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

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

[Greg Kroah-Hartman]

From: Greg Kroah-Hartman <gregkh@kernel.org>

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

The Linux kernel CVE team has assigned CVE-2026-80583 to this issue.


Affected and fixed versions
===========================

	Issue introduced in 5.12 with commit c39667ddcfc516fee084e449179d54430a558298 and fixed in 7.1.10 with commit 3ee3c26ceee562079596abc9bc3307dd56dab4ed
	Issue introduced in 5.12 with commit c39667ddcfc516fee084e449179d54430a558298 and fixed in 7.2 with commit 1ba381759e45d5d0442452cfa5c42e836191a568

Please see https://www.kernel.org for a full list of currently supported
kernel versions by the kernel community.

Unaffected versions might change over time as fixes are backported to
older supported kernel versions.  The official CVE entry at
	https://cve.org/CVERecord/?id=CVE-2026-80583
will be updated if fixes are backported, please check that for the most
up to date information about this issue.


Affected files
==============

The file(s) affected by this issue are:
	sound/soc/codecs/lpass-tx-macro.c


Mitigation
==========

The Linux kernel CVE team recommends that you update to the latest
stable kernel version for this, and many other bugfixes.  Individual
changes are never tested alone, but rather are part of a larger kernel
release.  Cherry-picking individual commits is not recommended or
supported by the Linux kernel community at all.  If however, updating to
the latest release is impossible, the individual changes to resolve this
issue can be found at these commits:
	https://git.kernel.org/stable/c/3ee3c26ceee562079596abc9bc3307dd56dab4ed
	https://git.kernel.org/stable/c/1ba381759e45d5d0442452cfa5c42e836191a568