CVE-2026-45894: iommu/vt-d: Clear Present bit before tearing down PASID entry

Overview

Severity

High (CVSS 7.3)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H/E:U

Exploit Status

Not Exploited

Patch Tuesday

2026-May

Released

2026-05-28

Last Updated

2026-06-28

EPSS Score

0.15% (percentile: 4.5%)

Affected Products (3)

Open Source Software

• azl3 kernel 6.6.139.1-1 on Azure Linux 3.0

Other

• 21443-17084
• 21474-17084

Revision History

• 2026-05-28: Information published.
• 2026-05-28: Information published.
• 2026-05-29: Information published.
• 2026-06-17: Information published.
• 2026-06-28: Information published.