# virtio-fs: avoid double-free on failed queue setup

CVE record · `CVE-2026-93827`

- **Identifiers:** `CVE-2026-93827`
- **State:** Confirmed
- **Severity:** CVSS 8.4 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 24 Sept 2026
- **Updated:** 25 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 24 Sept 2026, 16:03 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `a8f62f50b4e4ea92a938fca2ec1bd108d7f210e9 to before 3fbc5ee776fefbc6ea34d2518f1f5f90aa2e1dad` (git)
  - affected: `a8f62f50b4e4ea92a938fca2ec1bd108d7f210e9 to before 20ef4739b329bb09cff11dd2458795a50674658e` (git)
  - affected: `a8f62f50b4e4ea92a938fca2ec1bd108d7f210e9 to before 6af3330ec5d5fb8c06c04eb520a71cf73ea5a765` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.9`
  - unaffected: `before 6.9` (semver)
  - unaffected: `6.12.111 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 8.4 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0014, the 3rd percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 24 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-93827](https://www.cve.org/CVERecord?id=CVE-2026-93827)
- [NVD: CVE-2026-93827](https://nvd.nist.gov/vuln/detail/CVE-2026-93827)

### References from the CNA

- <https://git.kernel.org/stable/c/3fbc5ee776fefbc6ea34d2518f1f5f90aa2e1dad>
- <https://git.kernel.org/stable/c/20ef4739b329bb09cff11dd2458795a50674658e>
- <https://git.kernel.org/stable/c/6af3330ec5d5fb8c06c04eb520a71cf73ea5a765>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-93827>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-93827/>. Everything for agents: <https://agentprime.io/llms.txt>.