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Hash : 8880170e
Author :
Date : 2012-08-27T16:20:05
Fix the XPath arity check to also check the XPath stack limits Example xmlXPathNormalizeFunction() would do CHECK_ARITY(1) and the expect valuePop(ctxt); to return an object, except now valuePop() looks at the XPath stack frames and fails returning NULL, and we end up crashing dereferencing the object. Real solution is to exten CHECK_ARITY() and recompile all XPath functions using it.
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