CVE-2026-68106
HighCVSS 7.8Exploitation Probability (EPSS)
Low risk3th percentile - higher than 3% of all known CVEs
Summary
In the Linux kernel, the amdgpu driver fixed a division by zero with invalid UVD dimensions. When width or height is less than 16, width_in_mb or height_in_mb becomes 0, leading to division by zero in H264 and H264 Perf decode paths. Added validation to reject frames with dimensions smaller than 16.
Risk Assessment
Division by zero may cause a kernel panic or incorrect decoder behavior, potentially exploitable for DoS attacks.
Recommendation
Apply the Linux kernel update containing this commit to prevent division by zero and related crashes.
Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: fix division by zero with invalid uvd dimensions When width or height is less than 16, width_in_mb or height_in_mb becomes 0, leading to fs_in_mb being 0. This causes a division by zero when calculating num_dpb_buffer in H264 and H264 Perf decode paths. Add validation to reject frames with width < 16 or height < 16 before performing any calculations that depend on these values. V2: Format change - move up all vaiable definitions. V3: Use warn_once to avoid spam. (cherry picked from commit 3e41d26c70b0a459d041cc19482a226c4b7423cb)