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

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Published: 2026-08-26 · Updated: 2026-08-27

## Affected

- Linux: version range not reported
- Linux: 5.12

## 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

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
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## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/dbc81b518f6936131bfd858be71cd4295136809c
- https://git.kernel.org/stable/c/f84f2c81d792cf1e65571108a3bdd2c29e09e995
- https://git.kernel.org/stable/c/48b76879f5bfc8584b99052510ac645c6ade8d2b
- https://git.kernel.org/stable/c/2ed3601e9db08fbdb071bd3d7bd8f115d6d871b0
- https://git.kernel.org/stable/c/b6baab796d11fb84c0e9444ffca91af5eab22c25
- https://git.kernel.org/stable/c/3ee3c26ceee562079596abc9bc3307dd56dab4ed
- https://git.kernel.org/stable/c/1ba381759e45d5d0442452cfa5c42e836191a568

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