CVE-2026-68254
In the Linux kernel, the following vulnerability has been resolved:
drm/i915/vrr: require valid min/max vfreq for VRR
Ensure the EDID provided min/max vfreq are valid. Most scenarios are
already covered (by coincidence) through the checks in
intel_vrr_is_capable() and intel_vrr_is_in_range(), but be more explicit
about it. At worst, a zero min_vfreq could lead to a division by zero in
intel_vrr_compute_vmax().
Discovered using AI-assisted static analysis confirmed by Intel Product
Security.
(cherry picked from commit 1765cf59f517b02f3b0591fe5120930d08bddeb6)
CSIRTS triage
- What
- The Intel i915 DRM driver does not validate minimum and maximum refresh frequency parameters for Variable Refresh Rate mode.
- Who is affected
- Linux systems with Intel integrated graphics using the i915 driver with VRR support.
- Urgency
- Medium priority; invalid parameters can cause display malfunction or system instability.
- Action
- Apply Linux kernel patch for CVE-2026-68254 when available from your distribution.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.17% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 7% of all EPSS-scored CVEs.
Advisory coverage (3)
- unknownDSA-6466-1 linux - security updatedebian · 2026-08-25
- mediumCVE-2026-68254: drm/i915/vrr: require valid min/max vfreq for VRRmsrc · 2026-08-11
- unknownCVE-2026-68254: In the Linux kernel, the following vulnerability has been resolved: drm/i915/vrr: require vali…nvd · 2026-08-10
External references
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