src: do not read string out of bounds

PR-URL: #51358 Reviewed-By: Yagiz Nizipli <[email protected]> Reviewed-By: Keyhan Vakil <[email protected]> Reviewed-By: Jiawen Geng <[email protected]>

Author: zcbenz

src/path.cc

@@ -24,15 +24,14 @@ std::string NormalizeString(const std::string_view path,
 int lastSegmentLength = 0;
 int lastSlash = -1;
 int dots = 0;
-char code;
-constauto pathLen = path.size();
-for (uint8_t i = 0; i <= pathLen; ++i){
-if (i < pathLen){
+char code = 0;
+for (size_t i = 0; i <= path.size(); ++i){
+if (i < path.size()){
  code = path[i];
- } elseif (IsPathSeparator(path[i])){
+ } elseif (IsPathSeparator(code)){
 break;
  } else{
- code = node::kPathSeparator;
+ code = '/';
  }
 
 if (IsPathSeparator(code)){