Примеры из документации JetBrains по CLion.

ASan/README.md

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+# AddressSanitizer
+
+[AddressSanitizer (ASan)](https://github.com/google/sanitizers/wiki/AddressSanitizer) -
+детектор порчи памяти. Может находить следующие типы ошибок:
+
+- Heap-, stack-, and global buffer overflow
+- Use-after-free (dangling pointer dereference)
+- Use-after-scope ```-fsanitize-address-use-after-scope```
+- Use-after-return (pass ```detect_stack_use_after_return=1``` to ```ASAN_OPTIONS```)
+- Double free, invalid free
+- Initialization order bugs
+
+ASan приостанавливается на первой обнаруженной ошибке.
+Чтобы изменить это поведение нужно добавить флаг компиляции ```-fsanitize-recover=address```
+и ```halt_on_error=false``` в ```ASAN_OPTIONS```.

ASan/global-buffer-overflow/.gitignore

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+# ---------------------------------------------------------------------------
+# https://github.com/github/gitignore/blob/master/Global/JetBrains.gitignore
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+# ---------------------------------------------------------------------------

ASan/global-buffer-overflow/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.14)
+project(global-buffer-overflow)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -fno-omit-frame-pointer -O1")
+
+add_executable(
+        global-buffer-overflow
+        main.cpp
+)

ASan/global-buffer-overflow/README.md

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+![Снимок экрана 2019-09-10 в 17.48.12](%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%202019-09-10%20%D0%B2%2017.48.12.png)
+
+![Снимок экрана 2019-09-10 в 18.57.15](%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%202019-09-10%20%D0%B2%2018.57.15.png)
+

ASan/global-buffer-overflow/main.cpp

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+int global_array[100] = { -1 };
+
+int main(int argc, const char * argv[]) {
+    return global_array[argc + 100];  // global buffer overflow
+}

LSan/README.md

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+# LeakSanitizer
+
+[LeakSanitizer (LSan)](https://github.com/google/sanitizers/wiki/AddressSanitizerLeakSanitizer)
+детектор утечек памяти. В stand-alone режиме это run-time инструмент
+не требующий инструментов компиляции. LSan интегрирован в AddressSanitizer
+поэтому можно их совместить для обнаружения ошибок памяти и утечек памяти.
+
+Чтобы включить LeakSanitizer как часть AddressSanitizer нужно передать
+```detect_leaks=1``` в переменную ```ASAN_OPTIONS```. Чтобы выключить
+```detect_leaks=0```.
+
+Чтобы запустить только LSan нужно использовать ```-fsanitize=leak``` вместо
+```-fsanitize=address```.

LSan/no-del-of-heap-alloc-obj/.gitignore

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+# ---------------------------------------------------------------------------
+# https://github.com/github/gitignore/blob/master/Global/JetBrains.gitignore
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and WebStorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+# ---------------------------------------------------------------------------

LSan/no-del-of-heap-alloc-obj/CMakeLists.txt

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+cmake_minimum_required(VERSION 3.14)
+project(no-del-of-heap-alloc-obj)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=leak")
+
+add_executable(
+        no-del-of-heap-alloc-obj
+        main.cpp
+)

LSan/no-del-of-heap-alloc-obj/README.md

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+![Снимок экрана 2019-09-10 в 21.16.27](%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%202019-09-10%20%D0%B2%2021.16.27.png)
+
+![Снимок экрана 2019-09-10 в 21.17.03](%D0%A1%D0%BD%D0%B8%D0%BC%D0%BE%D0%BA%20%D1%8D%D0%BA%D1%80%D0%B0%D0%BD%D0%B0%202019-09-10%20%D0%B2%2021.17.03.png)
+

LSan/no-del-of-heap-alloc-obj/main.cpp

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+int main(int argc, const char * argv[]) {
+    int *x = new int(10);
+    return 0;
+}

LSan/small-app-with-mem-leak/.gitignore

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+# ---------------------------------------------------------------------------
+# https://github.com/github/gitignore/blob/master/C.gitignore
+
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+# ---------------------------------------------------------------------------

LSan/small-app-with-mem-leak/REFERENCES.md

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+# Stack Overflow
+
+- [macos - Mac OS: Leaks Sanitizer](https://stackoverflow.com/a/55778432)
+- [Build LLVM / Clang on MacOS](https://gist.github.com/datlife/c754535f18b422f6b8d59028c7f31bac)
+
+If we are using XCode 10, you will notice that if you navigate to /usr in the
+Finder, you will not see a folder called 'include' anymore which is why the
+terminal complains of the absence of the header files which is contained inside
+the 'include' folder. In this [release statement](https://developer.apple.com/documentation/xcode_release_notes/xcode_10_release_notes),
+(you navigate to _/Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg_
+and run that package to have the 'include' folder installed). Then you should be
+good to go.
+
+- [c++ - Getting llvm/clang (from brew) working on OSX](https://stackoverflow.com/a/54659928)
+- [macos - Can't compile C program on a Mac after upgrade to Mojave](https://stackoverflow.com/questions/52509602/cant-compile-c-program-on-a-mac-after-upgrade-to-mojave/52530212#comment91963866_52509602)
+
+# Homebrew
+
+- [Clang can no longer find /usr/include header files? fatal error: 'stdlib.h' file not found](https://discourse.brew.sh/t/clang-can-no-longer-find-usr-include-header-files-fatal-error-stdlib-h-file-not-found/4523/2)

LSan/small-app-with-mem-leak/build-and-run.sh

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+#!/usr/bin/env bash
+
+
+# clang -fsanitize=address -g mleak.c; ASAN_OPTIONS=detect_leaks=1 ./a.out
+
+# ==11499==AddressSanitizer: detect_leaks is not supported on this platform.
+# ./build-and-run.sh: line 3: 11499 Abort trap: 6           ASAN_OPTIONS=detect_leaks=1 ./a.out
+
+
+export PATH="/usr/local/opt/llvm/bin:$PATH"
+which clang
+
+# https://discourse.brew.sh/t/clang-can-no-longer-find-usr-include-header-files-fatal-error-stdlib-h-file-not-found/4523
+# clang -I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/usr/include \
+#     -fsanitize=address -g mleak.c \
+#     && ASAN_OPTIONS=detect_leaks=1 ./a.out
+
+clang \
+    -fsanitize=address -g mleak.c \
+    && ASAN_OPTIONS=detect_leaks=1 ./a.out

LSan/small-app-with-mem-leak/mleak.c

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+#include <stdlib.h>
+
+void *p;
+
+int main() {
+    p = malloc(7);
+    p = 0;  // The memory is leaked here.
+    return 0;
+}

MSan/README.md

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+# MemorySanitizer
+
+[MemorySanitizer (MSan)](https://github.com/google/sanitizers/wiki/MemorySanitizer)
+обнаруживает чтения неинициализированной памяти. Ищутся случаи, когда
+stack- или heap-allocated память читается перед записью. MSan может также
+отслеживать неинициализированные биты в bitfield.
+
+**MSan доступен только в Clang для Linux x86_64 targets.**
+
+MSan может отследить происхождение неинициализированного значения в том месте,
+где оно было создано, и сообщить эту информацию.
+Флаг ```-fsanitize-memory-track-origins``` включает эту функциональность.