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CVE-2026-74291 (GCVE-0-2026-74291)

Vulnerability from cvelistv5 – Published: 2026-08-15 05:57 – Updated: 2026-08-17 05:16
VLAI
Title
ASoC: topology: Check PCM and DAI name strings before use
Summary
In the Linux kernel, the following vulnerability has been resolved: ASoC: topology: Check PCM and DAI name strings before use Topology objects store several PCM and DAI names in fixed-size UAPI arrays. Other topology parser paths validate these fields with bounded strnlen() checks before using them as C strings, but the PCM and DAI paths still pass some fixed-size arrays directly to strlen(), devm_kstrdup(), DAI lookup, and diagnostic prints. A malformed topology blob with a non-NUL-terminated PCM, DAI, or stream capability name can therefore make the parser read past the end of the fixed-size field. Reject unterminated PCM and DAI name fields before consuming them as C strings.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 64527e8a352968bda529f01df1c9dd5fe581ff04 , < ba37b62ed0a443b8e23f53a7477e7f2537fd34c7 (git)
Affected: 64527e8a352968bda529f01df1c9dd5fe581ff04 , < b7e44d1986d6671342c19b82192189ca5db5dab7 (git)
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Linux Linux Affected: 4.6
Unaffected: 0 , < 4.6 (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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    "datePublished": "2026-08-15T05:57:57.631Z",
    "dateReserved": "2026-08-15T05:44:03.881Z",
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    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-20T15:22:20+00:00",
      "cve": "CVE-2026-74291",
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      "product_status:known_affected": "232",
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      "source": "Red Hat CSAF VEX",
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      "title": "kernel: ASoC: topology: Check PCM and DAI name strings before use",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-74291.json",
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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.
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  • 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.


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