Vulnerability-Lookup

GHSA-WG4G-3863-R8M4

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-07 03:31

Details

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

ALSA: ctxfi: Check the error for index mapping

The ctxfi driver blindly assumed a proper value returned from daio_device_index(), but it's not always true. Add a proper error check to deal with the error from the function.

Severity ?

5.5 (Medium)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-31777"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:41Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Check the error for index mapping\n\nThe ctxfi driver blindly assumed a proper value returned from\ndaio_device_index(), but it\u0027s not always true.  Add a proper error\ncheck to deal with the error from the function.",
  "id": "GHSA-wg4g-3863-r8m4",
  "modified": "2026-05-07T03:31:20Z",
  "published": "2026-05-01T15:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31777"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/277c6960d4ddb94d16198afd70c92c3d4593d131"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bc"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-31777 (GCVE-0-2026-31777)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-11 22:15

Title

ALSA: ctxfi: Check the error for index mapping

Summary

In the Linux kernel, the following vulnerability has been resolved: ALSA: ctxfi: Check the error for index mapping The ctxfi driver blindly assumed a proper value returned from daio_device_index(), but it's not always true. Add a proper error check to deal with the error from the function.

Severity ?

No CVSS data available.

Assigner

Linux

References

2 references

URL	Tags
https://git.kernel.org/stable/c/d4d3b8cbb70a2de24…
https://git.kernel.org/stable/c/277c6960d4ddb94d1…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 8cc72361481f00253f1e468ade5795427386d593 , < d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bc (git) Affected: 8cc72361481f00253f1e468ade5795427386d593 , < 277c6960d4ddb94d16198afd70c92c3d4593d131 (git)
Linux	Linux	Affected: 2.6.31 Unaffected: 0 , < 2.6.31 (semver) Unaffected: 6.19.12 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "sound/pci/ctxfi/ctdaio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bc",
              "status": "affected",
              "version": "8cc72361481f00253f1e468ade5795427386d593",
              "versionType": "git"
            },
            {
              "lessThan": "277c6960d4ddb94d16198afd70c92c3d4593d131",
              "status": "affected",
              "version": "8cc72361481f00253f1e468ade5795427386d593",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "sound/pci/ctxfi/ctdaio.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.31"
            },
            {
              "lessThan": "2.6.31",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.19.12",
                  "versionStartIncluding": "2.6.31",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "2.6.31",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: ctxfi: Check the error for index mapping\n\nThe ctxfi driver blindly assumed a proper value returned from\ndaio_device_index(), but it\u0027s not always true.  Add a proper error\ncheck to deal with the error from the function."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:15:36.531Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/d4d3b8cbb70a2de247cbfe99bdb232aef9ed59bc"
        },
        {
          "url": "https://git.kernel.org/stable/c/277c6960d4ddb94d16198afd70c92c3d4593d131"
        }
      ],
      "title": "ALSA: ctxfi: Check the error for index mapping",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-31777",
    "datePublished": "2026-05-01T14:15:05.127Z",
    "dateReserved": "2026-03-09T15:48:24.140Z",
    "dateUpdated": "2026-05-11T22:15:36.531Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-WG4G-3863-R8M4

CVE-2026-31777 (GCVE-0-2026-31777)

Tags

Sightings

Nomenclature