CVE-2026-31767

A flaw was found in the drm/i915/dsi module of the Linux kernel. Incorrect horizontal timing adjustments for Display Stream Compression (DSC) in command mode can lead to a division-by-zero error. This occurs when the adjusted horizontal total (htotal) becomes too small, causing the kernel to crash when determining the vertical total (vtotal). This vulnerability could result in a Denial of Service (DoS).

Intel DSI command mode must not apply DSC horizontal timing tweaks meant for video mode. Red Hat recommends i915 users install DRM fixes from kernel errata; no credible module unload for i915 on affected graphics stacks.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.