Warning: Permanently added '10.128.0.89' (ECDSA) to the list of known hosts. 2018/12/04 16:11:33 parsed 1 programs 2018/12/04 16:11:36 executed programs: 0 syzkaller login: [ 173.693919] IPVS: ftp: loaded support on port[0] = 21 [ 173.710787] IPVS: ftp: loaded support on port[0] = 21 [ 173.715803] IPVS: ftp: loaded support on port[0] = 21 [ 173.721794] IPVS: ftp: loaded support on port[0] = 21 [ 173.727760] IPVS: ftp: loaded support on port[0] = 21 [ 173.733401] IPVS: ftp: loaded support on port[0] = 21 [ 174.510803] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.525251] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.532565] device bridge_slave_0 entered promiscuous mode [ 174.575944] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.583343] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.594806] device bridge_slave_1 entered promiscuous mode [ 174.609002] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.616230] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.623270] device bridge_slave_0 entered promiscuous mode [ 174.631894] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.639976] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.647384] device bridge_slave_0 entered promiscuous mode [ 174.658066] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.664421] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.672588] device bridge_slave_0 entered promiscuous mode [ 174.680657] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.688348] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.695492] device bridge_slave_0 entered promiscuous mode [ 174.703411] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 174.724790] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.732326] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.740487] device bridge_slave_1 entered promiscuous mode [ 174.747583] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.753917] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.761479] device bridge_slave_1 entered promiscuous mode [ 174.769562] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.779344] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.786530] device bridge_slave_1 entered promiscuous mode [ 174.794043] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 174.802886] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.810773] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.818517] device bridge_slave_1 entered promiscuous mode [ 174.825851] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 174.833343] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 174.845135] bridge0: port 1(bridge_slave_0) entered blocking state [ 174.851492] bridge0: port 1(bridge_slave_0) entered disabled state [ 174.866593] device bridge_slave_0 entered promiscuous mode [ 174.874288] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 174.888711] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 174.902347] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 174.914005] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 174.927947] bridge0: port 2(bridge_slave_1) entered blocking state [ 174.934339] bridge0: port 2(bridge_slave_1) entered disabled state [ 174.941636] device bridge_slave_1 entered promiscuous mode [ 174.948244] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 174.983379] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 174.999380] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 175.014210] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 175.036121] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 175.051974] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 175.088513] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 175.114304] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 175.135147] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 175.173923] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 175.186105] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 175.197032] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 175.206639] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 175.246959] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 175.260409] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 175.276895] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 175.289936] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 175.300979] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 175.316477] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 175.331881] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 175.342787] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 175.379216] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 175.391017] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 175.400436] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 175.412794] team0: Port device team_slave_0 added [ 175.419039] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready [ 175.429521] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 175.437779] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready [ 175.458886] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 175.472607] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 175.482676] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 175.496566] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 175.522679] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 175.531824] team0: Port device team_slave_1 added [ 175.539277] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bond: link is not ready [ 175.581456] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bond: link becomes ready [ 175.597376] IPv6: ADDRCONF(NETDEV_UP): veth0_to_team: link is not ready [ 175.605991] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_team: link becomes ready [ 175.614421] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 175.642899] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 175.651629] team0: Port device team_slave_0 added [ 175.658782] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 175.668979] team0: Port device team_slave_0 added [ 175.703603] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 175.722670] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 175.740294] team0: Port device team_slave_0 added [ 175.750359] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 175.759378] team0: Port device team_slave_1 added [ 175.767873] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 175.776514] team0: Port device team_slave_1 added [ 175.784404] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 175.803691] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 175.819332] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 175.837194] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 175.844634] team0: Port device team_slave_0 added [ 175.858732] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 175.875522] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 175.883572] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 175.905760] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 175.918857] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 175.927592] team0: Port device team_slave_1 added [ 175.937328] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 175.944837] team0: Port device team_slave_0 added [ 175.953850] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 175.962386] team0: Port device team_slave_1 added [ 175.976733] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 175.993581] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.015930] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 176.046198] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.056391] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 176.063874] team0: Port device team_slave_1 added [ 176.083023] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 176.101583] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.122757] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 176.136426] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 176.144537] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 176.173440] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 176.192218] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.207129] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 176.216391] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 176.224768] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 176.235899] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 176.243456] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 176.255745] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 176.263879] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 176.279889] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.289407] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 176.300087] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 176.313634] IPv6: ADDRCONF(NETDEV_UP): veth1_to_team: link is not ready [ 176.322208] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.335603] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 176.351821] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_team: link becomes ready [ 176.360578] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.370510] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 176.384002] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 176.397193] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 176.408092] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 176.431686] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 176.441775] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 176.450665] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 176.466017] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.474052] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 176.493203] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 176.510475] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 176.523514] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.534544] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 176.551841] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.565307] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 176.894772] bridge0: port 2(bridge_slave_1) entered blocking state [ 176.901430] bridge0: port 2(bridge_slave_1) entered forwarding state [ 176.908617] bridge0: port 1(bridge_slave_0) entered blocking state [ 176.915041] bridge0: port 1(bridge_slave_0) entered forwarding state [ 176.931480] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 177.229669] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.236119] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.242801] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.249280] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.265463] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 177.272012] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 177.281494] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 177.293991] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.300470] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.307216] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.313591] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.325943] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 177.336884] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.343282] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.350082] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.356500] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.378632] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 177.464567] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.471043] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.477790] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.484189] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.495819] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 177.505656] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.512038] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.518809] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.525231] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.543526] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 178.326054] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 178.342672] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 178.356899] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 178.367587] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 180.182512] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.246164] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.257121] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.285329] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.396217] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.457893] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 180.485592] 8021q: adding VLAN 0 to HW filter on device bond0 [ 180.494814] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 180.541455] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 180.599327] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 180.701836] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 180.716848] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 180.723045] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 180.734551] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 180.766688] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 180.825700] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 180.832251] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 180.841319] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 180.860634] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 180.882408] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 180.890192] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 180.919730] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 180.941143] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 180.952432] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 181.027920] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 181.040289] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 181.049552] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 181.059131] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 181.076470] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 181.083660] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 181.105556] 8021q: adding VLAN 0 to HW filter on device team0 [ 181.180167] 8021q: adding VLAN 0 to HW filter on device team0 [ 181.189679] 8021q: adding VLAN 0 to HW filter on device team0 [ 181.266644] 8021q: adding VLAN 0 to HW filter on device team0 [ 181.277152] 8021q: adding VLAN 0 to HW filter on device team0 [ 181.352298] 8021q: adding VLAN 0 to HW filter on device team0 2018/12/04 16:11:45 executed programs: 6 2018/12/04 16:11:50 executed programs: 78 2018/12/04 16:11:55 executed programs: 151 2018/12/04 16:12:00 executed programs: 229 [ 200.597132] cgroup: fork rejected by pids controller in /syz1 [ 201.449717] cgroup: fork rejected by pids controller in /syz5 [ 201.613295] IPVS: ftp: loaded support on port[0] = 21 [ 201.861621] cgroup: fork rejected by pids controller in /syz3 [ 202.125401] bridge0: port 1(bridge_slave_0) entered blocking state [ 202.131858] bridge0: port 1(bridge_slave_0) entered disabled state [ 202.140427] device bridge_slave_0 entered promiscuous mode [ 202.176938] bridge0: port 2(bridge_slave_1) entered blocking state [ 202.183396] bridge0: port 2(bridge_slave_1) entered disabled state [ 202.191429] device bridge_slave_1 entered promiscuous mode [ 202.205879] device bridge_slave_1 left promiscuous mode [ 202.211833] bridge0: port 2(bridge_slave_1) entered disabled state [ 202.278930] device bridge_slave_0 left promiscuous mode [ 202.284401] bridge0: port 1(bridge_slave_0) entered disabled state [ 202.383862] team0 (unregistering): Port device team_slave_1 removed [ 202.394387] team0 (unregistering): Port device team_slave_0 removed [ 202.443394] bond0 (unregistering): Releasing backup interface bond_slave_1 [ 202.491782] bond0 (unregistering): Releasing backup interface bond_slave_0 [ 202.564701] bond0 (unregistering): Released all slaves [ 202.612171] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 202.639716] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 202.707697] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 202.753265] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 203.229273] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 203.275694] team0: Port device team_slave_0 added [ 203.367662] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 203.395355] team0: Port device team_slave_1 added [ 203.467007] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 203.576576] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 203.699873] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 203.725356] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 203.737442] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 203.806364] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 203.813554] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 203.824072] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 204.210717] bridge0: port 2(bridge_slave_1) entered blocking state [ 204.217153] bridge0: port 2(bridge_slave_1) entered forwarding state [ 204.223826] bridge0: port 1(bridge_slave_0) entered blocking state [ 204.230252] bridge0: port 1(bridge_slave_0) entered forwarding state [ 204.239178] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 204.635416] IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready [ 205.095522] 8021q: adding VLAN 0 to HW filter on device bond0 [ 205.153714] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 205.212149] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 205.218932] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 205.226649] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 205.278063] 8021q: adding VLAN 0 to HW filter on device team0 2018/12/04 16:12:08 executed programs: 300 [ 206.169307] cgroup: fork rejected by pids controller in /syz0 [ 206.177158] ================================================================== [ 206.184746] BUG: KASAN: use-after-free in get_mem_cgroup_from_mm.part.62+0x6d7/0x880 [ 206.195714] Read of size 8 at addr ffff8881c35df350 by task syz-executor0/10021 [ 206.203162] [ 206.204793] CPU: 0 PID: 10021 Comm: syz-executor0 Not tainted 4.20.0-rc5+ #141 [ 206.212144] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 206.221520] Call Trace: [ 206.224120] dump_stack+0x244/0x39d [ 206.227760] ? dump_stack_print_info.cold.1+0x20/0x20 [ 206.232965] ? printk+0xa7/0xcf [ 206.236263] ? kmsg_dump_rewind_nolock+0xe4/0xe4 [ 206.241029] print_address_description.cold.7+0x9/0x1ff [ 206.246405] kasan_report.cold.8+0x242/0x309 [ 206.250818] ? get_mem_cgroup_from_mm.part.62+0x6d7/0x880 [ 206.256365] __asan_report_load8_noabort+0x14/0x20 [ 206.261306] get_mem_cgroup_from_mm.part.62+0x6d7/0x880 [ 206.266681] ? lock_page_memcg+0x350/0x350 [ 206.270926] ? kasan_check_write+0x14/0x20 [ 206.275175] ? lock_acquire+0x1ed/0x520 [ 206.279164] ? mem_cgroup_oom_control_write+0x100/0x100 [ 206.284544] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.290090] ? check_preemption_disabled+0x48/0x280 [ 206.295122] ? kasan_check_read+0x11/0x20 [ 206.299271] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 206.304551] ? rcu_softirq_qs+0x20/0x20 [ 206.308546] mem_cgroup_try_charge+0x608/0xe20 [ 206.313130] ? retint_kernel+0x2d/0x2d [ 206.317025] ? find_held_lock+0x36/0x1c0 [ 206.321096] ? mem_cgroup_protected+0xa60/0xa60 [ 206.325775] ? lock_acquire+0x1ed/0x520 [ 206.329754] ? mcopy_atomic+0x293/0x2c70 [ 206.333826] ? lock_release+0xa00/0xa00 [ 206.337805] ? perf_trace_sched_process_exec+0x860/0x860 [ 206.343275] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 206.348039] ? __do_page_fault+0x64e/0xe60 [ 206.352290] ? down_read+0x8d/0x120 [ 206.355924] ? vmacache_find+0x61/0x310 [ 206.359905] ? vmacache_update+0x74/0x140 [ 206.364062] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 206.369619] mcopy_atomic+0xb08/0x2c70 [ 206.373541] ? mm_alloc_pmd+0x2f0/0x2f0 [ 206.377523] ? account_entity_enqueue+0x3a3/0x660 [ 206.382378] ? zap_class+0x640/0x640 [ 206.386107] ? finish_task_switch+0x1f4/0x910 [ 206.390621] ? _raw_write_unlock_irq+0x50/0x80 [ 206.395218] ? find_held_lock+0x36/0x1c0 [ 206.399297] ? __might_fault+0x12b/0x1e0 [ 206.403362] ? lock_downgrade+0x900/0x900 [ 206.407520] ? lock_release+0xa00/0xa00 [ 206.411496] ? perf_trace_sched_process_exec+0x860/0x860 [ 206.416981] ? finish_task_switch+0x1f4/0x910 [ 206.421488] ? finish_task_switch+0x1b4/0x910 [ 206.425990] ? __switch_to_asm+0x34/0x70 [ 206.430079] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 206.435650] ? _copy_from_user+0xdf/0x150 [ 206.439808] userfaultfd_ioctl+0x29fb/0x5610 [ 206.444231] ? __sched_text_start+0x8/0x8 [ 206.448398] ? check_preemption_disabled+0x48/0x280 [ 206.453436] ? userfaultfd_read+0x2c0/0x2c0 [ 206.457789] ? find_held_lock+0x36/0x1c0 [ 206.461864] ? try_to_wake_up+0x11c/0x1440 [ 206.466108] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 206.471221] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 206.476345] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 206.480934] ? preempt_schedule+0x4d/0x60 [ 206.485090] ? preempt_schedule_common+0x1f/0xe0 [ 206.489893] ? preempt_schedule+0x4d/0x60 [ 206.494052] ? ___preempt_schedule+0x16/0x18 [ 206.498490] ? _raw_spin_unlock_irqrestore+0xbb/0xd0 [ 206.503616] ? try_to_wake_up+0x11c/0x1440 [ 206.507868] ? zap_class+0x640/0x640 [ 206.511580] ? trace_hardirqs_off_caller+0x310/0x310 [ 206.516687] ? print_usage_bug+0xc0/0xc0 [ 206.520752] ? migrate_swap_stop+0x8a0/0x8a0 [ 206.525205] ? find_held_lock+0x36/0x1c0 [ 206.529281] ? __lock_acquire+0x62f/0x4c20 [ 206.533518] ? lock_downgrade+0x900/0x900 [ 206.537703] ? mark_held_locks+0x130/0x130 [ 206.541955] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 206.547065] ? futex_wake+0x304/0x760 [ 206.550885] ? __lock_acquire+0x62f/0x4c20 [ 206.555124] ? __lock_acquire+0x62f/0x4c20 [ 206.559376] ? mark_held_locks+0x130/0x130 [ 206.563616] ? zap_class+0x640/0x640 [ 206.567335] ? do_futex+0x249/0x26d0 [ 206.571072] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 206.576542] ? find_held_lock+0x36/0x1c0 [ 206.580620] ? __fget+0x4aa/0x740 [ 206.584081] ? lock_downgrade+0x900/0x900 [ 206.588243] ? check_preemption_disabled+0x48/0x280 [ 206.593272] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 206.598228] ? kasan_check_read+0x11/0x20 [ 206.602396] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 206.607683] ? rcu_softirq_qs+0x20/0x20 [ 206.611673] ? __fget+0x4d1/0x740 [ 206.615138] ? ksys_dup3+0x680/0x680 [ 206.618860] ? __might_fault+0x12b/0x1e0 [ 206.622930] ? lock_downgrade+0x900/0x900 [ 206.627091] ? lock_release+0xa00/0xa00 [ 206.631066] ? userfaultfd_read+0x2c0/0x2c0 [ 206.635394] do_vfs_ioctl+0x1de/0x1790 [ 206.639281] ? do_vfs_ioctl+0x1de/0x1790 [ 206.643351] ? ioctl_preallocate+0x300/0x300 [ 206.647782] ? __fget_light+0x2e9/0x430 [ 206.651781] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.657339] ? smack_file_ioctl+0x210/0x3c0 [ 206.661663] ? fget_raw+0x20/0x20 [ 206.665124] ? smack_file_lock+0x2e0/0x2e0 [ 206.669365] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 206.674903] ? put_timespec64+0x10f/0x1b0 [ 206.679075] ? nsecs_to_jiffies+0x30/0x30 [ 206.683227] ? do_syscall_64+0x9a/0x820 [ 206.687215] ? do_syscall_64+0x9a/0x820 [ 206.691206] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 206.696763] ? security_file_ioctl+0x94/0xc0 [ 206.701176] ksys_ioctl+0xa9/0xd0 [ 206.704665] __x64_sys_ioctl+0x73/0xb0 [ 206.708559] do_syscall_64+0x1b9/0x820 [ 206.712453] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 206.717828] ? syscall_return_slowpath+0x5e0/0x5e0 [ 206.722778] ? trace_hardirqs_on_caller+0x310/0x310 [ 206.727848] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 206.732886] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 206.739579] ? __switch_to_asm+0x40/0x70 [ 206.743653] ? __switch_to_asm+0x34/0x70 [ 206.747727] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 206.752582] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 206.757784] RIP: 0033:0x457569 [ 206.760999] 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 [ 206.779905] RSP: 002b:00007fce254a5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 206.787636] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 206.794912] RDX: 0000000020000100 RSI: 00000000c028aa03 RDI: 0000000000000004 [ 206.802193] RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 [ 206.809472] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fce254a66d4 [ 206.816748] R13: 00000000004c14eb R14: 00000000004d2870 R15: 00000000ffffffff [ 206.824039] [ 206.825688] Allocated by task 10014: [ 206.829413] save_stack+0x43/0xd0 [ 206.832901] kasan_kmalloc+0xc7/0xe0 [ 206.836644] kasan_slab_alloc+0x12/0x20 [ 206.840632] kmem_cache_alloc_node+0x144/0x730 [ 206.845224] copy_process+0x2026/0x87a0 [ 206.849223] _do_fork+0x1cb/0x11d0 [ 206.852768] __x64_sys_clone+0xbf/0x150 [ 206.856755] do_syscall_64+0x1b9/0x820 [ 206.860649] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 206.865830] [ 206.867456] Freed by task 10014: [ 206.870840] save_stack+0x43/0xd0 [ 206.874301] __kasan_slab_free+0x102/0x150 [ 206.878542] kasan_slab_free+0xe/0x10 [ 206.882350] kmem_cache_free+0x83/0x290 [ 206.886330] free_task+0x16e/0x1f0 [ 206.889875] copy_process+0x1dcc/0x87a0 [ 206.893849] _do_fork+0x1cb/0x11d0 [ 206.897393] __x64_sys_clone+0xbf/0x150 [ 206.901370] do_syscall_64+0x1b9/0x820 [ 206.905260] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 206.910442] [ 206.912084] The buggy address belongs to the object at ffff8881c35de280 [ 206.912084] which belongs to the cache task_struct(65:syz0) of size 6080 [ 206.925631] The buggy address is located 4304 bytes inside of [ 206.925631] 6080-byte region [ffff8881c35de280, ffff8881c35dfa40) [ 206.937690] The buggy address belongs to the page: [ 206.942627] page:ffffea00070d7780 count:1 mapcount:0 mapping:ffff8881bf3bb6c0 index:0x0 compound_mapcount: 0 [ 206.952606] flags: 0x2fffc0000010200(slab|head) [ 206.957283] raw: 02fffc0000010200 ffffea00072d4788 ffffea0006cf8408 ffff8881bf3bb6c0 [ 206.965174] raw: 0000000000000000 ffff8881c35de280 0000000100000001 ffff8881b76d07c0 [ 206.973061] page dumped because: kasan: bad access detected [ 206.978771] page->mem_cgroup:ffff8881b76d07c0 [ 206.983260] [ 206.984876] Memory state around the buggy address: [ 206.989806] ffff8881c35df200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 206.997167] ffff8881c35df280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 207.004547] >ffff8881c35df300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 207.011906] ^ [ 207.017910] ffff8881c35df380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 207.025273] ffff8881c35df400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 207.032648] ================================================================== [ 207.040153] Disabling lock debugging due to kernel taint [ 207.051156] Kernel panic - not syncing: panic_on_warn set ... [ 207.057075] CPU: 0 PID: 10021 Comm: syz-executor0 Tainted: G B 4.20.0-rc5+ #141 [ 207.065829] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 207.075181] Call Trace: [ 207.077770] dump_stack+0x244/0x39d [ 207.081397] ? dump_stack_print_info.cold.1+0x20/0x20 [ 207.086579] panic+0x2ad/0x55c [ 207.089754] ? add_taint.cold.5+0x16/0x16 [ 207.093915] ? preempt_schedule+0x4d/0x60 [ 207.098060] ? ___preempt_schedule+0x16/0x18 [ 207.102461] ? trace_hardirqs_on+0xb4/0x310 [ 207.106767] kasan_end_report+0x47/0x4f [ 207.110751] kasan_report.cold.8+0x76/0x309 [ 207.115066] ? get_mem_cgroup_from_mm.part.62+0x6d7/0x880 [ 207.120593] __asan_report_load8_noabort+0x14/0x20 [ 207.125508] get_mem_cgroup_from_mm.part.62+0x6d7/0x880 [ 207.130857] ? lock_page_memcg+0x350/0x350 [ 207.135076] ? kasan_check_write+0x14/0x20 [ 207.139295] ? lock_acquire+0x1ed/0x520 [ 207.143255] ? mem_cgroup_oom_control_write+0x100/0x100 [ 207.148602] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 207.154124] ? check_preemption_disabled+0x48/0x280 [ 207.159128] ? kasan_check_read+0x11/0x20 [ 207.163270] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 207.168530] ? rcu_softirq_qs+0x20/0x20 [ 207.172523] mem_cgroup_try_charge+0x608/0xe20 [ 207.177095] ? retint_kernel+0x2d/0x2d [ 207.180997] ? find_held_lock+0x36/0x1c0 [ 207.185062] ? mem_cgroup_protected+0xa60/0xa60 [ 207.189731] ? lock_acquire+0x1ed/0x520 [ 207.193693] ? mcopy_atomic+0x293/0x2c70 [ 207.197755] ? lock_release+0xa00/0xa00 [ 207.201713] ? perf_trace_sched_process_exec+0x860/0x860 [ 207.207167] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 207.211939] ? __do_page_fault+0x64e/0xe60 [ 207.216164] ? down_read+0x8d/0x120 [ 207.219786] ? vmacache_find+0x61/0x310 [ 207.223741] ? vmacache_update+0x74/0x140 [ 207.227887] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 207.233427] mcopy_atomic+0xb08/0x2c70 [ 207.237322] ? mm_alloc_pmd+0x2f0/0x2f0 [ 207.241283] ? account_entity_enqueue+0x3a3/0x660 [ 207.246130] ? zap_class+0x640/0x640 [ 207.249870] ? finish_task_switch+0x1f4/0x910 [ 207.254352] ? _raw_write_unlock_irq+0x50/0x80 [ 207.258919] ? find_held_lock+0x36/0x1c0 [ 207.262968] ? __might_fault+0x12b/0x1e0 [ 207.267014] ? lock_downgrade+0x900/0x900 [ 207.271150] ? lock_release+0xa00/0xa00 [ 207.275123] ? perf_trace_sched_process_exec+0x860/0x860 [ 207.280582] ? finish_task_switch+0x1f4/0x910 [ 207.285063] ? finish_task_switch+0x1b4/0x910 [ 207.289541] ? __switch_to_asm+0x34/0x70 [ 207.293594] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 207.299121] ? _copy_from_user+0xdf/0x150 [ 207.303255] userfaultfd_ioctl+0x29fb/0x5610 [ 207.307653] ? __sched_text_start+0x8/0x8 [ 207.311811] ? check_preemption_disabled+0x48/0x280 [ 207.316816] ? userfaultfd_read+0x2c0/0x2c0 [ 207.321132] ? find_held_lock+0x36/0x1c0 [ 207.325193] ? try_to_wake_up+0x11c/0x1440 [ 207.329422] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 207.334515] ? _raw_spin_unlock_irqrestore+0x82/0xd0 [ 207.339605] ? lockdep_hardirqs_on+0x3bb/0x5b0 [ 207.344172] ? preempt_schedule+0x4d/0x60 [ 207.348314] ? preempt_schedule_common+0x1f/0xe0 [ 207.353055] ? preempt_schedule+0x4d/0x60 [ 207.357197] ? ___preempt_schedule+0x16/0x18 [ 207.361596] ? _raw_spin_unlock_irqrestore+0xbb/0xd0 [ 207.366687] ? try_to_wake_up+0x11c/0x1440 [ 207.370922] ? zap_class+0x640/0x640 [ 207.374637] ? trace_hardirqs_off_caller+0x310/0x310 [ 207.379727] ? print_usage_bug+0xc0/0xc0 [ 207.383775] ? migrate_swap_stop+0x8a0/0x8a0 [ 207.388199] ? find_held_lock+0x36/0x1c0 [ 207.392250] ? __lock_acquire+0x62f/0x4c20 [ 207.396506] ? lock_downgrade+0x900/0x900 [ 207.400657] ? mark_held_locks+0x130/0x130 [ 207.404892] ? drop_futex_key_refs.isra.14+0x6d/0xe0 [ 207.410007] ? futex_wake+0x304/0x760 [ 207.413795] ? __lock_acquire+0x62f/0x4c20 [ 207.418022] ? __lock_acquire+0x62f/0x4c20 [ 207.422259] ? mark_held_locks+0x130/0x130 [ 207.426480] ? zap_class+0x640/0x640 [ 207.430180] ? do_futex+0x249/0x26d0 [ 207.433932] ? __bpf_trace_preemptirq_template+0x30/0x30 [ 207.439391] ? find_held_lock+0x36/0x1c0 [ 207.443441] ? __fget+0x4aa/0x740 [ 207.446889] ? lock_downgrade+0x900/0x900 [ 207.451034] ? check_preemption_disabled+0x48/0x280 [ 207.456052] ? rcu_read_unlock_special+0x1c0/0x1c0 [ 207.460977] ? kasan_check_read+0x11/0x20 [ 207.465107] ? rcu_dynticks_curr_cpu_in_eqs+0xa2/0x170 [ 207.470387] ? rcu_softirq_qs+0x20/0x20 [ 207.474350] ? __fget+0x4d1/0x740 [ 207.477789] ? ksys_dup3+0x680/0x680 [ 207.481488] ? __might_fault+0x12b/0x1e0 [ 207.485533] ? lock_downgrade+0x900/0x900 [ 207.489676] ? lock_release+0xa00/0xa00 [ 207.493652] ? userfaultfd_read+0x2c0/0x2c0 [ 207.498003] do_vfs_ioctl+0x1de/0x1790 [ 207.501877] ? do_vfs_ioctl+0x1de/0x1790 [ 207.505923] ? ioctl_preallocate+0x300/0x300 [ 207.510331] ? __fget_light+0x2e9/0x430 [ 207.514309] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 207.519832] ? smack_file_ioctl+0x210/0x3c0 [ 207.524154] ? fget_raw+0x20/0x20 [ 207.527594] ? smack_file_lock+0x2e0/0x2e0 [ 207.531824] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 207.537348] ? put_timespec64+0x10f/0x1b0 [ 207.541479] ? nsecs_to_jiffies+0x30/0x30 [ 207.545630] ? do_syscall_64+0x9a/0x820 [ 207.549594] ? do_syscall_64+0x9a/0x820 [ 207.553555] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 207.559081] ? security_file_ioctl+0x94/0xc0 [ 207.563490] ksys_ioctl+0xa9/0xd0 [ 207.566930] __x64_sys_ioctl+0x73/0xb0 [ 207.570806] do_syscall_64+0x1b9/0x820 [ 207.574680] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 207.580032] ? syscall_return_slowpath+0x5e0/0x5e0 [ 207.584967] ? trace_hardirqs_on_caller+0x310/0x310 [ 207.589976] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 207.594989] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 207.601653] ? __switch_to_asm+0x40/0x70 [ 207.605698] ? __switch_to_asm+0x34/0x70 [ 207.609748] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 207.614594] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 207.619768] RIP: 0033:0x457569 [ 207.622945] 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 [ 207.641836] RSP: 002b:00007fce254a5c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 207.649546] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000457569 [ 207.656805] RDX: 0000000020000100 RSI: 00000000c028aa03 RDI: 0000000000000004 [ 207.664062] RBP: 000000000072c040 R08: 0000000000000000 R09: 0000000000000000 [ 207.671333] R10: 0000000000000000 R11: 0000000000000246 R12: 00007fce254a66d4 [ 207.678587] R13: 00000000004c14eb R14: 00000000004d2870 R15: 00000000ffffffff [ 207.686917] Kernel Offset: disabled [ 207.690543] Rebooting in 86400 seconds..