CVE-2026-68108

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vce: fix integer overflow in image size Fix a security vulnerability where malicious VCE command streams with oversized dimensions (e.g. 65536×65536) cause 32-bit integer overflow, wrapping the calculated buffer size to 0. This bypasses validation and allows GPU firmware to perform out-of-bound memory access. The fix uses 64-bit arithmetic to detect overflow and rejects invalid dimensions before they reach the hardware. V2: remove redundant check V3: modify max height value V4: remove size64 (cherry picked from commit cbe408dba581755ad1279a487ec786d8927d778d)

References

• https://git.kernel.org/stable/c/00c311a13d225266800c712f2b7db2711c6897de
• https://git.kernel.org/stable/c/186bfdc4e26d019b2e7570cb121964a1d89b2e5b
• https://git.kernel.org/stable/c/7eebef042c12dfe0568593ee6a8926d16505925e
• https://git.kernel.org/stable/c/a07430abd556de3707adfcadcc60db3fa64e4b2b
• https://git.kernel.org/stable/c/a6d7065b91a14790980ce6f4960db0ca8c3c9940