fix CVE-2024-56171, CVE-2025-24928, CVE-2025-27113

(cherry picked from commit 9efb27c3c959b8e7fea4d94069bdc91f511942c4)

backport-CVE-2024-56171.patch

@@ -0,0 +1,41 @@
+From 245b70d7d2768572ae1b05b3668ca858b9ec4ed4 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Tue, 10 Dec 2024 16:52:05 +0100
+Subject: [PATCH] [CVE-2024-56171] Fix use-after-free after
+ xmlSchemaItemListAdd
+
+xmlSchemaItemListAdd can reallocate the items array. Update local
+variables after adding item in
+
+- xmlSchemaIDCFillNodeTables
+- xmlSchemaBubbleIDCNodeTables
+
+Fixes #828.
+---
+ xmlschemas.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/xmlschemas.c b/xmlschemas.c
+index d276faf10..28b14bd44 100644
+--- a/xmlschemas.c
++++ b/xmlschemas.c
+@@ -23388,6 +23388,7 @@ xmlSchemaIDCFillNodeTables(xmlSchemaValidCtxtPtr vctxt,
+ 			}
+ 			if (xmlSchemaItemListAdd(bind->dupls, bind->nodeTable[j]) == -1)
+ 			    goto internal_error;
++                        dupls = (xmlSchemaPSVIIDCNodePtr *) bind->dupls->items;
+ 			/*
+ 			* Remove the duplicate entry from the IDC node-table.
+ 			*/
+@@ -23604,6 +23605,8 @@ xmlSchemaBubbleIDCNodeTables(xmlSchemaValidCtxtPtr vctxt)
+ 				goto internal_error;
+ 			}
+ 			xmlSchemaItemListAdd(parBind->dupls, parNode);
++		        dupls = (xmlSchemaPSVIIDCNodePtr *)
++                            parBind->dupls->items;
+ 		    } else {
+ 			/*
+ 			* Add the node-table entry (node and key-sequence) of
+-- 
+GitLab
+

backport-CVE-2025-24928.patch

@@ -0,0 +1,57 @@
+From 858ca26c0689161a6b903a6682cc8a1cc10a0ea8 Mon Sep 17 00:00:00 2001
+From: Nick Wellnhofer <wellnhofer@aevum.de>
+Date: Tue, 11 Feb 2025 17:30:40 +0100
+Subject: [PATCH] [CVE-2025-24928] Fix stack-buffer-overflow in
+ xmlSnprintfElements
+
+Fixes #847.
+---
+ valid.c | 25 +++++++++++++------------
+ 1 file changed, 13 insertions(+), 12 deletions(-)
+
+diff --git a/valid.c b/valid.c
+index 76d657d62..abefdc50a 100644
+--- a/valid.c
++++ b/valid.c
+@@ -5057,25 +5057,26 @@ xmlSnprintfElements(char *buf, int size, xmlNodePtr node, int glob) {
+ 	    return;
+ 	}
+         switch (cur->type) {
+-            case XML_ELEMENT_NODE:
++            case XML_ELEMENT_NODE: {
++                int qnameLen = xmlStrlen(cur->name);
++
++                if ((cur->ns != NULL) && (cur->ns->prefix != NULL))
++                    qnameLen += xmlStrlen(cur->ns->prefix) + 1;
++                if (size - len < qnameLen + 10) {
++                    if ((size - len > 4) && (buf[len - 1] != '.'))
++                        strcat(buf, " ...");
++                    return;
++                }
+ 		if ((cur->ns != NULL) && (cur->ns->prefix != NULL)) {
+-		    if (size - len < xmlStrlen(cur->ns->prefix) + 10) {
+-			if ((size - len > 4) && (buf[len - 1] != '.'))
+-			    strcat(buf, " ...");
+-			return;
+-		    }
+ 		    strcat(buf, (char *) cur->ns->prefix);
+ 		    strcat(buf, ":");
+ 		}
+-                if (size - len < xmlStrlen(cur->name) + 10) {
+-		    if ((size - len > 4) && (buf[len - 1] != '.'))
+-			strcat(buf, " ...");
+-		    return;
+-		}
+-	        strcat(buf, (char *) cur->name);
++                if (cur->name != NULL)
++	            strcat(buf, (char *) cur->name);
+ 		if (cur->next != NULL)
+ 		    strcat(buf, " ");
+ 		break;
++            }
+             case XML_TEXT_NODE:
+ 		if (xmlIsBlankNode(cur))
+ 		    break;
+-- 
+GitLab
+

backport-CVE-2025-27113.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.
+---
+ pattern.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/pattern.c b/pattern.c
+index 55ae2d3e5..b0f7f1601 100644
+--- a/pattern.c
++++ b/pattern.c
+@@ -1164,10 +1164,10 @@ 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)
+-- 
+GitLab
+

libxml2.spec

@@ -1,7 +1,7 @@
 Summary: Library providing XML and HTML support
 Name: libxml2
 Version: 2.11.9
-Release: 1
+Release: 2
 License: MIT
 Group: Development/Libraries
 Source: https://download.gnome.org/sources/%{name}/2.11/%{name}-%{version}.tar.xz
@@ -10,6 +10,9 @@ Patch0: libxml2-multilib.patch
 Patch1: backport-CVE-2023-45322.patch
 Patch2: backport-xpath-Remove-remaining-references-to-valueFrame.patch
 Patch3: backport-examples-Don-t-call-xmlCleanupParser-and-xmlMemoryDu.patch
+Patch4: backport-CVE-2024-56171.patch
+Patch5: backport-CVE-2025-24928.patch
+Patch6: backport-CVE-2025-27113.patch
 
 BuildRequires: python3-devel
 BuildRequires: zlib-devel
@@ -147,6 +150,9 @@ gzip -9 -c doc/libxml2-api.xml > doc/libxml2-api.xml.gz
 
 
 %changelog
+* Wed Feb 19 2025 Funda Wang <fundawang@yeah.net> - 2.11.9-2
+- fix CVE-2024-56171, CVE-2025-24928, CVE-2025-27113
+
 * Tue Jul 30 2024 Funda Wang <fundawang@yeah.net> - 2.11.9-1
 - update to 2.11.9