vhost: move vdpa group bound check to vhost_vdpa
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9
- https://git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454
- https://git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede
- https://git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43248.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-43248