{
  "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-2024-26883",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26883",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-04-17T10:27:39.036Z",
    "updatedAt": "2026-10-15T00:39:05.259Z",
    "importedAt": "2026-10-24T01:57:07.518Z",
    "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": "bpf: Fix stackmap overflow check on 32-bit arches",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix stackmap overflow check on 32-bit arches\n\nThe stackmap code relies on roundup_pow_of_two() to compute the number\nof hash buckets, and contains an overflow check by checking if the\nresulting value is 0. However, on 32-bit arches, the roundup code itself\ncan overflow by doing a 32-bit left-shift of an unsigned long value,\nwhich is undefined behaviour, so it is not guaranteed to truncate\nneatly. This was triggered by syzbot on the DEVMAP_HASH type, which\ncontains the same check, copied from the hashtab code.\n\nThe commit in the fixes tag actually attempted to fix this, but the fix\ndid not account for the UB, so the fix only works on CPUs where an\noverflow does result in a neat truncation to zero, which is not\nguaranteed. Checking the value before rounding does not have this\nproblem.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "063c722dd9d285d877e6fd499e753d6224f4c046",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d0e214acc59145ce25113f617311aa79dda39cb3"
            },
            {
              "version": "7e3a6b820535eb395784060ae26c5af579528fa0",
              "status": "affected",
              "versionType": "git",
              "lessThan": "21e5fa4688e1a4d3db6b72216231b24232f75c1d"
            },
            {
              "version": "8032bf2af9ce26b3a362b9711d15f626ab946a74",
              "status": "affected",
              "versionType": "git",
              "lessThan": "15641007df0f0d35fa28742b25c2a7db9dcd6895"
            },
            {
              "version": "6183f4d3a0a2ad230511987c6c362ca43ec0055f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ca1f06e72dec41ae4f76e7b1a8a97265447b46ae"
            },
            {
              "version": "6183f4d3a0a2ad230511987c6c362ca43ec0055f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f06899582ccee09bd85d0696290e3eaca9aa042d"
            },
            {
              "version": "6183f4d3a0a2ad230511987c6c362ca43ec0055f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7070b274c7866a4c5036f8d54fcaf315c64ac33a"
            },
            {
              "version": "6183f4d3a0a2ad230511987c6c362ca43ec0055f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "43f798b9036491fb014b55dd61c4c5c3193267d0"
            },
            {
              "version": "6183f4d3a0a2ad230511987c6c362ca43ec0055f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0971126c8164abe2004b8536b49690a0d6005b0a"
            },
            {
              "version": "6183f4d3a0a2ad230511987c6c362ca43ec0055f",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7a4b21250bf79eef26543d35bd390448646c536b"
            },
            {
              "version": "253150830a012adfccf90afcebae8fda5b05a80f",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "766107351731ae223ebf60ca22bdfeb47ce6acc8",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "4.19.177",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.19.311"
            },
            {
              "version": "5.4.99",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4.273"
            },
            {
              "version": "5.10.17",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.214"
            },
            {
              "version": "4.9.258",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.10"
            },
            {
              "version": "4.14.222",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "4.15"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.11",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.11"
            },
            {
              "version": "4.19.311",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "4.19.*"
            },
            {
              "version": "5.4.273",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.214",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.153",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.83",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.23",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.7.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.7.*"
            },
            {
              "version": "6.8.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.8.*"
            },
            {
              "version": "6.9",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}