CVE-2026-98093 (GCVE-0-2026-98093)

Vulnerability from cvelistv5 – Published: 2026-09-25 10:24 – Updated: 2026-09-25 10:24
VLAI
Title
ASoC: fsl_micfil: balance mclk enable/disable
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: fsl_micfil: balance mclk enable/disable hw_params() enables mclk unconditionally and hw_free() disables it unconditionally, but the PCM core does not guarantee 1:1 pairing: hw_free() can run without hw_params(), and hw_params() can be called multiple times from the SETUP state. This triggers an "already disabled" WARN() in the first case and leaks an enable reference in the second, leaving the clock ungateable. Guard both sides with the existing mclk_flag, as fsl_sai.c does with mclk_streams.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b47024dc624bcffb89d238f4a5b490363cea2a1e , < 470db2026a435b79f7ecb4d65523ea16a99d55d8 (git)
Affected: b47024dc624bcffb89d238f4a5b490363cea2a1e , < fa1bbe3534499dd89d3b0b941d6dd4ddb70c31b5 (git)
Affected: b47024dc624bcffb89d238f4a5b490363cea2a1e , < d3dbccfe6afa7b9a6a7ed65cfaa76a47fa050a56 (git)
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Linux Linux Affected: 6.13
Unaffected: 0 , < 6.13 (semver)
Unaffected: 6.18.53 , ≤ 6.18.* (semver)
Unaffected: 7.2.7 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc3 , ≤ * (original_commit_for_fix)
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{
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          "programFiles": [
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              "operator": "OR"
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl_micfil: balance mclk enable/disable\n\nhw_params() enables mclk unconditionally and hw_free() disables it\nunconditionally, but the PCM core does not guarantee 1:1 pairing:\nhw_free() can run without hw_params(), and hw_params() can be called\nmultiple times from the SETUP state. This triggers an \"already\ndisabled\" WARN() in the first case and leaks an enable reference in\nthe second, leaving the clock ungateable.\n\nGuard both sides with the existing mclk_flag, as fsl_sai.c does with\nmclk_streams."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-09-25T10:24:25.285Z",
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    "dateReserved": "2026-09-25T10:19:56.076Z",
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        "descriptions": [
          {
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            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: fsl_micfil: balance mclk enable/disable\n\nhw_params() enables mclk unconditionally and hw_free() disables it\nunconditionally, but the PCM core does not guarantee 1:1 pairing:\nhw_free() can run without hw_params(), and hw_params() can be called\nmultiple times from the SETUP state. This triggers an \"already\ndisabled\" WARN() in the first case and leaks an enable reference in\nthe second, leaving the clock ungateable.\n\nGuard both sides with the existing mclk_flag, as fsl_sai.c does with\nmclk_streams."
          }
        ],
        "id": "CVE-2026-98093",
        "lastModified": "2026-09-25T11:17:39.023",
        "metrics": {},
        "published": "2026-09-25T11:17:39.023",
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        "vulnStatus": "Received"
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    }
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}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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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.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.