CVE-2025-68205
N/A
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_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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | ad781b550f9a8829e3dae4bd3d18c4a126a53d04 < d2aed6fac1148528181affb781aa683d6569042b | affected |
| Linux | Linux | ad781b550f9a8829e3dae4bd3d18c4a126a53d04 < 82420bd4e17bdaba8453fbf9e10c58c9ed0c9727 | affected |
| Linux | Linux | 6.17 | affected |
| Linux | Linux | 0 < 6.17 | unaffected |
| Linux | Linux | 6.17.9 <= 6.17.* | unaffected |
| Linux | Linux | 6.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b
- https://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727
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