address-sanitizer

To detect buffer overflows and use-after-free errors during C++ fuzzing, compile your code with AddressSanitizer using the -fsanitize=address flag to enable compile-time instrumentation and runtime memory checks.

Yes, AddressSanitizer works with both clang and GCC on supported platforms. You must enable compile-time instrumentation and runtime support by passing the -fsanitize=address flag during your build process.

Instrument a fuzz harness by compiling the target C/C++ code with the -fsanitize=address flag, which inserts runtime checks to detect invalid memory operations like buffer overflows and use-after-free during fuzzing execution.

The shadow memory model tracks application memory usage by mapping each memory region to a shadow state, enabling the runtime to detect invalid memory accesses and memory corruption during native code execution.

AddressSanitizer requires compile-time instrumentation, meaning it cannot detect errors in uninstrumented binaries or system libraries, and it introduces runtime overhead and increased memory usage due to shadow memory tracking.

You need AddressSanitizer when validating native code safety during tests or fuzzing workflows to actively catch memory corruption issues like buffer overflows and use-after-free in C/C++ libraries that might otherwise go undetected.