Vulnerability-Lookup

GHSA-4WGJ-G6WX-2P76

Vulnerability from github – Published: 2026-09-16 12:30 – Updated: 2026-09-16 12:30

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-89944"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-16T11:17:04Z",
    "severity": null
  },
  "details": "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.",
  "id": "GHSA-4wgj-g6wx-2p76",
  "modified": "2026-09-16T12:30:42Z",
  "published": "2026-09-16T12:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89944"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ad4892c4f5cb437a928a02f5b7d37d496aa9268"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7eef9ae3b4ef782557526dd8ba0c206f028d8c2f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e8ea01a0457080b0cc7c69c430c0ab65d84dc377"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

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

Vulnerability from cvelistv5 – Published: 2026-09-16 10:32 – Updated: 2026-09-16 10:32

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

Linux mitre root

References

4 references

URL	Tags
https://git.kernel.org/stable/c/7eef9ae3b4ef78255…
https://git.kernel.org/stable/c/e8ea01a0457080b0c…
https://git.kernel.org/stable/c/cb6b0b1a9d5a61ef8…
https://git.kernel.org/stable/c/6ad4892c4f5cb437a…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < 7eef9ae3b4ef782557526dd8ba0c206f028d8c2f (git) Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < e8ea01a0457080b0cc7c69c430c0ab65d84dc377 (git) Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < cb6b0b1a9d5a61ef841739d42c6211094e9c8e2c (git) Affected: 6bae5ea9498926440ffc883f3dbceb0adc65e492 , < 6ad4892c4f5cb437a928a02f5b7d37d496aa9268 (git)
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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Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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