CVE-2026-89959
8.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 < 12871a4269f139221c9fde9ea3eb69c9228f59d4 | affected |
| Linux | Linux | eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 < 02e72909453dee2f8a09f78819f9a9cb902dfbdc | affected |
| Linux | Linux | eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 < 4bffadde7fc49b00493fb78c6376f958998d4b8c | affected |
| Linux | Linux | eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 < f7d66afc34bc6e833c8ebe56973afec35f473bc1 | affected |
| Linux | Linux | eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 < 2ff68bf414de167bc138e6e211ee1ad3ab3c5052 | affected |
| Linux | Linux | eeb386aeb5b7c8d2dae6a3ba49255d8a97803182 < 6b8a02e216f6b520cc029e43ddc83956605135d5 | affected |
| Linux | Linux | 6.0 | affected |
| Linux | Linux | 0 < 6.0 | unaffected |
| Linux | Linux | 6.1.188 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.157 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.110 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.51 <= 6.18.* | unaffected |
| Linux | Linux | 7.2.5 <= 7.2.* | unaffected |
| Linux | Linux | 7.3-rc1 <= * | unaffected |
Weaknesses
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
Feedback
Was this page helpful?
Glad to hear it! Please tell us how we can improve.
Sorry to hear that. Please tell us how we can improve.