[ 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 '10.128.0.166' (ECDSA) to the list of known hosts. syzkaller login: [ 177.142657][ T8495] IPVS: ftp: loaded support on port[0] = 21 [ 177.170142][ T8495] chnl_net:caif_netlink_parms(): no params data found [ 177.189657][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.196708][ T8495] bridge0: port 1(bridge_slave_0) entered disabled state [ 177.204476][ T8495] device bridge_slave_0 entered promiscuous mode [ 177.211523][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.219084][ T8495] bridge0: port 2(bridge_slave_1) entered disabled state [ 177.226359][ T8495] device bridge_slave_1 entered promiscuous mode [ 177.236846][ T8495] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 177.246680][ T8495] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 177.259442][ T8495] team0: Port device team_slave_0 added [ 177.265528][ T8495] team0: Port device team_slave_1 added [ 177.274790][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 177.281764][ T8495] 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. [ 177.307659][ T8495] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 177.318754][ T8495] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 177.325674][ T8495] 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. [ 177.351525][ T8495] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 177.366934][ T8495] device hsr_slave_0 entered promiscuous mode [ 177.373208][ T8495] device hsr_slave_1 entered promiscuous mode [ 177.402676][ T8495] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 177.410080][ T8495] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 177.417379][ T8495] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 177.425039][ T8495] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 177.436658][ T8495] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.443692][ T8495] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.450949][ T8495] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.457957][ T8495] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.477192][ T8495] 8021q: adding VLAN 0 to HW filter on device bond0 [ 177.486174][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 177.494539][ T3848] bridge0: port 1(bridge_slave_0) entered disabled state [ 177.502050][ T3848] bridge0: port 2(bridge_slave_1) entered disabled state [ 177.509607][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 177.518626][ T8495] 8021q: adding VLAN 0 to HW filter on device team0 [ 177.526658][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 177.535105][ T7] bridge0: port 1(bridge_slave_0) entered blocking state [ 177.542132][ T7] bridge0: port 1(bridge_slave_0) entered forwarding state [ 177.550785][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 177.558986][ T54] bridge0: port 2(bridge_slave_1) entered blocking state [ 177.566005][ T54] bridge0: port 2(bridge_slave_1) entered forwarding state [ 177.579045][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 177.587274][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 177.595726][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 177.604695][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 177.613848][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 177.622918][ T8495] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 177.635433][ T8495] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 177.642975][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 177.650651][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 177.662449][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 177.674377][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 177.682446][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 177.690043][ T3848] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 177.698741][ T8495] device veth0_vlan entered promiscuous mode [ 177.706789][ T8495] device veth1_vlan entered promiscuous mode [ 177.718636][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 177.726273][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 177.734527][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 177.743669][ T8495] device veth0_macvtap entered promiscuous mode [ 177.751174][ T8495] device veth1_macvtap entered promiscuous mode [ 177.761719][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 177.768996][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 177.777439][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 177.787004][ T8495] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 177.794415][ T54] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready executing program [ 177.803760][ T8495] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 177.812469][ T8495] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 177.821304][ T8495] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 177.830156][ T8495] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 238.221487][ T8750] device bridge_slave_1 left promiscuous mode [ 238.227595][ T8750] bridge0: port 2(bridge_slave_1) entered disabled state [ 238.235418][ T8750] device bridge_slave_0 left promiscuous mode [ 238.241710][ T8750] bridge0: port 1(bridge_slave_0) entered disabled state [ 244.236967][ T8495] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811385bdc0 (size 64): comm "syz-executor827", pid 8743, jiffies 4294960468 (age 14.160s) 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: [<0000000012346683>] mrp_request_join+0x153/0x260 [<000000003257702c>] vlan_mvrp_request_join+0x96/0xa0 [<000000003ff78a1b>] vlan_dev_open+0x1e7/0x330 [<0000000035f0f869>] __dev_open+0x175/0x260 [<00000000b4341f1e>] __dev_change_flags+0x2fd/0x390 [<000000002f493318>] rtnl_configure_link+0x64/0x130 [<00000000b0a76ced>] __rtnl_newlink+0xa7e/0xdb0 [<00000000c0a6cddd>] rtnl_newlink+0x49/0x70 [<000000009563bd93>] rtnetlink_rcv_msg+0x1f5/0x510 [<00000000975a5a7c>] netlink_rcv_skb+0x87/0x1d0 [<000000009050d024>] netlink_unicast+0x392/0x4c0 [<000000001a443fa2>] netlink_sendmsg+0x368/0x6a0 [<000000006fe7180c>] sock_sendmsg+0x56/0x80 [<0000000003f2e3f9>] ____sys_sendmsg+0x36c/0x390 [<00000000334a4e7e>] ___sys_sendmsg+0x8b/0xd0 [<0000000084393da8>] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff8881138fa340 (size 64): comm "syz-executor827", pid 8750, jiffies 4294961074 (age 8.100s) 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: [<0000000012346683>] mrp_request_join+0x153/0x260 [<000000003257702c>] vlan_mvrp_request_join+0x96/0xa0 [<000000003ff78a1b>] vlan_dev_open+0x1e7/0x330 [<0000000035f0f869>] __dev_open+0x175/0x260 [<00000000b4341f1e>] __dev_change_flags+0x2fd/0x390 [<000000002f493318>] rtnl_configure_link+0x64/0x130 [<00000000b0a76ced>] __rtnl_newlink+0xa7e/0xdb0 [<00000000c0a6cddd>] rtnl_newlink+0x49/0x70 [<000000009563bd93>] rtnetlink_rcv_msg+0x1f5/0x510 [<00000000975a5a7c>] netlink_rcv_skb+0x87/0x1d0 [<000000009050d024>] netlink_unicast+0x392/0x4c0 [<000000001a443fa2>] netlink_sendmsg+0x368/0x6a0 [<000000006fe7180c>] sock_sendmsg+0x56/0x80 [<0000000003f2e3f9>] ____sys_sendmsg+0x36c/0x390 [<00000000334a4e7e>] ___sys_sendmsg+0x8b/0xd0 [<0000000084393da8>] __sys_sendmsg+0x88/0x100