r0 = socket$nl_netfilter(0x10, 0x3, 0xc) sendmsg$IPCTNL_MSG_CT_DELETE(r0, &(0x7f0000000640)={0x0, 0x0, &(0x7f0000000600)={&(0x7f00000003c0)={0x18, 0x2, 0x1, 0x401, 0x0, 0x0, {0x2}, [@CTA_TUPLE_ORIG={0x4}]}, 0x18}}, 0x0)