CVE-2026-43248
Published: May 7, 2026Last modified: November 3, 2026
Description
In the Linux kernel, the following vulnerability has been resolved: vhost: move vdpa group bound check to vhost_vdpa Remove duplication by consolidating these here. This reduces the posibility of a parent driver missing them. While we're at it, fix a bug in vdpa_sim where a valid ASID can be assigned to a group equal to ngroups, causing an out of bound write.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Fixed (6.1.191-r0) |
| 25 LTS | linux-lts | Fixed (6.12.80-r0) | |
| Stream | linux-lts | Fixed (6.18.35-r1) |
References
- https://git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9
- https://git.kernel.org/stable/c/566899af053246406f2faf931044d2b0af8f34d2
- https://git.kernel.org/stable/c/69ec8dd6696069c2f18430d0e05f81d604484ee8
- https://git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454
- https://git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede
- https://git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0