[XERCESJ-1694] Avoid stack overflow when using xpointer between two resources

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: SAX
• Assignee: Unassigned
• Reporter: Radu Coravu
• Created: 08/May/18 06:18
• Updated: 25/May/18 10:14

Description

Let' say I have two documents:

1) "a.xml":

<book xmlns="http://docbook.org/ns/docbook"
    xmlns:xlink="http://www.w3.org/1999/xlink"
    xmlns:xi="http://www.w3.org/2001/XInclude"
    xml:id="a-book"
    version="5.0">
    <title>A</title>
    <chapter xml:id="a-chapter">
        <title>a chapter</title>
        <para>foo</para>
    </chapter>
    <xi:include href="b.xml" xpointer="b-chapter"/>
</book>

2) "b.xml":

<book xmlns="http://docbook.org/ns/docbook"
    xmlns:xlink="http://www.w3.org/1999/xlink"
    xmlns:xi="http://www.w3.org/2001/XInclude"
    xml:id="b-book"
    version="5.0">
    <title>B</title>
    <chapter xml:id="b-chapter">
        <title>b chapter</title>
        <para>foo</para>
    </chapter>
    <xi:include href="a.xml" xpointer="a-chapter"/>
</book>

When using a SAX parser to parse "a.xml" a stack overflow occurs although according to the XInclude specs this is a legal situation, the xpointer parts to a part of b.xml.