From: Peter Marko <[email protected]> Pick patch which closed [1]. Adapt for missing xmlCatalogPrintDebug per [2].
[1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 [2] https://gitlab.gnome.org/GNOME/libxml2/-/commit/728869809eb7eee1b1681d558b4b506a8019c151 Signed-off-by: Peter Marko <[email protected]> --- .../libxml/libxml2/CVE-2026-0992.patch | 49 +++++++++++++++++++ meta/recipes-core/libxml/libxml2_2.12.10.bb | 1 + 2 files changed, 50 insertions(+) create mode 100644 meta/recipes-core/libxml/libxml2/CVE-2026-0992.patch diff --git a/meta/recipes-core/libxml/libxml2/CVE-2026-0992.patch b/meta/recipes-core/libxml/libxml2/CVE-2026-0992.patch new file mode 100644 index 00000000000..b335dafb634 --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/CVE-2026-0992.patch @@ -0,0 +1,49 @@ +From f75abfcaa419a740a3191e56c60400f3ff18988d Mon Sep 17 00:00:00 2001 +From: Daniel Garcia Moreno <[email protected]> +Date: Fri, 19 Dec 2025 11:02:18 +0100 +Subject: [PATCH] catalog: Ignore repeated nextCatalog entries + +This patch makes the catalog parsing to ignore repeated entries of +nextCatalog with the same value. + +Fix https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 + +CVE: CVE-2026-0989 +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/f75abfcaa419a740a3191e56c60400f3ff18988d] +Signed-off-by: Peter Marko <[email protected]> +--- + catalog.c | 18 ++++++++++++++++++ + 1 file changed, 18 insertions(+) + +diff --git a/catalog.c b/catalog.c +index 46b877e6..fa6d77ca 100644 +--- a/catalog.c ++++ b/catalog.c +@@ -1266,9 +1266,27 @@ xmlParseXMLCatalogNode(xmlNodePtr cur, xmlCatalogPrefer prefer, + BAD_CAST "delegateURI", BAD_CAST "uriStartString", + BAD_CAST "catalog", prefer, cgroup); + } else if (xmlStrEqual(cur->name, BAD_CAST "nextCatalog")) { ++ xmlCatalogEntryPtr prev = parent->children; ++ + entry = xmlParseXMLCatalogOneNode(cur, XML_CATA_NEXT_CATALOG, + BAD_CAST "nextCatalog", NULL, + BAD_CAST "catalog", prefer, cgroup); ++ /* Avoid duplication of nextCatalog */ ++ while (prev != NULL) { ++ if ((prev->type == XML_CATA_NEXT_CATALOG) && ++ (xmlStrEqual (prev->URL, entry->URL)) && ++ (xmlStrEqual (prev->value, entry->value)) && ++ (prev->prefer == entry->prefer) && ++ (prev->group == entry->group)) { ++ if (xmlDebugCatalogs) ++ fprintf(stderr, ++ "Ignoring repeated nextCatalog %s\n", entry->URL); ++ xmlFreeCatalogEntry(entry, NULL); ++ entry = NULL; ++ break; ++ } ++ prev = prev->next; ++ } + } + if (entry != NULL) { + if (parent != NULL) { diff --git a/meta/recipes-core/libxml/libxml2_2.12.10.bb b/meta/recipes-core/libxml/libxml2_2.12.10.bb index 6a03fc3f6c7..fa081c2382f 100644 --- a/meta/recipes-core/libxml/libxml2_2.12.10.bb +++ b/meta/recipes-core/libxml/libxml2_2.12.10.bb @@ -27,6 +27,7 @@ SRC_URI += "http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=${BP};name=testt file://CVE-2025-7425.patch \ file://CVE-2026-0989.patch \ file://CVE-2026-0990.patch \ + file://CVE-2026-0992.patch \ " SRC_URI[archive.sha256sum] = "c3d8c0c34aa39098f66576fe51969db12a5100b956233dc56506f7a8679be995"
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