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d="scan'208";a="502552730" Received: from rcdn-l-core-03.cisco.com ([173.37.255.140]) by rcdn-iport-3.cisco.com with ESMTP/TLS/TLS_AES_256_GCM_SHA384; 29 Jun 2026 12:44:38 +0000 Received: from sjc-ads-20495.cisco.com (sjc-ads-20495.cisco.com [171.70.188.248]) (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-03.cisco.com (Postfix) with ESMTPS id 00989180005A1; Mon, 29 Jun 2026 12:44:38 +0000 (GMT) Received: by sjc-ads-20495.cisco.com (Postfix, from userid 1877012) id 9D1DFCC124B; Mon, 29 Jun 2026 05:44:37 -0700 (PDT) From: "Ashishkumar Parmar X (asparmar - E INFOCHIPS PRIVATE LIMITED at Cisco)" To: openembedded-core@lists.openembedded.org Cc: xe-linux-external@cisco.com, to@cisco.com, Ashishkumar Parmar Subject: [OE-core][wrynose][PATCH 1/3] qemu: Fix CVE-2026-2243 Date: Mon, 29 Jun 2026 05:44:29 -0700 Message-Id: <20260629124431.2000781-1-asparmar@cisco.com> X-Mailer: git-send-email 2.35.6 MIME-Version: 1.0 X-Auto-Response-Suppress: DR, OOF, AutoReply X-Outbound-Client-TLS: VERIFIED;sjc-ads-20495.cisco.com [171.70.188.248];TLSv1.3;TLS_AES_256_GCM_SHA384;256;ciscoit-managed-infra-smtp-auth.cisco.com X-Outbound-SMTP-Client: 171.70.188.248, sjc-ads-20495.cisco.com X-Outbound-Node: rcdn-l-core-03.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 ; Mon, 29 Jun 2026 12:44:44 -0000 X-Groupsio-URL: https://lists.openembedded.org/g/openembedded-core/message/239769 From: Ashishkumar Parmar This patch applies the upstream stable-10.2 backport for CVE-2026-2243. The upstream fix commit is referenced in [1], and the public CVE advisory is referenced in [2]. [1] https://gitlab.com/qemu-project/qemu/-/commit/86b5130fefbe476f3c0a85b9e136f9e3fd518689 [2] https://github.com/advisories/GHSA-cw9w-w7fx-35q6 Signed-off-by: Ashishkumar Parmar --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2026-2243.patch | 45 +++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2026-2243.patch diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 4b6c2252b7..1d493ee1a3 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -37,6 +37,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://qemu-guest-agent.init \ file://qemu-guest-agent.udev \ file://CVE-2024-6519.patch \ + file://CVE-2026-2243.patch \ " # file index at download.qemu.org isn't reliable: https://gitlab.com/qemu-project/qemu-web/-/issues/9 UPSTREAM_CHECK_URI = "https://www.qemu.org" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2026-2243.patch b/meta/recipes-devtools/qemu/qemu/CVE-2026-2243.patch new file mode 100644 index 0000000000..bb2cb63b91 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2026-2243.patch @@ -0,0 +1,45 @@ +From 1633b8cd69483ed6c481aa596d3c760c09257c27 Mon Sep 17 00:00:00 2001 +From: "Halil Oktay (oblivionsage)" +Date: Tue, 10 Feb 2026 13:33:25 +0100 +Subject: [PATCH] block/vmdk: fix OOB read in vmdk_read_extent() + +Bounds check for marker.size doesn't account for the 12-byte marker +header, allowing zlib to read past the allocated buffer. + +Move the check inside the has_marker block and subtract the marker size. + +CVE: CVE-2026-2243 +Upstream-Status: Backport [https://gitlab.com/qemu-project/qemu/-/commit/86b5130fefbe476f3c0a85b9e136f9e3fd518689] + +Fixes: CVE-2026-2243 +Reported-by: Halil Oktay (oblivionsage) +Signed-off-by: Halil Oktay (oblivionsage) +Reviewed-by: Kevin Wolf +Signed-off-by: Kevin Wolf +(cherry picked from commit cfda94eddb6c9c49b66461c950b22845a46a75c9) +Signed-off-by: Michael Tokarev +(cherry picked from commit 86b5130fefbe476f3c0a85b9e136f9e3fd518689) +Signed-off-by: Ashishkumar Parmar +--- + block/vmdk.c | 8 ++++---- + 1 file changed, 4 insertions(+), 4 deletions(-) + +diff --git a/block/vmdk.c b/block/vmdk.c +index 89e89cd10..cd8b4ec7c 100644 +--- a/block/vmdk.c ++++ b/block/vmdk.c +@@ -1951,10 +1951,10 @@ vmdk_read_extent(VmdkExtent *extent, int64_t cluster_offset, + marker = (VmdkGrainMarker *)cluster_buf; + compressed_data = marker->data; + data_len = le32_to_cpu(marker->size); +- } +- if (!data_len || data_len > buf_bytes) { +- ret = -EINVAL; +- goto out; ++ if (!data_len || data_len > buf_bytes - sizeof(VmdkGrainMarker)) { ++ ret = -EINVAL; ++ goto out; ++ } + } + ret = uncompress(uncomp_buf, &buf_len, compressed_data, data_len); + if (ret != Z_OK) {