CVE-2026-89959
- Source
- https://cve.org/CVERecord?id=CVE-2026-89959
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89959.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-89959
- Downstream
- Published
- 2026-09-16T10:32:41Z
- Modified
- 2026-09-17T03:47:20Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVSS Calculator
- Summary
- s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove
- Details
-
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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89959.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc
- https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4
- https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052
- https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c
- https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5
- https://git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89959.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-89959
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedeeb386aeb5b7c8d2dae6a3ba49255d8a97803182Fixed12871a4269f139221c9fde9ea3eb69c9228f59d4Fixed02e72909453dee2f8a09f78819f9a9cb902dfbdcFixed4bffadde7fc49b00493fb78c6376f958998d4b8cFixedf7d66afc34bc6e833c8ebe56973afec35f473bc1Fixed2ff68bf414de167bc138e6e211ee1ad3ab3c5052Fixed6b8a02e216f6b520cc029e43ddc83956605135d5
Linux / Kernel
Package
- Name
- Kernel