Internet Bug Bounty: memcpy negative size parameter in php_resolve_path

Upstream Bug --- https://bugs.php.net/bug.php?id=73189 Summary -- Multiple PHP functions are vulnerable to negative size parameter in memcpy call through phpresolvepath. Some of the affected functions are: filegetcontents, fileputcontents, file, readfile, getmetatags, gzopen, readgzfile, gzfile,...