From patchwork Fri Jul 10 13:08:37 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: 92181 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 1994FC43458 for ; Fri, 10 Jul 2026 13:08:50 +0000 (UTC) Received: from rcdn-iport-4.cisco.com (rcdn-iport-4.cisco.com [173.37.86.75]) by mx.groups.io with SMTP id smtpd.msgproc01-g2.12273.1783688925296239023 for ; Fri, 10 Jul 2026 06:08:45 -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=kETpNx4v; spf=pass (domain: cisco.com, ip: 173.37.86.75, mailfrom: deeratho@cisco.com) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cisco.com; i=@cisco.com; l=2768; q=dns/txt; s=iport01; t=1783688925; x=1784898525; h=from:to:subject:date:message-id:mime-version: content-transfer-encoding; bh=f2BocryYHJH5e6jIn00jU3SJmuBsL4QB6XOvDC8blwg=; b=kETpNx4voa6ZrXocaxMLHA/Mur7yyO5JTgpai//ZxdLo+V4qTwHZX+Ns kd8P1Ky9nUKSpaPI9hzoFGJILNTPwUAfVFsIcjVjPUqFC/iwAPh4y15Fc TPkRs3A6qQFK4Fu80RCxJh1B95jSuUtK6cGOAVXpe9xlZirWst/Ko38wA A5m37KW8SwMyLXqva456G9sIM8s9gsvbSQx8G/c8/IsmgMZx1HpOBJy9C 1+QYbg4YIzzgoSIyKye3DwJk1Iid39rK4wRMgshyO5FJTfddoV+q9lwKT hrKQs9XXwYXYu1Z2C+yBmoKNI5B98cGpnRXD0ADq4BNFnXC034lbhIXH1 Q==; X-CSE-ConnectionGUID: IwBN4XVOQdm5mBSQbh1RJQ== X-CSE-MsgGUID: K3z9YcCrRpmbq8nggzGH3w== X-IPAS-Result: A0BFAgA+7VBq/4v/Ja1aglmCV3RfQkmUKYIhi2eSN4F+DwEBAQ9EDQQBAYQ/jhUCJjQJDgECBAMCAwEBAQEBAQEBAQEBCwEBBQEBAQIBBwWBDhOGTw2GWgEtCwEYAVkDAQJPCyMhgwIBgjoDNgIBEblNGjeBeTOBAYMoAT8CQ1DYSQ2CWAELFAGBOIU/gnyFI1sYAYR8JxsbgXKEfoEFgRpCAQGBJ4EGhXgEgiKBDIFaHoUHimtIgR4DWSwBVRMNCgsHBYFmAzUSKhVuMh2BIz4XgQwbBwWBHYFZgQKEeSMfAzl/gTB1SnktcxIeCoFSghZUAwsYDUgRLDcUGwQ+bgeNPhcPgj6BDiyBQxGmTqAecQoog3WMIY8+hXwaM6psC5h9jgqECZJHhGmBaDyBKB8LB3AVgm4BMwlKGQ+OOINrgX/MWyQ1AgkyAQEHAgcOAwuBaJAAgX4BAQ IronPort-Data: A9a23:O/tQm6wysij5CWv9WgZ6t+dmxyrEfRIJ4+MujC+fZmUNrF6WrkUDz mZLDWrQPv7eYjGmKdt2YIXnoE0P75WEyIMyGgZt/FhgHilAwSbn6Xt1DatR0we6dJCroJdPt p1GAjX4BJlqCCea/VH1buSJQUBUjcmgXqD7BPPPJhd/TAplTDZJoR94kobVuKYw6TSCK13L4 46aT/H3Ygf/hWYrajJMsspvlTs21BjMkGJA1rABTagjUG/2zxE9EJ8ZLKetGHr0KqE8NvK6X evK0Iai9Wrf+Ro3Yvv9+losWhRXKlJ6FVHmZkt+A8BOsDAbzsAB+vpT2M4nVKtio27hc+adZ zl6ncfYpQ8BZsUgkQmGOvVSO3kW0aZuoNcrLZUj2CCe5xWuTpfi/xlhJGApF6tEythQOG1Lq PkyEwkHbkm5pdvjldpXSsE07igiBNPgMIVavjRryivUSK58B5vCWK7No9Rf2V/chOgXQq2YP JVfM2cyKk2bMnWjOX9PYH46tOuli2P2bz1fgFmUvqEwpWPUyWSd1ZCwaIWFI4fQHZo9ckCwh TnUrlXyKQsgLNmV0GqD/X2+qc+UgnauMG4VPPjinhJwu3WU3mEVBRgcWFe3rPX8gUmkVvpbK lcI4WwptaU0+UmhQ9XxUhH+p2SL1iPwQPJKGOE8rQXIwa3O7kPBXC4PTyVKb5ots8peqSEW6 2JlVujBXVRH2IB5g1rHnltIhVte4RQoEFI= IronPort-HdrOrdr: A9a23:lrOFsqoww5GNXkp6rJa46zAaV5obeYIsimQD101hICG9Ffbo9f xG88506faZslsssRIb6LO90cu7IE80nKQdieJ6AV7IZmbbUQWTQL2KlbGD/xTQXwvj6+Vaya BsN4J6CNH2EBxGqPyS2njcLz7lq+P3l5xBQozlvhNQcT0= X-Talos-CUID: 9a23:rkNsEmkRFk/ohYMKPKvssPU5izjXOVzC5lGME3GfMGpsFbi/cmaa+PpesfM7zg== X-Talos-MUID: 9a23:+9Xclgqv9Et9+sL5KjwezxI5JpZZ6I+0MlgIm4xWvcaLJwNQYCjI2Q== X-IronPort-Anti-Spam-Filtered: true X-IronPort-AV: E=Sophos;i="6.25,154,1779148800"; d="scan'208";a="507813207" Received: from rcdn-l-core-02.cisco.com ([173.37.255.139]) by rcdn-iport-4.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 10 Jul 2026 13:08:44 +0000 Received: from sjc-ads-3552.cisco.com (sjc-ads-3552.cisco.com [171.68.249.250]) (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-02.cisco.com (Postfix) with ESMTPS id 4670A18000206 for ; Fri, 10 Jul 2026 13:08:44 +0000 (GMT) Received: by sjc-ads-3552.cisco.com (Postfix, from userid 1795984) id E8B3FCC2EC3; Fri, 10 Jul 2026 06:08:43 -0700 (PDT) From: "Deepak Rathore -X (deeratho - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Subject: [OE-core][wrynose][PATCH 03/10] expat: fix CVE-2026-56404 Date: Fri, 10 Jul 2026 06:08:37 -0700 Message-ID: <20260710130837.2820614-1-deeratho@cisco.com> X-Mailer: git-send-email 2.53.0 MIME-Version: 1.0 X-Outbound-Client-TLS: VERIFIED;sjc-ads-3552.cisco.com [171.68.249.250];TLSv1.3;TLS_AES_256_GCM_SHA384;256;ciscoit-managed-infra-smtp-auth.cisco.com X-Outbound-SMTP-Client: 171.68.249.250, sjc-ads-3552.cisco.com X-Outbound-Node: rcdn-l-core-02.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, 10 Jul 2026 13:08:50 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/240643 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 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..8c72838f68 --- /dev/null +++ b/meta/recipes-core/expat/expat/CVE-2026-56404.patch @@ -0,0 +1,46 @@ +From 8cb4583ac3204175a03c8ea8e371adee583b0bec Mon Sep 17 00:00:00 2001 +From: netliomax25-code +Date: Thu, 28 May 2026 12:44:11 +0530 +Subject: [PATCH] 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 53f842d1..33b92c9c 100644 +--- a/expat/lib/xmlparse.c ++++ b/expat/lib/xmlparse.c +@@ -4485,6 +4485,10 @@ 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; + +@@ -4525,8 +4529,13 @@ 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) { +-- +2.43.7 diff --git a/meta/recipes-core/expat/expat_2.7.5.bb b/meta/recipes-core/expat/expat_2.7.5.bb index 267e7db35b..affc134285 100644 --- a/meta/recipes-core/expat/expat_2.7.5.bb +++ b/meta/recipes-core/expat/expat_2.7.5.bb @@ -13,6 +13,7 @@ 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/"