# drm/virtio: fix memory leak of fence event on execbuffer failure

CVE record · `CVE-2026-98509`

- **Identifiers:** `CVE-2026-98509`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 18 Oct 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 18 Oct 2026, 15:17 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: `cd7f5ca33585918febe5e2f6dc090a21cfa775b0 to before 43bfe2b60c149bf6effda25f245a00509061fa15` (git)
  - affected: `cd7f5ca33585918febe5e2f6dc090a21cfa775b0 to before 4e333e2336138f4659b1d7a0371c499f80428612` (git)
  - affected: `cd7f5ca33585918febe5e2f6dc090a21cfa775b0 to before 8fa78900fd24247277c03dc7b8a2864cb12d4340` (git)
  - affected: `cd7f5ca33585918febe5e2f6dc090a21cfa775b0 to before ae583668f16d41fcc1b54f45848c1b6ac1d6669a` (git)
  - affected: `cd7f5ca33585918febe5e2f6dc090a21cfa775b0 to before b74aad23d99b279bb34d135795f39a6d8ecdc075` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `5.16`
  - unaffected: `before 5.16` (semver)
  - unaffected: `6.6.158 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.112 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.55 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.9 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 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

No source has published a CVSS score for this record yet.

- **CISA KEV:** Not listed.
- **EPSS:** 0.0020, the 9th percentile, on 8 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 18 Oct 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98509](https://www.cve.org/CVERecord?id=CVE-2026-98509)
- [NVD: CVE-2026-98509](https://nvd.nist.gov/vuln/detail/CVE-2026-98509)

### References from the CNA

- <https://git.kernel.org/stable/c/43bfe2b60c149bf6effda25f245a00509061fa15>
- <https://git.kernel.org/stable/c/4e333e2336138f4659b1d7a0371c499f80428612>
- <https://git.kernel.org/stable/c/8fa78900fd24247277c03dc7b8a2864cb12d4340>
- <https://git.kernel.org/stable/c/ae583668f16d41fcc1b54f45848c1b6ac1d6669a>
- <https://git.kernel.org/stable/c/b74aad23d99b279bb34d135795f39a6d8ecdc075>

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-2026-98509>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98509/>. Everything for agents: <https://agentprime.io/llms.txt>.