CVE-2026-80891: KVM: s390: pci: Validate AIBV and AISB before pinning guest pages

Overview

Severity

Medium (CVSS 5.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Sep

Released

2026-09-06

EPSS Score

0.17% (percentile: 6.9%)

Affected Products (1)

Other

• 21684-17084

Revision History

• 2026-09-06: Information published.