Unexpected Memory Value Fluctuations in GDB While Debugging Pointer in x86-64 C Program

In my last question, I misunderstood how GDB interprets memory when using different formats like x/d and x/1wd. After some digging, I realized the issue was related to GDB displaying the same memory contents as both signed and unsigned integers. That cleared up the confusion about the "flipping" values. Funny how I am facing a different issue with pointer manipulation and register inspection. I’m debugging a simple C program where $rbx is pointing to dynamically allocated memory. Here's the setup in my main.c file When I inspect $rbx in GDB, I expect it to point to the buffer and show the correct values as 28 and -5604 for ptr[0] and ptr[1]. When I execute these commands, I get some strange behavior which I logged in bash.txt . Been making use of x86-64, GDB version 10.1 and Ubuntu 20.04as my environment . The values at the memory location are flipping between 28 and -5604, even though the program hasn’t modified the memory or stepped through any new instructions. I’m not sure if this is like caching, memory alignment issues, or a problem with the heap?