diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index 9d719cfaafa..6aa923a3667 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -8635,6 +8635,8 @@ void Tokenizer::findGarbageCode() const
             syntaxError(tok);
         if (Token::Match(tok, "==|!=|<=|>= %comp%") && tok->strAt(-1) != "operator")
             syntaxError(tok, tok->str() + " " + tok->strAt(1));
+        if (Token::simpleMatch(tok, ":: ::"))
+            syntaxError(tok);
     }
 
     // ternary operator without :
diff --git a/test/cli/fuzz-timeout/timeout-a0b9848dd6e98677a0a96c5fc50ad571ed5a7092 b/test/cli/fuzz-timeout/timeout-a0b9848dd6e98677a0a96c5fc50ad571ed5a7092
new file mode 100644
index 00000000000..2f29da2e360
--- /dev/null
+++ b/test/cli/fuzz-timeout/timeout-a0b9848dd6e98677a0a96c5fc50ad571ed5a7092
@@ -0,0 +1,2 @@
+t i(){int
+t,?:0::::}
\ No newline at end of file