📄 liblcf 0.8.1 Integer Overflow

A crafted RPG Maker save file (`.lsd`) can trigger an integer overflow in
    liblcf’s lcfstrings compressed integer decoding logic
    (`LcfReader::ReadInt()`), resulting in an unbounded shift and accumulation
    loop. The overflowed value is later used in buffer size allocations and
    structure parsing, causing large memory access requests and parsing errors.
    
    
    *Steps to Reproduce*
    
    
    1. Use the attached `.lsd` file (see PoC section).
    
    2. Run: `./lcfstrings poc_overflow.lsd`
    
    3. Observe invalid reads such as:
    
       - `Read 4294967205 bytes!`
    
       - Multiple `Invalid Primitive` and `Corrupted Chunk` warnings
    
       - Crash or excessive memory consumption in affected builds
    
    
    *Proof of Concept:*
    
    
    A `.lsd` file with a malformed compressed integer containing 11 bytes of
    `0xFF` followed by `0x7F` triggers the overflow. This causes the loop in
    `ReadInt()` to shift left repeatedly and accumulate a 32-bit integer
    overflow (e.g., `0xFFFFFFFF`), resulting in corrupted internal values.