# CVE-2025-68205: linux: In the Linux kernel, the following vulnerability has been resolved:  ALSA: hda/hdmi: Fix breakage at probing nvhdmi-m...

CVE-2025-68205 is fixed in linux on 1 platform by DEBIAN-CVE-2025-68205 (version 6.17.9-1), released December 16, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-68205
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 16, 2025

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 6.17.9-1 | [DEBIAN-CVE-2025-68205](https://patchblox.com/security/data/fix/linux/debian-cve-2025-68205.md) | Dec 16, 2025 |

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