CVE-2026-68106
Description
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)
How to fix
- Linux Linux004d0453cfef16f056cb7b8bc04f69f19cf9df32, 00ee64910ecf748cc15b23bbcbea472c203ec1e8, 81c9b4921f62d1642b9d775524ae9240e521a5ed, 52f9a588296432accf2982f7d258192a37562f4f, a00946b5ab7c25da5685ca9c58f50ff6f43c0fdf, ffb33d466a68cea3e8a3dbed04d79037a3cbabd1, be725ab23aa45c11a5afef3e2a9f6d8c084ae5dc, 0c01c811be47e6b146552dd59bfedbea8f09b8f4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < 004d0453cfef16f056cb7b8bc04f69f19cf9df32, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < 00ee64910ecf748cc15b23bbcbea472c203ec1e8, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < 81c9b4921f62d1642b9d775524ae9240e521a5ed, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < 52f9a588296432accf2982f7d258192a37562f4f, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < a00946b5ab7c25da5685ca9c58f50ff6f43c0fdf, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < ffb33d466a68cea3e8a3dbed04d79037a3cbabd1, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < be725ab23aa45c11a5afef3e2a9f6d8c084ae5dc, d38ceaf99ed015f2a0b9af3499791bd3a3daae21 ≤ v < 0c01c811be47e6b146552dd59bfedbea8f09b8f4, 4.2 | 004d0453cfef16f056cb7b8bc04f69f19cf9df32, 00ee64910ecf748cc15b23bbcbea472c203ec1e8, 81c9b4921f62d1642b9d775524ae9240e521a5ed, 52f9a588296432accf2982f7d258192a37562f4f, a00946b5ab7c25da5685ca9c58f50ff6f43c0fdf, ffb33d466a68cea3e8a3dbed04d79037a3cbabd1, be725ab23aa45c11a5afef3e2a9f6d8c084ae5dc, 0c01c811be47e6b146552dd59bfedbea8f09b8f4 |
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Attack Surface Management
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