# drm/virtio: use the DMA API for resource backing on Xen

CVE record · `CVE-2026-98156`

- **Identifiers:** `CVE-2026-98156`
- **State:** Confirmed
- **Severity:** CVSS 7.8 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 25 Sept 2026
- **Updated:** 21 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 25 Sept 2026, 10:36 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: `a3b815f09bb846255c458c181b8a5b1cc66891b4 to before 32e999ccf5f6453b3b4df8264ff1b03c6720292f` (git)
  - affected: `a3b815f09bb846255c458c181b8a5b1cc66891b4 to before 3f130cc6826fabf50e01fe8e4ff3ed1fcae50d36` (git)
  - affected: `a3b815f09bb846255c458c181b8a5b1cc66891b4 to before 93c557e947ef0040004b1ac6a1c1265d79a957e1` (git)
  - affected: `a3b815f09bb846255c458c181b8a5b1cc66891b4 to before 455184dbe9652d01470d3c5cf5edd09a7a673a99` (git)
  - affected: `a3b815f09bb846255c458c181b8a5b1cc66891b4 to before 6a736d2f9d0c6e6217fe7532bc4c50ceca71db78` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.20`
  - unaffected: `before 4.20` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.114 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.53 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.7 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0014, the 3rd percentile, on 11 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 25 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-98156](https://www.cve.org/CVERecord?id=CVE-2026-98156)
- [NVD: CVE-2026-98156](https://nvd.nist.gov/vuln/detail/CVE-2026-98156)

### References from the CNA

- <https://git.kernel.org/stable/c/32e999ccf5f6453b3b4df8264ff1b03c6720292f>
- <https://git.kernel.org/stable/c/3f130cc6826fabf50e01fe8e4ff3ed1fcae50d36>
- <https://git.kernel.org/stable/c/93c557e947ef0040004b1ac6a1c1265d79a957e1>
- <https://git.kernel.org/stable/c/455184dbe9652d01470d3c5cf5edd09a7a673a99>
- <https://git.kernel.org/stable/c/6a736d2f9d0c6e6217fe7532bc4c50ceca71db78>

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-2026-98156>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

---

The web page: <https://agentprime.io/advisories/CVE-2026-98156/>. Everything for agents: <https://agentprime.io/llms.txt>.