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 '10.128.10.40' (ECDSA) to the list of known hosts. syzkaller login: [ 29.827231] IPVS: ftp: loaded support on port[0] = 21 [ 29.831447] IPVS: ftp: loaded support on port[0] = 21 [ 29.840945] IPVS: ftp: loaded support on port[0] = 21 [ 29.841140] IPVS: ftp: loaded support on port[0] = 21 [ 29.846569] IPVS: ftp: loaded support on port[0] = 21 [ 29.853869] IPVS: ftp: loaded support on port[0] = 21 [ 29.857330] IPVS: ftp: loaded support on port[0] = 21 [ 29.862393] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program [ 30.013248] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.013458] IPVS: stopping backup sync thread 4528 ... [ 30.024249] IPVS: stopping backup sync thread 4531 ... [ 30.033585] IPVS: stopping backup sync thread 4533 ... [ 30.036262] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.041800] IPVS: stopping backup sync thread 4535 ... [ 30.053343] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program [ 30.053688] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.066207] IPVS: stopping backup sync thread 4539 ... [ 30.073927] IPVS: stopping backup sync thread 4537 ... [ 30.080744] IPVS: stopping backup sync thread 4540 ... [ 30.081417] IPVS: stopping backup sync thread 4538 ... [ 30.100198] IPVS: stopping backup sync thread 4549 ... [ 30.101331] IPVS: stopping backup sync thread 4548 ... executing program executing program executing program executing program executing program [ 30.114762] IPVS: stopping backup sync thread 4553 ... [ 30.120865] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.122379] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.132688] IPVS: stopping backup sync thread 4556 ... [ 30.142465] IPVS: stopping backup sync thread 4558 ... [ 30.152856] IPVS: stopping backup sync thread 4557 ... executing program executing program executing program executing program [ 30.161286] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.161876] IPVS: stopping backup sync thread 4566 ... [ 30.179893] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.180331] IPVS: stopping backup sync thread 4569 ... [ 30.191467] IPVS: stopping backup sync thread 4573 ... [ 30.198735] IPVS: stopping backup sync thread 4577 ... [ 30.205565] IPVS: stopping backup sync thread 4579 ... executing program executing program executing program executing program executing program executing program executing program [ 30.211860] IPVS: stopping backup sync thread 4581 ... [ 30.217422] IPVS: stopping backup sync thread 4582 ... [ 30.224326] IPVS: stopping backup sync thread 4584 ... [ 30.229376] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.233880] IPVS: stopping backup sync thread 4587 ... [ 30.252170] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program [ 30.252519] IPVS: stopping backup sync thread 4597 ... [ 30.266354] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.266872] IPVS: stopping backup sync thread 4599 ... [ 30.275768] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.288226] IPVS: stopping backup sync thread 4606 ... [ 30.292119] IPVS: stopping backup sync thread 4601 ... [ 30.303893] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program executing program [ 30.305139] IPVS: stopping backup sync thread 4607 ... [ 30.312639] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.318679] IPVS: stopping backup sync thread 4608 ... [ 30.337661] IPVS: stopping backup sync thread 4616 ... [ 30.338995] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.351247] IPVS: stopping backup sync thread 4621 ... [ 30.358530] IPVS: stopping backup sync thread 4623 ... executing program executing program executing program executing program executing program [ 30.363269] IPVS: stopping backup sync thread 4624 ... [ 30.366322] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.372261] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.377931] IPVS: stopping backup sync thread 4625 ... [ 30.389904] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.393213] IPVS: stopping backup sync thread 4627 ... [ 30.410717] IPVS: stopping backup sync thread 4633 ... executing program executing program executing program executing program [ 30.420696] IPVS: stopping backup sync thread 4637 ... [ 30.424678] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.433988] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.437593] IPVS: stopping backup sync thread 4644 ... [ 30.447127] IPVS: stopping backup sync thread 4645 ... [ 30.448492] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.454647] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.469131] IPVS: stopping backup sync thread 4648 ... [ 30.470660] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.476837] IPVS: stopping backup sync thread 4654 ... [ 30.486567] IPVS: stopping backup sync thread 4649 ... [ 30.490479] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.495877] IPVS: stopping backup sync thread 4656 ... [ 30.506403] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program executing program executing program executing program [ 30.509638] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.523497] IPVS: stopping backup sync thread 4658 ... [ 30.546134] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.550118] IPVS: stopping backup sync thread 4671 ... [ 30.555442] IPVS: stopping backup sync thread 4669 ... executing program executing program executing program [ 30.568215] IPVS: stopping backup sync thread 4676 ... [ 30.570292] IPVS: stopping backup sync thread 4678 ... [ 30.581546] IPVS: stopping backup sync thread 4679 ... [ 30.583145] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.589791] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.595817] IPVS: stopping backup sync thread 4680 ... [ 30.609103] IPVS: stopping backup sync thread 4681 ... [ 30.617196] IPVS: stopping backup sync thread 4685 ... executing program [ 30.620870] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.624842] IPVS: stopping backup sync thread 4689 ... [ 30.635822] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.638987] IPVS: stopping backup sync thread 4691 ... [ 30.644777] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.651094] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.661621] IPVS: stopping backup sync thread 4694 ... executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 30.672916] IPVS: stopping backup sync thread 4695 ... [ 30.682502] IPVS: stopping backup sync thread 4699 ... [ 30.686800] IPVS: stopping backup sync thread 4703 ... [ 30.696634] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.697179] IPVS: stopping backup sync thread 4706 ... [ 30.713769] IPVS: stopping backup sync thread 4712 ... executing program executing program executing program executing program [ 30.727936] IPVS: stopping backup sync thread 4716 ... [ 30.732781] IPVS: stopping backup sync thread 4720 ... [ 30.736898] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.747097] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.747569] IPVS: stopping backup sync thread 4722 ... [ 30.761595] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.764581] IPVS: stopping backup sync thread 4729 ... executing program executing program executing program executing program executing program [ 30.772652] IPVS: stopping backup sync thread 4725 ... [ 30.779634] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.784739] IPVS: stopping backup sync thread 4736 ... [ 30.792246] IPVS: stopping backup sync thread 4732 ... [ 30.795746] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.809948] IPVS: stopping backup sync thread 4741 ... [ 30.812282] IPVS: stopping backup sync thread 4737 ... executing program executing program executing program executing program [ 30.830135] IPVS: stopping backup sync thread 4750 ... [ 30.837129] IPVS: stopping backup sync thread 4754 ... [ 30.838887] IPVS: stopping backup sync thread 4756 ... [ 30.845880] IPVS: stopping backup sync thread 4758 ... [ 30.853143] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.860559] IPVS: stopping backup sync thread 4762 ... [ 30.862187] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 30.876464] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.878318] IPVS: stopping backup sync thread 4763 ... [ 30.889853] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.892731] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.900713] IPVS: stopping backup sync thread 4772 ... [ 30.907130] IPVS: stopping backup sync thread 4767 ... [ 30.918222] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program [ 30.928599] IPVS: stopping backup sync thread 4777 ... [ 30.930110] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.934542] IPVS: stopping backup sync thread 4779 ... [ 30.944871] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.948746] IPVS: stopping backup sync thread 4773 ... [ 30.960958] IPVS: stopping backup sync thread 4781 ... [ 30.973381] IPVS: stopping backup sync thread 4787 ... executing program executing program executing program executing program executing program [ 30.974957] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.987499] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 30.990821] IPVS: stopping backup sync thread 4793 ... [ 30.996559] IPVS: stopping backup sync thread 4791 ... [ 31.002731] IPVS: stopping backup sync thread 4794 ... [ 31.021616] IPVS: stopping backup sync thread 4801 ... executing program executing program executing program executing program [ 31.025629] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.031350] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.036253] IPVS: stopping backup sync thread 4803 ... [ 31.051406] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.058232] IPVS: stopping backup sync thread 4806 ... [ 31.062950] IPVS: stopping backup sync thread 4816 ... [ 31.065296] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program executing program [ 31.073802] IPVS: stopping backup sync thread 4817 ... [ 31.082725] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.084379] IPVS: stopping backup sync thread 4813 ... [ 31.096259] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.100797] IPVS: stopping backup sync thread 4821 ... [ 31.109759] IPVS: stopping backup sync thread 4819 ... executing program executing program [ 31.128874] IPVS: stopping backup sync thread 4831 ... [ 31.132999] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.137700] IPVS: stopping backup sync thread 4833 ... [ 31.144832] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.151364] IPVS: stopping backup sync thread 4837 ... [ 31.156658] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.166759] IPVS: stopping backup sync thread 4840 ... executing program [ 31.170551] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.176756] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.187172] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.192979] IPVS: stopping backup sync thread 4841 ... [ 31.201759] IPVS: stopping backup sync thread 4845 ... [ 31.209671] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.212601] IPVS: stopping backup sync thread 4846 ... executing program executing program executing program executing program executing program executing program executing program executing program [ 31.226815] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.227262] IPVS: stopping backup sync thread 4848 ... [ 31.250991] IPVS: stopping backup sync thread 4856 ... [ 31.264446] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.269738] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program [ 31.273645] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.282667] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.291165] IPVS: stopping backup sync thread 4868 ... [ 31.300318] IPVS: stopping backup sync thread 4864 ... [ 31.303479] IPVS: stopping backup sync thread 4869 ... [ 31.310114] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.315509] IPVS: stopping backup sync thread 4866 ... executing program [ 31.323214] IPVS: stopping backup sync thread 4870 ... [ 31.331373] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.333945] IPVS: stopping backup sync thread 4875 ... [ 31.344897] IPVS: stopping backup sync thread 4878 ... [ 31.349343] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.357638] IPVS: stopping backup sync thread 4879 ... [ 31.361490] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.373704] IPVS: stopping backup sync thread 4882 ... executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 31.377333] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.392579] IPVS: stopping backup sync thread 4888 ... [ 31.399876] IPVS: stopping backup sync thread 4892 ... [ 31.407303] IPVS: stopping backup sync thread 4896 ... [ 31.419338] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program [ 31.419391] IPVS: stopping backup sync thread 4899 ... [ 31.433664] IPVS: stopping backup sync thread 4903 ... [ 31.435892] IPVS: stopping backup sync thread 4907 ... [ 31.446267] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.446532] IPVS: stopping backup sync thread 4910 ... [ 31.460979] IPVS: stopping backup sync thread 4911 ... [ 31.463801] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.469141] IPVS: stopping backup sync thread 4913 ... executing program executing program executing program [ 31.475288] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.487165] IPVS: stopping backup sync thread 4916 ... [ 31.494793] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.499372] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.511104] IPVS: stopping backup sync thread 4922 ... [ 31.511853] IPVS: stopping backup sync thread 4917 ... [ 31.521395] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program executing program [ 31.525493] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.531496] IPVS: stopping backup sync thread 4930 ... [ 31.543534] IPVS: stopping backup sync thread 4929 ... [ 31.552180] IPVS: stopping backup sync thread 4926 ... [ 31.553273] IPVS: stopping backup sync thread 4936 ... [ 31.558487] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.565395] IPVS: stopping backup sync thread 4938 ... executing program executing program executing program executing program executing program executing program [ 31.573094] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.583398] IPVS: stopping backup sync thread 4941 ... [ 31.585396] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.596565] IPVS: stopping backup sync thread 4943 ... [ 31.599535] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.620929] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program executing program [ 31.629959] IPVS: stopping backup sync thread 4954 ... [ 31.635768] IPVS: stopping backup sync thread 4947 ... [ 31.639813] IPVS: stopping backup sync thread 4955 ... [ 31.649995] IPVS: stopping backup sync thread 4963 ... [ 31.651575] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.658732] IPVS: stopping backup sync thread 4964 ... [ 31.663844] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program executing program [ 31.669966] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.686749] IPVS: stopping backup sync thread 4965 ... [ 31.686814] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.700657] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.701736] IPVS: stopping backup sync thread 4970 ... [ 31.709166] IPVS: stopping backup sync thread 4972 ... [ 31.715366] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.726144] IPVS: stopping backup sync thread 4976 ... executing program executing program executing program executing program executing program [ 31.728624] IPVS: stopping backup sync thread 4977 ... [ 31.733894] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.745787] IPVS: stopping backup sync thread 4980 ... executing program executing program executing program [ 31.778561] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.787928] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.790320] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.804386] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.811533] IPVS: stopping backup sync thread 4991 ... [ 31.814000] IPVS: stopping backup sync thread 4999 ... [ 31.818967] IPVS: stopping backup sync thread 4996 ... [ 31.824738] IPVS: stopping backup sync thread 4995 ... [ 31.831088] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.836607] IPVS: stopping backup sync thread 5003 ... [ 31.846654] IPVS: stopping backup sync thread 5006 ... [ 31.848505] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.850213] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.854904] IPVS: stopping backup sync thread 5007 ... executing program executing program executing program executing program executing program executing program executing program executing program [ 31.863214] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.876651] IPVS: stopping backup sync thread 5008 ... [ 31.910715] IPVS: stopping backup sync thread 5013 ... executing program [ 31.932374] IPVS: stopping backup sync thread 5026 ... [ 31.941986] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.942339] IPVS: stopping backup sync thread 5027 ... [ 31.951874] IPVS: stopping backup sync thread 5029 ... [ 31.962796] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 31.972362] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 executing program [ 31.972717] IPVS: stopping backup sync thread 5034 ... [ 31.983413] [ 31.986753] IPVS: stopping backup sync thread 5035 ... [ 31.987673] ============================================ [ 31.987676] WARNING: possible recursive locking detected [ 31.987683] 4.16.0+ #3 Not tainted [ 31.987686] -------------------------------------------- [ 31.987692] syzkaller518096/5023 is trying to acquire lock: [ 31.987698] 0000000093f281d6 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 31.987728] [ 31.987728] but task is already holding lock: [ 32.031303] 0000000093f281d6 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 32.038135] [ 32.038135] other info that might help us debug this: [ 32.045356] Possible unsafe locking scenario: [ 32.045356] [ 32.051393] CPU0 [ 32.053952] ---- [ 32.056511] lock(rtnl_mutex); [ 32.059771] lock(rtnl_mutex); [ 32.063034] [ 32.063034] *** DEADLOCK *** [ 32.063034] [ 32.069078] May be due to missing lock nesting notation [ 32.069078] [ 32.075987] 2 locks held by syzkaller518096/5023: [ 32.080814] #0: 0000000093f281d6 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 [ 32.088095] #1: 0000000024dde476 (ipvs->sync_mutex){+.+.}, at: do_ip_vs_set_ctl+0x562/0x1d30 [ 32.096769] [ 32.096769] stack backtrace: [ 32.101258] CPU: 1 PID: 5023 Comm: syzkaller518096 Not tainted 4.16.0+ #3 [ 32.108171] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 32.117510] Call Trace: [ 32.120094] dump_stack+0x1b9/0x294 [ 32.123711] ? dump_stack_print_info.cold.2+0x52/0x52 [ 32.128892] ? print_lock+0xd1/0xd6 [ 32.132500] ? vprintk_func+0x81/0xe7 [ 32.136282] __lock_acquire.cold.62+0x18c/0x55b [ 32.140937] ? debug_check_no_locks_freed+0x310/0x310 [ 32.146108] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.150590] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.155598] ? __lock_acquire+0x7f5/0x5140 [ 32.159835] ? copy_overflow+0x20/0x20 [ 32.163712] ? perf_trace_lock_acquire+0xe3/0x980 [ 32.168552] ? perf_trace_lock+0x900/0x900 [ 32.172779] ? __schedule+0x809/0x1e30 [ 32.176654] ? graph_lock+0x170/0x170 [ 32.180437] ? perf_trace_lock_acquire+0xe3/0x980 [ 32.185267] ? graph_lock+0x170/0x170 [ 32.189054] lock_acquire+0x1dc/0x520 [ 32.192845] ? rtnl_lock+0x17/0x20 [ 32.196364] ? lock_release+0xa10/0xa10 [ 32.200424] ? schedule+0xef/0x430 [ 32.203945] ? rcu_note_context_switch+0x710/0x710 [ 32.208863] ? __might_sleep+0x95/0x190 [ 32.212824] ? rtnl_lock+0x17/0x20 [ 32.216346] __mutex_lock+0x16d/0x17f0 [ 32.220221] ? rtnl_lock+0x17/0x20 [ 32.223747] ? rtnl_lock+0x17/0x20 [ 32.227278] ? mutex_trylock+0x2a0/0x2a0 [ 32.231326] ? mark_held_locks+0xc9/0x160 [ 32.235465] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.240043] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.244529] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.249533] ? trace_hardirqs_on+0xd/0x10 [ 32.253665] ? _raw_spin_unlock_irq+0x27/0x70 [ 32.258160] ? wait_for_completion_killable+0x56c/0x960 [ 32.263509] ? wait_for_completion_interruptible_timeout+0x960/0x960 [ 32.270000] ? lock_downgrade+0x8e0/0x8e0 [ 32.274226] ? kasan_check_read+0x11/0x20 [ 32.278355] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.282745] ? do_raw_spin_trylock+0x1b0/0x1b0 [ 32.287315] ? wake_up_q+0x100/0x100 [ 32.291019] ? kasan_check_write+0x14/0x20 [ 32.295249] ? do_raw_spin_lock+0xc1/0x200 [ 32.299478] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.305027] ? __kthread_create_on_node+0x34f/0x4c0 [ 32.310059] ? __kthread_parkme+0x280/0x280 [ 32.314371] ? kasan_check_read+0x11/0x20 [ 32.318504] ? do_raw_spin_unlock+0x9e/0x2e0 [ 32.322895] ? __lock_is_held+0xb5/0x140 [ 32.326945] mutex_lock_nested+0x16/0x20 [ 32.330993] ? mutex_lock_nested+0x16/0x20 [ 32.335213] rtnl_lock+0x17/0x20 [ 32.338568] ip_mc_drop_socket+0x8f/0x270 [ 32.342702] inet_release+0x4e/0x1f0 [ 32.346399] sock_release+0x96/0x1b0 [ 32.350095] start_sync_thread+0xdc3/0x2d40 [ 32.354410] ? ip_vs_process_message+0xa0a/0xa0a [ 32.359149] ? ip_vs_sync_conn+0x33a0/0x33a0 [ 32.363539] ? mark_held_locks+0xc9/0x160 [ 32.367668] ? graph_lock+0x170/0x170 [ 32.371453] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 32.376452] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 32.381194] ? find_held_lock+0x36/0x1c0 [ 32.385239] ? lock_downgrade+0x8e0/0x8e0 [ 32.389381] ? lock_release+0xa10/0xa10 [ 32.393359] ? module_unload_free+0x5b0/0x5b0 [ 32.397853] do_ip_vs_set_ctl+0x59c/0x1d30 [ 32.402087] ? find_held_lock+0x36/0x1c0 [ 32.406133] ? ip_vs_genl_set_cmd+0xe80/0xe80 [ 32.410618] ? lock_downgrade+0x8e0/0x8e0 [ 32.414753] ? kasan_check_read+0x11/0x20 [ 32.419066] ? rcu_is_watching+0x85/0x140 [ 32.423207] ? rcu_bh_force_quiescent_state+0x20/0x20 [ 32.428397] ? kasan_check_write+0x14/0x20 [ 32.432623] ? __mutex_unlock_slowpath+0x180/0x8a0 [ 32.437545] ? wait_for_completion+0x870/0x870 [ 32.442110] ? module_unload_free+0x5b0/0x5b0 [ 32.446587] ? fd_install+0x4d/0x60 [ 32.450216] ? mutex_unlock+0xd/0x10 [ 32.453931] nf_setsockopt+0x7d/0xd0 [ 32.457634] ? nf_setsockopt+0x7d/0xd0 [ 32.461519] ip_setsockopt+0xd8/0xf0 [ 32.465222] tcp_setsockopt+0x93/0xe0 [ 32.469012] sock_common_setsockopt+0x9a/0xe0 [ 32.473501] __sys_setsockopt+0x1bd/0x390 [ 32.477641] ? kernel_accept+0x310/0x310 [ 32.481702] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 32.487231] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 32.492068] SyS_setsockopt+0x34/0x50 [ 32.495858] ? SyS_recv+0x40/0x40 [ 32.499304] do_syscall_64+0x29e/0x9d0 [ 32.503183] ? vmalloc_sync_all+0x30/0x30 [ 32.507323] ? syscall_slow_exit_work+0x4f0/0x4f0 [ 32.512159] ? syscall_return_slowpath+0x5c0/0x5c0 [ 32.517076] ? syscall_return_slowpath+0x30f/0x5c0 [ 32.521997] ? entry_SYSCALL_64_after_hwframe+0x52/0xb7 [ 32.527351] ? trace_hardirqs_off_thunk+0x1a/0x1c executing program [ 32.532190] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 32.537375] RIP: 0033:0x44aa19 [ 32.540566] RSP: 002b:00007f926b37eda8 EFLAGS: 00000297 ORIG_RAX: 0000000000000036 [ 32.548269] RAX: ffffffffffffffda RBX: 00000000006e29e4 RCX: 000000000044aa19 [ 32.555534] RDX: 000000000000048b RSI: 0000000000000000 RDI: 0000000000000003 [ 32.562802] RBP: 0000000000000000 R08: 0000000000000018 R09: 0000000000000000 [ 32.570055] R10: 0000000020000080 R11: 0000000000000297 R12: 00000000006e29e0 [ 32.577313] R13: 006563696d2f7475 R14: 706e692f7665642f R15: 00000000006e2b60