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AddressSanitizer, ThreadSanitizer, MemorySanitizer
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pcc Add a program.
This program was used to produce a list of stack tag masks sorted by the
probability of collision with a mask allocated (temporally) nearby.
Latest commit 606d5cb Jun 15, 2019


This project is the home for Sanitizers: AddressSanitizer, MemorySanitizer, ThreadSanitizer, LeakSanitizer, and more The actual code resides in the LLVM repository. Here we keep extended documentation, bugs and some helper code.

The documentation for our tools:

  • AddressSanitizer (detects addressability issues) and LeakSanitizer (detects memory leaks)
  • ThreadSanitizer (detects data races and deadlocks) for C++ and Go
  • MemorySanitizer (detects use of uninitialized memory)
  • HWASAN, or Hardware-assisted AddressSanitizer, a newer variant of AddressSanitizer that consumes much less memory
  • UBSan, or UndefinedBehaviorSanitizer

Some of the sanitizers are also available for different OS Kernels:

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