{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2024-56531",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-56531",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-12-27T14:11:14.161Z",
    "updatedAt": "2026-08-05T11:44:54.186Z",
    "importedAt": "2026-10-24T01:57:20.494Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "ALSA: caiaq: Use snd_card_free_when_closed() at disconnection",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: caiaq: Use snd_card_free_when_closed() at disconnection\n\nThe USB disconnect callback is supposed to be short and not too-long\nwaiting.  OTOH, the current code uses snd_card_free() at\ndisconnection, but this waits for the close of all used fds, hence it\ncan take long.  It eventually blocks the upper layer USB ioctls, which\nmay trigger a soft lockup.\n\nAn easy workaround is to replace snd_card_free() with\nsnd_card_free_when_closed().  This variant returns immediately while\nthe release of resources is done asynchronously by the card device\nrelease at the last close.\n\nThis patch also splits the code to the disconnect and the free phases;\nthe former is called immediately at the USB disconnect callback while\nthe latter is called from the card destructor.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3993edf44d3df7b6e8c753eac6ac8783473fcbab"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ebad462eec93b0f701dfe4de98990e7355283801"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4dd821dcbfcecf7af6a08370b0b217cde2818acf"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cadf1d8e9ddcd74584ec961aeac14ac549b261d8"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "237f3faf0177bdde728fa3106d730d806436aa4d"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4507a8b9b30344c5ddd8219945f446d47e966a6d"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "dd0de8cb708951cebf727aa045e8242ba651bb52"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a3f9314752dbb6f6aa1f0f2b4c58243bda800738"
            },
            {
              "version": "523f1dce37434a9a6623bf46e7893e2b4b10ac3c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b04dcbb7f7b1908806b7dc22671cdbe78ff2b82c"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.22",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.22"
            },
            {
              "version": "4.19.325",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.287",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.231",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.174",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.120",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.64",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.11.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.11.*"
            },
            {
              "version": "6.12.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.13",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}