libxml2: patch CVE-2025-32415

Pick commit from 2.13 branch as 2.12 branch is unmaintained now.

(From OE-Core rev: 2335d4f0d1826647eaee224c469331980fc84ed2)

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

2 files changed, 40 insertions, 0 deletions

diff --git a/meta/recipes-core/libxml/libxml2/CVE-2025-32415.patch b/meta/recipes-core/libxml/libxml2/CVE-2025-32415.patch
new file mode 100644
index 0000000000..d8ff654a23
--- /dev/null
+++ b/meta/recipes-core/libxml/libxml2/CVE-2025-32415.patch
@@ -0,0 +1,39 @@
+From 384cc7c182fc00c6d5e2ab4b5e3671b2e3f93c84 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Sun, 6 Apr 2025 12:41:11 +0200
+Subject: [PATCH] [CVE-2025-32415] schemas: Fix heap buffer overflow in
+ xmlSchemaIDCFillNodeTables
+
+Don't use local variable which could contain a stale value.
+
+Fixes #890.
+
+CVE: CVE-2025-32415
+Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/384cc7c182fc00c6d5e2ab4b5e3671b2e3f93c84]
+Signed-off-by: Peter Marko <peter.marko@siemens.com>
+---
+ xmlschemas.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/xmlschemas.c b/xmlschemas.c
+index 28b14bd4..428e3c82 100644
+--- a/xmlschemas.c
++++ b/xmlschemas.c
+@@ -23324,7 +23324,7 @@ xmlSchemaIDCFillNodeTables(xmlSchemaValidCtxtPtr vctxt,
+                        j++;
+                    } while (j < nbDupls);
+                }
+-               if (nbNodeTable) {
++               if (bind->nbNodes) {
+                    j = 0;
+                    do {
+                        if (nbFields == 1) {
+@@ -23375,7 +23375,7 @@ xmlSchemaIDCFillNodeTables(xmlSchemaValidCtxtPtr vctxt,
+ 
+ next_node_table_entry:
+                        j++;
+-                   } while (j < nbNodeTable);
++                   } while (j < bind->nbNodes);
+                }
+                /*
+                * If everything is fine, then add the IDC target-node to
diff --git a/meta/recipes-core/libxml/libxml2_2.12.10.bb b/meta/recipes-core/libxml/libxml2_2.12.10.bb
index 42672e35bd..2eea65732b 100644
--- a/meta/recipes-core/libxml/libxml2_2.12.10.bb
+++ b/meta/recipes-core/libxml/libxml2_2.12.10.bb
@@ -19,6 +19,7 @@ SRC_URI += "http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=${BP};name=testt
            file://run-ptest \
            file://install-tests.patch \
            file://CVE-2025-32414.patch \
+           file://CVE-2025-32415.patch \
            "
 
 SRC_URI[archive.sha256sum] = "c3d8c0c34aa39098f66576fe51969db12a5100b956233dc56506f7a8679be995"