Memory corruption detection technologies are described. A processor core of a processor can receive a first pointer produced by a first memory access instruction of an application being executed by the processor. The first pointer includes a first memory address of a first memory object and a third metadata value and the memory address identifies a memory block in the first set of one or more contiguous memory blocks. The processor core compares the third metadata value to the first metadata value and communicates a memory corruption detection message to the application when the third metadata value does not match the first metadata value. The processor core provides the first memory object to the application when the third metadata value matches the first metadata value.