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VULNERABILITIES

CVE-2026-89959 Details

Description

In the Linux kernel, the following vulnerability has been resolved: s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove The vfio_ap_config_remove function uses the bitmap_andnot function to clear bits from the matrix_mdev->matrix.adm bitmap (specifies the control domains assigned to the mdev). This prevents the explicitly unplugged control domains from being removed the KVM guest. The bitmap_and function is used instead.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:8.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc kernel.org
https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4 kernel.org
https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052 kernel.org
https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c kernel.org
https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5 kernel.org

see all 6 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-89959
NVD Published Date:
Sep 16, 2026
NVD Last Modified:
Sep 16, 2026
Source:
kernel.org
CVE-2026-89959 Details - Not Deferred