[ 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 '10.128.1.51' (ECDSA) to the list of known hosts. syzkaller login: [ 75.401711][ T8404] IPVS: ftp: loaded support on port[0] = 21 [ 75.428750][ T8404] chnl_net:caif_netlink_parms(): no params data found [ 75.447375][ T8404] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.454410][ T8404] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.462027][ T8404] device bridge_slave_0 entered promiscuous mode [ 75.469169][ T8404] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.476552][ T8404] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.483816][ T8404] device bridge_slave_1 entered promiscuous mode [ 75.493977][ T8404] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 75.503747][ T8404] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 75.516316][ T8404] team0: Port device team_slave_0 added [ 75.522331][ T8404] team0: Port device team_slave_1 added [ 75.531163][ T8404] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 75.538108][ T8404] 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. [ 75.563995][ T8404] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 75.575054][ T8404] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 75.582012][ T8404] 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. [ 75.607881][ T8404] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 75.622943][ T8404] device hsr_slave_0 entered promiscuous mode [ 75.629219][ T8404] device hsr_slave_1 entered promiscuous mode [ 75.658987][ T8404] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 75.666818][ T8404] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 75.674188][ T8404] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 75.681768][ T8404] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 75.692782][ T8404] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.699945][ T8404] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.707175][ T8404] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.714175][ T8404] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.733727][ T8404] 8021q: adding VLAN 0 to HW filter on device bond0 [ 75.742474][ T4576] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 75.750483][ T4576] bridge0: port 1(bridge_slave_0) entered disabled state [ 75.758156][ T4576] bridge0: port 2(bridge_slave_1) entered disabled state [ 75.765498][ T4576] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 75.774300][ T8404] 8021q: adding VLAN 0 to HW filter on device team0 [ 75.782620][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 75.790990][ T3256] bridge0: port 1(bridge_slave_0) entered blocking state [ 75.798017][ T3256] bridge0: port 1(bridge_slave_0) entered forwarding state [ 75.813915][ T8404] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 75.824304][ T8404] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 75.835734][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 75.843987][ T3256] bridge0: port 2(bridge_slave_1) entered blocking state [ 75.851009][ T3256] bridge0: port 2(bridge_slave_1) entered forwarding state [ 75.858913][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 75.867396][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 75.875410][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 75.883406][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 75.891409][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 75.898723][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 75.911377][ T8404] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 75.918371][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 75.925658][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 75.941813][ T8404] device veth0_vlan entered promiscuous mode [ 75.948310][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 75.957101][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 75.964964][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 75.972685][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 75.982108][ T8404] device veth1_vlan entered promiscuous mode [ 75.993478][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 76.001325][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 76.009347][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 76.018624][ T8404] device veth0_macvtap entered promiscuous mode [ 76.026264][ T8404] device veth1_macvtap entered promiscuous mode [ 76.036648][ T8404] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 76.043851][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 76.052796][ T3256] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready executing program [ 76.061786][ T8404] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 76.069228][ T3115] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 76.078344][ T8404] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.087202][ T8404] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.095896][ T8404] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 76.104624][ T8404] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 82.341266][ T8404] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881140bd7c0 (size 64): comm "syz-executor194", pid 8612, jiffies 4294944885 (age 12.350s) 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: [<0000000003dbb3fe>] garp_request_join+0x138/0x220 [<00000000c599c616>] vlan_gvrp_request_join+0x96/0xa0 [<000000006c052f6e>] vlan_dev_open+0x1f9/0x330 [<00000000a6d59645>] __dev_open+0x175/0x260 [<0000000079522f52>] __dev_change_flags+0x2fd/0x390 [<000000000f8e9be9>] rtnl_configure_link+0x64/0x130 [<00000000128f9e68>] __rtnl_newlink+0xa84/0xd80 [<000000009464f72a>] rtnl_newlink+0x49/0x70 [<0000000090bf63f4>] rtnetlink_rcv_msg+0x1fc/0x520 [<000000007c7dd7b1>] netlink_rcv_skb+0x87/0x1d0 [<000000007ac46484>] netlink_unicast+0x392/0x4c0 [<00000000b99b76f7>] netlink_sendmsg+0x368/0x6a0 [<00000000225960c7>] sock_sendmsg+0x56/0x80 [<00000000899eadc0>] ____sys_sendmsg+0x36c/0x390 [<00000000efbfaf52>] ___sys_sendmsg+0x8b/0xd0 [<000000001f98748c>] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff8881140bd780 (size 64): comm "syz-executor194", pid 8612, jiffies 4294944885 (age 12.350s) 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: [<000000003739d236>] mrp_request_join+0x153/0x260 [<00000000c817b18b>] vlan_mvrp_request_join+0x96/0xa0 [<00000000d0d88242>] vlan_dev_open+0x1e7/0x330 [<00000000a6d59645>] __dev_open+0x175/0x260 [<0000000079522f52>] __dev_change_flags+0x2fd/0x390 [<000000000f8e9be9>] rtnl_configure_link+0x64/0x130 [<00000000128f9e68>] __rtnl_newlink+0xa84/0xd80 [<000000009464f72a>] rtnl_newlink+0x49/0x70 [<0000000090bf63f4>] rtnetlink_rcv_msg+0x1fc/0x520 [<000000007c7dd7b1>] netlink_rcv_skb+0x87/0x1d0 [<000000007ac46484>] netlink_unicast+0x392/0x4c0 [<00000000b99b76f7>] netlink_sendmsg+0x368/0x6a0 [<00000000225960c7>] sock_sendmsg+0x56/0x80 [<00000000899eadc0>] ____sys_sendmsg+0x36c/0x390 [<00000000efbfaf52>] ___sys_sendmsg+0x8b/0xd0 [<000000001f98748c>] __sys_sendmsg+0x88/0x100