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 '10.128.0.7' (ECDSA) to the list of known hosts. 2018/04/21 06:04:45 fuzzer started 2018/04/21 06:04:46 dialing manager at 10.128.0.26:35229 2018/04/21 06:04:53 kcov=true, comps=false 2018/04/21 06:04:56 executing program 0: 2018/04/21 06:04:56 executing program 1: 2018/04/21 06:04:56 executing program 7: 2018/04/21 06:04:56 executing program 4: r0 = socket$inet6_sctp(0xa, 0x1, 0x84) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_ADD(r0, 0x84, 0x64, &(0x7f0000223fd4)=[@in6={0xa, 0x4e23}], 0x1c) sendto$inet(r0, &(0x7f0000ac0fbb)="c4", 0x1, 0x0, &(0x7f00006e2000)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) setsockopt$inet_sctp6_SCTP_I_WANT_MAPPED_V4_ADDR(r0, 0x84, 0xc, &(0x7f000056effc), 0x4) recvmsg(r0, &(0x7f00000002c0)={&(0x7f0000000040)=@pppol2tpv3={0x0, 0x0, {0x0, 0xffffffffffffffff, {0x0, 0x0, @rand_addr}}}, 0x80, &(0x7f0000000140), 0x0, &(0x7f00000001c0)=""/198, 0xc6}, 0x0) 2018/04/21 06:04:56 executing program 5: perf_event_open(&(0x7f000025c000)={0x2, 0x70, 0x3e5}, 0x0, 0x0, 0xffffffffffffffff, 0x0) getsockopt$inet_sctp_SCTP_DELAYED_SACK(0xffffffffffffffff, 0x84, 0x10, &(0x7f00001be000)=@assoc_value, &(0x7f00002bdffc)=0x8) mprotect(&(0x7f00002bd000/0x1000)=nil, 0x1000, 0x1) r0 = socket$inet6_dccp(0xa, 0x6, 0x0) getsockopt(r0, 0x10d, 0x2, &(0x7f0000a7d000), &(0x7f00002bdffc)) 2018/04/21 06:04:56 executing program 6: perf_event_open(&(0x7f0000740000)={0x2, 0x70, 0x49, 0x2}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r0, &(0x7f00001fefe4)={0xa, 0x4e22}, 0x1c) ioctl$int_in(r0, 0x5452, &(0x7f000053d000)=0x4) sendto$inet6(r0, &(0x7f0000eb9fff), 0xfffffd65, 0x20000004, &(0x7f000031e000)={0xa, 0x4e22}, 0x1c) 2018/04/21 06:04:56 executing program 2: r0 = gettid() timer_create(0x2, &(0x7f0000af8000)={0x0, 0x4, 0x4, @tid=r0}, &(0x7f00003fe000)) exit(0x0) timer_settime(0x0, 0x20001, &(0x7f0000040fe0)={{}, {0x0, 0x9}}, &(0x7f0000040000)) 2018/04/21 06:04:56 executing program 3: pipe(&(0x7f00007e8ff8)={0x0, 0x0}) fcntl$setpipe(r1, 0x407, 0x0) write$cgroup_int(r1, &(0x7f0000000000)=ANY=[@ANYBLOB="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"], 0x120) vmsplice(r1, &(0x7f0000000380)=[{&(0x7f0000000140)="d210f6235cfb6d40a23ae6e5ba0f1dc597e2f75e6a2083798a804d026fa087", 0x1f}, {&(0x7f0000000280)="6cfb8c7993a29c1310a1db5220a319d33f436f4e2618f2046ad7d2c72f57279965ea9fb360f1fe406c40f2d41067ad818794a58427440d3ee6b50f815a7bed6adad97aa65bd164b72e2cd8b44a3d101fae58da8045b5eb3c1f05816f820998fd885db90fa14c864b6a21975a8f33b6d4b184a7c08ee1d5ecd1bbaa67928e356d657c3cb88ecf6a230168239aa5df81a8d885ee44bc64e2ad0b1b0e5bc054f77fb1c4e9cd94e6928848c3c59ade333f191661d1b01de25aa9be0ee226d799691fef9a7f7cf6c8b380707105ce56ebbd36522fcc", 0xd3}], 0x2, 0x0) r2 = gettid() timer_create(0x0, &(0x7f0000044000)={0x0, 0x12}, &(0x7f0000044000)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, &(0x7f0000040000)) tkill(r2, 0x1000000000016) readv(r0, &(0x7f0000401fb0)=[{&(0x7f0000615fbd)=""/67, 0x43}], 0x1) syzkaller login: [ 43.956535] ip (3742) used greatest stack depth: 54688 bytes left [ 44.177706] ip (3759) used greatest stack depth: 54672 bytes left [ 44.800346] ip (3813) used greatest stack depth: 54312 bytes left [ 45.731562] ip (3902) used greatest stack depth: 53960 bytes left [ 45.980381] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.986970] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.025926] device bridge_slave_0 entered promiscuous mode [ 46.068797] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.075381] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.112133] device bridge_slave_0 entered promiscuous mode [ 46.136923] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.143481] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.167920] device bridge_slave_0 entered promiscuous mode [ 46.205748] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.212300] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.237416] device bridge_slave_1 entered promiscuous mode [ 46.255838] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.262439] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.277861] device bridge_slave_0 entered promiscuous mode [ 46.287659] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.294231] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.306089] device bridge_slave_0 entered promiscuous mode [ 46.328727] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.335284] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.363487] device bridge_slave_1 entered promiscuous mode [ 46.389962] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.396534] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.419385] device bridge_slave_0 entered promiscuous mode [ 46.436660] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.449079] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.455584] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.466288] device bridge_slave_1 entered promiscuous mode [ 46.474751] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.481375] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.507220] device bridge_slave_0 entered promiscuous mode [ 46.522287] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.528881] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.545598] device bridge_slave_1 entered promiscuous mode [ 46.556000] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.562516] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.593225] device bridge_slave_1 entered promiscuous mode [ 46.602274] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.612512] bridge0: port 1(bridge_slave_0) entered blocking state [ 46.619153] bridge0: port 1(bridge_slave_0) entered disabled state [ 46.652320] device bridge_slave_0 entered promiscuous mode [ 46.663451] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.670408] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.705571] device bridge_slave_1 entered promiscuous mode [ 46.714996] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.725684] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.735668] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 46.772976] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.779512] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.817981] device bridge_slave_1 entered promiscuous mode [ 46.842375] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.852624] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 46.868331] bridge0: port 2(bridge_slave_1) entered blocking state [ 46.874866] bridge0: port 2(bridge_slave_1) entered disabled state [ 46.915793] device bridge_slave_1 entered promiscuous mode [ 46.925461] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 46.934623] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 46.956235] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.001122] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.083161] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.131909] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 47.177853] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.203935] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.358002] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 47.582433] ip (4021) used greatest stack depth: 53656 bytes left [ 47.704213] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 47.879183] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 47.928413] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 47.946381] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 47.967333] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.125718] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.151597] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.197567] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.210839] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.265388] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.285388] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.384434] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 48.413550] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.490240] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.501599] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 48.580408] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 49.012662] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.221469] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.238613] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.253789] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.279466] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.446184] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.459464] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.480533] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.488682] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.511756] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.542410] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.553000] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.561219] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.575651] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.631807] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.639150] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.657485] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.697826] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.705670] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.712923] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.722850] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 49.768501] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 49.783015] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.790521] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.804819] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.831716] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.843107] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 49.851863] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 49.860530] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 49.872103] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.917219] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 49.958261] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.991250] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.031311] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.041700] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.048934] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.067144] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.087709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.103891] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.120855] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.128906] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.144909] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.168286] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 50.175630] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.182983] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.202021] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.219583] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.232932] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.248124] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.291298] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.326788] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.357542] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.383415] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.394152] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.403814] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.430961] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 50.455124] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.462387] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.507891] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 50.550275] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.594304] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 50.724472] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 50.731799] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.749998] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 52.225769] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.232323] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.239300] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.245817] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.291885] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.298488] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 52.519550] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.526120] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.533032] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.539567] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.579774] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.675607] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.682154] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.689093] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.695596] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.755623] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.819800] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.826340] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.833310] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.839811] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.900191] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.907503] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.914020] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.920981] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.927509] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.948469] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 52.958611] bridge0: port 2(bridge_slave_1) entered blocking state [ 52.965172] bridge0: port 2(bridge_slave_1) entered forwarding state [ 52.972150] bridge0: port 1(bridge_slave_0) entered blocking state [ 52.978662] bridge0: port 1(bridge_slave_0) entered forwarding state [ 52.989335] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.014550] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.021148] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.028108] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.034622] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.112126] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.231719] bridge0: port 2(bridge_slave_1) entered blocking state [ 53.239163] bridge0: port 2(bridge_slave_1) entered forwarding state [ 53.246343] bridge0: port 1(bridge_slave_0) entered blocking state [ 53.253242] bridge0: port 1(bridge_slave_0) entered forwarding state [ 53.321189] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 53.344230] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.372358] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.397847] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.417522] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.432267] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.447383] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 53.459767] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 62.101354] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.412794] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.517733] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.618540] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.774817] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.830848] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.840177] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.923117] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 62.931202] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 62.937481] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 62.950492] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.164579] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.171116] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.184750] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.407507] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.413896] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.426433] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.461940] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.480861] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.501706] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.647009] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.653461] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.667283] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.720144] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.727788] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.734474] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.757602] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.790417] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.813802] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 63.842871] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 63.853310] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 63.891656] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 69.078071] ================================================================== [ 69.085530] BUG: KMSAN: uninit-value in move_addr_to_user+0x32e/0x530 [ 69.092127] CPU: 0 PID: 5677 Comm: syz-executor4 Not tainted 4.16.0+ #84 [ 69.098976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.108345] Call Trace: [ 69.110958] dump_stack+0x185/0x1d0 [ 69.114605] ? kmsan_internal_check_memory+0x155/0x1e0 [ 69.119894] kmsan_report+0x142/0x240 [ 69.123706] kmsan_internal_check_memory+0x174/0x1e0 [ 69.128824] kmsan_copy_to_user+0x69/0x160 [ 69.133085] move_addr_to_user+0x32e/0x530 [ 69.137342] ___sys_recvmsg+0x4e2/0x810 [ 69.141333] ? __fget_light+0x56/0x710 [ 69.145228] ? __fdget+0x4e/0x60 [ 69.148607] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 69.153986] ? __fget_light+0x6b9/0x710 [ 69.157986] SYSC_recvmsg+0x298/0x3c0 [ 69.161806] SyS_recvmsg+0x54/0x80 [ 69.165353] do_syscall_64+0x309/0x430 [ 69.169254] ? ___sys_recvmsg+0x810/0x810 [ 69.173419] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 69.178621] RIP: 0033:0x455389 [ 69.181820] RSP: 002b:00007f92bc63dc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 69.189546] RAX: ffffffffffffffda RBX: 00007f92bc63e6d4 RCX: 0000000000455389 [ 69.196826] RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000013 [ 69.204110] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 69.211393] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 69.218671] R13: 000000000000049f R14: 00000000006f9f88 R15: 0000000000000000 [ 69.225956] [ 69.227590] Local variable description: ----addr@___sys_recvmsg [ 69.233650] Variable was created at: [ 69.237401] ___sys_recvmsg+0xd5/0x810 [ 69.241310] SYSC_recvmsg+0x298/0x3c0 [ 69.245106] [ 69.246733] Bytes 8-15 of 16 are uninitialized [ 69.251309] ================================================================== [ 69.258676] Disabling lock debugging due to kernel taint [ 69.264140] Kernel panic - not syncing: panic_on_warn set ... [ 69.264140] [ 69.271530] CPU: 0 PID: 5677 Comm: syz-executor4 Tainted: G B 4.16.0+ #84 [ 69.279679] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 69.289049] Call Trace: [ 69.291665] dump_stack+0x185/0x1d0 [ 69.295310] panic+0x39d/0x940 [ 69.298535] ? kmsan_internal_check_memory+0x155/0x1e0 [ 69.303825] kmsan_report+0x238/0x240 [ 69.307644] kmsan_internal_check_memory+0x174/0x1e0 [ 69.312759] kmsan_copy_to_user+0x69/0x160 [ 69.317008] move_addr_to_user+0x32e/0x530 [ 69.321259] ___sys_recvmsg+0x4e2/0x810 [ 69.325247] ? __fget_light+0x56/0x710 [ 69.329141] ? __fdget+0x4e/0x60 [ 69.332524] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 69.337904] ? __fget_light+0x6b9/0x710 [ 69.341925] SYSC_recvmsg+0x298/0x3c0 [ 69.345759] SyS_recvmsg+0x54/0x80 [ 69.349308] do_syscall_64+0x309/0x430 [ 69.353212] ? ___sys_recvmsg+0x810/0x810 [ 69.357355] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 69.362532] RIP: 0033:0x455389 [ 69.365703] RSP: 002b:00007f92bc63dc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002f [ 69.373395] RAX: ffffffffffffffda RBX: 00007f92bc63e6d4 RCX: 0000000000455389 [ 69.380667] RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000013 [ 69.387934] RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 [ 69.395190] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 69.402458] R13: 000000000000049f R14: 00000000006f9f88 R15: 0000000000000000 [ 69.410142] Dumping ftrace buffer: [ 69.413679] (ftrace buffer empty) [ 69.417368] Kernel Offset: disabled [ 69.420974] Rebooting in 86400 seconds..