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 Warning: Permanently added '10.128.0.27' (ECDSA) to the list of known hosts. 2018/04/11 20:04:49 parsed 1 programs 2018/04/11 20:04:49 executed programs: 0 syzkaller login: [ 27.889799] IPVS: ftp: loaded support on port[0] = 21 [ 27.923540] IPVS: ftp: loaded support on port[0] = 21 [ 27.958489] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.967253] IPVS: stopping backup sync thread 4505 ... [ 27.972280] IPVS: ftp: loaded support on port[0] = 21 [ 27.984730] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.993799] IPVS: stopping backup sync thread 4511 ... [ 28.015662] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.027150] IPVS: stopping backup sync thread 4507 ... [ 28.046234] IPVS: stopping backup sync thread 4517 ... [ 28.053802] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.067612] IPVS: ftp: loaded support on port[0] = 21 [ 28.080185] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.092136] IPVS: stopping backup sync thread 4523 ... [ 28.105290] IPVS: stopping backup sync thread 4532 ... [ 28.109102] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.124797] IPVS: stopping backup sync thread 4530 ... [ 28.131213] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.141765] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.158484] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.182504] IPVS: stopping backup sync thread 4540 ... [ 28.182516] IPVS: stopping backup sync thread 4538 ... [ 28.189363] IPVS: stopping backup sync thread 4543 ... [ 28.203185] IPVS: ftp: loaded support on port[0] = 21 [ 28.222155] IPVS: stopping backup sync thread 4557 ... [ 28.232755] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.242556] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.243006] IPVS: stopping backup sync thread 4563 ... [ 28.257284] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.298266] IPVS: stopping backup sync thread 4575 ... [ 28.298475] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.307151] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.312163] IPVS: stopping backup sync thread 4561 ... [ 28.329180] IPVS: ftp: loaded support on port[0] = 21 [ 28.342494] IPVS: stopping backup sync thread 4578 ... [ 28.354118] IPVS: stopping backup sync thread 4582 ... [ 28.404435] IPVS: stopping backup sync thread 4588 ... [ 28.408293] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.412934] IPVS: ftp: loaded support on port[0] = 21 [ 28.441597] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.448288] IPVS: stopping backup sync thread 4593 ... [ 28.457923] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.469386] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.477128] IPVS: stopping backup sync thread 4598 ... [ 28.488620] IPVS: ftp: loaded support on port[0] = 21 [ 28.506169] IPVS: stopping backup sync thread 4603 ... [ 28.528076] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.564234] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.569237] IPVS: stopping backup sync thread 4612 ... [ 28.580245] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.580270] IPVS: stopping backup sync thread 4614 ... [ 28.625000] IPVS: stopping backup sync thread 4622 ... [ 28.628567] IPVS: stopping backup sync thread 4632 ... [ 28.630601] IPVS: stopping backup sync thread 4595 ... [ 28.643750] IPVS: stopping backup sync thread 4634 ... [ 28.646773] IPVS: stopping backup sync thread 4637 ... [ 28.650367] IPVS: stopping backup sync thread 4607 ... [ 28.654567] IPVS: stopping backup sync thread 4576 ... [ 28.660742] IPVS: stopping backup sync thread 4565 ... [ 28.667094] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.671782] IPVS: stopping backup sync thread 4639 ... [ 28.684545] IPVS: stopping backup sync thread 4643 ... [ 28.688066] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.692220] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.712339] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.718539] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.734777] IPVS: stopping backup sync thread 4656 ... [ 28.740318] IPVS: stopping backup sync thread 4646 ... [ 28.768539] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.783096] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.803850] IPVS: stopping backup sync thread 4650 ... [ 28.809455] IPVS: stopping backup sync thread 4674 ... [ 28.815392] IPVS: stopping backup sync thread 4647 ... [ 28.837274] IPVS: stopping backup sync thread 4684 ... [ 28.837917] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.844646] IPVS: stopping backup sync thread 4673 ... [ 28.859374] IPVS: stopping backup sync thread 4661 ... [ 28.870235] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.873467] IPVS: stopping backup sync thread 4695 ... [ 28.891694] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.901533] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.921047] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.932880] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.948866] IPVS: stopping backup sync thread 4692 ... [ 28.955138] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.961823] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.973296] IPVS: stopping backup sync thread 4698 ... [ 28.985899] IPVS: stopping backup sync thread 4721 ... [ 28.996152] IPVS: stopping backup sync thread 4730 ... [ 29.001856] IPVS: stopping backup sync thread 4704 ... [ 29.013493] IPVS: stopping backup sync thread 4737 ... [ 29.018996] IPVS: stopping backup sync thread 4720 ... [ 29.019311] IPVS: stopping backup sync thread 4716 ... [ 29.024898] IPVS: stopping backup sync thread 4707 ... [ 29.038056] IPVS: stopping backup sync thread 4712 ... [ 29.038844] IPVS: stopping backup sync thread 4739 ... [ 29.084210] IPVS: stopping backup sync thread 4744 ... [ 29.098257] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.115311] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.123958] IPVS: stopping backup sync thread 4760 ... [ 29.132954] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.132987] IPVS: stopping backup sync thread 4766 ... [ 29.148611] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.151415] IPVS: stopping backup sync thread 4768 ... [ 29.166436] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.167620] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.185073] IPVS: stopping backup sync thread 4755 ... [ 29.196204] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.204847] IPVS: stopping backup sync thread 4774 ... [ 29.217589] IPVS: stopping backup sync thread 4780 ... [ 29.220915] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.231348] IPVS: stopping backup sync thread 4786 ... [ 29.240444] IPVS: stopping backup sync thread 4769 ... [ 29.246345] IPVS: stopping backup sync thread 4773 ... [ 29.254207] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.254210] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.278251] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.285949] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.307129] IPVS: stopping backup sync thread 4809 ... [ 29.317728] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.331898] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.350453] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.350829] IPVS: stopping backup sync thread 4818 ... [ 29.365352] IPVS: stopping backup sync thread 4793 ... [ 29.371717] IPVS: stopping backup sync thread 4801 ... [ 29.377301] IPVS: stopping backup sync thread 4790 ... [ 29.377907] IPVS: stopping backup sync thread 4814 ... [ 29.383007] IPVS: stopping backup sync thread 4789 ... [ 29.405896] IPVS: stopping backup sync thread 4834 ... [ 29.417339] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.422713] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.437047] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.445499] IPVS: stopping backup sync thread 4817 ... [ 29.449562] IPVS: stopping backup sync thread 4835 ... [ 29.461883] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.490792] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.508196] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.526128] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.526202] IPVS: stopping backup sync thread 4842 ... [ 29.534763] IPVS: stopping backup sync thread 4853 ... [ 29.540205] IPVS: stopping backup sync thread 4840 ... [ 29.550819] IPVS: stopping backup sync thread 4848 ... [ 29.563111] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.578260] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.604225] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.612765] IPVS: stopping backup sync thread 4858 ... [ 29.632932] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.643560] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.654500] IPVS: stopping backup sync thread 4869 ... [ 29.659990] IPVS: stopping backup sync thread 4865 ... [ 29.666479] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.682589] IPVS: stopping backup sync thread 4880 ... [ 29.686801] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.688162] IPVS: stopping backup sync thread 4875 ... [ 29.699635] IPVS: stopping backup sync thread 4892 ... [ 29.717802] IPVS: stopping backup sync thread 4912 ... [ 29.726732] IPVS: stopping backup sync thread 4918 ... [ 29.735177] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.735267] IPVS: stopping backup sync thread 4901 ... [ 29.753400] IPVS: stopping backup sync thread 4900 ... [ 29.755614] IPVS: stopping backup sync thread 4896 ... [ 29.773950] IPVS: stopping backup sync thread 4923 ... [ 29.789463] IPVS: stopping backup sync thread 4931 ... [ 29.795118] IPVS: stopping backup sync thread 4933 ... [ 29.797475] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.811335] IPVS: stopping backup sync thread 4920 ... [ 29.819634] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.837280] IPVS: stopping backup sync thread 4942 ... [ 29.838124] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.856927] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.872458] IPVS: stopping backup sync thread 4952 ... [ 29.880210] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.882232] IPVS: stopping backup sync thread 4958 ... [ 29.900732] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.904691] IPVS: stopping backup sync thread 4945 ... [ 29.914620] IPVS: stopping backup sync thread 4936 ... [ 29.920507] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.939567] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.954993] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.969142] IPVS: stopping backup sync thread 4971 ... [ 29.983181] IPVS: stopping backup sync thread 4968 ... [ 29.989891] IPVS: stopping backup sync thread 4984 ... [ 29.995733] IPVS: stopping backup sync thread 4960 ... [ 30.003659] IPVS: stopping backup sync thread 4986 ... [ 30.007597] IPVS: stopping backup sync thread 4967 ... [ 30.009120] IPVS: stopping backup sync thread 4988 ... [ 30.015225] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.028550] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.035462] IPVS: stopping backup sync thread 4992 ... [ 30.050116] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.074301] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.090303] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.101216] IPVS: stopping backup sync thread 4989 ... [ 30.128578] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.135634] IPVS: stopping backup sync thread 5021 ... [ 30.137147] IPVS: stopping backup sync thread 5009 ... [ 30.148451] IPVS: stopping backup sync thread 5001 ... [ 30.149500] IPVS: stopping backup sync thread 4995 ... [ 30.154044] IPVS: stopping backup sync thread 5024 ... [ 30.170509] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.170548] IPVS: stopping backup sync thread 5028 ... [ 30.181158] IPVS: stopping backup sync thread 5007 ... [ 30.191985] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.194309] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.212762] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.226868] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.234638] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.239579] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.254938] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.271668] IPVS: stopping backup sync thread 5042 ... [ 30.290943] IPVS: stopping backup sync thread 5031 ... [ 30.309307] IPVS: stopping backup sync thread 5036 ... [ 30.310953] IPVS: stopping backup sync thread 5049 ... [ 30.331849] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.331916] IPVS: stopping backup sync thread 5072 ... [ 30.352483] IPVS: stopping backup sync thread 5033 ... [ 30.353599] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.359437] IPVS: stopping backup sync thread 5050 ... [ 30.371687] IPVS: stopping backup sync thread 5045 ... [ 30.385078] IPVS: stopping backup sync thread 5080 ... [ 30.392677] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.403580] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.420957] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.444262] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.467929] IPVS: stopping backup sync thread 5076 ... [ 30.475448] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.492366] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.512727] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.516202] IPVS: stopping backup sync thread 5115 ... [ 30.527288] IPVS: stopping backup sync thread 5085 ... [ 30.528188] IPVS: stopping backup sync thread 5098 ... [ 30.534294] IPVS: stopping backup sync thread 5111 ... [ 30.538230] IPVS: stopping backup sync thread 5086 ... [ 30.549176] IPVS: stopping backup sync thread 5126 ... [ 30.550889] IPVS: stopping backup sync thread 5106 ... [ 30.567797] IPVS: stopping backup sync thread 5129 ... [ 30.575776] IPVS: stopping backup sync thread 5100 ... [ 30.591762] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.606479] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.615151] IPVS: stopping backup sync thread 5147 ... [ 30.615531] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.627027] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.646168] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.663710] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.669835] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.684368] IPVS: stopping backup sync thread 5132 ... [ 30.689492] IPVS: stopping backup sync thread 5150 ... [ 30.693141] IPVS: stopping backup sync thread 5162 ... [ 30.703955] IPVS: stopping backup sync thread 5137 ... [ 30.718578] IPVS: stopping backup sync thread 5161 ... [ 30.735107] IPVS: stopping backup sync thread 5170 ... [ 30.742855] IPVS: stopping backup sync thread 5154 ... [ 30.748647] IPVS: stopping backup sync thread 5179 ... [ 30.755680] IPVS: stopping backup sync thread 5152 ... [ 30.764192] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.781673] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.787050] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.803236] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.839711] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.848218] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.848297] IPVS: stopping backup sync thread 5209 ... [ 30.874569] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.875306] IPVS: stopping backup sync thread 5210 ... [ 30.890360] IPVS: stopping backup sync thread 5183 ... [ 30.890889] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.896252] IPVS: stopping backup sync thread 5192 ... [ 30.909509] IPVS: stopping backup sync thread 5185 ... [ 30.917102] IPVS: stopping backup sync thread 5189 ... [ 30.917699] IPVS: stopping backup sync thread 5218 ... [ 30.926783] IPVS: stopping backup sync thread 5199 ... [ 30.935600] IPVS: stopping backup sync thread 5221 ... [ 30.948618] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.977913] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.987509] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.004928] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.006254] IPVS: stopping backup sync thread 5213 ... [ 31.021552] IPVS: stopping backup sync thread 5244 ... [ 31.033426] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.046845] IPVS: stopping backup sync thread 5226 ... [ 31.048219] IPVS: stopping backup sync thread 5241 ... [ 31.063410] IPVS: stopping backup sync thread 5230 ... [ 31.071551] IPVS: stopping backup sync thread 5257 ... [ 31.078740] IPVS: stopping backup sync thread 5238 ... [ 31.082691] IPVS: stopping backup sync thread 5261 ... [ 31.104081] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.124839] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.129473] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.135191] IPVS: stopping backup sync thread 5279 ... [ 31.149128] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.165993] IPVS: stopping backup sync thread 5285 ... [ 31.183119] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.200988] [ 31.202639] ============================================ [ 31.208070] WARNING: possible recursive locking detected [ 31.213495] 4.16.0+ #288 Not tainted [ 31.217180] -------------------------------------------- [ 31.222600] syz-executor6/5250 is trying to acquire lock: [ 31.228107] 0000000010696d6a (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 31.234929] [ 31.234929] but task is already holding lock: [ 31.240872] 0000000010696d6a (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 31.247693] [ 31.247693] other info that might help us debug this: [ 31.254339] Possible unsafe locking scenario: [ 31.254339] [ 31.260367] CPU0 [ 31.262923] ---- [ 31.265478] lock(rtnl_mutex); [ 31.268738] lock(rtnl_mutex); [ 31.271998] [ 31.271998] *** DEADLOCK *** [ 31.271998] [ 31.278038] May be due to missing lock nesting notation [ 31.278038] [ 31.284943] 2 locks held by syz-executor6/5250: [ 31.289590] #0: 0000000010696d6a (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 31.296844] #1: 00000000aa6ada71 (ipvs->sync_mutex){+.+.}, at: do_ip_vs_set_ctl+0x10f8/0x1cc0 [ 31.305579] [ 31.305579] stack backtrace: [ 31.310055] CPU: 0 PID: 5250 Comm: syz-executor6 Not tainted 4.16.0+ #288 [ 31.316950] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 31.326274] Call Trace: [ 31.328841] dump_stack+0x1a7/0x27d [ 31.332443] ? arch_local_irq_restore+0x53/0x53 [ 31.337084] ? print_lock+0xd7/0xdc [ 31.340685] __lock_acquire+0xf03/0x3c30 [ 31.344726] ? lock_release+0xa40/0xa40 [ 31.348686] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.353860] ? account_kernel_stack+0x25e/0x3d0 [ 31.358502] ? __lock_acquire+0x638/0x3c30 [ 31.362716] ? finish_task_switch+0x5c8/0x970 [ 31.367183] ? copy_overflow+0x20/0x20 [ 31.371052] ? debug_check_no_locks_freed+0x3c0/0x3c0 [ 31.376224] ? __schedule+0x903/0x1ef0 [ 31.380086] ? __sched_text_start+0x8/0x8 [ 31.384214] ? trace_hardirqs_off+0x10/0x10 [ 31.388528] ? trace_hardirqs_off+0x10/0x10 [ 31.392827] ? trace_hardirqs_off+0x10/0x10 [ 31.397120] ? trace_hardirqs_off+0x10/0x10 [ 31.401414] ? dequeue_task_fair+0x9b0/0x9b0 [ 31.405798] lock_acquire+0x1d5/0x580 [ 31.409580] ? lock_acquire+0x1d5/0x580 [ 31.413543] ? rtnl_lock+0x17/0x20 [ 31.417058] ? lock_release+0xa40/0xa40 [ 31.421005] ? check_same_owner+0x320/0x320 [ 31.425306] ? rcu_note_context_switch+0x710/0x710 [ 31.430218] ? __might_sleep+0x95/0x190 [ 31.434166] ? rtnl_lock+0x17/0x20 [ 31.437697] __mutex_lock+0x16d/0x1810 [ 31.441559] ? rtnl_lock+0x17/0x20 [ 31.445076] ? wait_for_completion_killable+0x63e/0x820 [ 31.450419] ? rtnl_lock+0x17/0x20 [ 31.453938] ? lock_downgrade+0x980/0x980 [ 31.458060] ? lock_release+0xa40/0xa40 [ 31.462011] ? mutex_lock_io_nested+0x16c0/0x16c0 [ 31.466832] ? mark_held_locks+0xaf/0x100 [ 31.470953] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.475422] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 31.480410] ? trace_hardirqs_on+0xd/0x10 [ 31.484532] ? _raw_spin_unlock_irq+0x27/0x70 [ 31.489000] ? wait_for_completion_killable+0x63e/0x820 [ 31.494345] ? wait_for_completion_interruptible_timeout+0x820/0x820 [ 31.500817] ? lock_downgrade+0x980/0x980 [ 31.504944] ? lock_release+0xa40/0xa40 [ 31.508892] ? kasan_check_read+0x11/0x20 [ 31.513016] ? do_raw_spin_unlock+0x9e/0x310 [ 31.517401] ? do_raw_spin_trylock+0x1a0/0x1a0 [ 31.521963] ? wake_up_q+0xf0/0xf0 [ 31.525476] ? kasan_check_write+0x14/0x20 [ 31.529681] ? do_raw_spin_lock+0xc1/0x230 [ 31.533904] ? __kthread_create_on_node+0x36e/0x480 [ 31.538905] ? print_irqtrace_events+0x270/0x270 [ 31.543635] ? kthread_park+0x130/0x130 [ 31.547584] ? lock_release+0xa40/0xa40 [ 31.551534] ? __lock_is_held+0xb6/0x140 [ 31.555571] mutex_lock_nested+0x16/0x20 [ 31.559607] ? mutex_lock_nested+0x16/0x20 [ 31.563821] rtnl_lock+0x17/0x20 [ 31.567177] ip_mc_drop_socket+0x8f/0x240 [ 31.571297] inet_release+0x4e/0x1c0 [ 31.574984] sock_release+0x8d/0x1e0 [ 31.578681] start_sync_thread+0x2213/0x2b70 [ 31.583090] ? ip_vs_process_message_v0+0x870/0x870 [ 31.588098] ? ip_vs_sync_conn+0x3980/0x3980 [ 31.592478] ? find_held_lock+0x35/0x1d0 [ 31.596512] ? trace_hardirqs_off+0x10/0x10 [ 31.600804] ? lock_downgrade+0x980/0x980 [ 31.604924] ? lock_downgrade+0x980/0x980 [ 31.609059] ? kasan_check_read+0x11/0x20 [ 31.613180] ? do_raw_spin_unlock+0x9e/0x310 [ 31.617571] ? find_held_lock+0x35/0x1d0 [ 31.621618] ? __might_fault+0x110/0x1d0 [ 31.625661] ? __release_sock+0x360/0x360 [ 31.629798] ? lock_release+0xa40/0xa40 [ 31.633749] ? check_same_owner+0x320/0x320 [ 31.638047] ? module_unload_free+0x530/0x530 [ 31.642516] ? __might_sleep+0x95/0x190 [ 31.646477] do_ip_vs_set_ctl+0x1139/0x1cc0 [ 31.650784] ? do_ip_vs_set_ctl+0x1139/0x1cc0 [ 31.655257] ? smp_call_function_single+0x3ae/0x560 [ 31.660257] ? SyS_membarrier+0x800/0x800 [ 31.664381] ? ip_vs_genl_dump_services+0x440/0x440 [ 31.669380] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 31.674637] ? lock_downgrade+0x980/0x980 [ 31.678757] ? do_futex+0x86f/0x22a0 [ 31.682452] ? trace_hardirqs_off+0x10/0x10 [ 31.686762] ? rcu_is_watching+0x85/0x130 [ 31.690897] ? __lock_is_held+0xb6/0x140 [ 31.694933] ? exit_robust_list+0x240/0x240 [ 31.699238] ? kasan_check_write+0x14/0x20 [ 31.703449] ? __mutex_unlock_slowpath+0x181/0x7e0 [ 31.708350] ? wait_for_completion+0x770/0x770 [ 31.712904] ? __fget+0x347/0x580 [ 31.716345] ? module_unload_free+0x530/0x530 [ 31.720818] ? lock_downgrade+0x980/0x980 [ 31.724950] ? kasan_check_read+0x11/0x20 [ 31.729080] ? rcu_is_watching+0x85/0x130 [ 31.733217] compat_nf_setsockopt+0xfa/0x130 [ 31.737601] ? compat_nf_setsockopt+0xfa/0x130 [ 31.742170] compat_ip_setsockopt+0x8b/0xd0 [ 31.746470] compat_udp_setsockopt+0x45/0x80 [ 31.750851] ? udp_lib_unhash+0x950/0x950 [ 31.754983] compat_ipv6_setsockopt+0xb3/0x1c0 [ 31.759542] compat_udpv6_setsockopt+0x45/0x80 [ 31.764097] compat_sock_common_setsockopt+0xb2/0x140 [ 31.769261] ? udpv6_destroy_sock+0x190/0x190 [ 31.773729] ? sock_common_setsockopt+0xd0/0xd0 [ 31.778378] __compat_sys_setsockopt+0x183/0x710 [ 31.783111] ? __compat_sys_getsockopt+0x770/0x770 [ 31.788020] ? compat_SyS_get_robust_list+0x300/0x300 [ 31.793186] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 31.798709] compat_SyS_setsockopt+0x34/0x50 [ 31.803099] ? scm_detach_fds_compat+0x3d0/0x3d0 [ 31.807831] do_fast_syscall_32+0x3ec/0xf9f [ 31.812133] ? do_int80_syscall_32+0x9c0/0x9c0 [ 31.816699] ? finish_task_switch+0x1b9/0x970 [ 31.821175] ? finish_task_switch+0x17a/0x970 [ 31.825644] ? syscall_return_slowpath+0x2ac/0x550 [ 31.830551] ? prepare_exit_to_usermode+0x350/0x350 [ 31.835555] ? sysret32_from_system_call+0x5/0x3c [ 31.840372] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 31.845188] entry_SYSENTER_compat+0x70/0x7f [ 31.849569] RIP: 0023:0xf7f82c99 [ 31.852904] RSP: 002b:00000000f7f7e0ac EFLAGS: 00000282 ORIG_RAX: 000000000000016e [ 31.860586] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 0000000000000000 [ 31.867830] RDX: 000000000000048b RSI: 0000000020000100 RDI: 0000000000000018 [ 31.875074] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 31.882326] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 31.889570] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 31.904131] IPVS: stopping backup sync thread 5247 ... [ 31.958206] IPVS: stopping backup sync thread 5275 ... [ 31.963700] IPVS: stopping backup sync thread 5265 ... [ 31.981344] IPVS: stopping backup sync thread 5281 ... [ 32.004214] IPVS: stopping backup sync thread 5290 ...