{"cve":"CVE-2026-89959","nvd":{"published":"2026-09-16T11:17:06.320","modified":"2026-10-19T09:18:42.087","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove\n\nThe vfio_ap_config_remove function uses the bitmap_andnot function to clear\nbits from the matrix_mdev->matrix.adm bitmap (specifies the control domains\nassigned to the mdev). This prevents the explicitly unplugged control\ndomains from being removed the KVM guest. The bitmap_and function is used\ninstead.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","score":8.8},"cwes":[],"references":["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"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:54:41.405518556+00:00"},"epss":{"cve":"CVE-2026-89959","score":0.00169,"percentile":0.06188,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}