s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove
Summary
| CVE | CVE-2026-89959 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-09-16 11:17:06 UTC |
| Updated | 2026-09-16 15:18:20 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 8.8 HIGH from 416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
ChangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 12871a4269f139221c9fde9ea3eb69c9228f59d4 git | Not specified |
| CNA | Linux | Linux | affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 02e72909453dee2f8a09f78819f9a9cb902dfbdc git | Not specified |
| CNA | Linux | Linux | affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 4bffadde7fc49b00493fb78c6376f958998d4b8c git | Not specified |
| CNA | Linux | Linux | affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 f7d66afc34bc6e833c8ebe56973afec35f473bc1 git | Not specified |
| CNA | Linux | Linux | affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 2ff68bf414de167bc138e6e211ee1ad3ab3c5052 git | Not specified |
| CNA | Linux | Linux | affected eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 6b8a02e216f6b520cc029e43ddc83956605135d5 git | Not specified |
| CNA | Linux | Linux | affected 6.0 | Not specified |
| CNA | Linux | Linux | unaffected 6.0 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.188 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.157 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.110 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.51 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2.5 7.2.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.3-rc1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/02e72909453dee2f8a09f78819f9a9cb902dfbdc | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/f7d66afc34bc6e833c8ebe56973afec35f473bc1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/4bffadde7fc49b00493fb78c6376f958998d4b8c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6b8a02e216f6b520cc029e43ddc83956605135d5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/12871a4269f139221c9fde9ea3eb69c9228f59d4 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/2ff68bf414de167bc138e6e211ee1ad3ab3c5052 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.