{
  "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-2023-52806",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-52806",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2024-05-21T15:31:17.025Z",
    "updatedAt": "2026-05-11T19:33:28.310Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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: hda: Fix possible null-ptr-deref when assigning a stream",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: hda: Fix possible null-ptr-deref when assigning a stream\n\nWhile AudioDSP drivers assign streams exclusively of HOST or LINK type,\nnothing blocks a user to attempt to assign a COUPLED stream. As\nsupplied substream instance may be a stub, what is the case when\ncode-loading, such scenario ends with null-ptr-deref.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7de25112de8222fd20564769e6c99dc9f9738a0b"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "758c7733cb821041f5fd403b7b97c0b95d319323"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2527775616f3638f4fd54649eba8c7b84d5e4250"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "25354bae4fc310c3928e8a42fda2d486f67745d7"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "631a96e9eb4228ff75fce7e72d133ca81194797e"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "43b91df291c8802268ab3cfd8fccfdf135800ed4"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "fe7c1a0c2b25c82807cb46fc3aadbf2664a682b0"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4a320da7f7cbdab2098b103c47f45d5061f42edd"
            },
            {
              "version": "14752412721c61d9ac1e8d8fb51d7148cb15f85b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f93dc90c2e8ed664985e366aa6459ac83cdab236"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.2",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.2"
            },
            {
              "version": "4.14.331",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.300",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.262",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.202",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.140",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.64",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.5.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.5.*"
            },
            {
              "version": "6.6.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.7",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}