[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.144' (ECDSA) to the list of known hosts. syzkaller login: [ 50.532131][ T8411] IPVS: ftp: loaded support on port[0] = 21 [ 50.562661][ T8411] chnl_net:caif_netlink_parms(): no params data found [ 50.581078][ T8411] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.588190][ T8411] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.596193][ T8411] device bridge_slave_0 entered promiscuous mode [ 50.603281][ T8411] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.610320][ T8411] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.618017][ T8411] device bridge_slave_1 entered promiscuous mode [ 50.628509][ T8411] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 50.638423][ T8411] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 50.651407][ T8411] team0: Port device team_slave_0 added [ 50.657692][ T8411] team0: Port device team_slave_1 added [ 50.667318][ T8411] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 50.674378][ T8411] batman_adv: batadv0: The MTU of interface batadv_slave_0 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.700376][ T8411] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 50.711527][ T8411] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 50.718536][ T8411] batman_adv: batadv0: The MTU of interface batadv_slave_1 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. [ 50.744445][ T8411] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 50.761245][ T8411] device hsr_slave_0 entered promiscuous mode [ 50.767656][ T8411] device hsr_slave_1 entered promiscuous mode [ 50.797127][ T8411] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 50.804627][ T8411] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 50.812283][ T8411] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 50.820088][ T8411] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 50.832828][ T8411] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.839851][ T8411] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.847150][ T8411] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.854231][ T8411] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.873635][ T8411] 8021q: adding VLAN 0 to HW filter on device bond0 [ 50.882881][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 50.890493][ T35] bridge0: port 1(bridge_slave_0) entered disabled state [ 50.898419][ T35] bridge0: port 2(bridge_slave_1) entered disabled state [ 50.906108][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 50.915307][ T8411] 8021q: adding VLAN 0 to HW filter on device team0 [ 50.932359][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 50.940552][ T35] bridge0: port 1(bridge_slave_0) entered blocking state [ 50.947601][ T35] bridge0: port 1(bridge_slave_0) entered forwarding state [ 50.955514][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 50.963717][ T35] bridge0: port 2(bridge_slave_1) entered blocking state [ 50.970744][ T35] bridge0: port 2(bridge_slave_1) entered forwarding state [ 50.978608][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 50.986951][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 50.995139][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 51.003095][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 51.011360][ T8411] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 51.018780][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 51.030001][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 51.037377][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 51.047055][ T8411] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 51.062564][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 51.071115][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 51.079818][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 51.088032][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 51.097113][ T8411] device veth0_vlan entered promiscuous mode [ 51.105292][ T8411] device veth1_vlan entered promiscuous mode [ 51.117085][ T3629] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 51.125116][ T3629] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 51.133118][ T3629] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 51.142342][ T8411] device veth0_macvtap entered promiscuous mode [ 51.149886][ T8411] device veth1_macvtap entered promiscuous mode [ 51.160372][ T8411] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 51.167855][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 51.176487][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 51.186162][ T8411] batman_adv: batadv0: Interface activated: batadv_slave_1 executing program [ 51.193533][ T8617] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 51.202865][ T8411] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.211536][ T8411] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.220645][ T8411] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.229430][ T8411] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 51.250196][ T8619] IPv6: ADDRCONF(NETDEV_CHANGE): vlan2: link becomes ready [ 57.293046][ T8411] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881139afdc0 (size 64): comm "syz-executor521", pid 8619, jiffies 4294942396 (age 8.180s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 08 00 00 00 01 02 00 00 ................ backtrace: [<00000000b1cea9fc>] garp_request_join+0x138/0x220 [<000000001af147d4>] vlan_gvrp_request_join+0x96/0xa0 [<0000000016ea4c68>] vlan_dev_open+0x1f9/0x330 [<00000000699cc56d>] __dev_open+0x175/0x260 [<000000005af37c45>] __dev_change_flags+0x2fd/0x390 [<0000000087c3abe4>] rtnl_configure_link+0x64/0x130 [<0000000054bf03f5>] __rtnl_newlink+0xa84/0xd80 [<00000000fe51a0f2>] rtnl_newlink+0x49/0x70 [<000000003fad114c>] rtnetlink_rcv_msg+0x1fc/0x520 [<000000008925d5ed>] netlink_rcv_skb+0x87/0x1d0 [<00000000e2a2dc24>] netlink_unicast+0x392/0x4c0 [<00000000bab100b1>] netlink_sendmsg+0x368/0x6a0 [<00000000cc5e8c83>] sock_sendmsg+0x56/0x80 [<000000004888f7f6>] ____sys_sendmsg+0x36c/0x390 [<00000000886ce742>] ___sys_sendmsg+0x8b/0xd0 [<0000000005611c3d>] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff8881139afd80 (size 64): comm "syz-executor521", pid 8619, jiffies 4294942396 (age 8.180s) hex dump (first 32 bytes): 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 01 00 00 00 01 02 00 00 ................ backtrace: [<000000006f878575>] mrp_request_join+0x153/0x260 [<00000000763a8565>] vlan_mvrp_request_join+0x96/0xa0 [<00000000e0304a69>] vlan_dev_open+0x1e7/0x330 [<00000000699cc56d>] __dev_open+0x175/0x260 [<000000005af37c45>] __dev_change_flags+0x2fd/0x390 [<0000000087c3abe4>] rtnl_configure_link+0x64/0x130 [<0000000054bf03f5>] __rtnl_newlink+0xa84/0xd80 [<00000000fe51a0f2>] rtnl_newlink+0x49/0x70 [<000000003fad114c>] rtnetlink_rcv_msg+0x1fc/0x520 [<000000008925d5ed>] netlink_rcv_skb+0x87/0x1d0 [<00000000e2a2dc24>] netlink_unicast+0x392/0x4c0 [<00000000bab100b1>] netlink_sendmsg+0x368/0x6a0 [<00000000cc5e8c83>] sock_sendmsg+0x56/0x80 [<000000004888f7f6>] ____sys_sendmsg+0x36c/0x390 [<00000000886ce742>] ___sys_sendmsg+0x8b/0xd0 [<0000000005611c3d>] __sys_sendmsg+0x88/0x100