---
id: CVE-2026-90068
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: dapm: Fix off-by-one check on the second enum channel

  The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches
  e->items, but it lets item[1] be equal t…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: dapm: Fix off-by-one check on the second enum channel

  The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches
  e->items, but it lets item[1] be equal t…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    57ab955bde747327fb2042516ae1b7192c30e881
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    806fa4e1f2bf73c54bc4b6360790ecc69d095ca5
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    496081b4edc1f6e662418831c5b14cddd8d7920c
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    faf539af1a595a26e5a081a4e512caee2bc2f4c5
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    32fc048391112559c34cb88d13594546939a4cd6
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    10a36512c21f861a03fba461a7ead09023df9c1b
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    55126ef66298e43c69f192acebae8c7cc0022cf6
  - >-
    Linux >= 3727b4968453dbab8fe18f979d67285eb6b66801 <
    14511c9b54ceeeef487409d73947c89ee8563590
  - Linux 3.15
published: '2026-09-17'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T17:16:55.697'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-90068'
references:
  - url: 'https://git.kernel.org/stable/c/10a36512c21f861a03fba461a7ead09023df9c1b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/14511c9b54ceeeef487409d73947c89ee8563590'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/32fc048391112559c34cb88d13594546939a4cd6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/496081b4edc1f6e662418831c5b14cddd8d7920c'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/55126ef66298e43c69f192acebae8c7cc0022cf6'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/57ab955bde747327fb2042516ae1b7192c30e881'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/806fa4e1f2bf73c54bc4b6360790ecc69d095ca5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/faf539af1a595a26e5a081a4e512caee2bc2f4c5'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-17T16:21:47.899Z'
epss: 0.0022
epssPercentile: 0.11036
---

## Overview

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

ASoC: dapm: Fix off-by-one check on the second enum channel

The snd_soc_dapm_put_enum_double() rejects item[0] once it reaches
e->items, but it lets item[1] be equal to it.  Both go on to
snd_soc_enum_item_to_val(), which indexes e->values with no bound of
its own, so an enum with a value table reads one element past the end.

The indexing arrived with the MUX consolidation, which relaxed the
item[1] check in the same hunk.  The value MUX handler it deleted used
>= there, and the snd_soc_put_enum_double() in soc-ops.c still does.

Only adav80x pairs a value table with two shifts, and its second
channel looks accidental, but the control does report two values.
Writing three into it reads off the end of adav80x_mux_values.  The
core catches that only under CONFIG_SND_CTL_INPUT_VALIDATION, which
defaults off.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.