[ 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 '10.128.1.49' (ECDSA) to the list of known hosts. syzkaller login: [ 192.652158][ T8473] IPVS: ftp: loaded support on port[0] = 21 [ 192.677030][ T8473] chnl_net:caif_netlink_parms(): no params data found [ 192.694843][ T8473] bridge0: port 1(bridge_slave_0) entered blocking state [ 192.701922][ T8473] bridge0: port 1(bridge_slave_0) entered disabled state [ 192.709180][ T8473] device bridge_slave_0 entered promiscuous mode [ 192.716337][ T8473] bridge0: port 2(bridge_slave_1) entered blocking state [ 192.723710][ T8473] bridge0: port 2(bridge_slave_1) entered disabled state [ 192.731136][ T8473] device bridge_slave_1 entered promiscuous mode [ 192.741352][ T8473] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 192.751118][ T8473] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 192.763897][ T8473] team0: Port device team_slave_0 added [ 192.769931][ T8473] team0: Port device team_slave_1 added [ 192.779845][ T8473] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 192.786988][ T8473] 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. [ 192.812975][ T8473] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 192.824198][ T8473] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 192.831180][ T8473] 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. [ 192.858831][ T8473] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 192.874076][ T8473] device hsr_slave_0 entered promiscuous mode [ 192.880533][ T8473] device hsr_slave_1 entered promiscuous mode [ 192.910084][ T8473] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 192.917658][ T8473] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 192.925281][ T8473] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 192.932853][ T8473] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 192.944743][ T8473] bridge0: port 2(bridge_slave_1) entered blocking state [ 192.951774][ T8473] bridge0: port 2(bridge_slave_1) entered forwarding state [ 192.959016][ T8473] bridge0: port 1(bridge_slave_0) entered blocking state [ 192.966104][ T8473] bridge0: port 1(bridge_slave_0) entered forwarding state [ 192.984508][ T8473] 8021q: adding VLAN 0 to HW filter on device bond0 [ 192.993219][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 193.001376][ T8221] bridge0: port 1(bridge_slave_0) entered disabled state [ 193.008556][ T8221] bridge0: port 2(bridge_slave_1) entered disabled state [ 193.016242][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 193.025166][ T8473] 8021q: adding VLAN 0 to HW filter on device team0 [ 193.040807][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 193.048905][ T8221] bridge0: port 1(bridge_slave_0) entered blocking state [ 193.055948][ T8221] bridge0: port 1(bridge_slave_0) entered forwarding state [ 193.063721][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 193.071899][ T8221] bridge0: port 2(bridge_slave_1) entered blocking state [ 193.078917][ T8221] bridge0: port 2(bridge_slave_1) entered forwarding state [ 193.086562][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 193.094713][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 193.102824][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 193.110732][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 193.118788][ T8221] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 193.126978][ T8473] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 193.137501][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 193.145017][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 193.154444][ T8473] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 193.169632][ T8473] device veth0_vlan entered promiscuous mode [ 193.176280][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 193.184751][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 193.193123][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 193.200710][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 193.210022][ T8473] device veth1_vlan entered promiscuous mode [ 193.221791][ T8473] device veth0_macvtap entered promiscuous mode [ 193.229103][ T8473] device veth1_macvtap entered promiscuous mode [ 193.236314][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 193.244142][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 193.252242][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 193.260410][ T17] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 193.271727][ T8473] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 193.280132][ T8473] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 193.287452][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 193.296050][ T3241] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 193.305365][ T8473] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 193.314084][ T8473] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 193.323102][ T8473] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 193.331957][ T8473] 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 [ 254.076629][ T8729] device bridge_slave_1 left promiscuous mode [ 254.082776][ T8729] bridge0: port 2(bridge_slave_1) entered disabled state [ 254.089983][ T8729] device bridge_slave_0 left promiscuous mode [ 254.096575][ T8729] bridge0: port 1(bridge_slave_0) entered disabled state [ 255.131335][ T8473] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 260.086780][ T8473] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888110e54dc0 (size 64): comm "syz-executor842", pid 8722, jiffies 4294962069 (age 14.230s) 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 04 ................ backtrace: [<00000000f268f8f6>] mrp_request_join+0x153/0x260 [<000000000b41a1d9>] vlan_mvrp_request_join+0x96/0xa0 [<000000007086dc43>] vlan_dev_open+0x1e7/0x330 [<00000000becd9dcf>] __dev_open+0x175/0x260 [<0000000097e516c7>] __dev_change_flags+0x2fd/0x390 [<000000002c9c7545>] rtnl_configure_link+0x64/0x130 [<00000000070d9b74>] __rtnl_newlink+0xa7e/0xdb0 [<0000000062170341>] rtnl_newlink+0x49/0x70 [<000000000ca99cde>] rtnetlink_rcv_msg+0x1f5/0x510 [<0000000051c8906b>] netlink_rcv_skb+0x87/0x1d0 [<00000000ed1a99cd>] netlink_unicast+0x392/0x4c0 [<000000005fcc02a1>] netlink_sendmsg+0x368/0x6a0 [<00000000d008f9ae>] sock_sendmsg+0x56/0x80 [<000000000a2c2ce6>] ____sys_sendmsg+0x36c/0x390 [<00000000b152d271>] ___sys_sendmsg+0x8b/0xd0 [<0000000061e7ebb9>] __sys_sendmsg+0x88/0x100 BUG: memory leak unreferenced object 0xffff8881103fc380 (size 64): comm "syz-executor842", pid 8729, jiffies 4294962679 (age 8.130s) 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 04 ................ backtrace: [<00000000f268f8f6>] mrp_request_join+0x153/0x260 [<000000000b41a1d9>] vlan_mvrp_request_join+0x96/0xa0 [<000000007086dc43>] vlan_dev_open+0x1e7/0x330 [<00000000becd9dcf>] __dev_open+0x175/0x260 [<0000000097e516c7>] __dev_change_flags+0x2fd/0x390 [<000000002c9c7545>] rtnl_configure_link+0x64/0x130 [<00000000070d9b74>] __rtnl_newlink+0xa7e/0xdb0 [<0000000062170341>] rtnl_newlink+0x49/0x70 [<000000000ca99cde>] rtnetlink_rcv_msg+0x1f5/0x510 [<0000000051c8906b>] netlink_rcv_skb+0x87/0x1d0 [<00000000ed1a99cd>] netlink_unicast+0x392/0x4c0 [<000000005fcc02a1>] netlink_sendmsg+0x368/0x6a0 [<00000000d008f9ae>] sock_sendmsg+0x56/0x80 [<000000000a2c2ce6>] ____sys_sendmsg+0x36c/0x390 [<00000000b152d271>] ___sys_sendmsg+0x8b/0xd0 [<0000000061e7ebb9>] __sys_sendmsg+0x88/0x100