# ALSA: usb-audio: fix OOB write in snd_usbmidi_us122l_output()

CVE record · `CVE-2026-90033`

- **Identifiers:** `CVE-2026-90033`
- **State:** Confirmed
- **Severity:** No CVSS score
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 19 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 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: `030a07e441296c372f946cd4065b5d831d8dc40c to before 5538daf2a5cc80ac3f3e913c0db045d92d995d40` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before a441a8e52148c91c2f2a91f42e3b9bc961a13a4b` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before 2dae0e3a59e31f78222279d544b98e747cd1fbff` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before 1d4add2b832b56f81bb0eab065ec35c610343018` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before de6d252f115be887a701c09a05cdb076f3a590c9` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before 9392a2c346762ffee8edd1ba8bac50d2e24a2ed7` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before 9d81885d97cba7796d1f8edc88f2499c8296f5b9` (git)
  - affected: `030a07e441296c372f946cd4065b5d831d8dc40c to before e4637ce34607f1733a34a57294966d26b263e626` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `2.6.28`
  - unaffected: `before 2.6.28` (semver)
  - unaffected: `5.10.270 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.221 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.188 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.157 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.110 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 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:** 0.0020, the 10th percentile, on 13 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 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-90033](https://www.cve.org/CVERecord?id=CVE-2026-90033)
- [NVD: CVE-2026-90033](https://nvd.nist.gov/vuln/detail/CVE-2026-90033)

### References from the CNA

- <https://git.kernel.org/stable/c/5538daf2a5cc80ac3f3e913c0db045d92d995d40>
- <https://git.kernel.org/stable/c/a441a8e52148c91c2f2a91f42e3b9bc961a13a4b>
- <https://git.kernel.org/stable/c/2dae0e3a59e31f78222279d544b98e747cd1fbff>
- <https://git.kernel.org/stable/c/1d4add2b832b56f81bb0eab065ec35c610343018>
- <https://git.kernel.org/stable/c/de6d252f115be887a701c09a05cdb076f3a590c9>
- <https://git.kernel.org/stable/c/9392a2c346762ffee8edd1ba8bac50d2e24a2ed7>
- <https://git.kernel.org/stable/c/9d81885d97cba7796d1f8edc88f2499c8296f5b9>
- <https://git.kernel.org/stable/c/e4637ce34607f1733a34a57294966d26b263e626>

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-2026-90033>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-90033/>. Everything for agents: <https://agentprime.io/llms.txt>.