[....] Starting enhanced syslogd: rsyslogd[ 15.646117] audit: type=1400 audit(1522177645.263:4): avc: denied { syslog } for pid=3651 comm="rsyslogd" capability=34 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1 [?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.11' (ECDSA) to the list of known hosts. 2018/03/27 19:07:37 parsed 1 programs 2018/03/27 19:07:37 executed programs: 0 syzkaller login: [ 27.535599] IPVS: Creating netns size=2536 id=1 [ 27.553043] audit: type=1400 audit(1522177657.163:5): avc: denied { associate } for pid=3815 comm="syz-executor0" name="syz0" scontext=unconfined_u:object_r:unlabeled_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=filesystem permissive=1 [ 27.581093] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.581288] IPVS: stopping backup sync thread 3822 ... [ 27.598253] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.612468] IPVS: stopping backup sync thread 3824 ... [ 27.621164] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.622025] IPVS: stopping backup sync thread 3828 ... [ 27.640337] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.643028] IPVS: stopping backup sync thread 3831 ... [ 27.657598] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.671201] IPVS: stopping backup sync thread 3833 ... [ 27.679735] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.680619] IPVS: stopping backup sync thread 3837 ... [ 27.698864] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.698945] IPVS: stopping backup sync thread 3840 ... [ 27.716392] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.730074] IPVS: stopping backup sync thread 3842 ... [ 27.738592] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.752079] IPVS: stopping backup sync thread 3846 ... [ 27.760539] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.773584] IPVS: stopping backup sync thread 3850 ... [ 27.781124] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.782014] IPVS: stopping backup sync thread 3854 ... [ 27.800598] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.800677] IPVS: stopping backup sync thread 3857 ... [ 27.818180] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.819041] IPVS: stopping backup sync thread 3859 ... [ 27.837365] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.839919] IPVS: stopping backup sync thread 3862 ... [ 27.854531] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.868194] IPVS: stopping backup sync thread 3864 ... [ 27.876698] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.877565] IPVS: stopping backup sync thread 3868 ... [ 27.895599] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.897057] IPVS: stopping backup sync thread 3871 ... [ 27.912740] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.929878] IPVS: stopping backup sync thread 3873 ... [ 27.938506] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.952963] IPVS: stopping backup sync thread 3879 ... [ 27.961751] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.976345] IPVS: stopping backup sync thread 3883 ... [ 27.984856] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 27.985737] IPVS: stopping backup sync thread 3887 ... [ 28.004335] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.005173] IPVS: stopping backup sync thread 3890 ... [ 28.021560] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.035520] IPVS: stopping backup sync thread 3892 ... [ 28.044161] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.045037] IPVS: stopping backup sync thread 3896 ... [ 28.063749] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.072540] IPVS: stopping backup sync thread 3899 ... [ 28.081299] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.094810] IPVS: stopping backup sync thread 3901 ... [ 28.103349] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.104237] IPVS: stopping backup sync thread 3905 ... [ 28.122880] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.122961] IPVS: stopping backup sync thread 3908 ... [ 28.138894] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.139785] IPVS: stopping backup sync thread 3910 ... [ 28.158003] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.158457] IPVS: stopping backup sync thread 3913 ... [ 28.175818] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.189431] IPVS: stopping backup sync thread 3915 ... [ 28.198224] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.211992] IPVS: stopping backup sync thread 3919 ... [ 28.218203] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.231552] IPVS: stopping backup sync thread 3923 ... [ 28.240900] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.241958] IPVS: stopping backup sync thread 3927 ... [ 28.260452] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.260535] IPVS: stopping backup sync thread 3930 ... [ 28.276563] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.277442] IPVS: stopping backup sync thread 3932 ... [ 28.295959] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.298193] IPVS: stopping backup sync thread 3935 ... [ 28.312974] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.326458] IPVS: stopping backup sync thread 3937 ... [ 28.335110] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.335874] IPVS: stopping backup sync thread 3941 ... [ 28.354281] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.354358] IPVS: stopping backup sync thread 3944 ... [ 28.371415] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.385281] IPVS: stopping backup sync thread 3946 ... [ 28.394099] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.395051] IPVS: stopping backup sync thread 3950 ... [ 28.413231] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.414685] IPVS: stopping backup sync thread 3953 ... [ 28.430328] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.443921] IPVS: stopping backup sync thread 3955 ... [ 28.452490] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.465607] IPVS: stopping backup sync thread 3959 ... [ 28.474070] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.488065] IPVS: stopping backup sync thread 3963 ... [ 28.496729] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.497591] IPVS: stopping backup sync thread 3967 ... [ 28.516122] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.517603] IPVS: stopping backup sync thread 3970 ... [ 28.533120] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.547112] IPVS: stopping backup sync thread 3972 ... [ 28.555573] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.556591] IPVS: stopping backup sync thread 3976 ... [ 28.574807] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.574848] IPVS: stopping backup sync thread 3979 ... [ 28.592015] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.606010] IPVS: stopping backup sync thread 3981 ... [ 28.614447] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.615332] IPVS: stopping backup sync thread 3985 ... [ 28.633496] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.635301] IPVS: stopping backup sync thread 3988 ... [ 28.650842] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.664616] IPVS: stopping backup sync thread 3990 ... [ 28.673167] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.674059] IPVS: stopping backup sync thread 3994 ... [ 28.692989] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.693069] IPVS: stopping backup sync thread 3997 ... [ 28.710127] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.724074] IPVS: stopping backup sync thread 3999 ... [ 28.732627] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.733507] IPVS: stopping backup sync thread 4003 ... [ 28.751998] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.752076] IPVS: stopping backup sync thread 4006 ... [ 28.769068] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.783942] IPVS: stopping backup sync thread 4008 ... [ 28.792550] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.806523] IPVS: stopping backup sync thread 4012 ... [ 28.815175] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.828731] IPVS: stopping backup sync thread 4016 ... [ 28.837239] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.850877] IPVS: stopping backup sync thread 4020 ... [ 28.859353] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.872320] IPVS: stopping backup sync thread 4024 ... [ 28.880795] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.881696] IPVS: stopping backup sync thread 4028 ... [ 28.899588] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.899667] IPVS: stopping backup sync thread 4031 ... [ 28.916834] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.917692] IPVS: stopping backup sync thread 4033 ... [ 28.935795] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.937306] IPVS: stopping backup sync thread 4036 ... [ 28.952853] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.966722] IPVS: stopping backup sync thread 4038 ... [ 28.975385] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.988574] IPVS: stopping backup sync thread 4042 ... [ 28.997033] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 28.997911] IPVS: stopping backup sync thread 4046 ... [ 29.016030] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.016406] IPVS: stopping backup sync thread 4049 ... [ 29.032990] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.047010] IPVS: stopping backup sync thread 4051 ... [ 29.055695] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.069212] IPVS: stopping backup sync thread 4055 ... [ 29.077850] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.091633] IPVS: stopping backup sync thread 4059 ... [ 29.100141] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.100997] IPVS: stopping backup sync thread 4063 ... [ 29.119528] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.119612] IPVS: stopping backup sync thread 4066 ... [ 29.136904] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.150316] IPVS: stopping backup sync thread 4068 ... [ 29.158796] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.159697] IPVS: stopping backup sync thread 4072 ... [ 29.178249] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.178329] IPVS: stopping backup sync thread 4075 ... [ 29.195415] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.209018] IPVS: stopping backup sync thread 4077 ... [ 29.216383] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.229856] IPVS: stopping backup sync thread 4081 ... [ 29.238616] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.239489] IPVS: stopping backup sync thread 4085 ... [ 29.257456] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.261200] IPVS: stopping backup sync thread 4088 ... [ 29.273435] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.287171] IPVS: stopping backup sync thread 4090 ... [ 29.295626] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.296492] IPVS: stopping backup sync thread 4094 ... [ 29.314670] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.316310] IPVS: stopping backup sync thread 4097 ... [ 29.332049] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.345744] IPVS: stopping backup sync thread 4099 ... [ 29.354267] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.355129] IPVS: stopping backup sync thread 4103 ... [ 29.374019] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.375208] IPVS: stopping backup sync thread 4106 ... [ 29.391148] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.405183] IPVS: stopping backup sync thread 4108 ... [ 29.413645] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.414525] IPVS: stopping backup sync thread 4112 ... [ 29.432418] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.435151] IPVS: stopping backup sync thread 4115 ... [ 29.449932] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.463699] IPVS: stopping backup sync thread 4117 ... [ 29.472734] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.473588] IPVS: stopping backup sync thread 4121 ... [ 29.491601] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.492121] IPVS: stopping backup sync thread 4124 ... [ 29.508607] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.522143] IPVS: stopping backup sync thread 4126 ... [ 29.530711] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.531582] IPVS: stopping backup sync thread 4130 ... [ 29.550163] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.550242] IPVS: stopping backup sync thread 4133 ... [ 29.567186] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.568069] IPVS: stopping backup sync thread 4135 ... [ 29.592956] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.593032] IPVS: stopping backup sync thread 4138 ... [ 29.610262] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.623833] IPVS: stopping backup sync thread 4140 ... [ 29.632313] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.633207] IPVS: stopping backup sync thread 4144 ... [ 29.651683] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.655276] IPVS: stopping backup sync thread 4147 ... [ 29.668833] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.682464] IPVS: stopping backup sync thread 4149 ... [ 29.691022] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.691922] IPVS: stopping backup sync thread 4153 ... [ 29.711338] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.715124] IPVS: stopping backup sync thread 4156 ... [ 29.728380] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.741879] IPVS: stopping backup sync thread 4158 ... [ 29.750367] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.751264] IPVS: stopping backup sync thread 4162 ... [ 29.769780] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.769858] IPVS: stopping backup sync thread 4165 ... [ 29.786815] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.800498] IPVS: stopping backup sync thread 4167 ... [ 29.807839] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.808748] IPVS: stopping backup sync thread 4171 ... [ 29.827184] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.830899] IPVS: stopping backup sync thread 4174 ... [ 29.844247] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.858229] IPVS: stopping backup sync thread 4176 ... [ 29.865565] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.866598] IPVS: stopping backup sync thread 4180 ... [ 29.884692] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.884773] IPVS: stopping backup sync thread 4183 ... [ 29.901777] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.902684] IPVS: stopping backup sync thread 4185 ... [ 29.920811] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.920894] IPVS: stopping backup sync thread 4188 ... [ 29.935832] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.949184] IPVS: stopping backup sync thread 4190 ... [ 29.958256] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.971865] IPVS: stopping backup sync thread 4194 ... [ 29.980280] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 29.993986] IPVS: stopping backup sync thread 4198 ... [ 30.002429] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.003334] IPVS: stopping backup sync thread 4202 ... [ 30.021619] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.021705] IPVS: stopping backup sync thread 4205 ... [ 30.038836] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.052198] IPVS: stopping backup sync thread 4207 ... [ 30.061419] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.062325] IPVS: stopping backup sync thread 4211 ... [ 30.081150] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.081233] IPVS: stopping backup sync thread 4214 ... [ 30.098674] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.099536] IPVS: stopping backup sync thread 4216 ... [ 30.118416] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.118496] IPVS: stopping backup sync thread 4219 ... [ 30.135500] IPVS: sync thread started: state = BACKUP, mcast_ifn = tunl0, syncid = 0, id = 0 [ 30.148871] IPVS: stopping backup sync thread 4221 ... [ 30.157201] [ 30.158834] ============================================= [ 30.164362] [ INFO: possible recursive locking detected ] [ 30.169869] 4.9.90-gdd1e37e #66 Not tainted [ 30.174155] --------------------------------------------- [ 30.179670] syz-executor0/4223 is trying to acquire lock: [ 30.185171] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 30.192944] but task is already holding lock: [ 30.197578] (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 30.205341] other info that might help us debug this: [ 30.210670] Possible unsafe locking scenario: [ 30.210670] [ 30.216701] CPU0 [ 30.219251] ---- [ 30.221801] lock(rtnl_mutex); [ 30.225297] lock(rtnl_mutex); [ 30.228772] [ 30.228772] *** DEADLOCK *** [ 30.228772] [ 30.234798] May be due to missing lock nesting notation [ 30.234798] [ 30.241703] 2 locks held by syz-executor0/4223: [ 30.246337] #0: (rtnl_mutex){+.+.+.}, at: [] rtnl_lock+0x17/0x20 [ 30.254670] #1: (ipvs->sync_mutex){+.+.+.}, at: [] do_ip_vs_set_ctl+0x8e7/0xc00 [ 30.264291] [ 30.264291] stack backtrace: [ 30.268758] CPU: 1 PID: 4223 Comm: syz-executor0 Not tainted 4.9.90-gdd1e37e #66 [ 30.276255] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 30.285580] ffff8801b1777460 ffffffff81d94ee9 ffffffff8536fd80 ffffffff8536fd80 [ 30.293558] dffffc0000000000 7e06f8cbd7b30dc5 0000000000000000 ffff8801b1777630 [ 30.301535] ffffffff8123b925 ffffffff84c6bca0 ffffffff84fc35b0 ffffffff84c6bca4 [ 30.309507] Call Trace: [ 30.312066] [] dump_stack+0xc1/0x128 [ 30.317399] [] __lock_acquire+0xe35/0x3640 [ 30.323253] [] ? debug_check_no_locks_freed+0x2c0/0x2c0 [ 30.330249] [] ? __lock_is_held+0xa1/0xf0 [ 30.336015] [] lock_acquire+0x12e/0x410 [ 30.341617] [] ? rtnl_lock+0x17/0x20 [ 30.346959] [] ? rtnl_lock+0x17/0x20 [ 30.352294] [] mutex_lock_nested+0xbb/0x870 [ 30.358239] [] ? rtnl_lock+0x17/0x20 [ 30.363571] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.370384] [] ? qtaguid_untag+0x487/0x680 [ 30.376238] [] ? mutex_lock_killable_nested+0x960/0x960 [ 30.383230] [] ? _raw_spin_unlock_bh+0x30/0x40 [ 30.389429] [] ? qtaguid_untag+0x326/0x680 [ 30.395284] [] rtnl_lock+0x17/0x20 [ 30.400444] [] ip_mc_drop_socket+0x88/0x230 [ 30.406387] [] inet_release+0x5b/0x1d0 [ 30.411897] [] sock_release+0x8d/0x1e0 [ 30.417404] [] start_sync_thread+0x191b/0x1ef0 [ 30.423604] [] ? ip_vs_proc_sync_conn+0xc90/0xc90 [ 30.430067] [] ? ip_vs_sync_conn+0x2b30/0x2b30 [ 30.436268] [] ? mark_held_locks+0xaf/0x100 [ 30.442209] [] ? mutex_lock_nested+0x5e3/0x870 [ 30.448409] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 30.455217] [] ? mutex_lock_nested+0x56f/0x870 [ 30.461415] [] ? do_ip_vs_set_ctl+0x8e7/0xc00 [ 30.467530] [] ? mutex_lock_killable_nested+0x960/0x960 [ 30.474511] [] ? memcpy+0x45/0x50 [ 30.479599] [] do_ip_vs_set_ctl+0x8fb/0xc00 [ 30.485540] [] ? ip_vs_genl_dump_services+0x430/0x430 [ 30.492349] [] ? mutex_lock_nested+0x5e3/0x870 [ 30.498554] [] ? __mutex_unlock_slowpath+0x220/0x3d0 [ 30.505274] [] ? __ww_mutex_lock_interruptible+0x14a0/0x14a0 [ 30.512691] [] ? sock_has_perm+0x292/0x3e0 [ 30.518543] [] ? mutex_unlock+0x9/0x10 [ 30.524050] [] ? nf_sockopt_find.constprop.0+0x1a7/0x220 [ 30.531117] [] nf_setsockopt+0x67/0xc0 [ 30.536621] [] ip_setsockopt+0x97/0xa0 [ 30.542127] [] tcp_setsockopt+0x82/0xd0 [ 30.547723] [] sock_common_setsockopt+0x95/0xd0 [ 30.554009] [] SyS_setsockopt+0x160/0x250 [ 30.559782] [] ? SyS_recv+0x40/0x40 [ 30.565030] [] ? __fget_light+0x169/0x1f0 [ 30.570797] [] ? do_vfs_ioctl+0x1140/0x1140 [ 30.576742] [] ? do_syscall_64+0x48/0x490 [ 30.582509] [] ? SyS_recv+0x40/0x40 [ 30.587764] [] do_syscall_64+0x1a4/0x490 [ 30.593444] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb