# serial: msm: Disable DMA for kernel console UART

CVE record · `CVE-2026-80886`

- **Identifiers:** `CVE-2026-80886`
- **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:** 4 Sept 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 4 Sept 2026, 16:49 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: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before f58e568dc308c8e13f7730c8de2da5ed514e540d` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before bb4296de5b538b575978c588cb3738ab8524d01a` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before 6acea62738ed4cae6746483026706a773b44dad7` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before abc1926c88c189e5d698b91ed6890e09ab5c321d` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before 2727744ccb5ca59090451451ee94f530b1be04a5` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before d354716245192de2d203f2b35f22ab8dc13595e2` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before e3b42e326f4f30efcdc90bad5f5ba37e1cd91a47` (git)
  - affected: `3a878c430fd6eb4f8587f9ebd187f773bf85d1d6 to before 22dd2777e6c180e1c945b00f6d18550979436324` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.4`
  - unaffected: `before 4.4` (semver)
  - unaffected: `5.10.261 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.212 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.178 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.145 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.97 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.40 to 6.18.*, inclusive` (semver)
  - unaffected: `7.1.5 to 7.1.*, 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

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

- **CISA KEV:** Not listed.
- **EPSS:** 0.0022, the 12th 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-2026-80886](https://www.cve.org/CVERecord?id=CVE-2026-80886)
- [NVD: CVE-2026-80886](https://nvd.nist.gov/vuln/detail/CVE-2026-80886)

### References from the CNA

- <https://git.kernel.org/stable/c/f58e568dc308c8e13f7730c8de2da5ed514e540d>
- <https://git.kernel.org/stable/c/bb4296de5b538b575978c588cb3738ab8524d01a>
- <https://git.kernel.org/stable/c/6acea62738ed4cae6746483026706a773b44dad7>
- <https://git.kernel.org/stable/c/abc1926c88c189e5d698b91ed6890e09ab5c321d>
- <https://git.kernel.org/stable/c/2727744ccb5ca59090451451ee94f530b1be04a5>
- <https://git.kernel.org/stable/c/d354716245192de2d203f2b35f22ab8dc13595e2>
- <https://git.kernel.org/stable/c/e3b42e326f4f30efcdc90bad5f5ba37e1cd91a47>
- <https://git.kernel.org/stable/c/22dd2777e6c180e1c945b00f6d18550979436324>

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-2026-80886>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80886/>. Everything for agents: <https://agentprime.io/llms.txt>.