CVE-2025-68205
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.
Affected versions
Linux kernel versions
6.17
and later are affected. Fixed in
6.17.9,
6.18
and their respective stable series.
References
The following references provide additional information about CVE-2025-68205 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727
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PatchKernel patch commithttps://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b
Frequently asked questions
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What is CVE-2025-68205?
CVE-2025-68205 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.17 onward and has been patched in 6.17.9 and 6.18. CVE-2025-68205 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2025-68205?
Yes — CVE-2025-68205 has been patched. Fixed versions include 6.17.9 and 6.18. If you are running Linux kernel 6.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2025-68205 actively exploited?
No — CVE-2025-68205 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.