CVE-2026-89944 (GCVE-0-2026-89944)
Vulnerability from cvelistv5
Published
2026-09-16 10:32
Modified
2026-10-21 12:49
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 6bae5ea9498926440ffc883f3dbceb0adc65e492
Version: 6bae5ea9498926440ffc883f3dbceb0adc65e492
Version: 6bae5ea9498926440ffc883f3dbceb0adc65e492
Version: 6bae5ea9498926440ffc883f3dbceb0adc65e492
Version: 6bae5ea9498926440ffc883f3dbceb0adc65e492
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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/soc/codecs/hdac_hda.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "4.20"
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              "status": "unaffected",
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              "versionType": "semver"
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              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.3",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
          "nodes": [
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              "cpeMatch": [
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              "negate": false,
              "operator": "OR"
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      "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": "2026-10-21T12:49:13.958Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/60b5824ae259ad15f7878e4e763ec31ba4db55f2"
        },
        {
          "url": "https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f"
        },
        {
          "url": "https://git.kernel.org/stable/c/e8ea01a0457080b0cc7c69c430c0ab65d84dc377"
        },
        {
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        },
        {
          "url": "https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268"
        }
      ],
      "title": "ASoC: hdac_hda: Fix hlink refcount leak on component registration failure",
      "x_generator": {
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-89944",
    "datePublished": "2026-09-16T10:32:31.253Z",
    "dateReserved": "2026-09-11T19:38:34.777Z",
    "dateUpdated": "2026-10-21T12:49:13.958Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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