp: loaded support on port[0] = 21 [ 38.130058] IPVS: ftp: loaded support on port[0] = 21 [ 38.137323] IPVS: ftp: loaded support on port[0] = 21 [ 38.151671] IPVS: ftp: loaded support on port[0] = 21 [ 38.153415] IPVS: ftp: loaded support on port[0] = 21 [ 39.500092] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.510681] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.518237] device bridge_slave_0 entered promiscuous mode [ 39.531550] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.537917] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.546260] device bridge_slave_0 entered promiscuous mode [ 39.567624] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.580683] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.596681] device bridge_slave_0 entered promiscuous mode [ 39.609411] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.617248] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.625186] device bridge_slave_0 entered promiscuous mode [ 39.641979] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.648438] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.658069] device bridge_slave_1 entered promiscuous mode [ 39.666593] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.675040] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.683336] device bridge_slave_0 entered promiscuous mode [ 39.691890] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.698249] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.707946] device bridge_slave_1 entered promiscuous mode [ 39.716943] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.723731] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.737454] device bridge_slave_1 entered promiscuous mode [ 39.746545] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.756603] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.763986] device bridge_slave_1 entered promiscuous mode [ 39.772062] bridge0: port 1(bridge_slave_0) entered blocking state [ 39.778441] bridge0: port 1(bridge_slave_0) entered disabled state [ 39.786588] device bridge_slave_0 entered promiscuous mode [ 39.797527] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.810664] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.818044] device bridge_slave_1 entered promiscuous mode [ 39.826614] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 39.836506] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 39.852580] bridge0: port 2(bridge_slave_1) entered blocking state [ 39.858950] bridge0: port 2(bridge_slave_1) entered disabled state [ 39.869751] device bridge_slave_1 entered promiscuous mode [ 39.877746] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 39.890712] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 39.902642] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 39.909854] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 39.938402] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 39.952698] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 39.961244] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 39.970821] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 39.984533] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 40.059420] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 40.165602] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.196261] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.232039] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.243683] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.272321] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.292144] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.301380] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.315508] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.333380] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 40.352427] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.363098] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 40.370000] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.389792] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.399862] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 40.416948] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 40.427025] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.438510] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.458670] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 40.470153] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 40.481018] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 40.489083] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.502026] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.520424] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 40.530963] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 40.542441] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 40.552572] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 40.561098] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.575028] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.586344] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.594706] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 40.611884] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 40.647220] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 40.790284] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.805682] team0: Port device team_slave_0 added [ 40.821239] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.832579] team0: Port device team_slave_0 added [ 40.841445] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.849329] team0: Port device team_slave_0 added [ 40.862702] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.873030] team0: Port device team_slave_0 added [ 40.881487] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.888913] team0: Port device team_slave_1 added [ 40.896363] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.907732] team0: Port device team_slave_0 added [ 40.915044] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 40.924072] team0: Port device team_slave_0 added [ 40.931607] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.939054] team0: Port device team_slave_1 added [ 40.948174] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.956952] team0: Port device team_slave_1 added [ 40.966978] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.981350] team0: Port device team_slave_1 added [ 40.988756] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 40.996510] team0: Port device team_slave_1 added [ 41.002568] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.021753] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 41.029080] team0: Port device team_slave_1 added [ 41.048492] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.081264] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.089058] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.111644] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.127905] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.144076] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.159240] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 41.173964] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.194164] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.205862] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.215944] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.225808] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.234583] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 41.242079] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.250418] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 41.261518] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.272792] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 41.282181] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.298074] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.319756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.328062] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 41.335939] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 41.343524] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.351235] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.360090] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.367768] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.380131] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.395745] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.406749] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.422633] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.430909] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.438743] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.446731] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.454824] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.471483] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.483909] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.500261] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.512654] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.534877] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.543580] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.551641] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.559310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.567450] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 41.585700] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.605046] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 41.616694] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 41.639945] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.648321] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 41.686171] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 41.716883] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 41.731098] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 42.158729] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.165261] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.172270] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.178640] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.188374] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.201782] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 42.237257] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.243682] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.250340] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.256765] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.280179] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.427131] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.433669] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.440400] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.446828] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.454826] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.463981] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.470341] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.477068] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.483487] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.495713] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.519736] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.526154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.532878] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.539247] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.548150] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 42.557272] bridge0: port 2(bridge_slave_1) entered blocking state [ 42.563672] bridge0: port 2(bridge_slave_1) entered forwarding state [ 42.570325] bridge0: port 1(bridge_slave_0) entered blocking state [ 42.576755] bridge0: port 1(bridge_slave_0) entered forwarding state [ 42.585104] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 43.280717] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.287947] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.311576] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.318807] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 43.327811] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 45.038368] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.109879] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.233655] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.288757] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.336079] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.357712] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.415701] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.442526] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.507839] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.560984] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.606939] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.623446] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.630114] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.639166] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.691403] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.697571] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.708276] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.733796] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 45.782334] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.788593] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.798655] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.876209] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.890850] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.899851] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.920127] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 45.933287] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.948935] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 45.959707] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.007601] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.038537] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 46.053920] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 46.062305] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 46.124732] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.166334] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.207801] 8021q: adding VLAN 0 to HW filter on device team0 [ 46.322396] 8021q: adding VLAN 0 to HW filter on device team0 [ 47.611342] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.615994] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 2018/10/17 02:58:23 executed programs: 6 [ 47.668986] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.722879] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.723643] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.784174] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.825560] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.838316] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.849377] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 47.884571] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.622318] net_ratelimit: 294 callbacks suppressed [ 52.622329] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.658817] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. 2018/10/17 02:58:28 executed programs: 185 [ 52.662267] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.683934] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.688521] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.710654] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.724049] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.739030] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.758008] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 52.769465] TCP: request_sock_TCPv6: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. [ 53.998291] WARNING: CPU: 0 PID: 8171 at include/net/sock.h:1539 tcp_cleanup_ulp+0x1ad/0x200 [ 54.007044] Kernel panic - not syncing: panic_on_warn set ... [ 54.012936] CPU: 0 PID: 8171 Comm: syz-executor4 Not tainted 4.19.0-rc8-next-20181016+ #95 [ 54.021335] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.030694] Call Trace: [ 54.033280] [ 54.035442] dump_stack+0x244/0x39d [ 54.039076] ? dump_stack_print_info.cold.1+0x20/0x20 [ 54.044279] panic+0x2ad/0x55c [ 54.047474] ? add_taint.cold.5+0x16/0x16 [ 54.051636] ? __warn.cold.8+0x5/0x45 [ 54.055439] ? __warn+0xe8/0x1d0 [ 54.058808] ? tcp_cleanup_ulp+0x1ad/0x200 [ 54.063043] __warn.cold.8+0x20/0x45 [ 54.066760] ? rcu_softirq_qs+0x20/0x20 [ 54.070737] ? tcp_cleanup_ulp+0x1ad/0x200 [ 54.074972] report_bug+0x254/0x2d0 [ 54.078606] do_error_trap+0x11b/0x200 [ 54.082505] do_invalid_op+0x36/0x40 [ 54.086218] ? tcp_cleanup_ulp+0x1ad/0x200 [ 54.090471] invalid_op+0x14/0x20 [ 54.093926] RIP: 0010:tcp_cleanup_ulp+0x1ad/0x200 [ 54.098769] Code: 83 c0 03 38 d0 7c 04 84 d2 75 61 44 8b 25 cb 4e df 02 31 ff 44 89 e6 e8 51 3d ed fa 45 85 e4 0f 84 91 fe ff ff e8 33 3c ed fa <0f> 0b e9 85 fe ff ff 4c 89 ef e8 34 84 30 fb e9 9f fe ff ff 4c 89 [ 54.117667] RSP: 0018:ffff8801dae06860 EFLAGS: 00010206 [ 54.123028] RAX: ffff8801b8ab0480 RBX: ffff8801b7815000 RCX: ffffffff8690e6ff [ 54.130296] RDX: 0000000000000100 RSI: ffffffff8690e70d RDI: 0000000000000005 [ 54.137561] RBP: ffff8801dae06880 R08: ffff8801b8ab0480 R09: 0000000000000002 [ 54.144833] R10: 0000000000000000 R11: ffff8801b8ab0480 R12: 0000000000000001 [ 54.152106] R13: 0000000000000000 R14: 0000000000000003 R15: ffff8801dae069a0 [ 54.159425] ? tcp_cleanup_ulp+0x19f/0x200 [ 54.163674] ? tcp_cleanup_ulp+0x1ad/0x200 [ 54.167918] tcp_v4_destroy_sock+0x15c/0x980 [ 54.172333] ? debug_object_init_on_stack+0x20/0x20 [ 54.177371] ? ip_queue_xmit+0x70/0x70 [ 54.181264] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 54.186801] ? hrtimer_try_to_cancel+0xb8/0x6f0 [ 54.191473] ? tcp_set_state+0x1d0/0x9c0 [ 54.195540] ? del_timer+0xf9/0x150 [ 54.199190] ? detach_if_pending+0x6b0/0x6b0 [ 54.203603] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.209160] ? check_preemption_disabled+0x48/0x280 [ 54.214187] tcp_v6_destroy_sock+0x15/0x20 [ 54.218456] inet_csk_destroy_sock+0x19f/0x440 [ 54.223053] tcp_done+0x272/0x310 [ 54.226508] tcp_v6_syn_recv_sock+0x1f21/0x25f0 [ 54.231187] ? inet6_sk_rx_dst_set+0xb30/0xb30 [ 54.235785] ? ip6_dst_lookup_tail+0xba3/0x1d60 [ 54.240476] ? __local_bh_enable_ip+0x160/0x260 [ 54.245162] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.250697] ? ip6_dst_lookup_tail+0x3c8/0x1d60 [ 54.255397] ? __lock_is_held+0xb5/0x140 [ 54.259475] ? rcu_read_lock_sched_held+0x14f/0x180 [ 54.264501] tcp_get_cookie_sock+0x10e/0x580 [ 54.268932] ? cookie_ecn_ok+0x140/0x140 [ 54.272995] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.278536] ? xfrm_lookup_route+0x74/0x1f0 [ 54.282863] ? ip6_dst_lookup_flow+0x1ce/0x270 [ 54.287446] ? ip6_dst_lookup+0x60/0x60 [ 54.291468] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.297019] ? tcp_select_initial_window+0x1e6/0x400 [ 54.302122] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.307671] cookie_v6_check+0x1830/0x27d0 [ 54.311917] ? cookie_v6_init_sequence+0xe0/0xe0 [ 54.316677] ? find_held_lock+0x36/0x1c0 [ 54.320771] ? sk_filter_trim_cap+0x476/0xa60 [ 54.325269] ? lock_downgrade+0x900/0x900 [ 54.329423] ? check_preemption_disabled+0x48/0x280 [ 54.334462] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 54.339397] ? kasan_check_read+0x11/0x20 [ 54.343552] ? rcu_softirq_qs+0x20/0x20 [ 54.347536] ? sk_filter_trim_cap+0xfb/0xa60 [ 54.351956] ? tcp_v6_inbound_md5_hash+0x1b7/0x410 [ 54.356893] tcp_v6_do_rcv+0x10ea/0x13c0 [ 54.360951] ? tcp_v6_do_rcv+0x10ea/0x13c0 [ 54.365193] tcp_v6_rcv+0x34e0/0x3ab0 [ 54.368999] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 54.374044] ? tcp_v6_reqsk_send_ack+0x370/0x370 [ 54.378812] ? __lock_is_held+0xb5/0x140 [ 54.382889] ip6_input_finish+0x3fc/0x1aa0 [ 54.387140] ? ip6_rcv_core.isra.16+0x1e10/0x1e10 [ 54.392004] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.397025] ? nf_hook_slow+0x11e/0x1c0 [ 54.401001] ip6_input+0xe4/0x600 [ 54.404457] ? ip6_input_finish+0x1aa0/0x1aa0 [ 54.408955] ? ip6_rcv_core.isra.16+0x1e10/0x1e10 [ 54.413802] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 54.418732] ? kasan_check_read+0x11/0x20 [ 54.422883] ? rcu_softirq_qs+0x20/0x20 [ 54.426865] ip6_rcv_finish+0x17a/0x330 [ 54.430858] ipv6_rcv+0x110/0x630 [ 54.434326] ? ip6_input+0x600/0x600 [ 54.438080] ? ip6_rcv_finish_core.isra.13+0x720/0x720 [ 54.443394] ? lock_acquire+0x1ed/0x520 [ 54.447377] ? process_backlog+0x1dd/0x7a0 [ 54.451636] __netif_receive_skb_one_core+0x14d/0x200 [ 54.456831] ? __netif_receive_skb_core+0x3b20/0x3b20 [ 54.462022] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 54.467311] ? rcu_softirq_qs+0x20/0x20 [ 54.471285] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.476409] __netif_receive_skb+0x27/0x1e0 [ 54.480730] process_backlog+0x24e/0x7a0 [ 54.484798] net_rx_action+0x7fa/0x19b0 [ 54.488802] ? napi_complete_done+0x7a0/0x7a0 [ 54.493306] ? try_to_wake_up+0x10a/0x12e0 [ 54.497547] ? trace_hardirqs_off+0xb8/0x310 [ 54.501955] ? kasan_check_read+0x11/0x20 [ 54.506101] ? do_raw_spin_unlock+0xa7/0x330 [ 54.510514] ? trace_hardirqs_on+0x310/0x310 [ 54.514921] ? do_raw_spin_trylock+0x270/0x270 [ 54.519507] ? lock_pin_lock+0x350/0x350 [ 54.523577] ? try_to_wake_up+0x10a/0x12e0 [ 54.527833] ? migrate_swap_stop+0x8a0/0x8a0 [ 54.532238] ? find_held_lock+0x36/0x1c0 [ 54.536329] ? pvclock_read_flags+0x160/0x160 [ 54.540837] ? check_preemption_disabled+0x48/0x280 [ 54.545856] ? print_usage_bug+0xc0/0xc0 [ 54.549915] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.555454] ? check_preemption_disabled+0x48/0x280 [ 54.560496] ? __local_bh_enable+0xf6/0x140 [ 54.564835] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.570377] ? zap_class+0x640/0x640 [ 54.574126] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.579664] ? check_preemption_disabled+0x48/0x280 [ 54.584693] ? __lock_is_held+0xb5/0x140 [ 54.588769] __do_softirq+0x308/0xb7e [ 54.592577] ? check_preemption_disabled+0x48/0x280 [ 54.597619] ? __irqentry_text_end+0x1f9688/0x1f9688 [ 54.602731] ? irq_exit+0xbd/0x1c0 [ 54.606271] ? smp_call_function_single_interrupt+0x159/0x640 [ 54.612157] ? smp_call_function_interrupt+0x640/0x640 [ 54.617437] ? ret_from_intr+0xb/0x1e [ 54.621240] ? trace_hardirqs_off_caller+0xbb/0x300 [ 54.626258] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.631101] ? trace_hardirqs_on_caller+0x310/0x310 [ 54.636130] ? task_prio+0x50/0x50 [ 54.639668] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 54.645202] ? check_preemption_disabled+0x48/0x280 [ 54.650225] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.655068] ? ip6_finish_output2+0xcb1/0x27a0 [ 54.659658] do_softirq_own_stack+0x2a/0x40 [ 54.663975] [ 54.666217] do_softirq.part.14+0x126/0x160 [ 54.670539] __local_bh_enable_ip+0x21d/0x260 [ 54.675037] ip6_finish_output2+0xce4/0x27a0 [ 54.679473] ? ip6_copy_metadata+0xe30/0xe30 [ 54.683907] ? ip6_mtu+0x39c/0x520 [ 54.687451] ? lock_downgrade+0x900/0x900 [ 54.691600] ? check_preemption_disabled+0x48/0x280 [ 54.696635] ? zap_class+0x640/0x640 [ 54.700350] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 54.705647] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.711185] ? check_preemption_disabled+0x48/0x280 [ 54.716208] ? __lock_is_held+0xb5/0x140 [ 54.720281] ip6_finish_output+0x468/0xc60 [ 54.724517] ? ip6_finish_output+0x468/0xc60 [ 54.728929] ip6_output+0x232/0x9d0 [ 54.732558] ? ip6_finish_output+0xc60/0xc60 [ 54.736970] ? ip6_fragment+0x38e0/0x38e0 [ 54.741118] ? __lock_is_held+0xb5/0x140 [ 54.745186] ip6_xmit+0xf64/0x2410 [ 54.748731] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 54.754021] ? ip6_finish_output2+0x27a0/0x27a0 [ 54.758693] ? inet6_csk_route_socket+0x704/0x1020 [ 54.763634] ? inet6_csk_route_req+0x820/0x820 [ 54.768261] ? memcpy+0x45/0x50 [ 54.771550] ? ip6_append_data+0x2d0/0x2d0 [ 54.775786] ? lock_acquire+0x1ed/0x520 [ 54.779759] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.785296] ? check_preemption_disabled+0x48/0x280 [ 54.790318] ? __lock_is_held+0xb5/0x140 [ 54.794427] inet6_csk_xmit+0x375/0x630 [ 54.798417] ? inet6_csk_update_pmtu+0x190/0x190 [ 54.803179] ? tcp_schedule_loss_probe+0x530/0x530 [ 54.808125] __tcp_transmit_skb+0x1bc5/0x3b00 [ 54.812644] ? __tcp_select_window+0x9e0/0x9e0 [ 54.817228] ? pvclock_read_flags+0x160/0x160 [ 54.821749] ? tcp_write_xmit+0xf1/0x5710 [ 54.825900] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.831009] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.836029] ? tcp_rtx_synack+0x730/0x730 [ 54.840180] ? ktime_get_raw_ts64+0x4d0/0x4d0 [ 54.844675] ? zap_class+0x640/0x640 [ 54.848405] tcp_write_xmit+0x1676/0x5710 [ 54.852573] ? __tcp_transmit_skb+0x3b00/0x3b00 [ 54.857247] ? iov_iter_npages+0xdd0/0xdd0 [ 54.861487] ? kasan_check_write+0x14/0x20 [ 54.865718] ? copyin+0xb7/0x100 [ 54.869086] ? _copy_from_iter_full+0x2b8/0xc20 [ 54.873757] ? tcp_chrono_start+0x190/0x1e0 [ 54.878093] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 54.883111] ? tcp_rate_check_app_limited+0x121/0x460 [ 54.888299] ? iov_iter_advance+0x1370/0x1370 [ 54.892797] tcp_push_one+0xdd/0x110 [ 54.896512] tcp_sendmsg_locked+0xbc3/0x3fa0 [ 54.900955] ? tcp_sendpage+0x60/0x60 [ 54.904801] ? find_held_lock+0x36/0x1c0 [ 54.908868] ? mark_held_locks+0xc7/0x130 [ 54.913018] ? __local_bh_enable_ip+0x160/0x260 [ 54.917688] ? __local_bh_enable_ip+0x160/0x260 [ 54.922369] ? trace_hardirqs_on+0xbd/0x310 [ 54.926702] ? lock_release+0xa10/0xa10 [ 54.930685] ? lock_sock_nested+0xe2/0x120 [ 54.934920] ? trace_hardirqs_off_caller+0x300/0x300 [ 54.940026] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.945562] ? check_preemption_disabled+0x48/0x280 [ 54.950609] ? lock_sock_nested+0x9a/0x120 [ 54.954852] ? lock_sock_nested+0x9a/0x120 [ 54.959092] ? __local_bh_enable_ip+0x160/0x260 [ 54.963769] tcp_sendmsg+0x2f/0x50 [ 54.967323] inet_sendmsg+0x19c/0x690 [ 54.971133] ? ipip_gro_receive+0x100/0x100 [ 54.975473] ? apparmor_socket_sendmsg+0x29/0x30 [ 54.980245] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 54.985782] ? security_socket_sendmsg+0x94/0xc0 [ 54.990556] ? ipip_gro_receive+0x100/0x100 [ 54.994930] sock_sendmsg+0xd5/0x120 [ 54.999287] __sys_sendto+0x3d7/0x670 [ 55.003106] ? __ia32_sys_getpeername+0xb0/0xb0 [ 55.007806] ? lock_release+0xa10/0xa10 [ 55.011779] ? perf_trace_sched_process_exec+0x860/0x860 [ 55.017232] ? posix_ktime_get_ts+0x15/0x20 [ 55.021569] ? trace_hardirqs_off_caller+0x300/0x300 [ 55.026693] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 55.032231] ? put_timespec64+0x10f/0x1b0 [ 55.036388] ? do_syscall_64+0x9a/0x820 [ 55.040374] ? do_syscall_64+0x9a/0x820 [ 55.044351] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 55.048946] ? trace_hardirqs_on+0xbd/0x310 [ 55.053266] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 55.058803] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.064213] ? trace_hardirqs_off_caller+0x300/0x300 [ 55.069368] __x64_sys_sendto+0xe1/0x1a0 [ 55.073444] do_syscall_64+0x1b9/0x820 [ 55.077332] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 55.082719] ? syscall_return_slowpath+0x5e0/0x5e0 [ 55.087655] ? trace_hardirqs_on_caller+0x310/0x310 [ 55.092684] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 55.097716] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 55.104386] ? __switch_to_asm+0x40/0x70 [ 55.108445] ? __switch_to_asm+0x34/0x70 [ 55.112508] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 55.117381] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 55.122570] RIP: 0033:0x457569 [ 55.125781] Code: fd b3 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 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 55.144678] RSP: 002b:00007f876cc71c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 55.152387] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457569 [ 55.159666] RDX: fffffffffffffedd RSI: 0000000020000280 RDI: 0000000000000005 [ 55.166936] RBP: 000000000072bfa0 R08: 0000000020000080 R09: 000000000000001c [ 55.174216] R10: 0000000020000004 R11: 0000000000000246 R12: 00007f876cc726d4 [ 55.181484] R13: 00000000004c3921 R14: 00000000004d57d8 R15: 00000000ffffffff [ 55.189779] Kernel Offset: disabled [ 55.193407] Rebooting in 86400 seconds..