{"id":"CVE-2026-98181","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: fix out-of-bounds write in gud_plane_atomic_check()\n\nThe plane property loop uses req->properties[num_properties + i] as write\nindex while simultaneously incre…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: fix out-of-bounds write in gud_plane_atomic_check()\n\nThe plane property loop uses req->properties[num_properties + i] as write\nindex while simultaneously incre…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < ee04903fe6a098160d20dde4fc5af4cb42846735","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 4153a9e008f2512bd3cf90a319436865847369b9","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 5f5e565410b4987e9663f599f9ab0c350f8338d4","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 7e630edb22088df7aa0d55b02237a71e4c9a523d","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 2c92af27ad23e2fbc0367b11a9027d36d94ef4b3","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < ea57100955c1c2a525ba1a98c18d9a05b25aeedb","Linux >= 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 59ced288fcba9e91bd38e61a972ad782c4edb7d0","Linux 5.13"],"published":"2026-10-06","updated":"2026-10-06","sourceUpdated":"2026-10-06T09:18:02.807","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98181","references":[{"url":"https://git.kernel.org/stable/c/2c92af27ad23e2fbc0367b11a9027d36d94ef4b3","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4153a9e008f2512bd3cf90a319436865847369b9","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/59ced288fcba9e91bd38e61a972ad782c4edb7d0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/5f5e565410b4987e9663f599f9ab0c350f8338d4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7e630edb22088df7aa0d55b02237a71e4c9a523d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ea57100955c1c2a525ba1a98c18d9a05b25aeedb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ee04903fe6a098160d20dde4fc5af4cb42846735","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98181.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98181"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2546485"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98181"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98181"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98181.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-10-06T08:50:17.451Z","epss":0.00173,"epssPercentile":0.06631,"cvss":4.6,"cvssVector":"CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-787"],"slug":"CVE-2026-98181","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/gud: fix out-of-bounds write in gud_plane_atomic_check()\n\nThe plane property loop uses req->properties[num_properties + i] as write\nindex while simultaneously incrementing `num_properties` inside the loop.\nAt iteration i, num_properties has also incremented by i, so the write\nis done at `initial_num_properties + 2*i`, skipping every other index and\nadvancing by 2 per iteration.\n\nWith just 2 connector and 32 plane properties the last write happens at\nindex 64, one slot past the end of the 64-slot (indices 0–63)\nallocation. A USB device can trigger OOB by advertising the maximum\nnumber of properties.\n\nFix by dropping the redundant `+ i`; num_properties is already the correct\nrunning index, as gud_connector_fill_properties() fills the preceding\nslots.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98181.json)","depth":"sunlit","depthScore":25,"depthScoreParts":{"impact":25.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":222967,"id":"CVE-2026-98181","ts":1792151817819,"field":"cvss","old":null,"new":"4.6"},{"seq":222966,"id":"CVE-2026-98181","ts":1792151817819,"field":"severity","old":"none","new":"medium"}]}