[ 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 '10.128.0.40' (ECDSA) to the list of known hosts. syzkaller login: [ 48.820591][ T8437] IPVS: ftp: loaded support on port[0] = 21 [ 48.850246][ T8437] chnl_net:caif_netlink_parms(): no params data found [ 48.869586][ T8437] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.876811][ T8437] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.884114][ T8437] device bridge_slave_0 entered promiscuous mode [ 48.891608][ T8437] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.898809][ T8437] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.906160][ T8437] device bridge_slave_1 entered promiscuous mode [ 48.916708][ T8437] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 48.926506][ T8437] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 48.939499][ T8437] team0: Port device team_slave_0 added [ 48.945816][ T8437] team0: Port device team_slave_1 added [ 48.955548][ T8437] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 48.962656][ T8437] 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. [ 48.988637][ T8437] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 48.999935][ T8437] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 49.007019][ T8437] 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. [ 49.032999][ T8437] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 49.048843][ T8437] device hsr_slave_0 entered promiscuous mode [ 49.055108][ T8437] device hsr_slave_1 entered promiscuous mode [ 49.084981][ T8437] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 49.092752][ T8437] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 49.100581][ T8437] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 49.108177][ T8437] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 49.120398][ T8437] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.127435][ T8437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.134746][ T8437] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.141811][ T8437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.161784][ T8437] 8021q: adding VLAN 0 to HW filter on device bond0 [ 49.170675][ T3277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 49.178808][ T3277] bridge0: port 1(bridge_slave_0) entered disabled state [ 49.186028][ T3277] bridge0: port 2(bridge_slave_1) entered disabled state [ 49.193441][ T3277] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 49.202675][ T8437] 8021q: adding VLAN 0 to HW filter on device team0 [ 49.211062][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 49.219544][ T3709] bridge0: port 1(bridge_slave_0) entered blocking state [ 49.226589][ T3709] bridge0: port 1(bridge_slave_0) entered forwarding state [ 49.235369][ T3277] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 49.243941][ T3277] bridge0: port 2(bridge_slave_1) entered blocking state [ 49.250995][ T3277] bridge0: port 2(bridge_slave_1) entered forwarding state [ 49.262492][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 49.271174][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 49.283179][ T8437] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 49.294166][ T8437] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 49.305655][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 49.314408][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 49.322925][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 49.331239][ T3709] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 49.343977][ T8437] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 49.351603][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 49.359528][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 49.371345][ T3277] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 49.383865][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 49.392389][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 49.400210][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 49.408935][ T8437] device veth0_vlan entered promiscuous mode [ 49.417613][ T8437] device veth1_vlan entered promiscuous mode [ 49.429586][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 49.437484][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 49.445309][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 49.454853][ T8437] device veth0_macvtap entered promiscuous mode [ 49.462730][ T8437] device veth1_macvtap entered promiscuous mode [ 49.473411][ T8437] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 49.481341][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 49.490488][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 49.499874][ T8437] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 49.507249][ T3277] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 49.516902][ T8437] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.525584][ T8437] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 49.534547][ T8437] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 49.543998][ T8437] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 55.975898][ T8437] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888114085a80 (size 64): comm "syz-executor211", pid 8645, jiffies 4294942223 (age 12.670s) 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: [<00000000bed49d66>] garp_request_join+0x138/0x220 [<000000000622df6b>] vlan_gvrp_request_join+0x96/0xa0 [<00000000bc65202c>] vlan_dev_open+0x1f9/0x330 [<0000000016a09ddd>] __dev_open+0x175/0x260 [<00000000ab4443e5>] __dev_change_flags+0x2fd/0x390 [<000000003803a2c8>] rtnl_configure_link+0x64/0x130 [<000000004c5c883e>] __rtnl_newlink+0xa84/0xd80 [<000000009f74ad3b>] rtnl_newlink+0x49/0x70 [<0000000062ad11fb>] rtnetlink_rcv_msg+0x1fc/0x520 [<000000008f2a71b9>] netlink_rcv_skb+0x87/0x1d0 [<00000000e2b59056>] netlink_unicast+0x392/0x4c0 [<000000000140b635>] netlink_sendmsg+0x368/0x6a0 [<000000009cd589f1>] sock_sendmsg+0x56/0x80 [<00000000c5ef47a7>] ____sys_sendmsg+0x36c/0x390 [<0000000080573be2>] ___sys_sendmsg+0x8b/0xd0 [<000000006baf833b>] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff888114085a40 (size 64): comm "syz-executor211", pid 8645, jiffies 4294942223 (age 12.670s) 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: [<000000007f59821b>] mrp_request_join+0x153/0x260 [<00000000bcf31f0b>] vlan_mvrp_request_join+0x96/0xa0 [<000000001e209c94>] vlan_dev_open+0x1e7/0x330 [<0000000016a09ddd>] __dev_open+0x175/0x260 [<00000000ab4443e5>] __dev_change_flags+0x2fd/0x390 [<000000003803a2c8>] rtnl_configure_link+0x64/0x130 [<000000004c5c883e>] __rtnl_newlink+0xa84/0xd80 [<000000009f74ad3b>] rtnl_newlink+0x49/0x70 [<0000000062ad11fb>] rtnetlink_rcv_msg+0x1fc/0x520 [<000000008f2a71b9>] netlink_rcv_skb+0x87/0x1d0 [<00000000e2b59056>] netlink_unicast+0x392/0x4c0 [<000000000140b635>] netlink_sendmsg+0x368/0x6a0 [<000000009cd589f1>] sock_sendmsg+0x56/0x80 [<00000000c5ef47a7>] ____sys_sendmsg+0x36c/0x390 [<0000000080573be2>] ___sys_sendmsg+0x8b/0xd0 [<000000006baf833b>] __sys_sendmsg+0x88/0x100