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d="scan'208";a="502924798" Received: from rcdn-l-core-09.cisco.com ([173.37.255.146]) by rcdn-iport-8.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 17 Jul 2026 06:05:26 +0000 Received: from bgl-ads-3413.cisco.com (bgl-ads-3413.cisco.com [173.39.60.50]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "ciscoit-managed-infra-smtp-auth.cisco.com", Issuer "Internal Private TLS SubCA" (verified OK)) by rcdn-l-core-09.cisco.com (Postfix) with ESMTPS id B17B118000203 for ; Fri, 17 Jul 2026 06:05:25 +0000 (GMT) Received: by bgl-ads-3413.cisco.com (Postfix, from userid 1795984) id D3789CC037D; Fri, 17 Jul 2026 11:35:23 +0530 (IST) From: "Deepak Rathore -X (deeratho - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Subject: [OE-core][scarthgap][PATCH 04/10] expat: fix CVE-2026-56405 Date: Fri, 17 Jul 2026 11:34:31 +0530 Message-Id: <20260717060437.2910653-5-deeratho@cisco.com> X-Mailer: git-send-email 2.35.6 In-Reply-To: <20260717060437.2910653-1-deeratho@cisco.com> References: <20260717060437.2910653-1-deeratho@cisco.com> MIME-Version: 1.0 X-Outbound-Client-TLS: VERIFIED;bgl-ads-3413.cisco.com [173.39.60.50];TLSv1.3;TLS_AES_256_GCM_SHA384;256;ciscoit-managed-infra-smtp-auth.cisco.com X-Outbound-SMTP-Client: 173.39.60.50, bgl-ads-3413.cisco.com X-Outbound-Node: rcdn-l-core-09.cisco.com List-Id: X-Webhook-Received: from 45-33-107-173.ip.linodeusercontent.com [45.33.107.173] by aws-us-west-2-korg-lkml-1.web.codeaurora.org with HTTPS for ; Fri, 17 Jul 2026 06:05:37 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/241143 From: Deepak Rathore This patch applies the upstream fix shown in [1] as referenced by [2]. [1] https://github.com/libexpat/libexpat/commit/2c6c42d33689f6b266a5267b639e03cde17e53c0 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-56405 Signed-off-by: Deepak Rathore --- .../expat/expat/CVE-2026-56405.patch | 30 +++++++++++++++++++ meta/recipes-core/expat/expat_2.6.4.bb | 1 + 2 files changed, 31 insertions(+) create mode 100644 meta/recipes-core/expat/expat/CVE-2026-56405.patch diff --git a/meta/recipes-core/expat/expat/CVE-2026-56405.patch b/meta/recipes-core/expat/expat/CVE-2026-56405.patch new file mode 100644 index 0000000000..3df0cedfb8 --- /dev/null +++ b/meta/recipes-core/expat/expat/CVE-2026-56405.patch @@ -0,0 +1,30 @@ +From 49ba5bdafa7aaee9b77a32ffaa798e625bd46e73 Mon Sep 17 00:00:00 2001 +From: netliomax25-code +Date: Fri, 29 May 2026 11:45:17 +0530 +Subject: [PATCH 05/17] lib: Protect function getAttributeId from signed + integer overflow + +CVE: CVE-2026-56405 +Upstream-Status: Backport [https://github.com/libexpat/libexpat/commit/2c6c42d33689f6b266a5267b639e03cde17e53c0] + +(cherry picked from commit 2c6c42d33689f6b266a5267b639e03cde17e53c0) +Signed-off-by: Deepak Rathore +--- + expat/lib/xmlparse.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c +index 9d21e136..80ad0811 100644 +--- a/expat/lib/xmlparse.c ++++ b/expat/lib/xmlparse.c +@@ -7312,6 +7312,10 @@ getAttributeId(XML_Parser parser, const ENCODING *enc, const char *start, + } else { + int i; + for (i = 0; name[i]; i++) { ++ /* Detect and prevent signed integer overflow */ ++ if (i == INT_MAX) { ++ return NULL; ++ } + /* attributes without prefix are *not* in the default namespace */ + if (name[i] == XML_T(ASCII_COLON)) { + int j; diff --git a/meta/recipes-core/expat/expat_2.6.4.bb b/meta/recipes-core/expat/expat_2.6.4.bb index 815b31fc10..615d404d56 100644 --- a/meta/recipes-core/expat/expat_2.6.4.bb +++ b/meta/recipes-core/expat/expat_2.6.4.bb @@ -55,6 +55,7 @@ SRC_URI = "${GITHUB_BASE_URI}/download/R_${VERSION_TAG}/expat-${PV}.tar.bz2 \ file://CVE-2026-56403_p2.patch;striplevel=2 \ file://CVE-2026-56408.patch;striplevel=2 \ file://CVE-2026-56404.patch;striplevel=2 \ + file://CVE-2026-56405.patch;striplevel=2 \ " GITHUB_BASE_URI = "https://github.com/libexpat/libexpat/releases/"