[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 63.557410] audit: type=1800 audit(1543414721.610:25): pid=6615 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 63.576478] audit: type=1800 audit(1543414721.610:26): pid=6615 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 63.595954] audit: type=1800 audit(1543414721.640:27): pid=6615 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] 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 '10.128.15.213' (ECDSA) to the list of known hosts. 2018/11/28 14:18:59 parsed 1 programs 2018/11/28 14:19:17 executed programs: 0 syzkaller login: [ 99.720564] IPVS: ftp: loaded support on port[0] = 21 [ 99.773437] IPVS: ftp: loaded support on port[0] = 21 [ 99.787286] IPVS: ftp: loaded support on port[0] = 21 [ 99.798367] IPVS: ftp: loaded support on port[0] = 21 [ 99.836423] IPVS: ftp: loaded support on port[0] = 21 [ 99.849667] IPVS: ftp: loaded support on port[0] = 21 [ 100.977600] ip (6861) used greatest stack depth: 53456 bytes left [ 102.768079] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.774759] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.783570] device bridge_slave_0 entered promiscuous mode [ 102.843424] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.849900] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.858739] device bridge_slave_0 entered promiscuous mode [ 102.942434] bridge0: port 1(bridge_slave_0) entered blocking state [ 102.948886] bridge0: port 1(bridge_slave_0) entered disabled state [ 102.957646] device bridge_slave_0 entered promiscuous mode [ 103.000381] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.007069] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.015831] device bridge_slave_1 entered promiscuous mode [ 103.049010] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.055707] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.064397] device bridge_slave_1 entered promiscuous mode [ 103.137627] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.144301] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.152897] device bridge_slave_1 entered promiscuous mode [ 103.208288] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.235613] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.242373] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.250950] device bridge_slave_0 entered promiscuous mode [ 103.334473] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.370982] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.382800] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.486301] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.492945] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.501542] device bridge_slave_1 entered promiscuous mode [ 103.508981] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.515606] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.524351] device bridge_slave_0 entered promiscuous mode [ 103.536793] bridge0: port 1(bridge_slave_0) entered blocking state [ 103.543470] bridge0: port 1(bridge_slave_0) entered disabled state [ 103.552057] device bridge_slave_0 entered promiscuous mode [ 103.566643] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.580549] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.669714] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.718701] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.725320] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.734023] device bridge_slave_1 entered promiscuous mode [ 103.820176] bridge0: port 2(bridge_slave_1) entered blocking state [ 103.826781] bridge0: port 2(bridge_slave_1) entered disabled state [ 103.835544] device bridge_slave_1 entered promiscuous mode [ 103.850808] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 103.938902] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 103.952554] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 104.050743] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 104.109857] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 104.145775] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 104.161457] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 104.210918] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 104.240122] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 104.339939] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 104.348966] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 104.368768] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 104.400991] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 104.419579] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 104.523077] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 104.539907] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 104.597811] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 104.605033] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 104.666600] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 104.776166] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 104.819088] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 104.826808] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 104.888087] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 104.895349] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 104.923428] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 105.008667] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 105.044185] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 105.052769] team0: Port device team_slave_0 added [ 105.072969] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 105.079997] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 105.160972] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 105.237073] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 105.244399] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 105.284944] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 105.293166] team0: Port device team_slave_1 added [ 105.387905] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 105.396337] team0: Port device team_slave_0 added [ 105.417323] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 105.427176] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 105.439444] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 105.446533] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 105.461306] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 105.469601] team0: Port device team_slave_0 added [ 105.548307] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 105.557231] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 105.566440] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 105.665029] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 105.672399] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 105.714426] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 105.723362] team0: Port device team_slave_1 added [ 105.773256] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 105.781411] team0: Port device team_slave_0 added [ 105.823617] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 105.834878] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 105.843602] team0: Port device team_slave_1 added [ 105.965786] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 105.973037] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 105.982293] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 106.050892] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 106.059219] team0: Port device team_slave_1 added [ 106.070502] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 106.081936] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 106.090864] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 106.103529] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 106.134709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 106.144296] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 106.217350] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 106.225782] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 106.234793] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 106.246368] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 106.254931] team0: Port device team_slave_0 added [ 106.279701] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 106.287466] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 106.296725] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 106.317833] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 106.327248] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 106.334718] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 106.343791] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 106.352387] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 106.361454] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 106.390163] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 106.398605] team0: Port device team_slave_0 added [ 106.456161] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 106.486302] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 106.494541] team0: Port device team_slave_1 added [ 106.505715] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 106.515014] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 106.549345] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 106.565688] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 106.584941] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 106.594405] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 106.603093] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 106.612068] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 106.693762] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 106.700852] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 106.710198] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 106.722008] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 106.730081] team0: Port device team_slave_1 added [ 106.751225] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 106.762092] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 106.771073] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 106.787795] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 106.812282] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 106.833571] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 106.842866] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 106.851460] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 106.860627] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 106.877840] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 106.972408] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 106.981447] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 107.025310] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 107.045338] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 107.054491] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 107.072806] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 107.114085] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 107.123695] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 107.164299] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 107.182576] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 107.191512] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 107.313204] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 107.320271] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 107.329316] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 107.393960] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 107.401797] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 107.410770] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 107.488106] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 107.495880] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 107.504863] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 107.729185] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 107.736935] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 107.746266] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 108.572149] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.578632] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.585948] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.592541] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.600833] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 108.852001] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 109.004821] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.011276] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.018357] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.024905] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.033769] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 109.091507] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.098089] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.105239] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.111861] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.120309] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 109.135236] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.141784] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.148721] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.155333] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.164516] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 109.588973] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.595554] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.602611] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.609084] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.618187] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 109.695329] bridge0: port 2(bridge_slave_1) entered blocking state [ 109.701876] bridge0: port 2(bridge_slave_1) entered forwarding state [ 109.708785] bridge0: port 1(bridge_slave_0) entered blocking state [ 109.715458] bridge0: port 1(bridge_slave_0) entered forwarding state [ 109.724292] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 109.932628] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 109.940701] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 109.948925] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 109.957160] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 109.966204] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 116.362229] 8021q: adding VLAN 0 to HW filter on device bond0 [ 116.539262] 8021q: adding VLAN 0 to HW filter on device bond0 [ 116.561224] 8021q: adding VLAN 0 to HW filter on device bond0 [ 116.643925] 8021q: adding VLAN 0 to HW filter on device bond0 [ 117.076586] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.087010] 8021q: adding VLAN 0 to HW filter on device bond0 [ 117.233048] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.315289] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.325734] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.589481] 8021q: adding VLAN 0 to HW filter on device bond0 [ 117.734446] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.740843] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.749132] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 117.826389] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 117.859786] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 117.866286] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 117.874257] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.011840] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 118.018179] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 118.026450] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.050691] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 118.092698] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 118.100527] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.396565] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 118.556308] 8021q: adding VLAN 0 to HW filter on device team0 [ 118.574887] 8021q: adding VLAN 0 to HW filter on device team0 [ 118.630417] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 118.636947] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 118.645545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 118.665529] 8021q: adding VLAN 0 to HW filter on device team0 [ 118.795192] 8021q: adding VLAN 0 to HW filter on device team0 [ 119.095088] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 119.101493] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 119.109724] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 119.325079] 8021q: adding VLAN 0 to HW filter on device team0 [ 119.714318] 8021q: adding VLAN 0 to HW filter on device team0 [ 122.944986] netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. [ 123.004650] ================================================================== [ 123.012055] BUG: KMSAN: kernel-infoleak in _copy_to_iter+0x4c0/0x2700 [ 123.018666] CPU: 1 PID: 8300 Comm: syz-executor3 Not tainted 4.20.0-rc3+ #95 [ 123.025876] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.035246] Call Trace: [ 123.037870] dump_stack+0x32d/0x480 [ 123.041548] ? _copy_to_iter+0x4c0/0x2700 [ 123.045763] ? internal_move_pointers_items+0x520/0xa50 [ 123.051174] kmsan_report+0x12c/0x290 [ 123.055004] kmsan_internal_check_memory+0x32a/0xa50 [ 123.060173] kmsan_copy_to_user+0x78/0xd0 [ 123.064392] _copy_to_iter+0x4c0/0x2700 [ 123.068466] skb_copy_datagram_iter+0x4e2/0x1070 [ 123.073290] netlink_recvmsg+0x6f9/0x19d0 [ 123.077493] ? netlink_sendmsg+0x1440/0x1440 [ 123.081922] __sys_recvfrom+0x6d3/0x910 [ 123.085960] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 123.091427] ? prepare_exit_to_usermode+0x182/0x4c0 [ 123.096473] __se_sys_recvfrom+0x111/0x130 [ 123.100744] __x64_sys_recvfrom+0x6e/0x90 [ 123.104911] do_syscall_64+0xcf/0x110 [ 123.108733] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 123.113935] RIP: 0033:0x457569 [ 123.117162] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 123.136080] RSP: 002b:00007fd9088c0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 123.143817] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457569 [ 123.151099] RDX: 000000000000007b RSI: 0000000020000040 RDI: 0000000000000003 [ 123.158389] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 123.165676] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9088c16d4 [ 123.172987] R13: 00000000004c3988 R14: 00000000004d5f08 R15: 00000000ffffffff [ 123.180299] [ 123.181933] Uninit was stored to memory at: [ 123.186270] kmsan_internal_chain_origin+0x13d/0x240 [ 123.191387] kmsan_memcpy_memmove_metadata+0x1a9/0xf70 [ 123.196678] kmsan_memcpy_metadata+0xb/0x10 [ 123.201018] __msan_memcpy+0x61/0x70 [ 123.204752] nla_put+0x20a/0x2d0 [ 123.208139] nlmsg_populate_fdb_fill+0x444/0x810 [ 123.212917] ndo_dflt_fdb_dump+0x73a/0x960 [ 123.217164] rtnl_fdb_dump+0x1318/0x1cb0 [ 123.221243] netlink_dump+0xc79/0x1c90 [ 123.225156] __netlink_dump_start+0x10c4/0x11d0 [ 123.229837] rtnetlink_rcv_msg+0x141b/0x1540 [ 123.234264] netlink_rcv_skb+0x394/0x640 [ 123.238339] rtnetlink_rcv+0x50/0x60 [ 123.242066] netlink_unicast+0x1699/0x1740 [ 123.246321] netlink_sendmsg+0x13c7/0x1440 [ 123.250571] ___sys_sendmsg+0xe3b/0x1240 [ 123.254661] __se_sys_sendmsg+0x305/0x460 [ 123.258850] __x64_sys_sendmsg+0x4a/0x70 [ 123.262951] do_syscall_64+0xcf/0x110 [ 123.266772] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 123.271982] [ 123.273626] Uninit was created at: [ 123.277185] kmsan_internal_poison_shadow+0x6d/0x130 [ 123.282302] kmsan_kmalloc+0xa1/0x100 [ 123.286120] __kmalloc+0x14c/0x4d0 [ 123.289685] __dev_mc_add+0x357/0x8a0 [ 123.293502] dev_mc_add+0x6d/0x80 [ 123.296968] igmp_group_added+0x4d4/0xb80 [ 123.301137] __ip_mc_inc_group+0xea9/0xf70 [ 123.305391] ip_mc_up+0x1c3/0x400 [ 123.308855] inetdev_event+0x1d03/0x1d80 [ 123.312943] raw_notifier_call_chain+0x13d/0x240 [ 123.317710] __dev_notify_flags+0x3da/0x860 [ 123.322047] dev_change_flags+0x1ac/0x230 [ 123.326227] do_setlink+0x165f/0x5ea0 [ 123.330055] rtnl_newlink+0x2ad7/0x35a0 [ 123.334059] rtnetlink_rcv_msg+0x1148/0x1540 [ 123.338503] netlink_rcv_skb+0x394/0x640 [ 123.342576] rtnetlink_rcv+0x50/0x60 [ 123.346301] netlink_unicast+0x1699/0x1740 [ 123.350548] netlink_sendmsg+0x13c7/0x1440 [ 123.354817] ___sys_sendmsg+0xe3b/0x1240 [ 123.358911] __se_sys_sendmsg+0x305/0x460 [ 123.363077] __x64_sys_sendmsg+0x4a/0x70 [ 123.367181] do_syscall_64+0xcf/0x110 [ 123.370997] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 123.376187] [ 123.377824] Bytes 36-37 of 123 are uninitialized [ 123.382585] Memory access of size 123 starts at ffff888186ebc000 [ 123.388734] Data copied to user address 0000000020000040 [ 123.394182] ================================================================== [ 123.401555] Disabling lock debugging due to kernel taint [ 123.407018] Kernel panic - not syncing: panic_on_warn set ... [ 123.412920] CPU: 1 PID: 8300 Comm: syz-executor3 Tainted: G B 4.20.0-rc3+ #95 [ 123.421499] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 123.430861] Call Trace: [ 123.433471] dump_stack+0x32d/0x480 [ 123.437142] panic+0x624/0xc08 [ 123.440401] kmsan_report+0x28a/0x290 [ 123.444238] kmsan_internal_check_memory+0x32a/0xa50 [ 123.449406] kmsan_copy_to_user+0x78/0xd0 [ 123.453579] _copy_to_iter+0x4c0/0x2700 [ 123.457671] skb_copy_datagram_iter+0x4e2/0x1070 [ 123.462495] netlink_recvmsg+0x6f9/0x19d0 [ 123.466711] ? netlink_sendmsg+0x1440/0x1440 [ 123.471143] __sys_recvfrom+0x6d3/0x910 [ 123.475190] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 123.480660] ? prepare_exit_to_usermode+0x182/0x4c0 [ 123.485708] __se_sys_recvfrom+0x111/0x130 [ 123.489981] __x64_sys_recvfrom+0x6e/0x90 [ 123.494169] do_syscall_64+0xcf/0x110 [ 123.497995] entry_SYSCALL_64_after_hwframe+0x63/0xe7 [ 123.503201] RIP: 0033:0x457569 [ 123.506413] Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 123.525343] RSP: 002b:00007fd9088c0c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002d [ 123.533069] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457569 [ 123.540358] RDX: 000000000000007b RSI: 0000000020000040 RDI: 0000000000000003 [ 123.547655] RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 [ 123.554955] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd9088c16d4 [ 123.562240] R13: 00000000004c3988 R14: 00000000004d5f08 R15: 00000000ffffffff [ 123.570515] Kernel Offset: disabled [ 123.574158] Rebooting in 86400 seconds..