[ 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 '10.128.0.7' (ECDSA) to the list of known hosts. syzkaller login: [ 108.504383][ T8491] IPVS: ftp: loaded support on port[0] = 21 [ 108.528381][ T8491] chnl_net:caif_netlink_parms(): no params data found [ 108.545187][ T8491] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.552348][ T8491] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.559552][ T8491] device bridge_slave_0 entered promiscuous mode [ 108.566815][ T8491] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.573856][ T8491] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.581296][ T8491] device bridge_slave_1 entered promiscuous mode [ 108.591151][ T8491] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 108.600841][ T8491] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 108.613338][ T8491] team0: Port device team_slave_0 added [ 108.619305][ T8491] team0: Port device team_slave_1 added [ 108.628020][ T8491] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 108.635012][ T8491] 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. [ 108.660887][ T8491] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 108.672440][ T8491] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 108.679358][ T8491] 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. [ 108.705247][ T8491] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 108.720220][ T8491] device hsr_slave_0 entered promiscuous mode [ 108.726677][ T8491] device hsr_slave_1 entered promiscuous mode [ 108.754209][ T8491] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 108.761741][ T8491] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 108.769317][ T8491] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 108.776974][ T8491] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 108.788305][ T8491] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.795343][ T8491] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.802569][ T8491] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.809577][ T8491] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.828878][ T8491] 8021q: adding VLAN 0 to HW filter on device bond0 [ 108.837429][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 108.845706][ T3639] bridge0: port 1(bridge_slave_0) entered disabled state [ 108.853296][ T3639] bridge0: port 2(bridge_slave_1) entered disabled state [ 108.860631][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 108.869627][ T8491] 8021q: adding VLAN 0 to HW filter on device team0 [ 108.877840][ T3883] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 108.886166][ T3883] bridge0: port 1(bridge_slave_0) entered blocking state [ 108.893187][ T3883] bridge0: port 1(bridge_slave_0) entered forwarding state [ 108.901569][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 108.910033][ T3639] bridge0: port 2(bridge_slave_1) entered blocking state [ 108.917081][ T3639] bridge0: port 2(bridge_slave_1) entered forwarding state [ 108.931054][ T8491] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 108.941496][ T8491] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 108.952774][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 108.960866][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 108.968976][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 108.976942][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 108.985260][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 108.992545][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 109.004707][ T8491] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 109.011945][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 109.019246][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 109.034717][ T8491] device veth0_vlan entered promiscuous mode [ 109.041956][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 109.050268][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 109.058248][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 109.065735][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 109.074067][ T8491] device veth1_vlan entered promiscuous mode [ 109.084858][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 109.092815][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 109.100434][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 109.109715][ T8491] device veth0_macvtap entered promiscuous mode [ 109.117128][ T8491] device veth1_macvtap entered promiscuous mode [ 109.126967][ T8491] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 109.134445][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 109.143030][ T3639] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready executing program [ 109.152010][ T8491] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 109.159261][ T3883] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 109.168526][ T8491] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.177399][ T8491] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.186161][ T8491] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 109.194862][ T8491] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program executing program executing program [ 125.101636][ T8736] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 125.113543][ T8736] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 125.125332][ T8736] bond0 (unregistering): Released all slaves executing program [ 131.653453][ T8491] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881137694c0 (size 64): comm "syz-executor785", pid 8736, jiffies 4294949772 (age 12.820s) 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: [<000000006e93b8fb>] mrp_request_join+0x153/0x260 [<000000006d6a2326>] vlan_mvrp_request_join+0x96/0xa0 [<000000001a7ee63a>] vlan_dev_open+0x1e7/0x330 [<0000000073599d9c>] __dev_open+0x175/0x260 [<0000000094b1df40>] __dev_change_flags+0x2fd/0x390 [<00000000fa1ffd08>] rtnl_configure_link+0x64/0x130 [<0000000010608aeb>] __rtnl_newlink+0xa7e/0xdb0 [<0000000066a4b50b>] rtnl_newlink+0x49/0x70 [<0000000072513c1e>] rtnetlink_rcv_msg+0x1f5/0x510 [<00000000aad87948>] netlink_rcv_skb+0x87/0x1d0 [<00000000e8632faa>] netlink_unicast+0x392/0x4c0 [<0000000079b1e1b7>] netlink_sendmsg+0x368/0x6a0 [<000000006bfca6f6>] sock_sendmsg+0x56/0x80 [<000000005d700b97>] ____sys_sendmsg+0x36c/0x390 [<00000000898460c7>] ___sys_sendmsg+0x8b/0xd0 [<0000000019148980>] __sys_sendmsg+0x88/0x100