CVE-2025-68205: ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver
Published Dec 16, 2025
·Updated
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 buildcontrols and buildpcms ops. A copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both buildcontrols and buildpcms 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 buildcontrols callback.
Fix it by passing the proper entries.
Affected Software
1 affected component
Linux Linux kernel (ALSA hda/hdmi nvhdmi-mcp)
Event History
Dec 16, 2025
CVE Published
via MITRE·01:48 PM
Data Sourced
via MITRE·01:48 PM
Description
Data Sourced
via NVD·02:15 PM
Description