CVE-2026-89959s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove
Updated under an hour ago ()
Does this affect you?
It affects Linux. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
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.
- CVSS
- 8.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Sep 16, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 before 12871a4269f139221c9fde9ea3eb69c9228f59d4; from eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 before 02e72909453dee2f8a09f78819f9a9cb902dfbdc; from eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 before 4bffadde7fc49b00493fb78c6376f958998d4b8c; from eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 before f7d66afc34bc6e833c8ebe56973afec35f473bc1; from eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 before 2ff68bf414de167bc138e6e211ee1ad3ab3c5052; from eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 before 6b8a02e216f6b520cc029e43ddc83956605135d5 | CNA record |
References
- https://git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4
- https://git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc
- https://git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c
- https://git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1
- https://git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052
- https://git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.