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2016-12-16libxml2: fix CVE-2016-4658 Disallow namespace nodes in XPointer points and ↵Andrej Valek
ranges Namespace nodes must be copied to avoid use-after-free errors. But they don't necessarily have a physical representation in a document, so simply disallow them in XPointer ranges. Signed-off-by: Andrej Valek <andrej.valek@siemens.com> Signed-off-by: Pascal Bach <pascal.bach@siemens.com> Signed-off-by: Ross Burton <ross.burton@intel.com>