# CVE-2026-98148: drm/gud: validate GUD_ROTATION_0 is present in supported rotations

CVE-2026-98148 is fixed in linux on 1 platform, first by DEBIAN-CVE-2026-98148, released October 2, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-98148
- Priority: High
- CVSS: 7.8 (Important)
- EPSS: 0.0011
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 25, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98148

## 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

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.12.115-2 | [DEBIAN-CVE-2026-98148](https://patchblox.com/security/data/fix/linux/debian-cve-2026-98148.md) | Oct 2, 2026 |
| Linux | linux Debian 14 | 7.2.7-1 | [DEBIAN-CVE-2026-98148](https://patchblox.com/security/data/fix/linux/debian-cve-2026-98148.md) | Oct 2, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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