---
id: CVE-2025-68205
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver

  After restructuring and splitting the HDMI codec driver code, each
  HDMI codec driver contains the own build_c…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver

  After restructuring and splitting the HDMI codec driver code, each
  HDMI codec driver contains the own build_c…
severity: none
published: '2025-12-16'
updated: '2026-10-14'
sourceUpdated: '2026-10-14T13:10:00.187'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-68205'
references:
  - url: 'https://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
tags:
  - nvd
epss: 0.00185
epssPercentile: 0.07487
ingestedAt: '2026-10-14T13:30:58.453Z'
---

## Overview

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

ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver

After restructuring and splitting the HDMI codec driver code, each
HDMI codec driver contains the own build_controls and build_pcms ops.
A copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both
build_controls and build_pcms are swapped.  Unfortunately both
callbacks have the very same form, and the compiler didn't complain
it, either.  This resulted in a NULL dereference because the PCM
instance hasn't been initialized at calling the build_controls
callback.

Fix it by passing the proper entries.

## Remediation

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