Forenser Retaddr

spbctf

Task: given a raw x86_64 Linux stack VMA dump, find the return address of main. Solution: parse argv/envp/auxv to anchor the layout, walk the saved-rbp/return-address chain from the top of the live stack, and identify main's frame whose return address points into libc (__libc_start_call_main wrapper introduced in glibc 2.34), not into _start.