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Safe-Linking机制分析

环境搭建 下载glibc引入Safe-Linking机制版本: git clone git:sourceware.orggitglibc.gitcd glibcgit checkout 76d5b2f002a1243ddba06bd646249553353f4322 Safe-Linking 机制分析 打算从glibc 2.32引入Safe-Linking 保护,将堆块头部保存的地址重新计算,具体计算过程如下: #define PROTECT_PTR(pos, ptr Safe-Linking 机制绕过 主要就是泄漏L>>12的值,通过构造堆块,使得chunkC被包含在一个大堆块中,有两个指针同时指向chunkC,造成UAF,释放一个chunkC指针到tcache中, 此时chunkC为tcache中第一个bin,fd引入补丁前填充的是0,此时因为Safe-Linking,P = L >> 12 ^ P = L >> 12 ^ 0 = L >> 12。 并且没有Safe-Linking的引入,demo代码也能达到相同效果,因为此时泄露出来的L>>12为0,目标地址和0异或还是正确的地址。 综上所述,要绕过Safe-Linking主要就是泄露L的信息。

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Java 类的 Linking 和 Initializing 简单笔记

Java 类的生命周期分为 5 个阶段,分别是 Loading(加载)、Linking(连接)、Initializing(初始化)、Usin(使用) 和 Unloading(卸载)。 其中 Linking 阶段又分为 Verification(验证)、Preparation(准备) 和 Resolution(解析) 三个部分。 大致情况如下图所示。 一般所说的类加载指的是 Loading、Linking 和 Initializing 这几个阶段。其中,Loading 主要讨论关于 双亲委派、懒加载、自定义类加载器等相关的知识。 在 Linking 的 Preparation 阶段 和 Initializing 可以了解类静态成员变量的初始化。 二、Linking 阶段和 Initializing 阶段的所作所为 在类加载的 Linking 阶段中,主要完成了三个步骤,分别是 Verification、Preparation 和 Resolution

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    Xamarin 解决创建空白项目编译提示 linking references 找不到资源

    在新建一个 Xamarin 应用,编译时提示了 linking references 和一些诡异的文件无法访问,原因是文件路径问题和 NuGet 还原问题如果创建的 Xamarin 项目所在的文件路径比较深 ,同时包含中文等字符时,在编译时可以会诡异失败oidXamarin.Android.Aapt2.targets(155,3): error APT2062: failed linking references Windows 下的路径就超过了 260 字符限制,此时就编译不通过解决方法是尝试将项目移动到磁盘的第二级文件夹,然后使用删除所有的 bin 和 obj 文件夹,此时就可以解决这几个诡异的坑Failed linking xamarinxamarin-androidCreate a new Mobile.App (Xamarin.Forms) project, try to compile, but “Failed linking

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    ubuntu 18.04, 编译运行ORB_SLAM3, 遇到错误Pangolin X11: Unable to retrieve framebuffer options。

    CXX executable tutorial_1_gl_intro_pango_triangle Linking CXX executable SimpleVideo Linking CXX executable tutorial_5_gl_intro_view_transforms Linking CXX executable HelloPangolin Linking CXX executable SimpleDisplayImage Linking CXX executable tutorial_3_gl_intro_pango_triangle_vbo_shader Linking CXX executable SimpleScene SimpleDisplay Linking CXX executable Plotter Built target Plotter Linking CXX executable VideoJsonPrint Built target VideoJsonPrint Linking CXX executable VideoViewer Linking CXX executable VideoJsonTransform

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    利用语义分析实现知识库上的关系链接 (CS)

    原文题目:Leveraging Semantic Parsing for Relation Linking over Knowledge Bases原文:Knowledgebase question answering systems are heavily dependent on relation extraction and linking modules. To overcome these challenges, we present SLING, a relation linking framework which leverages semantic SLING integrates multiple relation linking approaches that capture complementary signals such as linguistic The experiments on relation linking using three KBQA datasets; QALD-7, QALD-9, and LC-QuAD 1.0 demonstrate

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    【译】React Native URL 路由库

    react-native-deep-linking一个 React Native 路由匹配用于处理 deep links 的库安装这个包已经发布到 npm 上面去了:npm install react-native-deep-linking facebook.github.ioreact-nativedocslinking.html用法引入 DeepLinkingimport DeepLinking from react-native-deep-linking ;注册 schemesDeepLinking.addScheme(example:);新增事件监听import { Linking } from react-native; Linking.addEventListener console.error(An error occurred, err));}举个栗子import React, { Component } from react;import { Button, Linking , StyleSheet, Text, View } from react-native; import DeepLinking from react-native-deep-linking; export

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    【论文推荐】最新5篇自动问答相关论文——多关系自动问答、知识图谱联合实体和关系、生物医学问题、维基百科语料数据、多句式旅游推荐

    EARL: Joint Entity and Relation Linking for Question Answering over Knowledge Graphs(EARL:基于知识图谱的联合实体和关系的自动问答 Traditionally, entity linking and relation linking has been performed either as dependent sequential In this paper, we propose a framework called EARL, which performs entity linking and relation linking We model the linking task as an instance of the Generalised Travelling Salesman Problem (GTSP) and use Our system surpasses state-of-the-art scores for entity linking task by reporting an accuracy of 0.65

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    模式链接与文本到SQL性能之间的调查(CS CL)

    原文题目:An Investigation Between Schema Linking and Text-to-SQL Performance原文:Text-to-SQL is a crucial task of models at hand becomes much easier to analyze if we identify the detailed performance of schema linking We provide the ground-truth annotation of schema linking information onto the Spider dataset.

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    神经实体链接技术服务票证(CS CL)

    原文标题:Neural Entity Linking on Technical Service Tickets原文:Entity linking, the task of mapping textual Using an entity linking model based on BERT, a popular transformer network in natural language processing

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    给推文的多模态实体链接(cs IR)

    原文题目:Multimodal Entity Linking for Tweets原文:In many information extraction applications, entity linking In this paper, we address the task of multimodal entity linking (MEL), an emerging research field in

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    通过demo学习OpenStack开发

    AUTHORS -> webdemo-0.0.1hard linking ChangeLog -> webdemo-0.0.1hard linking LICENSE -> webdemo-0.0.1hard linking README.md -> webdemo-0.0.1hard linking requirement.txt -> webdemo-0.0.1hard linking setup.cfg -> webdemo-0.0.1hard linking setup.py -> webdemo-0.0.1hard linking webdemo__init__.py -> webdemo-0.0.1webdemohard linking webdemo.egg-infoPKG-INFO -> webdemo-0.0.1webdemo.egg-infohard linking webdemo.egg-infoSOURCES.txt linking webdemo.egg-infoentry_points.txt -> webdemo-0.0.1webdemo.egg-infohard linking webdemo.egg-infonot-zip-safe

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    做了Nebula3的应用程序向导

    Pooling Yes(GF) Enable C++ Exceptions No Runtime Library Multi-threaded Debug(MTd) Enable Function-Level Linking Yes(Gy) Floating Point Model Fast(fp:fast) Compile As Default Linker Enable Incremental Linking Default Security Check No(GS-) Floating Point Model Fast(fp:fast) Compile As Default Linker Enabled Incremental Linking

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    YouCompleteMe插件问题:The ycmd server SHUT DOWN

    codecvt_facet.cpp.o Building CXX object BoostPartsCMakeFilesBoostParts.dirlibssystemsrcerror_code.cpp.o Linking object ycmCMakeFilesycm_core.dirWord.cpp.o Building CXX object ycmCMakeFilesycm_core.dirversioning.cpp.o Linking CMakeFiles_regex.dirregex_2_regex_unicode.c.o Building C object CMakeFiles_regex.dirregex_2_regex.c.o Linking

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    python高级-包(15)

    -1.0creating Se7eN_HOU-1.0sub_Acreating Se7eN_HOU-1.0sub_Bmaking hard links in Se7eN_HOU-1.0...hard linking setup.py -> Se7eN_HOU-1.0hard linking sub_A__init__.py -> Se7eN_HOU-1.0sub_Ahard linking sub_Aa.py - > Se7eN_HOU-1.0sub_Ahard linking sub_B__init__.py -> Se7eN_HOU-1.0sub_Bhard linking sub_Bb.py -> Se7eN_HOU

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    聊聊jvm的StringTable及SymbolTable

    Metaspace移到了non-heap中SymbolTablesymbolic references in Runtime Constant Pool一个完整的类加载过程必须经历加载(Loading)、连接(Linking 关键字标识的代码统一执行一遍,如果执行的是静态变量,那么就会使用用户指定的值覆盖之前在准备阶段设置的初始值;如果执行的是static代码块,那么在初始化阶段,JVM就会执行static代码块中定义的所有操作在连接(Linking references(Runtime Constant Pool除了symbolic references还包含了static constants),它是在类加载的时候(Resolution in Linking Loading, Linking, and Initializing5.1. about StringDifference between String literal and New String object in JavaUnderstand JVM Loading, JVM Linking

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    mingw(gcc)编译openjpeg

    srclibopenjp2CMakeFilesopenjp2.dirtgt.c.obj Building C object srclibopenjp2CMakeFilesopenjp2.dirfunction_list.c.obj Linking _generate_luts Building C object srclibopenjp2CMakeFilest1_generate_luts.dirt1_generate_luts.c.obj Linking srcbinjp2CMakeFilesopj_compress.dir__commoncolor.c.obj Building C object srcbinjp2CMakeFilesopj_compress.dir__commonopj_getopt.c.obj Linking _commoncolor.c.obj Building C object srcbinjp2CMakeFilesopj_decompress.dir__commonopj_getopt.c.obj Linking srcbinjp2CMakeFilesopj_dump.dir__commoncolor.c.obj Building C object srcbinjp2CMakeFilesopj_dump.dir__commonopj_getopt.c.obj Linking

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    棋盘格检测--Automatic Detection of Checkerboards on Blurred and Distorted Images

    Quadrangle Linking: 四边形连接,如何将检测到的四边形连接起来了? New Heuristic for Quadrangle Linking 广角相机造成的畸变导致 上面的 Quadrangle Linking 不能正常工作。 Adaptive Quadrangle Linking Distance 四边形连接距离阈值的自适应 这里的阈值自适应主要是考虑腐蚀的影响 incorporate the effect of erosion Linking of Quadrangles over Multiple Erosion Runs 连接 不同腐蚀步骤的四边形,就是将其他腐蚀步骤检测到的四边形 加入到目前腐蚀步骤的四边形检测结果中。

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    安装glog和gflags

    must either use libtool, andspecify the full pathname of the library, or use the -LLIBDIRflag during linking LD_LIBRARY_PATH environment variable during execution - add LIBDIR to the LD_RUN_PATH environment variable during linking

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    面向通用形式理解的端到端层次关系抽取

    link prediction, enriching the spatial information flow with the additional supervision from entity linking substantially outperforms the original model and state-of-the-art baselines in both Entity Labeling and Entity Linking

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    gcc命令

    The linking stage simply is not done. -l Search the library named library when linking. libworld.so的so文件,头文件优先在include文件夹下搜索 -static(强制使用静态链接库)使用静态链接库(.a),不适用动态的so文件On systems that support dynamic linking , this prevents linking with the shared libraries.

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