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CVE-2026-89821 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/15ee43aad0df43dfd1dbb32e7d5b951745c4b87f	kernel.org
https://git.kernel.org/stable/c/2320626425f3af3a25b8afb6876f205b1c6d4e64	kernel.org
https://git.kernel.org/stable/c/4d5ee095a58461b2446d7a6eb0c14c2fe3eaab44	kernel.org
https://git.kernel.org/stable/c/4f40873f8a4107df2b9c8e68c947c4fd0cd519d2	kernel.org
https://git.kernel.org/stable/c/5f18cd1ba873e751bf5547407ad44ea34adfbe2f	kernel.org
https://git.kernel.org/stable/c/c127ace7af2b40107947a6504391f94d6fd21734	kernel.org
https://git.kernel.org/stable/c/d1e06d5dc8f12451ce71dc068342660a34476084	kernel.org
https://git.kernel.org/stable/c/ee28fafb50f58b847509b5240b431ddec673bdfe	kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes