[ 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 '10.128.10.1' (ECDSA) to the list of known hosts. syzkaller login: [ 44.952600][ T8437] IPVS: ftp: loaded support on port[0] = 21 [ 44.981326][ T8437] chnl_net:caif_netlink_parms(): no params data found [ 44.999712][ T8437] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.006757][ T8437] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.014227][ T8437] device bridge_slave_0 entered promiscuous mode [ 45.021261][ T8437] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.028585][ T8437] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.035819][ T8437] device bridge_slave_1 entered promiscuous mode [ 45.046220][ T8437] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 45.056099][ T8437] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 45.068889][ T8437] team0: Port device team_slave_0 added [ 45.074972][ T8437] team0: Port device team_slave_1 added [ 45.084875][ T8437] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 45.091877][ 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. [ 45.117987][ T8437] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 45.129047][ T8437] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 45.135978][ 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. [ 45.161876][ T8437] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 45.177184][ T8437] device hsr_slave_0 entered promiscuous mode [ 45.183464][ T8437] device hsr_slave_1 entered promiscuous mode [ 45.213258][ T8437] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 45.220753][ T8437] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 45.228528][ T8437] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 45.235847][ T8437] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 45.247634][ T8437] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.254748][ T8437] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.261975][ T8437] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.269015][ T8437] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.288195][ T8437] 8021q: adding VLAN 0 to HW filter on device bond0 [ 45.297036][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 45.305570][ T19] bridge0: port 1(bridge_slave_0) entered disabled state [ 45.313088][ T19] bridge0: port 2(bridge_slave_1) entered disabled state [ 45.320656][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 45.329568][ T8437] 8021q: adding VLAN 0 to HW filter on device team0 [ 45.337981][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 45.346056][ T5] bridge0: port 1(bridge_slave_0) entered blocking state [ 45.353090][ T5] bridge0: port 1(bridge_slave_0) entered forwarding state [ 45.367992][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 45.376134][ T5] bridge0: port 2(bridge_slave_1) entered blocking state [ 45.383181][ T5] bridge0: port 2(bridge_slave_1) entered forwarding state [ 45.390879][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 45.399280][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 45.407319][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 45.415498][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 45.425046][ T8437] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 45.435936][ T8437] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 45.443818][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 45.455313][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 45.463065][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 45.472797][ T8437] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 45.484422][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 45.497517][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 45.505629][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 45.513853][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 45.522207][ T8437] device veth0_vlan entered promiscuous mode [ 45.530501][ T8437] device veth1_vlan entered promiscuous mode [ 45.542463][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 45.550271][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 45.558225][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 45.567291][ T8437] device veth0_macvtap entered promiscuous mode [ 45.575092][ T8437] device veth1_macvtap entered promiscuous mode [ 45.585440][ T8437] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 45.593175][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 45.601818][ T5] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 45.610860][ T8437] batman_adv: batadv0: Interface activated: batadv_slave_1 executing program [ 45.618338][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 45.627754][ T8437] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.636423][ T8437] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.645365][ T8437] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.654131][ T8437] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 45.675526][ T8647] netlink: 'syz-executor901': attribute type 4 has an invalid length. [ 51.653682][ T8437] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888113203360 (size 32): comm "syz-executor901", pid 8647, jiffies 4294941839 (age 8.100s) 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 00 00 ................ backtrace: [<00000000aeb09d7e>] ip_mc_add_src+0x348/0x450 [<000000009fc19f87>] ip_mc_source+0x3d4/0x610 [<000000006766fe45>] ip_setsockopt+0x15d8/0x1f70 [<000000005a84fac5>] tcp_setsockopt+0x70/0x13f0 [<0000000037b5503d>] __sys_setsockopt+0x1b0/0x360 [<00000000a6fff8be>] __x64_sys_setsockopt+0x22/0x30 [<00000000cc813d2f>] do_syscall_64+0x2d/0x70 [<00000000d2ef710b>] entry_SYSCALL_64_after_hwframe+0x44/0xa9