CVE-2026-80583

/// Technical 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

/// Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

/// References