# CVE-2026-80583: ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses

> Incorrect data type access in the LPASS TX macro audio driver causes control read failures on debug-enabled 64-bit kernels.

- **Severity:** High 7.8 (`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 26 Aug 2026
- **Updated:** 27 Aug 2026
- **Also known as:** AZL-97680, BELL-CVE-2026-80583, DEBIAN-CVE-2026-80583, GHSA-4jrc-26j5-hv3j, UBUNTU-CVE-2026-80583

## What is CVE-2026-80583?

CVE-2026-80583 is a high-severity vulnerability in Linux, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

In the Linux kernel, the following vulnerability has been resolved:

ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses

The "DEC0 MODE" to "DEC7 MODE" controls are enumerated, but
tx_macro_dec_mode_get() and tx_macro_dec_mode_put() access their
value through ucontrol->value.integer.value[0] (a long) instead of
ucontrol->value.enumerated.item[0] (an unsigned int).

This same pattern was fixed in the sibling drivers by
commit bcfe5f76cc40 ("ASoC: codecs: rx-macro: fix accessing array
out of bounds for enum type") and
commit 0ea5eff7c606 ("ASoC: codecs: va-macro: fix accessing array
out of bounds for enum type"), but tx-macro was missed.

On 64-bit kernels built with CONFIG_SND_CTL_DEBUG, the elem value
sanity check catches the 4 bytes written past the enumerated item
and every read of these controls fails with -EINVAL:

  snd-sm8250 sound: control 2:0:0:DEC0 MODE:0: access overflow

## Which versions are affected by CVE-2026-80583?


## How do I fix CVE-2026-80583?

Apply the vendor's patch.

## Is CVE-2026-80583 being exploited?

There is no known exploitation of CVE-2026-80583 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-80583 and fix it if it is affected.

What it is: CVE-2026-80583 is a high-severity vulnerability in Linux, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-80583 in the wild and no public exploit code.

Affected product: Linux. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-80583/ (Markdown: https://insights.sbomify.com/CVE-2026-80583/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-80583
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-80583
- OSV: https://osv.dev/vulnerability/CVE-2026-80583

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-80583/
Summaries are generated and may contain mistakes; the official description above is the record.