# ALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output()

CVE record · `CVE-2026-80829`

- **Identifiers:** `CVE-2026-80829`
- **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: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 558fc4485ecc704edfe7876d6cebae4738ff7ef8` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 9c8212436631b0063cb021e9f58df438e3db84d0` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before e9c00d7533f99aa9833c4b598f47e3b3202fdb9a` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 94e4562fcc81badd1d467ddfb88c27e4fae974c2` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 7639ec9755d3ec0ec8cd7c0fdd2c3d3997434870` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 91919b3b99ab7ce3d7dbb39fcf7c6c742a663c0c` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 7f00dbddb51f4f74325cdc7c3f6b19fb3392481a` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1074c2306901b44ebcb83855583c6776e1e392ea` (git)
  - affected: `1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to before 1035a8f63bae28e498b0e7b5ac91d749844a7158` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.12`
  - unaffected: `before 2.6.12` (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:** 0.0019, the 9th 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-2026-80829](https://www.cve.org/CVERecord?id=CVE-2026-80829)
- [NVD: CVE-2026-80829](https://nvd.nist.gov/vuln/detail/CVE-2026-80829)

### References from the CNA

- <https://git.kernel.org/stable/c/558fc4485ecc704edfe7876d6cebae4738ff7ef8>
- <https://git.kernel.org/stable/c/9c8212436631b0063cb021e9f58df438e3db84d0>
- <https://git.kernel.org/stable/c/e9c00d7533f99aa9833c4b598f47e3b3202fdb9a>
- <https://git.kernel.org/stable/c/94e4562fcc81badd1d467ddfb88c27e4fae974c2>
- <https://git.kernel.org/stable/c/7639ec9755d3ec0ec8cd7c0fdd2c3d3997434870>
- <https://git.kernel.org/stable/c/91919b3b99ab7ce3d7dbb39fcf7c6c742a663c0c>
- <https://git.kernel.org/stable/c/7f00dbddb51f4f74325cdc7c3f6b19fb3392481a>
- <https://git.kernel.org/stable/c/1074c2306901b44ebcb83855583c6776e1e392ea>
- <https://git.kernel.org/stable/c/1035a8f63bae28e498b0e7b5ac91d749844a7158>

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-2026-80829>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-80829/>. Everything for agents: <https://agentprime.io/llms.txt>.