[ 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 '10.128.0.192' (ECDSA) to the list of known hosts. syzkaller login: [ 158.638732][ T8432] IPVS: ftp: loaded support on port[0] = 21 [ 158.667887][ T8432] chnl_net:caif_netlink_parms(): no params data found [ 158.687262][ T8432] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.694334][ T8432] bridge0: port 1(bridge_slave_0) entered disabled state [ 158.701893][ T8432] device bridge_slave_0 entered promiscuous mode [ 158.708930][ T8432] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.717037][ T8432] bridge0: port 2(bridge_slave_1) entered disabled state [ 158.724331][ T8432] device bridge_slave_1 entered promiscuous mode [ 158.734856][ T8432] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 158.744643][ T8432] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 158.748709][ T8432] team0: Port device team_slave_0 added [ 158.759812][ T8432] team0: Port device team_slave_1 added [ 158.768932][ T8432] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 158.775889][ T8432] 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. [ 158.801957][ T8432] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 158.813153][ T8432] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 158.820120][ T8432] 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. [ 158.846097][ T8432] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 158.862488][ T8432] device hsr_slave_0 entered promiscuous mode [ 158.868789][ T8432] device hsr_slave_1 entered promiscuous mode [ 158.897383][ T8432] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 158.906012][ T8432] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 158.913461][ T8432] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 158.921796][ T8432] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 158.934793][ T8432] bridge0: port 2(bridge_slave_1) entered blocking state [ 158.941834][ T8432] bridge0: port 2(bridge_slave_1) entered forwarding state [ 158.949099][ T8432] bridge0: port 1(bridge_slave_0) entered blocking state [ 158.956158][ T8432] bridge0: port 1(bridge_slave_0) entered forwarding state [ 158.975791][ T8432] 8021q: adding VLAN 0 to HW filter on device bond0 [ 158.985755][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 158.993819][ T34] bridge0: port 1(bridge_slave_0) entered disabled state [ 159.002055][ T34] bridge0: port 2(bridge_slave_1) entered disabled state [ 159.009697][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 159.018763][ T8432] 8021q: adding VLAN 0 to HW filter on device team0 [ 159.027107][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 159.035516][ T19] bridge0: port 1(bridge_slave_0) entered blocking state [ 159.042529][ T19] bridge0: port 1(bridge_slave_0) entered forwarding state [ 159.051483][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 159.059954][ T7] bridge0: port 2(bridge_slave_1) entered blocking state [ 159.066997][ T7] bridge0: port 2(bridge_slave_1) entered forwarding state [ 159.078527][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 159.086975][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 159.096588][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 159.106368][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 159.116730][ T8432] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 159.127498][ T8432] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 159.135388][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 159.148912][ T8432] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 159.157682][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 159.165738][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 159.182627][ T8432] device veth0_vlan entered promiscuous mode [ 159.188951][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 159.197753][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 159.205810][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 159.213284][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 159.223125][ T8432] device veth1_vlan entered promiscuous mode [ 159.235019][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 159.242817][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 159.251364][ T3238] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 159.260759][ T8432] device veth0_macvtap entered promiscuous mode [ 159.268959][ T8432] device veth1_macvtap entered promiscuous mode [ 159.279689][ T8432] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 159.287439][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready executing program [ 159.296390][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 159.308077][ T8432] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 159.315606][ T19] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 159.325532][ T8432] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.334219][ T8432] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.343216][ T8432] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.352155][ T8432] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 159.373180][ T8640] netlink: 'syz-executor921': attribute type 4 has an invalid length. executing program [ 164.612632][ T8641] netlink: 'syz-executor921': attribute type 4 has an invalid length. [ 165.673212][ T8432] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff888113abc0c0 (size 32): comm "syz-executor921", pid 8640, jiffies 4294953208 (age 12.550s) 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: [<000000003401cef4>] ip_mc_add_src+0x348/0x450 [<00000000fe48992e>] ip_mc_source+0x3d4/0x610 [<00000000db3cbccf>] ip_setsockopt+0x15d8/0x1f70 [<000000000fa81daa>] tcp_setsockopt+0x70/0x13f0 [<00000000d4c27e31>] __sys_setsockopt+0x1b0/0x360 [<00000000cf1e29df>] __x64_sys_setsockopt+0x22/0x30 [<00000000b6d61351>] do_syscall_64+0x2d/0x70 [<00000000dee687e6>] entry_SYSCALL_64_after_hwframe+0x44/0xa9