From patchwork Fri Jul 31 05:56:18 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Deepak Rathore -X (deeratho - E INFOCHIPS PRIVATE LIMITED at Cisco)" X-Patchwork-Id: 93977 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id EB1DEC5516D for ; Fri, 31 Jul 2026 05:56:52 +0000 (UTC) Received: from rcdn-iport-3.cisco.com (rcdn-iport-3.cisco.com [173.37.86.74]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.658.1785477412448004825 for ; Thu, 30 Jul 2026 22:56:52 -0700 Authentication-Results: mx.groups.io; dkim=fail reason="dkim: message contains an insecure body length tag" header.i=@cisco.com header.s=iport01 header.b=IpVXRUCO; spf=pass (domain: cisco.com, ip: 173.37.86.74, mailfrom: deeratho@cisco.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.com; i=@cisco.com; l=3198; q=dns/txt; s=iport01; t=1785477412; x=1786687012; h=from:to:subject:date:message-id:in-reply-to:references: mime-version:content-transfer-encoding; bh=F5dmywGRALgiYZ4xuWt10MMX82RJGMslFlvvsrrb8Eg=; b=IpVXRUCOqmuHRRPNdX9cJ3seTtGYWog9LoQLjx/0IJChwWgImEWcI8Yr 8/bq9PGIBNJJzelTsl6SP6WtfbN+GEutdxS3Yco+5ok6KO0l2NQp5qvZF rsDSQMIxDVHwBGF6BMQ4nrIHewL+ICgWTWiopwfEECiLidpFyZGq0S7Oo 1eYNGFCclVD8dkNMKKqWA3vPhbqZKqOzuGTyl3ieMwF1zVuH2TE94St4L RfPxvI6ABM73VnKR1FxYVCzDMCyc4WMwTR+6wc/M0wHHHuM4drMB6aJGH NAjskaVUyL5XJwnE87vwRLypxzEt/kyjWLWMIryeZnZ2bnYGN0apUCkMp A==; X-CSE-ConnectionGUID: ne8GYcVuRLWxrvOstid/2g== X-CSE-MsgGUID: bynz+NCJSXmipRUDHC9S4g== X-IPAS-Result: A0BJAgBvN2xq/5X/Ja1aHgEBCxIMggULgld0X0JJlCmCIQOLZJI3gX4PAQEBD0QNBAEBhD9GAo1mAiY0CQ4BAgQDAgMBAQEBAQEBAQEBAQsBAQUBAQECAQcFgQ4Thk8NhloBAgEDJwsBGAE9HAMBAi8gCyMIEQiDAgGCOgM3AxG6Oho3gXkzgQGDKAE/AkNQ2EkNglgBCxQBgTiFP4J9hSNcGAGEfCcbG4FyhH6BBYEaQgEBgSeGfgSCIoEMgVoehCuMEkiBHgNZLAFVEw0KCwcFgWYDNRIqFW4yHYEjPheBDRsHBYEdgSsvhFMjGTZ8gS91SnUtahIXgRqDMQKCXwMLGA1IESw3FBkEPm4HjWkggj4BPVEBK4FDEaZLoCFxCiiDdYwhjz6FfBozqmwLmH2OCoQJkkeEaYFoPIEoHwsHcBWCbgEzCUoZD444g2uBf8xDPDUCCTIBAQcCBw4DC4FokACBfgEB IronPort-Data: A9a23:a+0Zka3QSbrm0i9dlfbD5YJwkn2cJEfYwER7XKvMYLTBsI5bpzYCy 2pNWWHVOqmLNmf0Kdwla4Sw8U5QsJKAn4NhSVds3Hw8FHgiRegpqji6wuYcGwvIc6UvmWo+t 512huHodZ5yFjmH4E/xbtANlFEkvYmQXL3wFeXYDS54QA5gWU8JhAlq8wIDqtYAbeORXUXX5 Lsen+WFYAX7g2EvajpOg06+gEoHUMra6WtwUmMWPZinjHeG/1EJAZQWI72GLneQauF8Au6gS u/f+6qy92Xf8g1FIovNfmHTKxBirhb6ZGBiu1IOM0SQqkEqSh8ajs7XAMEhhXJ/0F1lqTzeJ OJl7vRcQS9xVkHFdX90vxNwS0mSNoUekFPLzOTWXcG7lyX7n3XQL/pGCkxmErwTxPtNJV5e7 +I/MywMYlfZiLfjqF67YrEEasULNsLnOsYb/3pn1zycVKxgSpHYSKKM7thdtNsyrpkRRrCFO IxDNGcpNUiRC/FMEg9/5JYWkOqlnHDjczpwo1OOrq1x6G/WpOB0+OW0b4KEIYHaGK25mG6St 2TUvELSICoqMd2H8wep0ln9vbPAyHaTtIU6UefQGuRRqFqLy2oeDRcbWVe2rbyyjVSzc9ZeM FAPvC02oK4/8UamQtXwU1u/unHsg/IHc8BbH+t/7ESGzbDZpl/DQGMFVTVGLtchsafaWAAX6 7NApPuxbRQHjVFfYSv1Gmu8xd9qBRUoEA== IronPort-HdrOrdr: A9a23:fAj8XaGrls3jPvr2pLqExMeALOsnbusQ8zAXPidKOHhom6Oj+f xG8M536fawskdzZJhCo6HkBED/exLhHPdOiOF7V4tKHjOW2ldAR7sM0WKN+VHd8lXFltJ15O NHb7V0DsH2ABxRiMb35xT9LvMbqeP3l5xBQYzlvg5QpcYAUdAH0ztE X-Talos-CUID: 9a23:tfikq2OL7wRQa+5DXiQ3238fJN0fVkLN1mn3OFO5BSEzR+jA X-Talos-MUID: 9a23:6/amsA81jOEraukgqgJi/BmQf8155bbtLmsvqqUDutG+CABQEGam0DviFw== X-IronPort-Anti-Spam-Filtered: true X-IronPort-AV: E=Sophos;i="6.25,195,1779148800"; d="scan'208";a="517093585" Received: from rcdn-l-core-12.cisco.com ([173.37.255.149]) by rcdn-iport-3.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 31 Jul 2026 05:56:51 +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-12.cisco.com (Postfix) with ESMTPS id 524C7180001C6 for ; Fri, 31 Jul 2026 05:56:51 +0000 (GMT) Received: by bgl-ads-3413.cisco.com (Postfix, from userid 1795984) id 6B88ACC037D; Fri, 31 Jul 2026 11:26:49 +0530 (IST) From: "Deepak Rathore -X (deeratho - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Subject: [OE-core][scarthgap][PATCH v2 03/10] expat: fix CVE-2026-56404 Date: Fri, 31 Jul 2026 11:26:18 +0530 Message-Id: <20260731055625.4187716-4-deeratho@cisco.com> X-Mailer: git-send-email 2.35.6 In-Reply-To: <20260731055625.4187716-1-deeratho@cisco.com> References: <20260717060437.2910653-1-deeratho@cisco.com> <20260731055625.4187716-1-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-12.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, 31 Jul 2026 05:56:52 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/242400 From: Deepak Rathore This patch applies the upstream fix shown in [1] as referenced by [2]. [1] https://github.com/libexpat/libexpat/commit/babfc48090977cbf7be24b2c48f6053dca75c164 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-56404 Signed-off-by: Deepak Rathore --- Changes in v2: - Rebased the recipe SRC_URI context on current Scarthgap after upstream added Expat CVE-2026-41080-* and CVE-2026-45186-* patch entries. - No change to the embedded upstream source patch. .../expat/expat/CVE-2026-56404.patch | 45 +++++++++++++++++++ meta/recipes-core/expat/expat_2.6.4.bb | 1 + 2 files changed, 46 insertions(+) create mode 100644 meta/recipes-core/expat/expat/CVE-2026-56404.patch diff --git a/meta/recipes-core/expat/expat/CVE-2026-56404.patch b/meta/recipes-core/expat/expat/CVE-2026-56404.patch new file mode 100644 index 0000000000..bd5f99742b --- /dev/null +++ b/meta/recipes-core/expat/expat/CVE-2026-56404.patch @@ -0,0 +1,45 @@ +From d8e09a54fa9214e64d8e73057ca6918d08857022 Mon Sep 17 00:00:00 2001 +From: netliomax25-code +Date: Thu, 28 May 2026 12:44:11 +0530 +Subject: [PATCH 04/17] lib: protect function addBinding from signed integer + overflow + +CVE: CVE-2026-56404 +Upstream-Status: Backport [https://github.com/libexpat/libexpat/commit/babfc48090977cbf7be24b2c48f6053dca75c164] + +(cherry picked from commit babfc48090977cbf7be24b2c48f6053dca75c164) +Signed-off-by: Deepak Rathore +--- + expat/lib/xmlparse.c | 11 ++++++++++- + 1 file changed, 10 insertions(+), 1 deletion(-) + +diff --git a/expat/lib/xmlparse.c b/expat/lib/xmlparse.c +index 12bbe23e..9d21e136 100644 +--- a/expat/lib/xmlparse.c ++++ b/expat/lib/xmlparse.c +@@ -4456,6 +4456,10 @@ addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId, + } + + for (len = 0; uri[len]; len++) { ++ /* Detect and prevent signed integer overflow */ ++ if (len == INT_MAX) { ++ return XML_ERROR_NO_MEMORY; ++ } + if (isXML && (len > xmlLen || uri[len] != xmlNamespace[len])) + isXML = XML_FALSE; + +@@ -4496,8 +4500,13 @@ addBinding(XML_Parser parser, PREFIX *prefix, const ATTRIBUTE_ID *attId, + if (isXMLNS) + return XML_ERROR_RESERVED_NAMESPACE_URI; + +- if (parser->m_namespaceSeparator) ++ if (parser->m_namespaceSeparator) { ++ /* Detect and prevent signed integer overflow */ ++ if (len == INT_MAX) { ++ return XML_ERROR_NO_MEMORY; ++ } + len++; ++ } + if (parser->m_freeBindingList) { + b = parser->m_freeBindingList; + if (len > b->uriAlloc) { diff --git a/meta/recipes-core/expat/expat_2.6.4.bb b/meta/recipes-core/expat/expat_2.6.4.bb index 7fe8174909..5e3aef3b7e 100644 --- a/meta/recipes-core/expat/expat_2.6.4.bb +++ b/meta/recipes-core/expat/expat_2.6.4.bb @@ -64,6 +64,7 @@ SRC_URI = "${GITHUB_BASE_URI}/download/R_${VERSION_TAG}/expat-${PV}.tar.bz2 \ file://CVE-2026-56403_p1.patch;striplevel=2 \ file://CVE-2026-56403_p2.patch;striplevel=2 \ file://CVE-2026-56408.patch;striplevel=2 \ + file://CVE-2026-56404.patch;striplevel=2 \ " GITHUB_BASE_URI = "https://github.com/libexpat/libexpat/releases/"