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CVE-2026-89944 (GCVE-0-2026-89944)

Vulnerability from cvelistv5 – Published: 2026-09-16 10:32 – Updated: 2026-09-16 10:32
VLAI
Title
ASoC: hdac_hda: Fix hlink refcount leak on component registration failure
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: hdac_hda: Fix hlink refcount leak on component registration failure hdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get() before registering the ASoC component. If component registration fails, the function returns without dropping the link reference. Always call snd_hdac_ext_bus_link_put() after the registration attempt so the reference taken during probe is balanced on both success and failure.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < 7eef9ae3b4ef782557526dd8ba0c206f028d8c2f (git)
Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < e8ea01a0457080b0cc7c69c430c0ab65d84dc377 (git)
Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c (git)
Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < 6ad4892c4f5cb437a928a02f5b7d37d496aa9268 (git)
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Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 6.12.110 , ≤ 6.12.* (semver)
Unaffected: 6.18.51 , ≤ 6.18.* (semver)
Unaffected: 7.2.5 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc1 , ≤ * (original_commit_for_fix)
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{
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          "product": "Linux",
          "programFiles": [
            "sound/soc/codecs/hdac_hda.c"
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          "versions": [
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                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: hdac_hda: Fix hlink refcount leak on component registration failure\n\nhdac_hda_dev_probe() gets the HDA link with snd_hdac_ext_bus_link_get()\nbefore registering the ASoC component. If component registration fails,\nthe function returns without dropping the link reference.\n\nAlways call snd_hdac_ext_bus_link_put() after the registration attempt so\nthe reference taken during probe is balanced on both success and failure."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-16T10:32:31.253Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
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          "url": "https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f"
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          "url": "https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268"
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      ],
      "title": "ASoC: hdac_hda: Fix hlink refcount leak on component registration failure",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89944",
    "datePublished": "2026-09-16T10:32:31.253Z",
    "dateReserved": "2026-09-11T19:38:34.777Z",
    "dateUpdated": "2026-09-16T10:32:31.253Z",
    "state": "PUBLISHED"
  },
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  }
}



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