libxml2: fix compilation of explicit child axis in pattern

This was reported as sucurity fix in
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.12.10
https://gitlab.gnome.org/GNOME/libxml2/-/releases/v2.13.6

(From OE-Core rev: 0dc99e25c16a1e74aa80ca20132609990bb9dff7)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>

2 files changed, 32 insertions, 0 deletions

diff --git a/meta/recipes-core/libxml/libxml2/0001-pattern-Fix-compilation-of-explicit-child-axis.patch b/meta/recipes-core/libxml/libxml2/0001-pattern-Fix-compilation-of-explicit-child-axis.patch
new file mode 100644
index 0000000000..932c0ec422
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/0001-pattern-Fix-compilation-of-explicit-child-axis.patch
@@ -0,0 +1,31 @@
+From 503f788e84f1c1f1d769c2c7258d77faee94b5a3 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Thu, 13 Feb 2025 16:48:53 +0100
+Subject: [PATCH] pattern: Fix compilation of explicit child axis
+
+The child axis is the default axis and should generate XML_OP_ELEM like
+the case without an axis.
+
+Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/503f788e84f1c1f1d769c2c7258d77faee94b5a3]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ pattern.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/pattern.c b/pattern.c
+index 27e96946..3182794e 100644
+--- a/pattern.c
++++ b/pattern.c
+@@ -1178,10 +1178,10 @@ xmlCompileStepPattern(xmlPatParserContextPtr ctxt) {
+                            goto error;
+                        }
+                    } else {
+-                       PUSH(XML_OP_CHILD, token, URL);
++                       PUSH(XML_OP_ELEM, token, URL);
+                    }
+                } else
+-                   PUSH(XML_OP_CHILD, name, NULL);
++                   PUSH(XML_OP_ELEM, name, NULL);
+                return;
+            } else if (xmlStrEqual(name, (const xmlChar *) "attribute")) {
+                XML_PAT_FREE_STRING(ctxt, name)
diff --git a/meta/recipes-core/libxml/libxml2_2.9.14.bb b/meta/recipes-core/libxml/libxml2_2.9.14.bb
index ecaae0b436..912bcfd0f3 100644
--- a/meta/recipes-core/libxml/libxml2_2.9.14.bb
+++ b/meta/recipes-core/libxml/libxml2_2.9.14.bb
@@ -34,6 +34,7 @@ SRC_URI += "http://www.w3.org/XML/Test/xmlts20080827.tar;subdir=${BP};name=testt
            file://CVE-2024-25062.patch \
            file://CVE-2024-34459.patch \
            file://CVE-2022-49043.patch \
+           file://0001-pattern-Fix-compilation-of-explicit-child-axis.patch \
            "
 
 SRC_URI[archive.sha256sum] = "60d74a257d1ccec0475e749cba2f21559e48139efba6ff28224357c7c798dfee"