CVE-2026-89821
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
drm/amd/display: avoid divide-by-zero in __is_lut_linear()
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | 2320626425f3af3a25b8afb6876f205b1c6d4e64 | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | d1e06d5dc8f12451ce71dc068342660a34476084 | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | c127ace7af2b40107947a6504391f94d6fd21734 | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | 4d5ee095a58461b2446d7a6eb0c14c2fe3eaab44 | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | 5f18cd1ba873e751bf5547407ad44ea34adfbe2f | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | ee28fafb50f58b847509b5240b431ddec673bdfe | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | 15ee43aad0df43dfd1dbb32e7d5b951745c4b87f | Unavailable | None listed |
| 086247a4b2fba49800b27807f22bb894cd8363fb | affected | git | 4f40873f8a4107df2b9c8e68c947c4fd0cd519d2 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.17 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.17 | Unavailable | None listed |
| 5.10.270 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.221 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.188 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.157 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.110 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.51 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.2.5 | unaffected | semver | Unavailable | 7.2.* | None listed |
| 7.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |