# crypto: mxs-dcp - fix source scatterlist length access

CVE record · `CVE-2026-80831`

- **Identifiers:** `CVE-2026-80831`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 4 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 15:54 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: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before fd0f211b27a6ec2ebd8c315683401b43adcc5511` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before 04201dcc88b26eac52f736e39727fc5c420b7257` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before e72a795df521cb65b7c4705cc11078cdacfaa2f4` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before 1537bd55b4f842565068c54b47cd2ae1777d5f8f` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before da14fae5203b72ca71ccfa9af8de9249e40d533a` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before 182f16a20d329a1c818d51dad57d9bf43d356c7c` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before 0e9edb108a63bbbef952dfcbc597e34ed9c1fb74` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before 6ef9a4afb52cb102ab038cd42352c142d8505d09` (git)
  - affected: `15b59e7c3733f90ff1f7dd66ad77ae1c90bcdff5 to before c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `3.14`
  - unaffected: `before 3.14` (semver)
  - unaffected: `5.10.269 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.220 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.187 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.156 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.108 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.49 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.13 to 7.1.*, inclusive` (semver)
  - unaffected: `7.2.3 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:** 0.0016, the 5th percentile, on 14 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 4 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-80831](https://www.cve.org/CVERecord?id=CVE-2026-80831)
- [NVD: CVE-2026-80831](https://nvd.nist.gov/vuln/detail/CVE-2026-80831)

### References from the CNA

- <https://git.kernel.org/stable/c/fd0f211b27a6ec2ebd8c315683401b43adcc5511>
- <https://git.kernel.org/stable/c/04201dcc88b26eac52f736e39727fc5c420b7257>
- <https://git.kernel.org/stable/c/e72a795df521cb65b7c4705cc11078cdacfaa2f4>
- <https://git.kernel.org/stable/c/1537bd55b4f842565068c54b47cd2ae1777d5f8f>
- <https://git.kernel.org/stable/c/da14fae5203b72ca71ccfa9af8de9249e40d533a>
- <https://git.kernel.org/stable/c/182f16a20d329a1c818d51dad57d9bf43d356c7c>
- <https://git.kernel.org/stable/c/0e9edb108a63bbbef952dfcbc597e34ed9c1fb74>
- <https://git.kernel.org/stable/c/6ef9a4afb52cb102ab038cd42352c142d8505d09>
- <https://git.kernel.org/stable/c/c5bcb084a9871e5b62afb5f48b60adfa13b5d9f8>

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-2026-80831>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80831/>. Everything for agents: <https://agentprime.io/llms.txt>.