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 '10.128.0.12' (ECDSA) to the list of known hosts. 2018/04/18 02:46:01 parsed 1 programs 2018/04/18 02:46:01 executed programs: 0 syzkaller login: [ 26.894672] IPVS: Creating netns size=2536 id=1 [ 26.918343] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 26.919039] IPVS: stopping backup sync thread 3809 ... [ 26.932835] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 26.932843] IPVS: Creating netns size=2536 id=2 [ 26.961307] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 26.961713] IPVS: stopping backup sync thread 3820 ... [ 26.970425] IPVS: stopping backup sync thread 3811 ... [ 26.971628] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 26.977177] IPVS: Creating netns size=2536 id=3 [ 26.999245] IPVS: Creating netns size=2536 id=4 [ 27.013228] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.016703] IPVS: stopping backup sync thread 3837 ... [ 27.017082] IPVS: stopping backup sync thread 3824 ... [ 27.024319] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.024370] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.048536] IPVS: Creating netns size=2536 id=5 [ 27.067092] IPVS: stopping backup sync thread 3858 ... [ 27.067209] IPVS: stopping backup sync thread 3836 ... [ 27.068565] IPVS: stopping backup sync thread 3843 ... [ 27.071039] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.071086] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.072256] IPVS: stopping backup sync thread 3840 ... [ 27.073200] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.086193] IPVS: Creating netns size=2536 id=6 [ 27.099664] IPVS: stopping backup sync thread 3864 ... [ 27.113750] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.117049] IPVS: stopping backup sync thread 3865 ... [ 27.121605] IPVS: Creating netns size=2536 id=7 [ 27.126288] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.127849] IPVS: stopping backup sync thread 3863 ... [ 27.136404] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.155505] IPVS: Creating netns size=2536 id=8 [ 27.180693] IPVS: stopping backup sync thread 3897 ... [ 27.189900] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.192260] IPVS: stopping backup sync thread 3904 ... [ 27.209081] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.231798] IPVS: stopping backup sync thread 3920 ... [ 27.238111] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.245554] IPVS: stopping backup sync thread 3886 ... [ 27.246737] IPVS: stopping backup sync thread 3879 ... [ 27.248782] IPVS: stopping backup sync thread 3884 ... [ 27.249130] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.261611] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.267592] IPVS: stopping backup sync thread 3901 ... [ 27.278046] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.290698] IPVS: stopping backup sync thread 3906 ... [ 27.290739] IPVS: stopping backup sync thread 3949 ... [ 27.290923] IPVS: stopping backup sync thread 3924 ... [ 27.302042] IPVS: stopping backup sync thread 3933 ... [ 27.302602] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.302794] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.303594] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.304530] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.305015] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.344850] IPVS: stopping backup sync thread 3935 ... [ 27.349529] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.351354] IPVS: stopping backup sync thread 3943 ... [ 27.352270] IPVS: stopping backup sync thread 3962 ... [ 27.353275] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.353339] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.518601] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.534739] IPVS: stopping backup sync thread 3959 ... [ 27.546801] IPVS: stopping backup sync thread 3957 ... [ 27.547758] IPVS: stopping backup sync thread 3978 ... [ 27.552614] IPVS: stopping backup sync thread 3976 ... [ 27.552663] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.553300] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.554250] IPVS: stopping backup sync thread 3984 ... [ 27.555271] IPVS: stopping backup sync thread 3961 ... [ 27.555402] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.556802] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.558724] IPVS: stopping backup sync thread 3953 ... [ 27.559033] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.569654] IPVS: stopping backup sync thread 3980 ... [ 27.584047] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.602463] IPVS: stopping backup sync thread 4006 ... [ 27.603138] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.607060] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.607810] IPVS: stopping backup sync thread 4010 ... [ 27.614045] IPVS: stopping backup sync thread 4012 ... [ 27.620207] IPVS: stopping backup sync thread 4008 ... [ 27.621301] IPVS: stopping backup sync thread 4004 ... [ 27.621342] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.624258] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.634658] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.641692] IPVS: stopping backup sync thread 4015 ... [ 27.648636] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.651908] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.654762] IPVS: stopping backup sync thread 4036 ... [ 27.669764] IPVS: stopping backup sync thread 4025 ... [ 27.670215] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.674239] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.675899] IPVS: stopping backup sync thread 4039 ... [ 27.685032] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.859842] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.877127] IPVS: stopping backup sync thread 4052 ... [ 27.889731] IPVS: stopping backup sync thread 4063 ... [ 27.891275] IPVS: stopping backup sync thread 4058 ... [ 27.891515] IPVS: stopping backup sync thread 4046 ... [ 27.895086] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.896941] IPVS: stopping backup sync thread 4067 ... [ 27.897076] IPVS: stopping backup sync thread 4069 ... [ 27.897265] IPVS: stopping backup sync thread 4047 ... [ 27.897931] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.898269] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.898354] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.899479] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.900162] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.905271] IPVS: stopping backup sync thread 4074 ... [ 27.909071] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.946966] IPVS: stopping backup sync thread 4095 ... [ 27.947043] IPVS: stopping backup sync thread 4099 ... [ 27.948296] IPVS: stopping backup sync thread 4101 ... [ 27.962479] IPVS: stopping backup sync thread 4105 ... [ 27.962556] IPVS: stopping backup sync thread 4103 ... [ 27.963026] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.975228] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.976179] IPVS: stopping backup sync thread 4098 ... [ 27.978735] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.980020] IPVS: stopping backup sync thread 4093 ... [ 27.983846] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.984436] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.986019] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 27.993945] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.004495] IPVS: stopping backup sync thread 4127 ... [ 28.020826] IPVS: stopping backup sync thread 4133 ... [ 28.022620] IPVS: stopping backup sync thread 4138 ... [ 28.022713] IPVS: stopping backup sync thread 4143 ... [ 28.025901] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.034044] IPVS: stopping backup sync thread 4149 ... [ 28.034086] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.042193] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.049089] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.049636] IPVS: stopping backup sync thread 4147 ... [ 28.050290] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.050338] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.300180] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.321196] IPVS: stopping backup sync thread 4176 ... [ 28.321316] IPVS: stopping backup sync thread 4169 ... [ 28.325104] IPVS: stopping backup sync thread 4178 ... [ 28.325847] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.326278] IPVS: stopping backup sync thread 4161 ... [ 28.326873] IPVS: stopping backup sync thread 4146 ... [ 28.327069] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.328045] IPVS: stopping backup sync thread 4187 ... [ 28.331330] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.334759] IPVS: stopping backup sync thread 4173 ... [ 28.336102] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.341301] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.341356] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.344103] IPVS: stopping backup sync thread 4180 ... [ 28.357048] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.359946] IPVS: stopping backup sync thread 4205 ... [ 28.362897] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.381130] IPVS: stopping backup sync thread 4212 ... [ 28.382441] IPVS: stopping backup sync thread 4215 ... [ 28.384119] IPVS: stopping backup sync thread 4208 ... [ 28.389223] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.393124] IPVS: stopping backup sync thread 4210 ... [ 28.410721] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.414918] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.418463] IPVS: stopping backup sync thread 4219 ... [ 28.419119] IPVS: stopping backup sync thread 4222 ... [ 28.429354] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.432980] IPVS: stopping backup sync thread 4240 ... [ 28.433034] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.433306] IPVS: stopping backup sync thread 4229 ... [ 28.440014] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.450378] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.455871] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.456285] IPVS: stopping backup sync thread 4245 ... [ 28.456856] IPVS: stopping backup sync thread 4251 ... [ 28.465521] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.472045] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.484959] IPVS: stopping backup sync thread 4265 ... [ 28.486325] IPVS: stopping backup sync thread 4257 ... [ 28.490421] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.506049] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.733691] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.754840] IPVS: stopping backup sync thread 4287 ... [ 28.755275] IPVS: stopping backup sync thread 4268 ... [ 28.758241] IPVS: stopping backup sync thread 4295 ... [ 28.761153] IPVS: stopping backup sync thread 4281 ... [ 28.764410] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.764713] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.765735] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.766246] IPVS: stopping backup sync thread 4289 ... [ 28.767172] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.769901] IPVS: stopping backup sync thread 4277 ... [ 28.774981] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.776493] IPVS: stopping backup sync thread 4259 ... [ 28.776694] IPVS: stopping backup sync thread 4273 ... [ 28.796135] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.805797] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.805960] IPVS: stopping backup sync thread 4314 ... [ 28.818149] IPVS: stopping backup sync thread 4318 ... [ 28.821600] IPVS: stopping backup sync thread 4322 ... [ 28.821635] IPVS: stopping backup sync thread 4320 ... [ 28.828013] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.832051] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.834011] IPVS: stopping backup sync thread 4316 ... [ 28.834211] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.844178] IPVS: stopping backup sync thread 4327 ... [ 28.844208] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.846468] IPVS: stopping backup sync thread 4357 ... [ 28.848587] IPVS: stopping backup sync thread 4337 ... [ 28.862824] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.866241] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.871470] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.886537] IPVS: stopping backup sync thread 4349 ... [ 28.887405] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.891038] IPVS: stopping backup sync thread 4359 ... [ 28.893513] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.899266] IPVS: stopping backup sync thread 4354 ... [ 28.905236] IPVS: stopping backup sync thread 4365 ... [ 28.908139] IPVS: stopping backup sync thread 4373 ... [ 28.908168] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.912924] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.916349] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.918525] IPVS: stopping backup sync thread 4377 ... [ 28.929598] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 28.941908] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.199220] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.223578] IPVS: stopping backup sync thread 4397 ... [ 29.224586] IPVS: stopping backup sync thread 4405 ... [ 29.224876] IPVS: stopping backup sync thread 4400 ... [ 29.229483] IPVS: stopping backup sync thread 4407 ... [ 29.229541] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.232313] IPVS: stopping backup sync thread 4380 ... [ 29.232549] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.233272] IPVS: stopping backup sync thread 4390 ... [ 29.234418] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.235199] IPVS: stopping backup sync thread 4393 ... [ 29.236312] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.238555] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.240216] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.243287] IPVS: stopping backup sync thread 4413 ... [ 29.245364] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.281434] IPVS: stopping backup sync thread 4440 ... [ 29.283514] IPVS: stopping backup sync thread 4438 ... [ 29.296695] IPVS: stopping backup sync thread 4442 ... [ 29.299171] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.301559] IPVS: stopping backup sync thread 4432 ... [ 29.301731] IPVS: stopping backup sync thread 4434 ... [ 29.301809] IPVS: stopping backup sync thread 4436 ... [ 29.302175] IPVS: stopping backup sync thread 4465 ... [ 29.306347] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.307843] IPVS: stopping backup sync thread 4444 ... [ 29.310305] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.311405] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.313849] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.314955] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.315480] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.358762] IPVS: stopping backup sync thread 4470 ... [ 29.358989] IPVS: stopping backup sync thread 4498 ... [ 29.366394] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.368768] IPVS: stopping backup sync thread 4478 ... [ 29.369638] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.371363] IPVS: stopping backup sync thread 4474 ... [ 29.372232] IPVS: stopping backup sync thread 4476 ... [ 29.372283] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.373014] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.373345] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.613736] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.634534] IPVS: stopping backup sync thread 4503 ... [ 29.637196] IPVS: stopping backup sync thread 4479 ... [ 29.640906] IPVS: stopping backup sync thread 4502 ... [ 29.641045] IPVS: stopping backup sync thread 4505 ... [ 29.643418] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.645142] IPVS: stopping backup sync thread 4516 ... [ 29.646287] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.646705] IPVS: stopping backup sync thread 4481 ... [ 29.659551] IPVS: stopping backup sync thread 4507 ... [ 29.659620] IPVS: stopping backup sync thread 4508 ... [ 29.659690] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.663136] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.673291] IPVS: stopping backup sync thread 4535 ... [ 29.679675] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.686293] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.698309] IPVS: stopping backup sync thread 4537 ... [ 29.699581] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.701145] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.705099] IPVS: stopping backup sync thread 4547 ... [ 29.716409] IPVS: stopping backup sync thread 4549 ... [ 29.716654] IPVS: stopping backup sync thread 4539 ... [ 29.717218] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.737016] IPVS: sync thread started: state = BACKUP, mcast_ifn = lo, syncid = 0, id = 0 [ 29.748622] [ 29.748625] ============================================= [ 29.748626] [ INFO: possible recursive locking detected ] [ 29.748631] 4.9.94-g8683408 #3 Not tainted [ 29.748632] --------------------------------------------- [ 29.748635] syz-executor6/4564 is trying to acquire lock: [ 29.748655] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 29.748657] but task is already holding lock: [ 29.748668] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 29.748669] other info that might help us debug this: [ 29.748671] Possible unsafe locking scenario: [ 29.748671] [ 29.748672] CPU0 [ 29.748673] ---- [ 29.748677] lock(rtnl_mutex); [ 29.748680] lock(rtnl_mutex); [ 29.748681] [ 29.748681] *** DEADLOCK *** [ 29.748681] [ 29.748683] May be due to missing lock nesting notation [ 29.748683] [ 29.748686] 2 locks held by syz-executor6/4564: [ 29.748698] #0: (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 29.748712] #1: (ipvs->sync_mutex){+.+.+.}, at: [] do_ip_vs_set_ctl+0x90d/0xbd0 [ 29.748713] [ 29.748713] stack backtrace: [ 29.748719] CPU: 1 PID: 4564 Comm: syz-executor6 Not tainted 4.9.94-g8683408 #3 [ 29.748722] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 29.748733] ffff8801d0307470 ffffffff81d9b509 ffffffff853730e0 ffffffff853730e0 [ 29.748741] ffffffff853730e0 ffff8801d53ea0e8 ca7f78f9c690fb45 ffff8801d0307630 [ 29.748750] ffffffff814258ef ffffffff84c6eca0 ffffffff84fc8338 ffffffff84c6eca4 [ 29.748751] Call Trace: [ 29.748761] [] dump_stack+0xc1/0x128 [ 29.748771] [] __lock_acquire.cold.59+0x166/0x5f8 [ 29.748782] [] ? debug_check_no_locks_freed+0x210/0x210 [ 29.748789] [] ? __lock_is_held+0xa2/0xf0 [ 29.748796] [] lock_acquire+0x130/0x3e0 [ 29.748803] [] ? rtnl_lock+0x17/0x20 [ 29.748810] [] ? rtnl_lock+0x17/0x20 [ 29.748819] [] mutex_lock_nested+0xc0/0x870 [ 29.748826] [] ? rtnl_lock+0x17/0x20 [ 29.748833] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.748841] [] ? qtaguid_untag+0x41a/0x620 [ 29.748848] [] ? mutex_trylock+0x3e0/0x3e0 [ 29.748854] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 29.748860] [] ? qtaguid_untag+0x31e/0x620 [ 29.748867] [] ? __lock_is_held+0xa2/0xf0 [ 29.748873] [] rtnl_lock+0x17/0x20 [ 29.748882] [] ip_mc_drop_socket+0x8c/0x230 [ 29.748889] [] inet_release+0x5b/0x1d0 [ 29.748896] [] sock_release+0x96/0x1c0 [ 29.748903] [] start_sync_thread+0xa0e/0x1ea0 [ 29.748911] [] ? ip_vs_proc_sync_conn+0x952/0x952 [ 29.748918] [] ? ip_vs_sync_conn+0x2a90/0x2a90 [ 29.748924] [] ? mark_held_locks+0xc7/0x130 [ 29.748931] [] ? mutex_lock_nested+0x572/0x870 [ 29.748938] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 29.748945] [] ? mutex_lock_nested+0x596/0x870 [ 29.748951] [] ? do_ip_vs_set_ctl+0x90d/0xbd0 [ 29.748958] [] ? mutex_trylock+0x3e0/0x3e0 [ 29.748965] [] ? memcpy+0x45/0x50 [ 29.748971] [] do_ip_vs_set_ctl+0x91f/0xbd0 [ 29.748979] [] ? get_futex_key+0x1090/0x1090 [ 29.748985] [] ? ip_vs_genl_set_cmd+0x9c0/0x9c0 [ 29.748992] [] ? mutex_lock_nested+0x572/0x870 [ 29.749000] [] ? __mutex_unlock_slowpath+0x221/0x3c0 [ 29.749006] [] ? __ww_mutex_lock+0x14c0/0x14c0 [ 29.749013] [] ? sock_has_perm+0x1c2/0x3e0 [ 29.749020] [] ? mutex_unlock+0x9/0x10 [ 29.749027] [] ? nf_sockopt_find.constprop.0+0x1b1/0x230 [ 29.749035] [] compat_nf_setsockopt+0x10d/0x130 [ 29.749042] [] compat_ip_setsockopt+0xa7/0xe0 [ 29.749049] [] inet_csk_compat_setsockopt+0x97/0x120 [ 29.749055] [] ? ip_setsockopt+0xb0/0xb0 [ 29.749062] [] compat_tcp_setsockopt+0x3d/0x70 [ 29.749069] [] compat_sock_common_setsockopt+0xb4/0x150 [ 29.749076] [] ? tcp_setsockopt+0xe0/0xe0 [ 29.749084] [] compat_SyS_setsockopt+0x14c/0x2a0 [ 29.749090] [] ? sock_common_setsockopt+0xe0/0xe0 [ 29.749097] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 29.749105] [] ? do_fast_syscall_32+0xcf/0x870 [ 29.749112] [] ? scm_detach_fds_compat+0x3b0/0x3b0 [ 29.749118] [] do_fast_syscall_32+0x2f7/0x870 [ 29.749124] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.749131] [] entry_SYSENTER_compat+0x90/0xa2 [ 30.533395] IPVS: stopping backup sync thread 4553 ... [ 30.550390] IPVS: stopping backup sync thread 4562 ... [ 30.555800] IPVS: stopping backup sync thread 4568 ... [ 30.565653] IPVS: stopping backup sync thread 4573 ... [ 30.576652] IPVS: stopping backup sync thread 4577 ...