vhost: move vdpa group bound check to vhost_vdpa
CVE-2026-43248 · published 6 May 2026
How serious is it
- Severity: high, CVSS score 7.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-43248?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: bda324fd037a6b0d44da5699574ce741ca161bc4 to < 566899af053246406f2faf931044d2b0af8f34d2, bda324fd037a6b0d44da5699574ce741ca161bc4 to < ddb57354634b6ba851b79da45f1de42c646f27d0, bda324fd037a6b0d44da5699574ce741ca161bc4 to < 7441d35d14d9a3d66d925d90cb73c75394e6d454, bda324fd037a6b0d44da5699574ce741ca161bc4 to < 406db68f9cb976a8ddfafd631197264f2307e9c9
- Linux Linux: 5.19
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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.
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/566899af053246406f2faf931044d2b0af8f34d2
- git.kernel.org/stable/c/ddb57354634b6ba851b79da45f1de42c646f27d0
- git.kernel.org/stable/c/7441d35d14d9a3d66d925d90cb73c75394e6d454
- git.kernel.org/stable/c/406db68f9cb976a8ddfafd631197264f2307e9c9
- git.kernel.org/stable/c/cd025c1e876b4e262e71398236a1550486a73ede
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON