[ 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 '10.128.1.2' (ECDSA) to the list of known hosts. syzkaller login: [ 178.407520][ T8439] IPVS: ftp: loaded support on port[0] = 21 [ 178.435445][ T8439] chnl_net:caif_netlink_parms(): no params data found [ 178.454194][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 178.461612][ T8439] bridge0: port 1(bridge_slave_0) entered disabled state [ 178.468809][ T8439] device bridge_slave_0 entered promiscuous mode [ 178.476334][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 178.483556][ T8439] bridge0: port 2(bridge_slave_1) entered disabled state [ 178.491055][ T8439] device bridge_slave_1 entered promiscuous mode [ 178.501386][ T8439] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 178.511308][ T8439] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 178.523858][ T8439] team0: Port device team_slave_0 added [ 178.529883][ T8439] team0: Port device team_slave_1 added [ 178.539048][ T8439] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 178.546240][ T8439] 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. [ 178.572322][ T8439] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 178.583416][ T8439] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 178.591549][ T8439] 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. [ 178.617579][ T8439] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 178.632934][ T8439] device hsr_slave_0 entered promiscuous mode [ 178.639129][ T8439] device hsr_slave_1 entered promiscuous mode [ 178.668804][ T8439] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 178.676167][ T8439] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 178.683762][ T8439] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 178.691513][ T8439] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 178.703007][ T8439] bridge0: port 2(bridge_slave_1) entered blocking state [ 178.710018][ T8439] bridge0: port 2(bridge_slave_1) entered forwarding state [ 178.717237][ T8439] bridge0: port 1(bridge_slave_0) entered blocking state [ 178.724268][ T8439] bridge0: port 1(bridge_slave_0) entered forwarding state [ 178.742526][ T8439] 8021q: adding VLAN 0 to HW filter on device bond0 [ 178.751703][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 178.759248][ T5] bridge0: port 1(bridge_slave_0) entered disabled state [ 178.767038][ T5] bridge0: port 2(bridge_slave_1) entered disabled state [ 178.774699][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 178.783611][ T8439] 8021q: adding VLAN 0 to HW filter on device team0 [ 178.791802][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 178.799940][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 178.806998][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 178.815696][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 178.824060][ T3800] bridge0: port 2(bridge_slave_1) entered blocking state [ 178.831086][ T3800] bridge0: port 2(bridge_slave_1) entered forwarding state [ 178.842356][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 178.850682][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 178.860866][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 178.868906][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 178.878711][ T8439] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 178.889410][ T8439] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 178.897333][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 178.908772][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 178.916410][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 178.925756][ T8439] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 178.936872][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 178.948723][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 178.956918][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 178.964469][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 178.972982][ T8439] device veth0_vlan entered promiscuous mode [ 178.981358][ T8439] device veth1_vlan entered promiscuous mode [ 178.992728][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 179.000371][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 179.008374][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 179.017428][ T8439] device veth0_macvtap entered promiscuous mode [ 179.024897][ T8439] device veth1_macvtap entered promiscuous mode [ 179.035094][ T8439] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 179.042496][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 179.050879][ T3800] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 179.059810][ T8439] batman_adv: batadv0: Interface activated: batadv_slave_1 executing program [ 179.067412][ T8130] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 179.076641][ T8439] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 179.085422][ T8439] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 179.094110][ T8439] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 179.102919][ T8439] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 179.121016][ T8649] netlink: 'syz-executor659': attribute type 4 has an invalid length. executing program [ 184.357834][ T8650] netlink: 'syz-executor659': attribute type 4 has an invalid length. [ 185.409105][ T8439] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888113a2ae00 (size 32): comm "syz-executor659", pid 8649, jiffies 4294955186 (age 12.520s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 01 00 00 00 00 00 00 00 00 00 00 00 00 00 02 00 ................ backtrace: [<00000000414d7fb1>] ip_mc_add_src+0x348/0x450 [<000000006a9e9172>] ip_mc_source+0x3d4/0x610 [<00000000c53cc886>] ip_setsockopt+0x15d8/0x1f70 [<00000000583565f1>] tcp_setsockopt+0x70/0x13f0 [<00000000192b656d>] __sys_setsockopt+0x1b0/0x360 [<00000000206365e6>] __x64_sys_setsockopt+0x22/0x30 [<00000000c5707075>] do_syscall_64+0x2d/0x70 [<000000006d1b82ad>] entry_SYSCALL_64_after_hwframe+0x44/0xa9