CVEvulnerability
CVE-2026-89959
8.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-16
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 8.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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.
References
- https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc git.kernel.org
- https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4 git.kernel.org
- https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052 git.kernel.org
- https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c git.kernel.org
- https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5 git.kernel.org
- https://git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1 git.kernel.org