Vulnerability-Lookup

GHSA-VFG9-HVPM-5MGJ

Vulnerability from github – Published: 2026-07-19 15:30 – Updated: 2026-07-19 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

ASoC: rsnd: Fix potential out-of-bounds access of component_dais[]

component_dais[RSND_MAX_COMPONENT] is initially zero-initialized and later populated in rsnd_dai_of_node(). However, the existing boundary check: if (i >= RSND_MAX_COMPONENT)

does not guarantee that the last valid element remains zero. As a result, the loop can rely on component_dais[RSND_MAX_COMPONENT] being zero, which may lead to an out-of-bounds access.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-63838"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-19T15:16:50Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nASoC: rsnd: Fix potential out-of-bounds access of component_dais[]\n\ncomponent_dais[RSND_MAX_COMPONENT] is initially zero-initialized\nand later populated in rsnd_dai_of_node(). However, the existing boundary check:\n  if (i \u003e= RSND_MAX_COMPONENT)\n\ndoes not guarantee that the last valid element remains zero. As a result,\nthe loop can rely on component_dais[RSND_MAX_COMPONENT] being zero,\nwhich may lead to an out-of-bounds access.\n\nFound by Linux Verification Center (linuxtesting.org) with SVACE.",
  "id": "GHSA-vfg9-hvpm-5mgj",
  "modified": "2026-07-19T15:30:26Z",
  "published": "2026-07-19T15:30:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63838"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15e7b2ac2455995a6af02b9d3da7a432837aaf72"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9f1daac27ca28e98c8c0e4450de42bb68d547250"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a62b3e6e42359a79158c134e3cf5c74fe160c3f5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f9e437cddf6cf9e603bdaefe148c1f4792aaf39c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-63838 (GCVE-0-2026-63838)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:04 – Updated: 2026-07-19 14:04

Title

ASoC: rsnd: Fix potential out-of-bounds access of component_dais[]

Summary

In the Linux kernel, the following vulnerability has been resolved: ASoC: rsnd: Fix potential out-of-bounds access of component_dais[] component_dais[RSND_MAX_COMPONENT] is initially zero-initialized and later populated in rsnd_dai_of_node(). However, the existing boundary check: if (i >= RSND_MAX_COMPONENT) does not guarantee that the last valid element remains zero. As a result, the loop can rely on component_dais[RSND_MAX_COMPONENT] being zero, which may lead to an out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Severity

No CVSS data available.

Assigner

Linux

References

5 references

URL	Tags
https://git.kernel.org/stable/c/9f1daac27ca28e98c…
https://git.kernel.org/stable/c/15e7b2ac2455995a6…
https://git.kernel.org/stable/c/134c61925e9e9ee0f…
https://git.kernel.org/stable/c/a62b3e6e42359a791…
https://git.kernel.org/stable/c/f9e437cddf6cf9e60…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac , < 9f1daac27ca28e98c8c0e4450de42bb68d547250 (git) Affected: 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac , < 15e7b2ac2455995a6af02b9d3da7a432837aaf72 (git) Affected: 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac , < 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5 (git) Affected: 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac , < a62b3e6e42359a79158c134e3cf5c74fe160c3f5 (git) Affected: 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac , < f9e437cddf6cf9e603bdaefe148c1f4792aaf39c (git)
Linux	Linux	Affected: 6.6 Unaffected: 0 , < 6.6 (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
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          "programFiles": [
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              "versionType": "semver"
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            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
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      ],
      "cpeApplicability": [
        {
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              "cpeMatch": [
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    "cveId": "CVE-2026-63838",
    "datePublished": "2026-07-19T14:04:34.454Z",
    "dateReserved": "2026-07-19T07:54:57.015Z",
    "dateUpdated": "2026-07-19T14:04:34.454Z",
    "state": "PUBLISHED"
  },
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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.

Action not permitted

GHSA-VFG9-HVPM-5MGJ

CVE-2026-63838 (GCVE-0-2026-63838)

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Sightings

Nomenclature