759579.xml

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Hash : 899a5d9f
Author :
Date : 2017-07-25T14:59:49

Detect infinite recursion in parameter entities

When expanding a parameter entity in a DTD, infinite recursion could
lead to an infinite loop or memory exhaustion.

Thanks to Wei Lei for the first of many reports.

Fixes bug 759579.

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test/errors/759579.xml

<!DOCTYPE doc [
    <!ENTITY % z '
        &#37;z; &#37;z; &#37;z; &#37;z; &#37;z;
        &#37;z; &#37;z; &#37;z; &#37;z; &#37;z;
        &#37;z; &#37;z; &#37;z; &#37;z; &#37;z;
        &#37;z; &#37;z; &#37;z; &#37;z; &#37;z;
        &#37;z; &#37;z; &#37;z; &#37;z; &#37;z;
    '>
    %z;
]>
<doc/>

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kc3-lang/libxml2/test/errors/759579.xml

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test/errors/759579.xml