INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] 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 syzkaller login: [ 23.444955] sshd (4457) used greatest stack depth: 16392 bytes left Warning: Permanently added '10.128.0.53' (ECDSA) to the list of known hosts. 2018/04/12 05:12:31 parsed 1 programs 2018/04/12 05:12:31 executed programs: 0 [ 30.302825] IPVS: ftp: loaded support on port[0] = 21 [ 30.306213] IPVS: ftp: loaded support on port[0] = 21 [ 30.338906] IPVS: ftp: loaded support on port[0] = 21 [ 30.362900] IPVS: ftp: loaded support on port[0] = 21 [ 30.365363] IPVS: ftp: loaded support on port[0] = 21 [ 30.376136] IPVS: ftp: loaded support on port[0] = 21 [ 30.388619] IPVS: ftp: loaded support on port[0] = 21 [ 30.430151] IPVS: ftp: loaded support on port[0] = 21 [ 30.493899] IPVS: stopping backup sync thread 4504 ... [ 30.494886] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.514273] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.514354] IPVS: stopping backup sync thread 4506 ... [ 30.543665] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.589194] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.605539] IPVS: stopping backup sync thread 4508 ... [ 30.631110] IPVS: stopping backup sync thread 4520 ... [ 30.633829] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.650594] IPVS: stopping backup sync thread 4514 ... [ 30.670226] IPVS: stopping backup sync thread 4527 ... [ 30.670730] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.680210] IPVS: stopping backup sync thread 4529 ... [ 30.723124] IPVS: stopping backup sync thread 4541 ... [ 30.749455] IPVS: stopping backup sync thread 4548 ... [ 30.755454] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.764527] IPVS: stopping backup sync thread 4553 ... [ 30.770236] IPVS: stopping backup sync thread 4555 ... [ 30.781660] IPVS: stopping backup sync thread 4558 ... [ 30.781870] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.797307] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.804719] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.834552] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.843797] IPVS: stopping backup sync thread 4565 ... [ 30.853772] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.875613] IPVS: stopping backup sync thread 4564 ... [ 30.878340] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.882177] IPVS: stopping backup sync thread 4561 ... [ 30.909874] IPVS: stopping backup sync thread 4581 ... [ 30.915476] IPVS: stopping backup sync thread 4569 ... [ 30.923684] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.923748] IPVS: stopping backup sync thread 4585 ... [ 30.951976] IPVS: stopping backup sync thread 4588 ... [ 30.957805] IPVS: stopping backup sync thread 4574 ... [ 30.965387] IPVS: stopping backup sync thread 4596 ... [ 30.966438] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.971418] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.982301] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.003954] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.004103] IPVS: stopping backup sync thread 4600 ... [ 31.013066] IPVS: stopping backup sync thread 4604 ... [ 31.027067] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.056285] IPVS: stopping backup sync thread 4611 ... [ 31.056666] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.064458] IPVS: stopping backup sync thread 4597 ... [ 31.079604] IPVS: stopping backup sync thread 4598 ... [ 31.095958] IPVS: stopping backup sync thread 4623 ... [ 31.110594] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.110751] IPVS: stopping backup sync thread 4625 ... [ 31.131131] IPVS: stopping backup sync thread 4629 ... [ 31.132704] IPVS: stopping backup sync thread 4606 ... [ 31.143086] IPVS: stopping backup sync thread 4635 ... [ 31.151846] IPVS: stopping backup sync thread 4636 ... [ 31.152137] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.173169] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.174258] IPVS: stopping backup sync thread 4637 ... [ 31.204608] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.218162] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.230623] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.275142] IPVS: stopping backup sync thread 4658 ... [ 31.285966] IPVS: stopping backup sync thread 4643 ... [ 31.286105] IPVS: stopping backup sync thread 4667 ... [ 31.291450] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.305476] IPVS: stopping backup sync thread 4646 ... [ 31.307117] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.333719] IPVS: stopping backup sync thread 4674 ... [ 31.333762] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.339257] IPVS: stopping backup sync thread 4654 ... [ 31.344746] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.366238] IPVS: stopping backup sync thread 4672 ... [ 31.372728] IPVS: stopping backup sync thread 4680 ... [ 31.377731] IPVS: stopping backup sync thread 4685 ... [ 31.384319] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.399304] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.425804] IPVS: stopping backup sync thread 4678 ... [ 31.431592] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.441469] IPVS: stopping backup sync thread 4703 ... [ 31.455251] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.493428] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.493942] IPVS: stopping backup sync thread 4691 ... [ 31.514588] IPVS: stopping backup sync thread 4689 ... [ 31.515543] IPVS: stopping backup sync thread 4694 ... [ 31.525754] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.538792] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.541685] IPVS: stopping backup sync thread 4722 ... [ 31.566197] IPVS: stopping backup sync thread 4729 ... [ 31.570491] IPVS: stopping backup sync thread 4720 ... [ 31.571765] IPVS: stopping backup sync thread 4706 ... [ 31.591917] IPVS: stopping backup sync thread 4713 ... [ 31.592836] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.607451] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.608360] IPVS: stopping backup sync thread 4736 ... [ 31.626489] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.632273] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.651689] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.676328] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.680825] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.717919] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.718379] IPVS: stopping backup sync thread 4733 ... [ 31.726527] IPVS: stopping backup sync thread 4751 ... [ 31.734174] IPVS: stopping backup sync thread 4749 ... [ 31.737573] IPVS: stopping backup sync thread 4745 ... [ 31.749816] IPVS: stopping backup sync thread 4759 ... [ 31.760447] IPVS: stopping backup sync thread 4763 ... [ 31.774941] IPVS: stopping backup sync thread 4777 ... [ 31.789576] IPVS: stopping backup sync thread 4779 ... [ 31.797750] IPVS: stopping backup sync thread 4783 ... [ 31.797898] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.814576] IPVS: stopping backup sync thread 4765 ... [ 31.815233] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.850956] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.864276] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.880329] IPVS: stopping backup sync thread 4804 ... [ 31.880995] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.899088] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.899950] IPVS: stopping backup sync thread 4810 ... [ 31.915444] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.940891] IPVS: stopping backup sync thread 4812 ... [ 31.943150] IPVS: stopping backup sync thread 4801 ... [ 31.946451] IPVS: stopping backup sync thread 4786 ... [ 31.952213] IPVS: stopping backup sync thread 4790 ... [ 31.960664] IPVS: stopping backup sync thread 4820 ... [ 31.972206] IPVS: stopping backup sync thread 4821 ... [ 31.981741] IPVS: stopping backup sync thread 4811 ... [ 31.993452] IPVS: stopping backup sync thread 4827 ... [ 32.002718] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.017245] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.027606] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.060092] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.072819] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.073423] IPVS: stopping backup sync thread 4850 ... [ 32.092787] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.120561] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.121346] IPVS: stopping backup sync thread 4831 ... [ 32.149464] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.150531] IPVS: stopping backup sync thread 4839 ... [ 32.158041] IPVS: stopping backup sync thread 4867 ... [ 32.166104] IPVS: stopping backup sync thread 4861 ... [ 32.169054] IPVS: stopping backup sync thread 4856 ... [ 32.179549] IPVS: stopping backup sync thread 4834 ... [ 32.188799] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.188826] IPVS: stopping backup sync thread 4875 ... [ 32.197403] IPVS: stopping backup sync thread 4845 ... [ 32.209652] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.230745] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.248713] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.255056] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.279867] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.291264] IPVS: stopping backup sync thread 4877 ... [ 32.303150] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.324939] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.344238] IPVS: stopping backup sync thread 4880 ... [ 32.355541] IPVS: stopping backup sync thread 4888 ... [ 32.355801] IPVS: stopping backup sync thread 4893 ... [ 32.361659] IPVS: stopping backup sync thread 4914 ... [ 32.366458] IPVS: stopping backup sync thread 4896 ... [ 32.373877] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.393261] IPVS: stopping backup sync thread 4903 ... [ 32.410136] IPVS: stopping backup sync thread 4897 ... [ 32.417555] IPVS: stopping backup sync thread 4929 ... [ 32.423877] IPVS: stopping backup sync thread 4920 ... [ 32.428656] IPVS: stopping backup sync thread 4932 ... [ 32.443232] IPVS: stopping backup sync thread 4936 ... [ 32.457563] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.468495] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.503093] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.534167] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.535327] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.545229] IPVS: stopping backup sync thread 4965 ... [ 32.568409] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.584214] IPVS: stopping backup sync thread 4941 ... [ 32.589796] IPVS: stopping backup sync thread 4949 ... [ 32.592094] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.595795] IPVS: stopping backup sync thread 4970 ... [ 32.606097] IPVS: stopping backup sync thread 4944 ... [ 32.609690] IPVS: stopping backup sync thread 4960 ... [ 32.620247] IPVS: stopping backup sync thread 4971 ... [ 32.620757] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.629551] IPVS: stopping backup sync thread 4966 ... [ 32.644828] IPVS: stopping backup sync thread 4979 ... [ 32.647132] IPVS: stopping backup sync thread 4986 ... [ 32.661488] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.670538] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.684327] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.692926] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.706203] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.734245] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.735553] IPVS: stopping backup sync thread 4990 ... [ 32.777321] IPVS: stopping backup sync thread 5012 ... [ 32.779753] IPVS: stopping backup sync thread 5001 ... [ 32.782886] IPVS: stopping backup sync thread 4995 ... [ 32.794889] IPVS: stopping backup sync thread 4993 ... [ 32.800175] IPVS: stopping backup sync thread 4992 ... [ 32.800215] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.802337] IPVS: stopping backup sync thread 5022 ... [ 32.819512] IPVS: stopping backup sync thread 4997 ... [ 32.830808] IPVS: stopping backup sync thread 5024 ... [ 32.838129] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.866411] IPVS: stopping backup sync thread 5030 ... [ 32.878598] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.891539] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.907338] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.930885] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.957705] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.958985] IPVS: stopping backup sync thread 5026 ... [ 32.972670] IPVS: stopping backup sync thread 5064 ... [ 32.989706] IPVS: stopping backup sync thread 5044 ... [ 32.991951] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 32.995726] IPVS: stopping backup sync thread 5047 ... [ 33.003922] IPVS: stopping backup sync thread 5066 ... [ 33.011865] IPVS: stopping backup sync thread 5054 ... [ 33.014889] IPVS: stopping backup sync thread 5049 ... [ 33.019718] IPVS: stopping backup sync thread 5046 ... [ 33.037435] IPVS: stopping backup sync thread 5072 ... [ 33.045472] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.061278] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.061310] IPVS: stopping backup sync thread 5080 ... [ 33.093684] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.109665] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.110474] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.129823] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.138462] IPVS: stopping backup sync thread 5075 ... [ 33.161161] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.195623] IPVS: stopping backup sync thread 5093 ... [ 33.196893] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.201991] IPVS: stopping backup sync thread 5105 ... [ 33.211542] IPVS: stopping backup sync thread 5091 ... [ 33.220371] IPVS: stopping backup sync thread 5095 ... [ 33.227279] IPVS: stopping backup sync thread 5119 ... [ 33.234161] IPVS: stopping backup sync thread 5096 ... [ 33.243198] IPVS: stopping backup sync thread 5120 ... [ 33.244440] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.251214] IPVS: stopping backup sync thread 5098 ... [ 33.263762] IPVS: stopping backup sync thread 5123 ... [ 33.272629] IPVS: stopping backup sync thread 5125 ... [ 33.284191] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.312107] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.334157] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.341985] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.380578] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.412777] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.421410] IPVS: stopping backup sync thread 5165 ... [ 33.421778] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.426868] IPVS: stopping backup sync thread 5159 ... [ 33.435336] IPVS: stopping backup sync thread 5130 ... [ 33.449137] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.451289] IPVS: stopping backup sync thread 5142 ... [ 33.457706] IPVS: stopping backup sync thread 5150 ... [ 33.463207] IPVS: stopping backup sync thread 5131 ... [ 33.470161] IPVS: stopping backup sync thread 5166 ... [ 33.473935] IPVS: stopping backup sync thread 5151 ... [ 33.483629] IPVS: stopping backup sync thread 5170 ... [ 33.490832] IPVS: stopping backup sync thread 5172 ... [ 33.498897] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.507682] IPVS: stopping backup sync thread 5179 ... [ 33.509243] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.521540] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.528716] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.530048] IPVS: stopping backup sync thread 5180 ... [ 33.538662] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.559014] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.611347] IPVS: stopping backup sync thread 5204 ... [ 33.612697] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.620258] IPVS: stopping backup sync thread 5208 ... [ 33.630871] IPVS: stopping backup sync thread 5175 ... [ 33.636176] IPVS: stopping backup sync thread 5186 ... [ 33.642514] IPVS: stopping backup sync thread 5185 ... [ 33.642634] IPVS: stopping backup sync thread 5184 ... [ 33.666973] IPVS: stopping backup sync thread 5213 ... [ 33.691670] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.708713] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.726863] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.744948] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.752359] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.754565] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.770332] IPVS: stopping backup sync thread 5215 ... [ 33.786747] IPVS: stopping backup sync thread 5247 ... [ 33.787154] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.806903] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.816421] IPVS: stopping backup sync thread 5220 ... [ 33.821965] IPVS: stopping backup sync thread 5232 ... [ 33.828089] IPVS: stopping backup sync thread 5257 ... [ 33.833488] IPVS: stopping backup sync thread 5236 ... [ 33.835807] IPVS: stopping backup sync thread 5234 ... [ 33.845664] IPVS: stopping backup sync thread 5237 ... [ 33.868196] IPVS: stopping backup sync thread 5260 ... [ 33.873359] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.888676] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.909959] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.915272] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.943983] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.959612] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.968275] IPVS: stopping backup sync thread 5251 ... [ 33.977477] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 33.983705] IPVS: stopping backup sync thread 5272 ... [ 33.988242] IPVS: stopping backup sync thread 5288 ... [ 33.999108] IPVS: stopping backup sync thread 5294 ... [ 34.016710] IPVS: stopping backup sync thread 5296 ... [ 34.016726] IPVS: stopping backup sync thread 5279 ... [ 34.033652] IPVS: stopping backup sync thread 5275 ... [ 34.037197] IPVS: stopping backup sync thread 5281 ... [ 34.045835] IPVS: stopping backup sync thread 5286 ... [ 34.061967] IPVS: stopping backup sync thread 5306 ... [ 34.070527] IPVS: stopping backup sync thread 5312 ... [ 34.078464] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.106682] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.115463] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.130386] IPVS: stopping backup sync thread 5328 ... [ 34.131059] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.153227] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.172809] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.181373] IPVS: stopping backup sync thread 5315 ... [ 34.204356] IPVS: stopping backup sync thread 5342 ... [ 34.205006] IPVS: stopping backup sync thread 5337 ... [ 34.218854] IPVS: stopping backup sync thread 5347 ... [ 34.225326] IPVS: stopping backup sync thread 5323 ... [ 34.237122] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.249580] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.264871] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.273979] IPVS: stopping backup sync thread 5320 ... [ 34.292937] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.311122] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.335247] IPVS: stopping backup sync thread 5351 ... [ 34.335536] IPVS: stopping backup sync thread 5330 ... [ 34.342465] IPVS: stopping backup sync thread 5357 ... [ 34.347830] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.357773] IPVS: stopping backup sync thread 5370 ... [ 34.361995] IPVS: stopping backup sync thread 5361 ... [ 34.375198] IPVS: stopping backup sync thread 5385 ... [ 34.379404] IPVS: stopping backup sync thread 5375 ... [ 34.393337] IPVS: stopping backup sync thread 5389 ... [ 34.402211] IPVS: stopping backup sync thread 5376 ... [ 34.418928] IPVS: stopping backup sync thread 5394 ... [ 34.426667] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.444702] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.464628] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.491097] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.511207] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.521942] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.530587] IPVS: stopping backup sync thread 5399 ... [ 34.537660] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.546301] IPVS: stopping backup sync thread 5431 ... [ 34.554259] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.555133] IPVS: stopping backup sync thread 5411 ... [ 34.565180] IPVS: stopping backup sync thread 5417 ... [ 34.568285] IPVS: stopping backup sync thread 5405 ... [ 34.580801] IPVS: stopping backup sync thread 5438 ... [ 34.594801] IPVS: stopping backup sync thread 5432 ... [ 34.606550] IPVS: stopping backup sync thread 5443 ... [ 34.619704] IPVS: stopping backup sync thread 5445 ... [ 34.621405] IPVS: stopping backup sync thread 5424 ... [ 34.631708] IPVS: stopping backup sync thread 5427 ... [ 34.670485] IPVS: stopping backup sync thread 5447 ... [ 34.671230] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.689189] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.692149] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.697789] IPVS: stopping backup sync thread 5467 ... [ 34.706648] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.730193] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.739136] IPVS: stopping backup sync thread 5469 ... [ 34.746155] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.763670] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.770073] IPVS: stopping backup sync thread 5465 ... [ 34.779711] IPVS: stopping backup sync thread 5468 ... [ 34.782526] IPVS: stopping backup sync thread 5479 ... [ 34.799112] IPVS: stopping backup sync thread 5478 ... [ 34.807349] IPVS: stopping backup sync thread 5490 ... [ 34.821779] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.830852] IPVS: stopping backup sync thread 5494 ... [ 34.836398] IPVS: stopping backup sync thread 5471 ... [ 34.837585] IPVS: stopping backup sync thread 5491 ... [ 34.864290] IPVS: stopping backup sync thread 5501 ... [ 34.876110] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.902391] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.922614] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.949618] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 34.965593] [ 34.967265] ============================================ [ 34.972713] WARNING: possible recursive locking detected [ 34.978154] 4.16.0+ #17 Not tainted [ 34.981765] -------------------------------------------- [ 34.987193] syz-executor6/5482 is trying to acquire lock: [ 34.992710] 00000000c16fd68e (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 34.999554] [ 34.999554] but task is already holding lock: [ 35.005513] 00000000c16fd68e (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 35.012356] [ 35.012356] other info that might help us debug this: [ 35.019034] Possible unsafe locking scenario: [ 35.019034] [ 35.025074] CPU0 [ 35.027635] ---- [ 35.030199] lock(rtnl_mutex); [ 35.033473] lock(rtnl_mutex); [ 35.036851] [ 35.036851] *** DEADLOCK *** [ 35.036851] [ 35.042903] May be due to missing lock nesting notation [ 35.042903] [ 35.049811] 2 locks held by syz-executor6/5482: [ 35.054467] #0: 00000000c16fd68e (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 35.061766] #1: 000000001b3e905d (ipvs->sync_mutex){+.+.}, at: do_ip_vs_set_ctl+0x562/0x1d30 [ 35.070443] [ 35.070443] stack backtrace: [ 35.074936] CPU: 1 PID: 5482 Comm: syz-executor6 Not tainted 4.16.0+ #17 [ 35.081764] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.091107] Call Trace: [ 35.093719] dump_stack+0x1b9/0x294 [ 35.097349] ? dump_stack_print_info.cold.2+0x52/0x52 [ 35.102532] ? print_lock+0xd1/0xd6 [ 35.106152] ? vprintk_func+0x81/0xe7 [ 35.109956] __lock_acquire.cold.62+0x18c/0x55b [ 35.114624] ? lock_downgrade+0x8e0/0x8e0 [ 35.118778] ? finish_task_switch+0x182/0x820 [ 35.123262] ? debug_check_no_locks_freed+0x310/0x310 [ 35.128446] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.132945] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.137973] ? trace_hardirqs_on+0xd/0x10 [ 35.142118] ? __lock_acquire+0x7f5/0x5130 [ 35.146358] ? copy_overflow+0x20/0x20 [ 35.150246] ? debug_check_no_locks_freed+0x310/0x310 [ 35.155432] ? __schedule+0x80f/0x1e40 [ 35.159335] ? graph_lock+0x170/0x170 [ 35.163133] ? kasan_check_read+0x11/0x20 [ 35.167278] ? graph_lock+0x170/0x170 [ 35.171070] ? graph_lock+0x170/0x170 [ 35.174863] lock_acquire+0x1dc/0x520 [ 35.178676] ? rtnl_lock+0x17/0x20 [ 35.182216] ? lock_release+0xa10/0xa10 [ 35.186187] ? check_same_owner+0x320/0x320 [ 35.190514] ? schedule+0xef/0x430 [ 35.194059] ? rcu_note_context_switch+0x710/0x710 [ 35.198975] ? __schedule+0x1e40/0x1e40 [ 35.202937] ? __might_sleep+0x95/0x190 [ 35.206906] ? rtnl_lock+0x17/0x20 [ 35.210444] __mutex_lock+0x16d/0x17f0 [ 35.214323] ? rtnl_lock+0x17/0x20 [ 35.217845] ? rtnl_lock+0x17/0x20 [ 35.221381] ? mutex_trylock+0x2a0/0x2a0 [ 35.225439] ? mark_held_locks+0xc9/0x160 [ 35.229570] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 35.234141] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.238625] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 35.243635] ? trace_hardirqs_on+0xd/0x10 [ 35.247778] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.252262] ? wait_for_completion_killable+0x56c/0x960 [ 35.257623] ? wait_for_completion_interruptible_timeout+0x960/0x960 [ 35.264116] ? lock_downgrade+0x8e0/0x8e0 [ 35.268258] ? kasan_check_read+0x11/0x20 [ 35.272395] ? do_raw_spin_unlock+0x9e/0x2e0 [ 35.276800] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 35.281372] ? wake_up_q+0x100/0x100 [ 35.285073] ? kasan_check_write+0x14/0x20 [ 35.289299] ? do_raw_spin_lock+0xc1/0x200 [ 35.293542] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 35.299078] ? __kthread_create_on_node+0x34f/0x4c0 [ 35.304084] ? __kthread_parkme+0x280/0x280 [ 35.308577] ? kasan_check_read+0x11/0x20 [ 35.312718] ? do_raw_spin_unlock+0x9e/0x2e0 [ 35.317108] ? __lock_is_held+0xb5/0x140 [ 35.321155] mutex_lock_nested+0x16/0x20 [ 35.325201] ? mutex_lock_nested+0x16/0x20 [ 35.329418] rtnl_lock+0x17/0x20 [ 35.332770] ip_mc_drop_socket+0x8f/0x270 [ 35.336904] inet_release+0x4e/0x1f0 [ 35.340607] sock_release+0x96/0x1b0 [ 35.344314] start_sync_thread+0xdc3/0x2d40 [ 35.348629] ? ip_vs_process_message+0xa0a/0xa0a [ 35.353370] ? ip_vs_sync_conn+0x33a0/0x33a0 [ 35.357762] ? graph_lock+0x170/0x170 [ 35.361545] ? lock_downgrade+0x8e0/0x8e0 [ 35.365685] ? kasan_check_read+0x11/0x20 [ 35.369825] ? do_raw_spin_unlock+0x9e/0x2e0 [ 35.374228] ? find_held_lock+0x36/0x1c0 [ 35.378293] ? lock_downgrade+0x8e0/0x8e0 [ 35.382448] ? __release_sock+0x3a0/0x3a0 [ 35.386597] ? lock_release+0xa10/0xa10 [ 35.390558] ? check_same_owner+0x320/0x320 [ 35.394875] ? module_unload_free+0x5b0/0x5b0 [ 35.399357] do_ip_vs_set_ctl+0x59c/0x1d30 [ 35.403585] ? ip_vs_genl_set_cmd+0xe80/0xe80 [ 35.408066] ? lock_downgrade+0x8e0/0x8e0 [ 35.412221] ? lock_downgrade+0x8e0/0x8e0 [ 35.416375] ? rcu_is_watching+0x85/0x140 [ 35.420520] ? kasan_check_read+0x11/0x20 [ 35.424663] ? rcu_is_watching+0x85/0x140 [ 35.428805] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 35.433979] ? kasan_check_write+0x14/0x20 [ 35.438203] ? __mutex_unlock_slowpath+0x180/0x8a0 [ 35.443118] ? wait_for_completion+0x870/0x870 [ 35.447687] ? module_unload_free+0x5b0/0x5b0 [ 35.452176] ? expand_files.part.8+0x9a0/0x9a0 [ 35.456786] ? mark_held_locks+0xc9/0x160 [ 35.460938] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 35.465512] ? _raw_spin_unlock_irqrestore+0x74/0xc0 [ 35.470612] nf_setsockopt+0x7d/0xd0 [ 35.474322] ? ip_vs_genl_set_cmd+0xe80/0xe80 [ 35.478799] ? nf_setsockopt+0x7d/0xd0 [ 35.482671] ip_setsockopt+0xd8/0xf0 [ 35.486389] udp_setsockopt+0x62/0xa0 [ 35.490178] ipv6_setsockopt+0x149/0x170 [ 35.494222] udpv6_setsockopt+0x62/0xa0 [ 35.498207] sock_common_setsockopt+0x9a/0xe0 [ 35.502697] __sys_setsockopt+0x1bd/0x390 [ 35.506837] ? kernel_accept+0x310/0x310 [ 35.510899] ? do_futex+0x27d0/0x27d0 [ 35.514693] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 35.519522] SyS_setsockopt+0x34/0x50 [ 35.523308] ? SyS_recv+0x40/0x40 [ 35.526756] do_syscall_64+0x29e/0x9d0 [ 35.530632] ? vmalloc_sync_all+0x30/0x30 [ 35.534763] ? _raw_spin_unlock_irq+0x27/0x70 [ 35.539261] ? finish_task_switch+0x1ca/0x820 [ 35.543745] ? syscall_return_slowpath+0x5c0/0x5c0 [ 35.548662] ? syscall_return_slowpath+0x30f/0x5c0 [ 35.553574] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 35.558923] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.563752] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 35.568925] RIP: 0033:0x455279 [ 35.572095] RSP: 002b:00007fabb055fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 [ 35.579785] RAX: ffffffffffffffda RBX: 00007fabb05606d4 RCX: 0000000000455279 [ 35.587042] RDX: 000000000000048b RSI: 0000000000000000 RDI: 0000000000000008 [ 35.594308] RBP: 000000000072bea0 R08: 0000000000000018 R09: 0000000000000000 [ 35.601568] R10: 0000000020000100 R11: 0000000000000246 R12: 00000000ffffffff [ 35.608833] R13: 0000000000000520 R14: 00000000006faba0 R15: 0000000000000000 [ 35.719327] IPVS: stopping backup sync thread 5513 ... [ 35.721554] IPVS: stopping backup sync thread 5514 ... [ 35.762129] IPVS: stopping backup sync thread 5518 ... [ 35.767738] IPVS: stopping backup sync thread 5524 ...