drm/gud: fix out-of-bounds write in gud_plane_atomic_check() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.17 % · percentile 7 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: drm/gud: fix out-of-bounds write in gud_plane_atomic_check() The plane property loop uses req->properties[num_properties + i] as write index while simultaneously incrementing `num_properties` inside the loop. At iteration i, num_properties has also incremented by i, so the write is done at `initial_num_properties + 2*i`, skipping every other index and advancing by 2 per iteration. With just 2 connector and 32 plane properties the last write happens at index 64, one slot past the end of the 64-slot (indices 0–63) allocation. A USB device can trigger OOB by advertising the maximum number of properties. Fix by dropping the redundant `+ i`; num_properties is already the correct running index, as gud_connector_fill_properties() fills the preceding slots.
References
- https://git.kernel.org/stable/c/ee04903fe6a098160d20dde4fc5af4cb42846735
- https://git.kernel.org/stable/c/4153a9e008f2512bd3cf90a319436865847369b9
- https://git.kernel.org/stable/c/5f5e565410b4987e9663f599f9ab0c350f8338d4
- https://git.kernel.org/stable/c/7e630edb22088df7aa0d55b02237a71e4c9a523d
- https://git.kernel.org/stable/c/2c92af27ad23e2fbc0367b11a9027d36d94ef4b3
- https://git.kernel.org/stable/c/ea57100955c1c2a525ba1a98c18d9a05b25aeedb
- https://git.kernel.org/stable/c/59ced288fcba9e91bd38e61a972ad782c4edb7d0
European references
- ENISA EUVD · EUVD-2026-93109
- GCVE · GCVE-0-2026-98181
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1374 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < ee04903fe6a098160d20dde4fc5af4cb42846735 ; affected 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 4153a9e008f2512bd3cf90a319436865847369b9 ; affected 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 5f5e565410b4987e9663f599f9ab0c350f8338d4 ; affected 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 7e630edb22088df7aa0d55b02237a71e4c9a523d ; affected 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 2c92af27ad23e2fbc0367b11a9027d36d94ef4b3 ; affected 40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < ea57100955c1c2a525ba1a98c18d9a05b25aeedb |
| Linux · Linux | affected 5.13 ; unaffected 0 < 5.13 ; unaffected 5.15.222 ≤ 5.15.* ; unaffected 6.1.189 ≤ 6.1.* ; unaffected 6.6.158 ≤ 6.6.* ; unaffected 6.12.112 ≤ 6.12.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |