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GET /api/patches/2195165/?format=api
{ "id": 2195165, "url": "http://patchwork.ozlabs.org/api/patches/2195165/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/CAJ9qJssSwxkmEVethg57-Ph6maEfButSaV-r07ma9_x1sp6wYg@mail.gmail.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "name": "QEMU Development", "link_name": "qemu-devel", "list_id": "qemu-devel.nongnu.org", "list_email": "qemu-devel@nongnu.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<CAJ9qJssSwxkmEVethg57-Ph6maEfButSaV-r07ma9_x1sp6wYg@mail.gmail.com>", "list_archive_url": null, "date": "2026-02-10T12:46:34", "name": "block/vmdk: fix OOB read in vmdk_read_extent()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "f8568781784fe785b1198560f49781ef54f64d0b", "submitter": { "id": 92619, "url": "http://patchwork.ozlabs.org/api/people/92619/?format=api", "name": "Oblivionsage", "email": "cookieandcream560@gmail.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/CAJ9qJssSwxkmEVethg57-Ph6maEfButSaV-r07ma9_x1sp6wYg@mail.gmail.com/mbox/", "series": [ { "id": 491681, "url": "http://patchwork.ozlabs.org/api/series/491681/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=491681", "date": "2026-02-10T12:46:34", "name": "block/vmdk: fix OOB read in vmdk_read_extent()", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/491681/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2195165/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2195165/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "X-Original-To": "incoming@patchwork.ozlabs.org", "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20230601 header.b=Ba012SY6;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Tue, 10 Feb 2026\n 04:46:46 -0800 (PST)", "MIME-Version": "1.0", "From": "Oblivionsage <cookieandcream560@gmail.com>", "Date": "Tue, 10 Feb 2026 13:46:34 +0100", "X-Gm-Features": "AZwV_Qj7A9ZcmCzTAmz7zRyx6kLeixDnbVgS-5m_bVkhJl38RRj1mhtHzzk-ydk", "Message-ID": "\n <CAJ9qJssSwxkmEVethg57-Ph6maEfButSaV-r07ma9_x1sp6wYg@mail.gmail.com>", "Subject": "[PATCH] block/vmdk: fix OOB read in vmdk_read_extent()", "To": "qemu-devel@nongnu.org", "Cc": "qemu-block@nongnu.org, qemu-stable@nongnu.org,\n Kevin Wolf <kwolf@redhat.com>, Hanna Czenczek <hreitz@redhat.com>,\n Fam Zheng <fam@euphon.net>", "Content-Type": "multipart/alternative; boundary=\"000000000000fdfa0e064a77a5dd\"", "Received-SPF": "pass client-ip=2607:f8b0:4864:20::335;\n envelope-from=cookieandcream560@gmail.com; helo=mail-ot1-x335.google.com", "X-Spam_score_int": "-17", "X-Spam_score": "-1.8", "X-Spam_bar": "-", "X-Spam_report": "(-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1,\n DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, HTML_MESSAGE=0.001,\n RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001,\n SPF_PASS=-0.001 autolearn=unavailable autolearn_force=no", "X-Spam_action": "no action", "X-Mailman-Approved-At": "Tue, 10 Feb 2026 08:53:13 -0500", "X-BeenThere": "qemu-devel@nongnu.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "qemu development <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From d335821a1f814eb3059ab5e6a7cd771360b698c4 Mon Sep 17 00:00:00 2001\nFrom: Oblivionsage <cookieandcream560@gmail.com>\nDate: Tue, 10 Feb 2026 13:33:25 +0100\nSubject: [PATCH] block/vmdk: fix OOB read in vmdk_read_extent()\nTo: qemu-devel@nongnu.org\nCc: qemu-block@nongnu.org,\n qemu-stable@nongnu.org,\n kwolf@redhat.com,\n hreitz@redhat.com,\n fam@euphon.net\n\nBounds check for marker.size doesn't account for the 12-byte marker\nheader, allowing zlib to read past the allocated buffer.\n\nMove the check inside the has_marker block and subtract the marker size.\n\nFixes: CVE-2026-2243\nReported-by: Halil Oktay (oblivionsage) <cookieandcream560@gmail.com>\nSigned-off-by: Halil Oktay (oblivionsage) <cookieandcream560@gmail.com>\n---\n block/vmdk.c | 8 ++++----\n 1 file changed, 4 insertions(+), 4 deletions(-)\n\n if (ret != Z_OK) {\n--\n2.47.3", "diff": "diff --git a/block/vmdk.c b/block/vmdk.c\nindex 89e89cd10e..cd8b4ec7c8 100644\n--- a/block/vmdk.c\n+++ b/block/vmdk.c\n@@ -1951,10 +1951,10 @@ vmdk_read_extent(VmdkExtent *extent, int64_t\ncluster_offset,\n marker = (VmdkGrainMarker *)cluster_buf;\n compressed_data = marker->data;\n data_len = le32_to_cpu(marker->size);\n- }\n- if (!data_len || data_len > buf_bytes) {\n- ret = -EINVAL;\n- goto out;\n+ if (!data_len || data_len > buf_bytes - sizeof(VmdkGrainMarker)) {\n+ ret = -EINVAL;\n+ goto out;\n+ }\n }\n ret = uncompress(uncomp_buf, &buf_len, compressed_data, data_len);\n", "prefixes": [] }