Vulnerability-Lookup

GHSA-629P-5P7M-6C4R

Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-02-04 18:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ALSA: ac97: fix a double free in snd_ac97_controller_register()

If ac97_add_adapter() fails, put_device() is the correct way to drop the device reference. kfree() is not required. Add kfree() if idr_alloc() fails and in ac97_adapter_release() to do the cleanup.

Found by code review.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2025-71192"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-04T16:16:18Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ac97: fix a double free in snd_ac97_controller_register()\n\nIf ac97_add_adapter() fails, put_device() is the correct way to drop\nthe device reference. kfree() is not required.\nAdd kfree() if idr_alloc() fails and in ac97_adapter_release() to do\nthe cleanup.\n\nFound by code review.",
  "id": "GHSA-629p-5p7m-6c4r",
  "modified": "2026-02-04T18:30:39Z",
  "published": "2026-02-04T18:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71192"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-71192 (GCVE-0-2025-71192)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:00 – Updated: 2026-02-09 08:36

Title

ALSA: ac97: fix a double free in snd_ac97_controller_register()

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: ac97: fix a double free in snd_ac97_controller_register() If ac97_add_adapter() fails, put_device() is the correct way to drop the device reference. kfree() is not required. Add kfree() if idr_alloc() fails and in ac97_adapter_release() to do the cleanup. Found by code review.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/c80f9b3349a99a9d5…
	https://git.kernel.org/stable/c/21f8bc5179bed91c3…
	https://git.kernel.org/stable/c/fcc04c92cbb5497ce…
	https://git.kernel.org/stable/c/cb73d37ac18bc1716…
	https://git.kernel.org/stable/c/830988b6cf197e6dc…

Impacted products

Vendor

Product

Version

Linux

Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < c80f9b3349a99a9d5b295f5bbc23f544c5995ad7 (git)
Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < 21f8bc5179bed91c3f946adb5e55d717b891960c (git)
Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < fcc04c92cbb5497ce67c58dd2f0001bb87f40396 (git)
Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < cb73d37ac18bc1716690ff5255a0ef1952827e9e (git)
Affected: 74426fbff66eea8e8d1f42c8238c268d1e63a832 , < 830988b6cf197e6dcffdfe2008c5738e6c6c3c0f (git)

Linux

Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 6.1.161 , ≤ 6.1.* (semver)
Unaffected: 6.6.121 , ≤ 6.6.* (semver)
Unaffected: 6.12.66 , ≤ 6.12.* (semver)
Unaffected: 6.18.6 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/ac97/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "c80f9b3349a99a9d5b295f5bbc23f544c5995ad7",
              "status": "affected",
              "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832",
              "versionType": "git"
            },
            {
              "lessThan": "21f8bc5179bed91c3f946adb5e55d717b891960c",
              "status": "affected",
              "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832",
              "versionType": "git"
            },
            {
              "lessThan": "fcc04c92cbb5497ce67c58dd2f0001bb87f40396",
              "status": "affected",
              "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832",
              "versionType": "git"
            },
            {
              "lessThan": "cb73d37ac18bc1716690ff5255a0ef1952827e9e",
              "status": "affected",
              "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832",
              "versionType": "git"
            },
            {
              "lessThan": "830988b6cf197e6dcffdfe2008c5738e6c6c3c0f",
              "status": "affected",
              "version": "74426fbff66eea8e8d1f42c8238c268d1e63a832",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/ac97/bus.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.15"
            },
            {
              "lessThan": "4.15",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.161",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.121",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.66",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.19",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.161",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.121",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.66",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19",
                  "versionStartIncluding": "4.15",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ac97: fix a double free in snd_ac97_controller_register()\n\nIf ac97_add_adapter() fails, put_device() is the correct way to drop\nthe device reference. kfree() is not required.\nAdd kfree() if idr_alloc() fails and in ac97_adapter_release() to do\nthe cleanup.\n\nFound by code review."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-09T08:36:17.217Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/c80f9b3349a99a9d5b295f5bbc23f544c5995ad7"
        },
        {
          "url": "https://git.kernel.org/stable/c/21f8bc5179bed91c3f946adb5e55d717b891960c"
        },
        {
          "url": "https://git.kernel.org/stable/c/fcc04c92cbb5497ce67c58dd2f0001bb87f40396"
        },
        {
          "url": "https://git.kernel.org/stable/c/cb73d37ac18bc1716690ff5255a0ef1952827e9e"
        },
        {
          "url": "https://git.kernel.org/stable/c/830988b6cf197e6dcffdfe2008c5738e6c6c3c0f"
        }
      ],
      "title": "ALSA: ac97: fix a double free in snd_ac97_controller_register()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-71192",
    "datePublished": "2026-02-04T16:00:23.044Z",
    "dateReserved": "2026-01-31T11:36:51.189Z",
    "dateUpdated": "2026-02-09T08:36:17.217Z",
    "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

GHSA-629P-5P7M-6C4R

CVE-2025-71192 (GCVE-0-2025-71192)

Tags

Sightings

Nomenclature