CVE-2026-80583

HighCVSS 7.8/10Last modified Aug 27, 2026

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

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= c39667ddcfc516fee084e449179d54430a558298, < dbc81b518f6936131bfd858be71cd4295136809c; >= c39667ddcfc516fee084e449179d54430a558298, < f84f2c81d792cf1e65571108a3bdd2c29e09e995; >= c39667ddcfc516fee084e449179d54430a558298, < 48b76879f5bfc8584b99052510ac645c6ade8d2b; >= c39667ddcfc516fee084e449179d54430a558298, < 2ed3601e9db08fbdb071bd3d7bd8f115d6d871b0; >= c39667ddcfc516fee084e449179d54430a558298, < b6baab796d11fb84c0e9444ffca91af5eab22c25; >= c39667ddcfc516fee084e449179d54430a558298, < 3ee3c26ceee562079596abc9bc3307dd56dab4ed; >= c39667ddcfc516fee084e449179d54430a558298, < 1ba381759e45d5d0442452cfa5c42e836191a568
LinuxLinux5.12

References

Timeline

Published
Aug 26, 2026
Last modified
Aug 27, 2026
NVD status
Received

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CVE-2026-80583: High severity, CVSS 7.8 | Vulnix