Description
In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix iommu domain lifetime race during device removal

When force_iova mode is enabled, amdxdna_remove() frees xdna->domain. If
amdxdna_gem_obj_free() is called after device removal, it may attempt to
access xdna->domain, resulting in a use-after-free.

Fix the race by adding freeing xdna->domain as a managed release action,
so its lifetime is managed by DRM and remains valid until all managed
resources are released.
Published: 2026-08-28
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

This vulnerability is a race condition in the Linux kernel’s AMD XDNA driver that can lead to a use‑after‑free when the device is removed while force_iova mode is enabled. If an attacker can force the device removal and call amdxdna_gem_obj_free() subsequently, the driver may access freed memory and potentially execute arbitrary code or crash the system. The primary weakness is a memory‑corruption flaw that, when triggered, could allow local privilege escalation or denial of service.

Affected Systems

All Linux kernel systems that incorporate the AMD XDNA driver in force_iova mode may be affected. No specific kernel releases or version numbers are provided in the advisory, so the issue applies to any kernel build that includes the unpatched driver code.

Risk and Exploitability

The CVSS score is not listed and EPSS is unavailable, but the use‑after‑free race represents a high‑severity flaw that can be exploited locally with sufficient access to influence device removal order. The flaw is not currently listed in CISA’s KEV catalog and is not known to have public exploits, yet the nature of the bug warrants prompt remediation due to its potential impact on system stability and security.

Generated by OpenCVE AI on August 28, 2026 at 11:39 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Apply an updated Linux kernel release that contains the amdxdna driver fix
  • Disable force_iova mode in the AMD XDNA driver configuration until a patch is applied
  • Avoid performing device removal operations that could trigger the race before patching

Generated by OpenCVE AI on August 28, 2026 at 11:39 UTC.

Tracking

Sign in to view the affected projects.

Advisories

No advisories yet.

History

Fri, 28 Aug 2026 07:30:00 +0000

Type Values Removed Values Added
Description In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix iommu domain lifetime race during device removal When force_iova mode is enabled, amdxdna_remove() frees xdna->domain. If amdxdna_gem_obj_free() is called after device removal, it may attempt to access xdna->domain, resulting in a use-after-free. Fix the race by adding freeing xdna->domain as a managed release action, so its lifetime is managed by DRM and remains valid until all managed resources are released.
Title accel/amdxdna: Fix iommu domain lifetime race during device removal
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Subscriptions

Linux Linux Kernel
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-08-28T06:48:32.152Z

Reserved: 2026-08-26T14:34:25.773Z

Link: CVE-2026-80608

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-08-28T08:16:44.777

Modified: 2026-08-28T08:16:44.777

Link: CVE-2026-80608

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-28T11:30:06Z

Weaknesses

No weakness.