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Michael Paquier 4a49ab2890 xml2: Fix crash with namespace nodes in xpath_nodeset() 
pgxmlNodeSetToText() passed nodeTab[i]->doc to xmlNodeDump() without
checking the node type, which could cause a crash as a
XML_NAMESPACE_DECL maps to a xmlNs struct.  The passed-in code would
then be dereferenced in xmlNodeDump().

This commit switches the code to render XML_NAMESPACE_DECL nodes with
xmlXPathCastNodeToString(), like xpath_table().  Some tests are added,
written by me.

Author: Andrey Chernyy <andrey.cherny@tantorlabs.com>
Co-authored-by: Michael Paquier <michael@paquier.xyz>
Discussion: https://postgr.es/m/20260611031436.5afde3cb@andrnote
Backpatch-through: 14
2026-06-11 14:29:24 +09:00
..
expected xml2: Fix crash with namespace nodes in xpath_nodeset() 2026-06-11 14:29:24 +09:00
sql xml2: Fix crash with namespace nodes in xpath_nodeset() 2026-06-11 14:29:24 +09:00
.gitignore Support "make check" in contrib 2011-04-25 22:27:11 +03:00
Makefile Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
meson.build Update copyright for 2024 2024-01-03 20:49:05 -05:00
xml2--1.0--1.1.sql Update xml2 extension for parallel query. 2016-06-14 15:49:32 -04:00
xml2--1.1.sql Update xml2 extension for parallel query. 2016-06-14 15:49:32 -04:00
xml2.control Remove support for upgrading extensions from "unpackaged" state. 2020-02-19 16:59:14 -05:00
xpath.c xml2: Fix crash with namespace nodes in xpath_nodeset() 2026-06-11 14:29:24 +09:00
xslt_proc.c xml2: Fix failure with xslt_process() under -fsanitize=undefined 2026-03-13 16:06:47 +09:00