fkie_nvd - fkie_cve-2025-68205

FKIE_CVE-2025-68205

Vulnerability from fkie_nvd - Published: 2025-12-16 14:15 - Updated: 2025-12-18 15:08

Severity ?

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.

References

	URL	Tags
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727
	416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver\n\nAfter restructuring and splitting the HDMI codec driver code, each\nHDMI codec driver contains the own build_controls and build_pcms ops.\nA copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both\nbuild_controls and build_pcms are swapped.  Unfortunately both\ncallbacks have the very same form, and the compiler didn\u0027t complain\nit, either.  This resulted in a NULL dereference because the PCM\ninstance hasn\u0027t been initialized at calling the build_controls\ncallback.\n\nFix it by passing the proper entries."
    }
  ],
  "id": "CVE-2025-68205",
  "lastModified": "2025-12-18T15:08:25.907",
  "metrics": {},
  "published": "2025-12-16T14:15:53.377",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Awaiting Analysis"
}

CVE-2025-68205 (GCVE-0-2025-68205)

Vulnerability from cvelistv5 – Published: 2025-12-16 13:48 – Updated: 2025-12-16 13:48

Title

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

Summary

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/d2aed6fac11485281…
	https://git.kernel.org/stable/c/82420bd4e17bdaba8…

Impacted products

Vendor

Product

Version

Linux

Affected: ad781b550f9a8829e3dae4bd3d18c4a126a53d04 , < d2aed6fac1148528181affb781aa683d6569042b (git)
Affected: ad781b550f9a8829e3dae4bd3d18c4a126a53d04 , < 82420bd4e17bdaba8453fbf9e10c58c9ed0c9727 (git)

Linux

Affected: 6.17
Unaffected: 0 , < 6.17 (semver)
Unaffected: 6.17.9 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/hda/codecs/hdmi/nvhdmi-mcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d2aed6fac1148528181affb781aa683d6569042b",
              "status": "affected",
              "version": "ad781b550f9a8829e3dae4bd3d18c4a126a53d04",
              "versionType": "git"
            },
            {
              "lessThan": "82420bd4e17bdaba8453fbf9e10c58c9ed0c9727",
              "status": "affected",
              "version": "ad781b550f9a8829e3dae4bd3d18c4a126a53d04",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/hda/codecs/hdmi/nvhdmi-mcp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.17"
            },
            {
              "lessThan": "6.17",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.17.9",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.17",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver\n\nAfter restructuring and splitting the HDMI codec driver code, each\nHDMI codec driver contains the own build_controls and build_pcms ops.\nA copy-n-paste error put the wrong entries for nvhdmi-mcp driver; both\nbuild_controls and build_pcms are swapped.  Unfortunately both\ncallbacks have the very same form, and the compiler didn\u0027t complain\nit, either.  This resulted in a NULL dereference because the PCM\ninstance hasn\u0027t been initialized at calling the build_controls\ncallback.\n\nFix it by passing the proper entries."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:48:32.888Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d2aed6fac1148528181affb781aa683d6569042b"
        },
        {
          "url": "https://git.kernel.org/stable/c/82420bd4e17bdaba8453fbf9e10c58c9ed0c9727"
        }
      ],
      "title": "ALSA: hda/hdmi: Fix breakage at probing nvhdmi-mcp driver",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68205",
    "datePublished": "2025-12-16T13:48:32.888Z",
    "dateReserved": "2025-12-16T13:41:40.255Z",
    "dateUpdated": "2025-12-16T13:48:32.888Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

FKIE_CVE-2025-68205

CVE-2025-68205 (GCVE-0-2025-68205)

Tags

Sightings

Nomenclature