{
  "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-2023-52924",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-52924",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-02-05T09:07:55.418Z",
    "updatedAt": "2026-05-11T19:35:43.170Z",
    "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": "netfilter: nf_tables: don't skip expired elements during walk",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfilter: nf_tables: don't skip expired elements during walk\n\nThere is an asymmetry between commit/abort and preparation phase if the\nfollowing conditions are met:\n\n1. set is a verdict map (\"1.2.3.4 : jump foo\")\n2. timeouts are enabled\n\nIn this case, following sequence is problematic:\n\n1. element E in set S refers to chain C\n2. userspace requests removal of set S\n3. kernel does a set walk to decrement chain->use count for all elements\n   from preparation phase\n4. kernel does another set walk to remove elements from the commit phase\n   (or another walk to do a chain->use increment for all elements from\n    abort phase)\n\nIf E has already expired in 1), it will be ignored during list walk, so its use count\nwon't have been changed.\n\nThen, when set is culled, ->destroy callback will zap the element via\nnf_tables_set_elem_destroy(), but this function is only safe for\nelements that have been deactivated earlier from the preparation phase:\nlack of earlier deactivate removes the element but leaks the chain use\ncount, which results in a WARN splat when the chain gets removed later,\nplus a leak of the nft_chain structure.\n\nUpdate pipapo_get() not to skip expired elements, otherwise flush\ncommand reports bogus ENOENT errors.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "94313a196b44184b5b52c1876da6a537701b425a"
            },
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "1da4874d05da1526b11b82fc7f3c7ac38749ddf8"
            },
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b15ea4017af82011dd55225ce77cce3d4dfc169c"
            },
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7c7e658a36f8b1522bd3586d8137e5f93a25ddc5"
            },
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "59dab3bf0b8fc08eb802721c0532f13dd89209b8"
            },
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "bd156ce9553dcaf2d6ee2c825d1a5a1718e86524"
            },
            {
              "version": "9d0982927e79049675cb6c6c04a0ebb3dad5a434",
              "status": "affected",
              "versionType": "git",
              "lessThan": "24138933b97b055d486e8064b4a1721702442a9b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.1",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.1"
            },
            {
              "version": "4.19.316",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.262",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.198",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.134",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.56",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.4.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}