Fix rune decode error check in utf8 checker

ProtonMail · Jan 9, 2024 · b3f9e83 · b3f9e83
1 parent 9f86dd9
commit b3f9e83
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/internal/utf8.go b/internal/utf8.go
@@ -38,7 +38,7 @@ func (c *utf8Checker) check(p []byte) error {
 			continue
 		}
 		r, sizeRune := utf8.DecodeRune(p[pos:])
-		if r == utf8.RuneError {
+		if r == utf8.RuneError && sizeRune == 1 {
 			remaining := len(p) - pos
 			if remaining < maxSize {
 				// Could still be valid utf-8 on next check