---
id: CVE-2026-74333
title: 'ASoC: amd: acp-sdw-legacy: Bound DAI link iteration'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: amd: acp-sdw-legacy: Bound DAI link iteration

  create_sdw_dailinks() walks soc_dais until it finds an entry with
  initialised cleared, but soc_dais is allocated wi…
severity: high
cvss: 8.4
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cvssSource: cna
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 2981d9b0789c44b7375e7d599caf71bd843afc9e <
    1279bdab5fa1f28c168e54215db506e87c6fac1e
  - >-
    Linux >= 2981d9b0789c44b7375e7d599caf71bd843afc9e <
    0230471eef5902207516851dcd47c559571dded2
  - >-
    Linux >= 2981d9b0789c44b7375e7d599caf71bd843afc9e <
    d49ecdf327cc91062d2f80996a163cf65fda1e60
  - Linux 6.13
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-16T18:53:46.521950Z'
published: '2026-08-15'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T18:55:33.681Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-74333'
references:
  - url: 'https://git.kernel.org/stable/c/1279bdab5fa1f28c168e54215db506e87c6fac1e'
  - url: 'https://git.kernel.org/stable/c/0230471eef5902207516851dcd47c559571dded2'
  - url: 'https://git.kernel.org/stable/c/d49ecdf327cc91062d2f80996a163cf65fda1e60'
tags:
  - cve.org
epss: 0.00194
epssPercentile: 0.08445
ingestedAt: '2026-10-16T19:46:24.376Z'
---

## Overview

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

ASoC: amd: acp-sdw-legacy: Bound DAI link iteration

create_sdw_dailinks() walks soc_dais until it finds an entry with
initialised cleared, but soc_dais is allocated with exactly num_ends
entries. If all entries are initialised, the loop reads past the end of
the array.

This was reported by KASAN:

  BUG: KASAN: slab-out-of-bounds in mc_probe+0x26b3/0x2774 [snd_acp_sdw_legacy_mach]
  Read of size 1

Pass the allocated entry count to create_sdw_dailinks() and stop before
reading past the array.

## Affected

- `Linux >= 2981d9b0789c44b7375e7d599caf71bd843afc9e < 1279bdab5fa1f28c168e54215db506e87c6fac1e`
- `Linux >= 2981d9b0789c44b7375e7d599caf71bd843afc9e < 0230471eef5902207516851dcd47c559571dded2`
- `Linux >= 2981d9b0789c44b7375e7d599caf71bd843afc9e < d49ecdf327cc91062d2f80996a163cf65fda1e60`
- `Linux 6.13`

## Remediation

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