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)
References
- https://git.kernel.org/stable/c/6598ac1721c3a5543efdbcab579a8561268d7ce1
- https://git.kernel.org/stable/c/c726c8bbee5115dad37fa7867136ebaa50690331
- https://git.kernel.org/stable/c/df1582c0a101e2e2f133dd331d2a3258bb6a7518
- https://git.kernel.org/stable/c/f16218689b41efcbc491207cd7716477b1223879
- https://git.kernel.org/stable/c/f8a9262c7a6fc2de9802e14b0228114f0333869e