[ 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 '10.128.10.2' (ECDSA) to the list of known hosts. syzkaller login: [ 48.860130][ T8395] chnl_net:caif_netlink_parms(): no params data found [ 48.878463][ T8395] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.885535][ T8395] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.892945][ T8395] device bridge_slave_0 entered promiscuous mode [ 48.899792][ T8395] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.907136][ T8395] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.914673][ T8395] device bridge_slave_1 entered promiscuous mode [ 48.924666][ T8395] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.934381][ T8395] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.947503][ T8395] team0: Port device team_slave_0 added [ 48.953672][ T8395] team0: Port device team_slave_1 added [ 48.962388][ T8395] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.969303][ T8395] 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. [ 48.995210][ T8395] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 49.006134][ T8395] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.013115][ T8395] 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. [ 49.039071][ T8395] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.054124][ T8395] device hsr_slave_0 entered promiscuous mode [ 49.060306][ T8395] device hsr_slave_1 entered promiscuous mode [ 49.088466][ T8395] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.096050][ T8395] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.103745][ T8395] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.111199][ T8395] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.122443][ T8395] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.129451][ T8395] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.136672][ T8395] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.143745][ T8395] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.161977][ T8395] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.171215][ T4850] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.178785][ T4850] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.186382][ T4850] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.193982][ T4850] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.202624][ T8395] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.210970][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.219260][ T3191] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.226283][ T3191] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.238294][ T4850] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.246498][ T4850] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.253521][ T4850] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.261309][ T4850] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.272605][ T8395] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.283334][ T8395] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.294405][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.302226][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.310253][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.318436][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.330778][ T8395] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.340706][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.348006][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.355541][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.364417][ T3191] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.377061][ T8395] device veth0_vlan entered promiscuous mode [ 49.383265][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.391471][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.398911][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.408244][ T8395] device veth1_vlan entered promiscuous mode [ 49.415103][ T3783] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.428164][ T8395] device veth0_macvtap entered promiscuous mode [ 49.434774][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.442721][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.451111][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.460010][ T8395] device veth1_macvtap entered promiscuous mode [ 49.475279][ T8395] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.483496][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready executing program [ 49.493566][ T8395] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.501382][ T35] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.510209][ T8395] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.519011][ T8395] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.527940][ T8395] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.536829][ T8395] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 55.979801][ T8395] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888117664b40 (size 64): comm "syz-executor027", pid 8604, jiffies 4294942226 (age 12.730s) 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 02 ................ backtrace: [] garp_request_join+0x138/0x220 [] vlan_gvrp_request_join+0x96/0xa0 [] vlan_dev_open+0x1f9/0x330 [] __dev_open+0x175/0x260 [] __dev_change_flags+0x2fa/0x390 [] rtnl_configure_link+0x64/0x130 [] __rtnl_newlink+0xa74/0xdb0 [] rtnl_newlink+0x49/0x70 [] rtnetlink_rcv_msg+0x1fc/0x520 [] netlink_rcv_skb+0x87/0x1d0 [] netlink_unicast+0x392/0x4c0 [] netlink_sendmsg+0x368/0x6a0 [] sock_sendmsg+0x56/0x80 [] ____sys_sendmsg+0x36c/0x390 [] ___sys_sendmsg+0x8b/0xd0 [] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff888117664b00 (size 64): comm "syz-executor027", pid 8604, jiffies 4294942226 (age 12.730s) 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 02 ................ backtrace: [] mrp_request_join+0x153/0x260 [] vlan_mvrp_request_join+0x96/0xa0 [] vlan_dev_open+0x1e7/0x330 [] __dev_open+0x175/0x260 [] __dev_change_flags+0x2fa/0x390 [] rtnl_configure_link+0x64/0x130 [] __rtnl_newlink+0xa74/0xdb0 [] rtnl_newlink+0x49/0x70 [] rtnetlink_rcv_msg+0x1fc/0x520 [] netlink_rcv_skb+0x87/0x1d0 [] netlink_unicast+0x392/0x4c0 [] netlink_sendmsg+0x368/0x6a0 [] sock_sendmsg+0x56/0x80 [] ____sys_sendmsg+0x36c/0x390 [] ___sys_sendmsg+0x8b/0xd0 [] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff888117639180 (size 64): comm "syz-executor027", pid 8611, jiffies 4294942756 (age 7.430s) 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 02 ................ backtrace: [] garp_request_join+0x138/0x220 [] vlan_gvrp_request_join+0x96/0xa0 [] vlan_dev_open+0x1f9/0x330 [] __dev_open+0x175/0x260 [] __dev_change_flags+0x2fa/0x390 [] rtnl_configure_link+0x64/0x130 [] __rtnl_newlink+0xa74/0xdb0 [] rtnl_newlink+0x49/0x70 [] rtnetlink_rcv_msg+0x1fc/0x520 [] netlink_rcv_skb+0x87/0x1d0 [] netlink_unicast+0x392/0x4c0 [] netlink_sendmsg+0x368/0x6a0 [] sock_sendmsg+0x56/0x80 [] ____sys_sendmsg+0x36c/0x390 [] ___sys_sendmsg+0x8b/0xd0 [] __sys_sendmsg+0x88/0x100 [ 62.223818][ T8395] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak)