use-after-free / dangling pointer

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How Code Becomes ExecutionHow Computers Work

More terms from this board

• ASTthe parsed syntax tree
• buffer overflowwriting past a buffer (overwrites the return address → exploit)
• bytecodeportable mid-level code for a VM
• CALL/RETpush-addr-and-jump / pop-and-jump
• compilersource → machine code ahead of time
• dereference (*)follow it
• GCgarbage collector (auto-frees the heap)
• interpreterruns source line-by-line
• JITcompile hot paths to native at runtime
• linkerjoins code + libraries
• memory leaknever freeing
• pointera variable holding an address
• segfaulttouching memory you don't own
• stack frameone call's locals + args + return address
• stack overflowtoo-deep recursion