DrMemory
Dr. Memory is a memory monitoring tool capable of identifying memory-related programming errors such as accesses of uninitialized memory, accesses to unaddressable memory (including outside of allocated heap units and heap underflow and overflow), accesses to freed memory, double frees, memory leaks, and (on Windows) handle leaks, GDI API usage errors, and accesses to un-reserved thread local storage slots.
Dr. Memory operates on unmodified application binaries running on Windows, Linux, or Mac on commodity IA-32 and AMD64 hardware. Dr. Memory currently targets 32-bit applications only.
Dr. Memory is built on the DynamoRIO dynamic instrumentation tool platform.