{
  "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-2023-53083",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53083",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-02T15:55:31.699Z",
    "updatedAt": "2026-08-05T09:12:39.153Z",
    "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": "nfsd: don't replace page in rq_pages if it's a continuation of last page",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnfsd: don't replace page in rq_pages if it's a continuation of last page\n\nThe splice read calls nfsd_splice_actor to put the pages containing file\ndata into the svc_rqst->rq_pages array. It's possible however to get a\nsplice result that only has a partial page at the end, if (e.g.) the\nfilesystem hands back a short read that doesn't cover the whole page.\n\nnfsd_splice_actor will plop the partial page into its rq_pages array and\nreturn. Then later, when nfsd_splice_actor is called again, the\nremainder of the page may end up being filled out. At this point,\nnfsd_splice_actor will put the page into the array _again_ corrupting\nthe reply. If this is done enough times, rq_next_page will overrun the\narray and corrupt the trailing fields -- the rq_respages and\nrq_next_page pointers themselves.\n\nIf we've already added the page to the array in the last pass, don't add\nit to the array a second time when dealing with a splice continuation.\nThis was originally handled properly in nfsd_splice_actor, but commit\n91e23b1c3982 (\"NFSD: Clean up nfsd_splice_actor()\") removed the check\nfor it.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bf1cbe2f3650b4f4a8add6af933c6d7f6af1f361",
              "status": "affected",
              "versionType": "git",
              "lessThan": "8235cd619db6e67f1d7d26c55f1f3e4e575c947d"
            },
            {
              "version": "56bc7e3821e847a6cc8027ddaba32e9a440225a5",
              "status": "affected",
              "versionType": "git",
              "lessThan": "12eca509234acb6b666802edf77408bb70d7bfca"
            },
            {
              "version": "91e23b1c39820bfed642119ff6b6ef9f43cf09ce",
              "status": "affected",
              "versionType": "git",
              "lessThan": "51ddb84baff6f09ad62b5999ece3ec172e4e3568"
            },
            {
              "version": "91e23b1c39820bfed642119ff6b6ef9f43cf09ce",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0101067f376eb7b9afd00279270f25d5111a091d"
            },
            {
              "version": "91e23b1c39820bfed642119ff6b6ef9f43cf09ce",
              "status": "affected",
              "versionType": "git",
              "lessThan": "27c934dd8832dd40fd34776f916dc201e18b319b"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.19"
            },
            {
              "version": "6.1.22",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2.9",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.2.*"
            },
            {
              "version": "6.3",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}