From: Mingli Yu <[email protected]> Backport a patch [1] to fix CVE-2026-0990.
[1] https://gitlab.gnome.org/GNOME/libxml2/-/commit/1961208e958ca22f80a0b4e4c9d71cfa050aa982 Signed-off-by: Mingli Yu <[email protected]> --- .../libxml/libxml2/CVE-2026-0990.patch | 81 +++++++++++++++++++ meta/recipes-core/libxml/libxml2_2.15.1.bb | 1 + 2 files changed, 82 insertions(+) create mode 100644 meta/recipes-core/libxml/libxml2/CVE-2026-0990.patch diff --git a/meta/recipes-core/libxml/libxml2/CVE-2026-0990.patch b/meta/recipes-core/libxml/libxml2/CVE-2026-0990.patch new file mode 100644 index 0000000000..6b2b8799f5 --- /dev/null +++ b/meta/recipes-core/libxml/libxml2/CVE-2026-0990.patch @@ -0,0 +1,81 @@ +From 1961208e958ca22f80a0b4e4c9d71cfa050aa982 Mon Sep 17 00:00:00 2001 +From: Daniel Garcia Moreno <[email protected]> +Date: Wed, 17 Dec 2025 15:24:08 +0100 +Subject: [PATCH] catalog: prevent inf recursion in xmlCatalogXMLResolveURI + +Fix https://gitlab.gnome.org/GNOME/libxml2/-/issues/1018 + +CVE: CVE-2026-0990 + +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/1961208e958ca22f80a0b4e4c9d71cfa050aa982] + +Signed-off-by: Mingli Yu <[email protected]> +--- + catalog.c | 31 +++++++++++++++++++++++-------- + 1 file changed, 23 insertions(+), 8 deletions(-) + +diff --git a/catalog.c b/catalog.c +index 76c063a8..46b877e6 100644 +--- a/catalog.c ++++ b/catalog.c +@@ -2025,12 +2025,21 @@ static xmlChar * + xmlCatalogListXMLResolveURI(xmlCatalogEntryPtr catal, const xmlChar *URI) { + xmlChar *ret = NULL; + xmlChar *urnID = NULL; ++ xmlCatalogEntryPtr cur = NULL; + + if (catal == NULL) + return(NULL); + if (URI == NULL) + return(NULL); + ++ if (catal->depth > MAX_CATAL_DEPTH) { ++ xmlCatalogErr(catal, NULL, XML_CATALOG_RECURSION, ++ "Detected recursion in catalog %s\n", ++ catal->name, NULL, NULL); ++ return(NULL); ++ } ++ catal->depth++; ++ + if (!xmlStrncmp(URI, BAD_CAST XML_URN_PUBID, sizeof(XML_URN_PUBID) - 1)) { + urnID = xmlCatalogUnWrapURN(URI); + if (xmlDebugCatalogs) { +@@ -2044,21 +2053,27 @@ xmlCatalogListXMLResolveURI(xmlCatalogEntryPtr catal, const xmlChar *URI) { + ret = xmlCatalogListXMLResolve(catal, urnID, NULL); + if (urnID != NULL) + xmlFree(urnID); ++ catal->depth--; + return(ret); + } +- while (catal != NULL) { +- if (catal->type == XML_CATA_CATALOG) { +- if (catal->children == NULL) { +- xmlFetchXMLCatalogFile(catal); ++ cur = catal; ++ while (cur != NULL) { ++ if (cur->type == XML_CATA_CATALOG) { ++ if (cur->children == NULL) { ++ xmlFetchXMLCatalogFile(cur); + } +- if (catal->children != NULL) { +- ret = xmlCatalogXMLResolveURI(catal->children, URI); +- if (ret != NULL) ++ if (cur->children != NULL) { ++ ret = xmlCatalogXMLResolveURI(cur->children, URI); ++ if (ret != NULL) { ++ catal->depth--; + return(ret); ++ } + } + } +- catal = catal->next; ++ cur = cur->next; + } ++ ++ catal->depth--; + return(ret); + } + +-- +2.34.1 + diff --git a/meta/recipes-core/libxml/libxml2_2.15.1.bb b/meta/recipes-core/libxml/libxml2_2.15.1.bb index 736aaea00e..c603fb7980 100644 --- a/meta/recipes-core/libxml/libxml2_2.15.1.bb +++ b/meta/recipes-core/libxml/libxml2_2.15.1.bb @@ -15,6 +15,7 @@ GNOMEBASEBUILDCLASS = "autotools" inherit gnomebase SRC_URI += "http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=${BP};name=testtar \ + file://CVE-2026-0990.patch \ file://run-ptest \ file://install-tests.patch \ file://0001-Revert-cmake-Fix-installation-directories-in-libxml2.patch \ -- 2.34.1
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