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Fix #12512 fuzzing timeout in compileExpression() #6160

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merged 1 commit into from
Mar 20, 2024
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Fix #12512 fuzzing timeout in compileExpression() #6160

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5 changes: 4 additions & 1 deletion lib/tokenlist.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1758,7 +1758,10 @@ static Token * createAstAtToken(Token *tok)
void TokenList::createAst() const
{
for (Token *tok = mTokensFrontBack.front; tok; tok = tok ? tok->next() : nullptr) {
tok = createAstAtToken(tok);
Token* const nextTok = createAstAtToken(tok);
if (precedes(nextTok, tok))
throw InternalError(tok, "Syntax Error: Infinite loop when creating AST.", InternalError::AST);
tok = nextTok;
}
}

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1 change: 1 addition & 0 deletions test/cli/fuzz-timeout/timeout-0ee5eed9abd34e9d23640a5b82dd724affd05b79
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
;new t()
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