---
id: CVE-2023-54233
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: SOF: avoid a NULL dereference with unsupported widgets

  If an IPC4 topology contains an unsupported widget, its .module_info
  field won't be set, then sof_ipc4_rou…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ASoC: SOF: avoid a NULL dereference with unsupported widgets

  If an IPC4 topology contains an unsupported widget, its .module_info
  field won't be set, then sof_ipc4_rou…
severity: none
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 3acd527089463742a3dd95e274d53c2fdd834716 <
    d42fe2721111138d7656d4f621f38c171979c8a0
  - >-
    Linux >= 3acd527089463742a3dd95e274d53c2fdd834716 <
    170818974e9732506195c6302743856cc8bdfd6f
  - >-
    Linux >= 3acd527089463742a3dd95e274d53c2fdd834716 <
    e3720f92e0237921da537e47a0b24e27899203f8
  - Linux 6.0
published: '2025-12-30'
updated: '2026-10-03'
sourceUpdated: '2026-10-03T11:17:29.700'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2023-54233'
references:
  - url: 'https://git.kernel.org/stable/c/170818974e9732506195c6302743856cc8bdfd6f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d42fe2721111138d7656d4f621f38c171979c8a0'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/e3720f92e0237921da537e47a0b24e27899203f8'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
  - cve.org
epss: 0.00185
epssPercentile: 0.0733
ingestedAt: '2026-10-03T11:43:42.113Z'
---

## Overview

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

ASoC: SOF: avoid a NULL dereference with unsupported widgets

If an IPC4 topology contains an unsupported widget, its .module_info
field won't be set, then sof_ipc4_route_setup() will cause a kernel
Oops trying to dereference it. Add a check for such cases.

## Remediation

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