CVE-2026-68108

High

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)

SeverityHigh
CVSS8.8
Exploit probability—
ProductLinux
PublishedAug 10, 2026
First seenAug 10, 2026

How to fix

Update
  • Linux Linux893db20383800cfe92e638705984eebb13bc81a5, a07430abd556de3707adfcadcc60db3fa64e4b2b, a6d7065b91a14790980ce6f4960db0ca8c3c9940, 7eebef042c12dfe0568593ee6a8926d16505925e, 00c311a13d225266800c712f2b7db2711c6897de, 186bfdc4e26d019b2e7570cb121964a1d89b2e5b or later

Affected products

ProductAffected versionsFixed in
Linux Linuxf1689ec1b0b1256d0e69653cd4aaeee44aafdf5c ≤ v < 893db20383800cfe92e638705984eebb13bc81a5, f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c ≤ v < a07430abd556de3707adfcadcc60db3fa64e4b2b, f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c ≤ v < a6d7065b91a14790980ce6f4960db0ca8c3c9940, f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c ≤ v < 7eebef042c12dfe0568593ee6a8926d16505925e, f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c ≤ v < 00c311a13d225266800c712f2b7db2711c6897de, f1689ec1b0b1256d0e69653cd4aaeee44aafdf5c ≤ v < 186bfdc4e26d019b2e7570cb121964a1d89b2e5b, 4.2893db20383800cfe92e638705984eebb13bc81a5, a07430abd556de3707adfcadcc60db3fa64e4b2b, a6d7065b91a14790980ce6f4960db0ca8c3c9940, 7eebef042c12dfe0568593ee6a8926d16505925e, 00c311a13d225266800c712f2b7db2711c6897de, 186bfdc4e26d019b2e7570cb121964a1d89b2e5b

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CVE-2026-68108 · Linux · Dark Radar