CVE-2026-98148

Summary

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

Affected Software

VendorProductVersion RangeStatus
LinuxLinux40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < b2cd682324b889011874cf844b7c7efa97c97296affected
LinuxLinux40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < 876b33d8a9a00e9d4bbcbb7f55ad2c05974850deaffected
LinuxLinux40e1a70b4aedf2859a1829991b48ef0ebe650bf2 < cb732d027aa18e1fcf9d2797f47d20b179ebc59caffected
LinuxLinux5.13affected
LinuxLinux0 < 5.13unaffected
LinuxLinux6.18.53 <= 6.18.*unaffected
LinuxLinux7.2.7 <= 7.2.*unaffected
LinuxLinux7.3-rc2 <= *unaffected

Weaknesses

References