drm/amd/display: avoid divide-by-zero in __is_lut_linear() (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 12 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: avoid divide-by-zero in __is_lut_linear() __is_lut_linear() computes the expected value of each entry with expected = i * MAX_DRM_LUT_VALUE / (size - 1); If it is ever called with a single-entry LUT, size - 1 is zero and the kernel takes a divide error (#DE). A LUT with fewer than two entries cannot describe a linear mapping anyway, so return false early instead of dividing by zero.
References
- https://git.kernel.org/stable/c/2320626425f3af3a25b8afb6876f205b1c6d4e64
- https://git.kernel.org/stable/c/d1e06d5dc8f12451ce71dc068342660a34476084
- https://git.kernel.org/stable/c/c127ace7af2b40107947a6504391f94d6fd21734
- https://git.kernel.org/stable/c/4d5ee095a58461b2446d7a6eb0c14c2fe3eaab44
- https://git.kernel.org/stable/c/5f18cd1ba873e751bf5547407ad44ea34adfbe2f
- https://git.kernel.org/stable/c/ee28fafb50f58b847509b5240b431ddec673bdfe
- https://git.kernel.org/stable/c/15ee43aad0df43dfd1dbb32e7d5b951745c4b87f
- https://git.kernel.org/stable/c/4f40873f8a4107df2b9c8e68c947c4fd0cd519d2
European references
- ENISA EUVD · EUVD-2026-80421
- GCVE · GCVE-0-2026-89821
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-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 086247a4b2fba49800b27807f22bb894cd8363fb < 2320626425f3af3a25b8afb6876f205b1c6d4e64 ; affected 086247a4b2fba49800b27807f22bb894cd8363fb < d1e06d5dc8f12451ce71dc068342660a34476084 ; affected 086247a4b2fba49800b27807f22bb894cd8363fb < c127ace7af2b40107947a6504391f94d6fd21734 ; affected 086247a4b2fba49800b27807f22bb894cd8363fb < 4d5ee095a58461b2446d7a6eb0c14c2fe3eaab44 ; affected 086247a4b2fba49800b27807f22bb894cd8363fb < 5f18cd1ba873e751bf5547407ad44ea34adfbe2f ; affected 086247a4b2fba49800b27807f22bb894cd8363fb < ee28fafb50f58b847509b5240b431ddec673bdfe |
| Linux · Linux | affected 4.17 ; unaffected 0 < 4.17 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 6.6.* |
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 |