CVE-2026-68430
Description
A flaw was found in the Linux kernel's drm/amdgpu/gfx8 component. An unnecessary BUG_ON() call within this component could lead to a system crash. This vulnerability could allow a local attacker to cause a Denial of Service (DoS), rendering the system unresponsive.
Statement
Red Hat has determined that this vulnerability does not pose a significant risk to systems where the affected kernel module is loaded. The BUG_ON() assertion requires local access and specific GPU hardware conditions to trigger. Red Hat may apply this fix in a future kernel update.
Mitigation
There is no mitigation for this flaw. Systems without AMD GFX8 GPU hardware are not affected by this issue in practice, as the vulnerable code path is only reached when the amdgpu driver is loaded for GFX8 hardware.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 5.5 | N/A | N/A |
| Attack Vector | Local | N/A | N/A |
| Attack Complexity | Low | N/A | N/A |
| Privileges Required | Low | N/A | N/A |
| User Interaction | None | N/A | N/A |
| Scope | Unchanged | N/A | N/A |
| Confidentiality | None | N/A | N/A |
| Integrity Impact | None | N/A | N/A |
| Availability Impact | High | N/A | N/A |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Crash, Exit, or Restart
An attacker that can trigger an assert statement can still lead to a denial of service if the relevant code can be triggered by an attacker, and if the scope of the assert() extends beyond the attacker's own session.
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
