Vulnerability-Lookup

GHSA-9325-8XWG-7R9M

Vulnerability from github – Published: 2026-02-04 18:30 – Updated: 2026-02-06 18:30

Details

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

ALSA: ctxfi: Fix potential OOB access in audio mixer handling

In the audio mixer handling code of ctxfi driver, the conf field is used as a kind of loop index, and it's referred in the index callbacks (amixer_index() and sum_index()).

As spotted recently by fuzzers, the current code causes OOB access at those functions. | UBSAN: array-index-out-of-bounds in /build/reproducible-path/linux-6.17.8/sound/pci/ctxfi/ctamixer.c:347:48 | index 8 is out of range for type 'unsigned char [8]'

After the analysis, the cause was found to be the lack of the proper (re-)initialization of conj field.

This patch addresses those OOB accesses by adding the proper initializations of the loop indices.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-23076"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-02-04T17:16:18Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Fix potential OOB access in audio mixer handling\n\nIn the audio mixer handling code of ctxfi driver, the conf field is\nused as a kind of loop index, and it\u0027s referred in the index callbacks\n(amixer_index() and sum_index()).\n\nAs spotted recently by fuzzers, the current code causes OOB access at\nthose functions.\n| UBSAN: array-index-out-of-bounds in /build/reproducible-path/linux-6.17.8/sound/pci/ctxfi/ctamixer.c:347:48\n| index 8 is out of range for type \u0027unsigned char [8]\u0027\n\nAfter the analysis, the cause was found to be the lack of the proper\n(re-)initialization of conj field.\n\nThis patch addresses those OOB accesses by adding the proper\ninitializations of the loop indices.",
  "id": "GHSA-9325-8xwg-7r9m",
  "modified": "2026-02-06T18:30:30Z",
  "published": "2026-02-04T18:30:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23076"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/61006c540cbdedea83b05577dc7fb7fa18fe1276"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6524205326e0c1a21263b5c14e48e14ef7e449ae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/873e2360d247eeee642878fcc3398babff7e387c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8c1d09806e1441bc6a54b9a4f2818918046d5174"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8c42d11b0526a89192bd2f79facb4c60c8a1f38"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/afca7ff5d5d4d63a1acb95461f55ca9a729feedf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d77ba72558cd66704f0fb7e0969f697e87c0f71c"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-23076 (GCVE-0-2026-23076)

Vulnerability from cvelistv5 – Published: 2026-02-04 16:08 – Updated: 2026-02-09 08:38

Title

ALSA: ctxfi: Fix potential OOB access in audio mixer handling

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Fix potential OOB access in audio mixer handling In the audio mixer handling code of ctxfi driver, the conf field is used as a kind of loop index, and it's referred in the index callbacks (amixer_index() and sum_index()). As spotted recently by fuzzers, the current code causes OOB access at those functions. | UBSAN: array-index-out-of-bounds in /build/reproducible-path/linux-6.17.8/sound/pci/ctxfi/ctamixer.c:347:48 | index 8 is out of range for type 'unsigned char [8]' After the analysis, the cause was found to be the lack of the proper (re-)initialization of conj field. This patch addresses those OOB accesses by adding the proper initializations of the loop indices.

Severity ?

No CVSS data available.

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/6524205326e0c1a21…
	https://git.kernel.org/stable/c/afca7ff5d5d4d63a1…
	https://git.kernel.org/stable/c/8c1d09806e1441bc6…
	https://git.kernel.org/stable/c/a8c42d11b0526a891…
	https://git.kernel.org/stable/c/d77ba72558cd66704…
	https://git.kernel.org/stable/c/873e2360d247eeee6…
	https://git.kernel.org/stable/c/61006c540cbdedea8…

Impacted products

Vendor

Product

Version

Linux

Affected: 8cc72361481f00253f1e468ade5795427386d593 , < 6524205326e0c1a21263b5c14e48e14ef7e449ae (git)
Affected: 8cc72361481f00253f1e468ade5795427386d593 , < afca7ff5d5d4d63a1acb95461f55ca9a729feedf (git)
Affected: 8cc72361481f00253f1e468ade5795427386d593 , < 8c1d09806e1441bc6a54b9a4f2818918046d5174 (git)
Affected: 8cc72361481f00253f1e468ade5795427386d593 , < a8c42d11b0526a89192bd2f79facb4c60c8a1f38 (git)
Affected: 8cc72361481f00253f1e468ade5795427386d593 , < d77ba72558cd66704f0fb7e0969f697e87c0f71c (git)
Affected: 8cc72361481f00253f1e468ade5795427386d593 , < 873e2360d247eeee642878fcc3398babff7e387c (git)
Affected: 8cc72361481f00253f1e468ade5795427386d593 , < 61006c540cbdedea83b05577dc7fb7fa18fe1276 (git)

Linux

Affected: 2.6.31
Unaffected: 0 , < 2.6.31 (semver)
Unaffected: 5.10.249 , ≤ 5.10.* (semver)
Unaffected: 5.15.199 , ≤ 5.15.* (semver)
Unaffected: 6.1.162 , ≤ 6.1.* (semver)
Unaffected: 6.6.122 , ≤ 6.6.* (semver)
Unaffected: 6.12.68 , ≤ 6.12.* (semver)
Unaffected: 6.18.8 , ≤ 6.18.* (semver)
Unaffected: 6.19 , ≤ * (original_commit_for_fix)

Show details on NVD website

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Sightings

Author	Source	Type	Date

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-9325-8XWG-7R9M

CVE-2026-23076 (GCVE-0-2026-23076)

Tags

Sightings

Nomenclature