fix: Check for short reads in Reader::read_str (#1068)

1 files changed, 6 insertions, 1 deletions

diff --git a/src/core/Reader.hpp b/src/core/Reader.hpp
index a352b9a5..291c3562 100644
--- a/src/core/Reader.hpp
+++ b/src/core/Reader.hpp
@@ -72,7 +72,12 @@ inline std::string
 Reader::read_str(const size_t length)
 {
   std::string value(length, 0);
-  read(&value[0], length);
+  if (length > 0) {
+    const auto bytes_read = read(&value[0], length);
+    if (bytes_read != length) {
+      throw core::Error("Read underflow");
+    }
+  }
   return value;
 }