Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

Go to Calendar     Go to Press Room     Go to Newsletters subscription

CVE-2026-68108

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
10/08/2026
Last modified:
19/08/2026

Description

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

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 8.80 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
8.80
Severity 3.x
HIGH

References to Advisories, Solutions, and Tools