[ 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 '10.128.0.139' (ECDSA) to the list of known hosts. syzkaller login: [ 175.597114][ T8406] IPVS: ftp: loaded support on port[0] = 21 [ 175.625177][ T8406] chnl_net:caif_netlink_parms(): no params data found [ 175.643318][ T8406] bridge0: port 1(bridge_slave_0) entered blocking state [ 175.650478][ T8406] bridge0: port 1(bridge_slave_0) entered disabled state [ 175.658429][ T8406] device bridge_slave_0 entered promiscuous mode [ 175.665629][ T8406] bridge0: port 2(bridge_slave_1) entered blocking state [ 175.672687][ T8406] bridge0: port 2(bridge_slave_1) entered disabled state [ 175.680137][ T8406] device bridge_slave_1 entered promiscuous mode [ 175.690622][ T8406] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 175.700571][ T8406] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 175.714276][ T8406] team0: Port device team_slave_0 added [ 175.720692][ T8406] team0: Port device team_slave_1 added [ 175.730192][ T8406] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 175.737239][ T8406] 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. [ 175.763172][ T8406] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 175.774372][ T8406] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 175.781471][ T8406] 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. [ 175.807376][ T8406] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 175.822726][ T8406] device hsr_slave_0 entered promiscuous mode [ 175.829116][ T8406] device hsr_slave_1 entered promiscuous mode [ 175.858690][ T8406] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 175.866631][ T8406] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 175.874169][ T8406] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 175.882027][ T8406] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 175.893587][ T8406] bridge0: port 2(bridge_slave_1) entered blocking state [ 175.900677][ T8406] bridge0: port 2(bridge_slave_1) entered forwarding state [ 175.907964][ T8406] bridge0: port 1(bridge_slave_0) entered blocking state [ 175.915342][ T8406] bridge0: port 1(bridge_slave_0) entered forwarding state [ 175.936051][ T8406] 8021q: adding VLAN 0 to HW filter on device bond0 [ 175.945674][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 175.953312][ T3252] bridge0: port 1(bridge_slave_0) entered disabled state [ 175.961172][ T3252] bridge0: port 2(bridge_slave_1) entered disabled state [ 175.969198][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 175.978356][ T8406] 8021q: adding VLAN 0 to HW filter on device team0 [ 175.986692][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 175.995205][ T34] bridge0: port 1(bridge_slave_0) entered blocking state [ 176.002245][ T34] bridge0: port 1(bridge_slave_0) entered forwarding state [ 176.014975][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 176.023226][ T34] bridge0: port 2(bridge_slave_1) entered blocking state [ 176.030309][ T34] bridge0: port 2(bridge_slave_1) entered forwarding state [ 176.038314][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 176.047621][ T34] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 176.058865][ T8406] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 176.069294][ T8406] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 176.080598][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 176.089039][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 176.097163][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 176.106396][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 176.118939][ T8406] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 176.126078][ T3810] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 176.133447][ T3810] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 176.149969][ T8406] device veth0_vlan entered promiscuous mode [ 176.156499][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 176.165140][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 176.173992][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 176.181601][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 176.191386][ T8406] device veth1_vlan entered promiscuous mode [ 176.203806][ T8406] device veth0_macvtap entered promiscuous mode [ 176.210862][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 176.219319][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 176.227425][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 176.235982][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 176.245169][ T8406] device veth1_macvtap entered promiscuous mode [ 176.256137][ T8406] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 176.263405][ T3252] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 176.273737][ T8406] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 176.281202][ T7] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 176.290781][ T8406] netdevsim netdevsim0 netdevsim0: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.299676][ T8406] netdevsim netdevsim0 netdevsim1: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.308571][ T8406] netdevsim netdevsim0 netdevsim2: set [1, 0] type 2 family 0 port 6081 - 0 executing program [ 176.317621][ T8406] netdevsim netdevsim0 netdevsim3: set [1, 0] type 2 family 0 port 6081 - 0 [ 176.336913][ T8614] netlink: 'syz-executor640': attribute type 4 has an invalid length. executing program [ 181.540764][ T8615] netlink: 'syz-executor640': attribute type 4 has an invalid length. [ 182.589235][ T8406] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff8881080778a0 (size 32): comm "syz-executor640", pid 8614, jiffies 4294954875 (age 12.480s) 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: [<000000005564b64d>] ip_mc_add_src+0x348/0x450 [<00000000277b406f>] ip_mc_source+0x3d4/0x610 [<00000000f59657a5>] ip_setsockopt+0x15d8/0x1f70 [<000000007412fda5>] tcp_setsockopt+0x70/0x13f0 [<00000000d24ba04a>] __sys_setsockopt+0x1b0/0x360 [<00000000c555ea51>] __x64_sys_setsockopt+0x22/0x30 [<0000000099f206af>] do_syscall_64+0x2d/0x70 [<00000000f1bab55e>] entry_SYSCALL_64_after_hwframe+0x44/0xa9