Thanks for finding that issue. I’ll add pick additional commit during next days.
Since on master this was already merged, should I keep it as two commits also for stable branches? Peter From: Yoann Congal <[email protected]> Sent: Thursday, January 29, 2026 10:39 To: Marko, Peter (FT D EU SK BFS1) <[email protected]> Cc: [email protected] Subject: Re: [OE-core][whinlatter][PATCH 3/3] libxml2: patch CVE-2026-0992 Le dim. 25 janv. 2026 à 19:41, Peter Marko via lists.openembedded.org<http://lists.openembedded.org> <[email protected]<mailto:[email protected]>> a écrit : From: Peter Marko <[email protected]<mailto:[email protected]>> Pick patch which closed [1]. [1] https://gitlab.gnome.org/GNOME/libxml2/-/issues/1019 Hello, Did you see Fix for CVE-2026-0992 is incomplete (#1040) · Issue · GNOME/libxml2 https://gitlab.gnome.org/GNOME/libxml2/-/issues/1040 ... and the fixing commit: catalog: Do not check value for duplication nextCatalog (deed3b78) · Commits · GNOME / libxml2 · GitLab https://gitlab.gnome.org/GNOME/libxml2/-/commit/deed3b7873dff30b7f87f7f33154c9932a772522 ? Signed-off-by: Peter Marko <[email protected]<mailto:[email protected]>> --- .../libxml/libxml2/CVE-2026-0992.patch | 49 +++++++++++++++++++ meta/recipes-core/libxml/libxml2_2.14.6.bb<http://libxml2_2.14.6.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 0000000000..ad23498a4c --- /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]<mailto:[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-2026-0992 +Upstream-Status: Backport [https://gitlab.gnome.org/GNOME/libxml2/-/commit/f75abfcaa419a740a3191e56c60400f3ff18988d] +Signed-off-by: Peter Marko <[email protected]<mailto:[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 +@@ -1227,9 +1227,27 @@ 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) ++ xmlCatalogPrintDebug( ++ "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_2.14.6.bb<http://libxml2_2.14.6.bb> b/meta/recipes-core/libxml/libxml2_2.14.6.bb<http://libxml2_2.14.6.bb> index 7b47f823f9..b881a89a5f 100644 --- a/meta/recipes-core/libxml/libxml2_2.14.6.bb<http://libxml2_2.14.6.bb> +++ b/meta/recipes-core/libxml/libxml2_2.14.6.bb<http://libxml2_2.14.6.bb> @@ -21,6 +21,7 @@ SRC_URI += "http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=${BP};name=testt<http://www.w3.org/XML/Test/xmlts20130923.tar;subdir=$%7BBP%7D;name=testt> file://CVE-2025-6021.patch \ file://CVE-2026-0989.patch \ file://CVE-2026-0990.patch \ + file://CVE-2026-0992.patch \ " SRC_URI[archive.sha256sum] = "7ce458a0affeb83f0b55f1f4f9e0e55735dbfc1a9de124ee86fb4a66b597203a" -- Yoann Congal Smile ECS
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