Quick answers
- Is CVE-2026-98148 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-98148 being exploited in the wild.
- How severe is CVE-2026-98148?
- Informational severity, published 25 September 2026.
- Which products and versions are affected?
- Unknown Linux kernel affected versions include 6.x and stable branches; introduced in commit 40e1a70b4aed.
- Is there a fix for CVE-2026-98148?
- A patch was published on 2026-08-21: Fix committed upstream Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-98148 attacked?
- It is attacked from the adjacent network, in an operating system.
- Am I affected by CVE-2026-98148?
- Check whether you run Unknown Linux kernel at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
The GUD driver invokes drm_plane_create_rotation_property() with a rotation bitmask from the device, but never validates that GUD_ROTATION_0 is set, triggering a WARN_ON in the DRM core. The fix adds a validation check to skip rotation property creation if the flag is absent. This is a kernel warning/assertion validation issue affecting the display driver stack.
Affected products
- <UNKNOWN> Linux kernel affected versions include 6.x and stable branches; introduced in commit 40e1a70b4aed
Timeline
- 2026-09-25: disclosed: Published on NVD
- 2026-08-21: patched: Fix committed upstream