Fix #12803 fuzzing crash in Tokenizer::setVarIdPass2() (#6530)

danmar · Jun 15, 2024 · a5e2456 · a5e2456
1 parent 27f155c
commit a5e2456
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diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
@@ -5107,6 +5107,8 @@ void Tokenizer::setVarIdPass2()
                 classnameTokens.push_back(tokStart->next());
                 tokStart = tokStart->tokAt(2);
             }
+            if (!tokStart)
+                syntaxError(tok);
         }
 
         std::string classname;

diff --git a/test/cli/fuzz-crash_c/crash-7af21bec1d9be105742fdcb336514aae26ab4425 b/test/cli/fuzz-crash_c/crash-7af21bec1d9be105742fdcb336514aae26ab4425
@@ -0,0 +1,2 @@
+i
+class q::_