Memory Leak in Linux Kernel drm/vmwgfx KMS Surface Tracker

Publication date: 2026-04-03

Last updated on: 2026-04-23

Assigner: kernel.org

Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Don't overwrite KMS surface dirty tracker We were overwriting the surface's dirty tracker here causing a memory leak.

CVSS Scores

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Meta Information

Published

2026-04-03

Last Modified

2026-04-23

Generated

2026-07-06

AI Q&A

2026-04-03

EPSS Evaluated

2026-07-05

NVD

CVE-2026-23430

EUVD

EUVD-2026-18665

Affected Vendors & Products

Vendor	Product	Version / Range
linux	linux_kernel	6.16
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	7.0
linux	linux_kernel	From 6.19 (inc) to 6.19.10 (exc)
linux	linux_kernel	From 6.16.1 (inc) to 6.18.20 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-401	The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

Attack-Flow Graph

Executive Summary

This vulnerability exists in the Linux kernel's drm/vmwgfx component. It involves overwriting the KMS (Kernel Mode Setting) surface dirty tracker, which is a mechanism used to track changes on a graphics surface. Overwriting this tracker caused a memory leak.

Impact Analysis

The impact of this vulnerability is a memory leak in the Linux kernel's graphics subsystem. Memory leaks can lead to increased memory usage over time, potentially causing system instability, degraded performance, or crashes if the leak is severe and not mitigated.

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