{
  "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-2023-53484",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53484",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-01T11:42:52.590Z",
    "updatedAt": "2026-10-15T21:41:28.750Z",
    "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": "lib: cpu_rmap: Avoid use after free on rmap->obj array entries",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nlib: cpu_rmap: Avoid use after free on rmap->obj array entries\n\nWhen calling irq_set_affinity_notifier() with NULL at the notify\nargument, it will cause freeing of the glue pointer in the\ncorresponding array entry but will leave the pointer in the array. A\nsubsequent call to free_irq_cpu_rmap() will try to free this entry again\nleading to possible use after free.\n\nFix that by setting NULL to the array entry and checking that we have\nnon-zero at the array entry when iterating over the array in\nfree_irq_cpu_rmap().\n\nThe current code does not suffer from this since there are no cases\nwhere irq_set_affinity_notifier(irq, NULL) (note the NULL passed for the\nnotify arg) is called, followed by a call to free_irq_cpu_rmap() so we\ndon't hit and issue. Subsequent patches in this series excersize this\nflow, hence the required fix.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "981f339d2905b6a92ef59358158b326493aecac5"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d1308bd0b24cb1d78fa2747d5fa3e055cc628a48"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "cc2d2b3dbfb0ba57bc027fb7e1121250c50e4000"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f748e15253833b771acbede14ea98f50831ac289"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c6ed54dd90698dc0744d669524cc1c122ded8a16"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "c9115f49cf260d24d8b5f2d9a4b63cb31a627bb4"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "67bca5f1d644f4e79b694abd8052a177de81c37f"
            },
            {
              "version": "896f97ea95c1d29c0520ee0766b66b7f64cb967c",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4e0473f1060aa49621d40a113afde24818101d37"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "3.8",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "3.8"
            },
            {
              "version": "4.14.316",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.14.*"
            },
            {
              "version": "4.19.284",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.244",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.181",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.113",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.30",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.3.4",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.3.*"
            },
            {
              "version": "6.4",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}