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Re: [REVIEW] Re: Fix xpath() to return namespace definitions - Mailing list pgsql-hackers

From Peter Eisentraut
Subject Re: [REVIEW] Re: Fix xpath() to return namespace definitions
Date
Msg-id 5458ED21.7050406@gmx.net
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In response to Re: [REVIEW] Re: Fix xpath() to return namespace definitions  (Ali Akbar <the.apaan@gmail.com>)
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On 7/11/14 4:36 AM, Ali Akbar wrote:
> But i found some bug in libxml2's code, because we call xmlCopyNode with
> 1 as the second parameter, internally xmlCopyNode will call
> xmlStaticCopyNode recursively via xmlStaticCopyNodeList. And
> xmlStaticCopyNodeList doesn't check the return of xmlStaticCopyNode
> whether it's NULL. So if someday the recursion returns NULL (maybe
> because of memory exhaustion), it will SEGFAULT.
> 
> Knowing this but in libxml2 code, is this patch is still acceptable?

This problem was fixed in libxml2 2.9.2 (see
https://bugzilla.gnome.org/show_bug.cgi?id=708681).

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