# dmaengine: idxd: fix possible wrong descriptor completion in llist_abort_desc()

CVE record · `CVE-2026-31436`

- **Identifiers:** `CVE-2026-31436`
- **State:** Confirmed
- **Severity:** CVSS 9.8 Critical
- **Critical:** Yes: CVSS 9+
- **CNA:** Linux
- **Weakness (CWE):** [CWE-758](https://cwe.mitre.org/data/definitions/758.html)
- **Tags:** [CWE-758](https://agentprime.io/advisories/tag/cwe-758.md)
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 22 Apr 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 22 Apr 2026, 13:53 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.

## Critical

Critical, because:

- CVSS score 9.8: 9.0 or more.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `aa8d18becc0c14aa3eb46d6d1b81450446e11b87 to before e21da2ad8844585040fe4b82be1ad2fe99d40074` (git)
  - affected: `aa8d18becc0c14aa3eb46d6d1b81450446e11b87 to before 82656e8daf8de00935ae91b91bed43f4d6e0d644` (git)
  - affected: `aa8d18becc0c14aa3eb46d6d1b81450446e11b87 to before 0e4f43779d550e559be13a5cdb763bad92c4cc99` (git)
  - affected: `aa8d18becc0c14aa3eb46d6d1b81450446e11b87 to before e1c9866173c5f8521f2d0768547a01508cb9ff27` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `6.8`
  - unaffected: `before 6.8` (semver)
  - unaffected: `6.12.80 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.21 to 6.18.*, inclusive` (semver)
  - unaffected: `6.19.11 to 6.19.*, inclusive` (semver)
  - unaffected: `7.0 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0046, the 39th percentile, on 6 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 22 Apr 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-31436](https://www.cve.org/CVERecord?id=CVE-2026-31436)
- [NVD: CVE-2026-31436](https://nvd.nist.gov/vuln/detail/CVE-2026-31436)

### References from the CNA

- <https://git.kernel.org/stable/c/e21da2ad8844585040fe4b82be1ad2fe99d40074>
- <https://git.kernel.org/stable/c/82656e8daf8de00935ae91b91bed43f4d6e0d644>
- <https://git.kernel.org/stable/c/0e4f43779d550e559be13a5cdb763bad92c4cc99>
- <https://git.kernel.org/stable/c/e1c9866173c5f8521f2d0768547a01508cb9ff27>

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-2026-31436>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-31436/>. Everything for agents: <https://agentprime.io/llms.txt>.