[ 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 '10.128.0.209' (ECDSA) to the list of known hosts. 2020/04/18 16:24:11 parsed 1 programs syzkaller login: [ 74.959617][ T3837] kmemleak: Automatic memory scanning thread ended 2020/04/18 16:24:20 executed programs: 0 [ 82.341426][ T25] audit: type=1400 audit(1587227060.314:8): avc: denied { execmem } for pid=6643 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 82.369514][ T6644] IPVS: ftp: loaded support on port[0] = 21 [ 82.396851][ T6644] chnl_net:caif_netlink_parms(): no params data found [ 82.432498][ T6644] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.439788][ T6644] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.447407][ T6644] device bridge_slave_0 entered promiscuous mode [ 82.454717][ T6644] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.461862][ T6644] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.469369][ T6644] device bridge_slave_1 entered promiscuous mode [ 82.479312][ T6644] bond0: (slave bond_slave_0): Enslaving as an active interface with an up link [ 82.489281][ T6644] bond0: (slave bond_slave_1): Enslaving as an active interface with an up link [ 82.503230][ T6644] team0: Port device team_slave_0 added [ 82.509866][ T6644] team0: Port device team_slave_1 added [ 82.518399][ T6644] batman_adv: batadv0: Adding interface: batadv_slave_0 [ 82.525344][ T6644] 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. [ 82.551243][ T6644] batman_adv: batadv0: Not using interface batadv_slave_0 (retrying later): interface not active [ 82.562204][ T6644] batman_adv: batadv0: Adding interface: batadv_slave_1 [ 82.569144][ T6644] 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. [ 82.595017][ T6644] batman_adv: batadv0: Not using interface batadv_slave_1 (retrying later): interface not active [ 82.625849][ T6644] device hsr_slave_0 entered promiscuous mode [ 82.655130][ T6644] device hsr_slave_1 entered promiscuous mode [ 82.694744][ T6644] netdevsim netdevsim0 netdevsim0: renamed from eth0 [ 82.725894][ T6644] netdevsim netdevsim0 netdevsim1: renamed from eth1 [ 82.755833][ T6644] netdevsim netdevsim0 netdevsim2: renamed from eth2 [ 82.795754][ T6644] netdevsim netdevsim0 netdevsim3: renamed from eth3 [ 82.859959][ T6644] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.866999][ T6644] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.874192][ T6644] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.881221][ T6644] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.898782][ T6644] 8021q: adding VLAN 0 to HW filter on device bond0 [ 82.907458][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 82.915961][ T6220] bridge0: port 1(bridge_slave_0) entered disabled state [ 82.923151][ T6220] bridge0: port 2(bridge_slave_1) entered disabled state [ 82.931184][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 82.939852][ T6644] 8021q: adding VLAN 0 to HW filter on device team0 [ 82.947636][ T3919] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 82.955894][ T3919] bridge0: port 1(bridge_slave_0) entered blocking state [ 82.963018][ T3919] bridge0: port 1(bridge_slave_0) entered forwarding state [ 82.971445][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 82.979759][ T3073] bridge0: port 2(bridge_slave_1) entered blocking state [ 82.986786][ T3073] bridge0: port 2(bridge_slave_1) entered forwarding state [ 82.997718][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 83.005987][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 83.014473][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 83.025534][ T6644] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 83.035938][ T6644] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 83.047016][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 83.055219][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 83.063103][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 83.073434][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready [ 83.080839][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready [ 83.089815][ T6644] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 83.100341][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 83.112342][ T6644] device veth0_vlan entered promiscuous mode [ 83.118562][ T2671] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 83.126661][ T2671] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 83.134000][ T2671] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 83.142810][ T6644] device veth1_vlan entered promiscuous mode [ 83.149405][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan0: link becomes ready [ 83.161329][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): macvlan1: link becomes ready [ 83.169281][ T6220] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 83.178167][ T6644] device veth0_macvtap entered promiscuous mode [ 83.185593][ T6644] device veth1_macvtap entered promiscuous mode [ 83.195277][ T6644] batman_adv: batadv0: Interface activated: batadv_slave_0 [ 83.202623][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 83.211403][ T3073] IPv6: ADDRCONF(NETDEV_CHANGE): macvtap0: link becomes ready [ 83.220368][ T6644] batman_adv: batadv0: Interface activated: batadv_slave_1 [ 83.227650][ T16] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready 2020/04/18 16:24:26 executed programs: 1 [ 94.322674][ T6872] kmemleak: 1 new suspected memory leaks (see /sys/kernel/debug/kmemleak) [ 96.612724][ T6872] kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) BUG: memory leak unreferenced object 0xffff88811945f280 (size 32): comm "syz-executor.0", pid 6865, jiffies 4294945601 (age 13.430s) hex dump (first 32 bytes): 00 a9 64 84 ff ff ff ff a8 9c b4 83 ff ff ff ff ..d............. 00 00 00 00 00 00 00 00 5f 74 3a 73 30 00 00 00 ........_t:s0... backtrace: [<000000009dbe205c>] genl_rcv_msg+0x360/0x520 [<00000000b3c5e8a3>] netlink_rcv_skb+0x5a/0x180 [<00000000fcaf2e67>] genl_rcv+0x24/0x40 [<000000009a545bf2>] netlink_unicast+0x20a/0x2f0 [<0000000039415f2b>] netlink_sendmsg+0x2b5/0x560 [<000000006a843c2a>] sock_sendmsg+0x4c/0x60 [<00000000b8fb2ab0>] ____sys_sendmsg+0x2c0/0x2f0 [<00000000dd22b57d>] ___sys_sendmsg+0x8a/0xd0 [<00000000e304c815>] __sys_sendmsg+0x77/0xe0 [<00000000eb63a697>] do_syscall_64+0x6e/0x220 [<0000000051d20c7f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811c122440 (size 32): comm "syz-executor.0", pid 6870, jiffies 4294946164 (age 7.800s) hex dump (first 32 bytes): 00 a9 64 84 ff ff ff ff a8 9c b4 83 ff ff ff ff ..d............. 00 00 00 00 00 00 00 00 5f 74 3a 73 30 00 00 00 ........_t:s0... backtrace: [<000000009dbe205c>] genl_rcv_msg+0x360/0x520 [<00000000b3c5e8a3>] netlink_rcv_skb+0x5a/0x180 [<00000000fcaf2e67>] genl_rcv+0x24/0x40 [<000000009a545bf2>] netlink_unicast+0x20a/0x2f0 [<0000000039415f2b>] netlink_sendmsg+0x2b5/0x560 [<000000006a843c2a>] sock_sendmsg+0x4c/0x60 [<00000000b8fb2ab0>] ____sys_sendmsg+0x2c0/0x2f0 [<00000000dd22b57d>] ___sys_sendmsg+0x8a/0xd0 [<00000000e304c815>] __sys_sendmsg+0x77/0xe0 [<00000000eb63a697>] do_syscall_64+0x6e/0x220 [<0000000051d20c7f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff88811945f240 (size 32): comm "syz-executor.0", pid 6871, jiffies 4294946164 (age 7.800s) hex dump (first 32 bytes): 00 a9 64 84 ff ff ff ff a8 9c b4 83 ff ff ff ff ..d............. 00 00 00 00 00 00 00 00 5f 74 3a 73 30 00 00 00 ........_t:s0... backtrace: [<000000009dbe205c>] genl_rcv_msg+0x360/0x520 [<00000000b3c5e8a3>] netlink_rcv_skb+0x5a/0x180 [<00000000fcaf2e67>] genl_rcv+0x24/0x40 [<000000009a545bf2>] netlink_unicast+0x20a/0x2f0 [<0000000039415f2b>] netlink_sendmsg+0x2b5/0x560 [<000000006a843c2a>] sock_sendmsg+0x4c/0x60 [<00000000b8fb2ab0>] ____sys_sendmsg+0x2c0/0x2f0 [<00000000dd22b57d>] ___sys_sendmsg+0x8a/0xd0 [<00000000e304c815>] __sys_sendmsg+0x77/0xe0 [<00000000eb63a697>] do_syscall_64+0x6e/0x220 [<0000000051d20c7f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9