kgo: error if RecordReader layout is empty

twmb · Nov 9, 2021 · cfb4a7f · cfb4a7f
1 parent 1dc56ec
commit cfb4a7f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/pkg/kgo/record_formatter.go b/pkg/kgo/record_formatter.go
@@ -966,6 +966,10 @@ func (p *parseRecordBits) set(r parseRecordBits)     { *p = *p | r }
 func (p parseRecordBits) has(r parseRecordBits) bool { return p&r != 0 }
 
 func (r *RecordReader) parseReadLayout(layout string) error {
+	if len(layout) == 0 {
+		return errors.New("RecordReader: invalid empty format")
+	}
+
 	var (
 		// If we are reading by size, we parse the layout size into one
 		// of these variables. When reading, we use the captured