{
  "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-2024-36489",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-36489",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-06-21T10:18:10.327Z",
    "updatedAt": "2026-10-15T00:42:32.133Z",
    "importedAt": "2026-10-24T01:57:11.582Z",
    "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": "tls: fix missing memory barrier in tls_init",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ntls: fix missing memory barrier in tls_init\n\nIn tls_init(), a write memory barrier is missing, and store-store\nreordering may cause NULL dereference in tls_{setsockopt,getsockopt}.\n\nCPU0                               CPU1\n-----                              -----\n// In tls_init()\n// In tls_ctx_create()\nctx = kzalloc()\nctx->sk_proto = READ_ONCE(sk->sk_prot) -(1)\n\n// In update_sk_prot()\nWRITE_ONCE(sk->sk_prot, tls_prots)     -(2)\n\n                                   // In sock_common_setsockopt()\n                                   READ_ONCE(sk->sk_prot)->setsockopt()\n\n                                   // In tls_{setsockopt,getsockopt}()\n                                   ctx->sk_proto->setsockopt()    -(3)\n\nIn the above scenario, when (1) and (2) are reordered, (3) can observe\nthe NULL value of ctx->sk_proto, causing NULL dereference.\n\nTo fix it, we rely on rcu_assign_pointer() which implies the release\nbarrier semantic. By moving rcu_assign_pointer() after ctx->sk_proto is\ninitialized, we can ensure that ctx->sk_proto are visible when\nchanging sk->sk_prot.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "d5bee7374b68de3c44586d46e9e61ffc97a1e886",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d72e126e9a36d3d33889829df8fc90100bb0e071"
            },
            {
              "version": "d5bee7374b68de3c44586d46e9e61ffc97a1e886",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c260a24cf1c4d30ea3646124f766ee46169280b"
            },
            {
              "version": "d5bee7374b68de3c44586d46e9e61ffc97a1e886",
              "status": "affected",
              "versionType": "git",
              "lessThan": "335c8f1566d8e44c384d16b450a18554896d4e8b"
            },
            {
              "version": "d5bee7374b68de3c44586d46e9e61ffc97a1e886",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ab67c2fd3d070a21914d0c31319d3858ab4e199c"
            },
            {
              "version": "d5bee7374b68de3c44586d46e9e61ffc97a1e886",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ef21007a7b581c7fe64d5a10c320880a033c837b"
            },
            {
              "version": "d5bee7374b68de3c44586d46e9e61ffc97a1e886",
              "status": "affected",
              "versionType": "git",
              "lessThan": "91e61dd7a0af660408e87372d8330ceb218be302"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.7",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.7"
            },
            {
              "version": "5.10.219",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.161",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.93",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.9.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.9.*"
            },
            {
              "version": "6.10",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}