{
  "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-2024-26712",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-26712",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-04-03T14:55:14.149Z",
    "updatedAt": "2026-08-05T11:26:49.646Z",
    "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": "powerpc/kasan: Fix addr error caused by page alignment",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/kasan: Fix addr error caused by page alignment\n\nIn kasan_init_region, when k_start is not page aligned, at the begin of\nfor loop, k_cur = k_start & PAGE_MASK is less than k_start, and then\n`va = block + k_cur - k_start` is less than block, the addr va is invalid,\nbecause the memory address space from va to block is not alloced by\nmemblock_alloc, which will not be reserved by memblock_reserve later, it\nwill be used by other places.\n\nAs a result, memory overwriting occurs.\n\nfor example:\nint __init __weak kasan_init_region(void *start, size_t size)\n{\n[...]\n\t/* if say block(dcd97000) k_start(feef7400) k_end(feeff3fe) */\n\tblock = memblock_alloc(k_end - k_start, PAGE_SIZE);\n\t[...]\n\tfor (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) {\n\t\t/* at the begin of for loop\n\t\t * block(dcd97000) va(dcd96c00) k_cur(feef7000) k_start(feef7400)\n\t\t * va(dcd96c00) is less than block(dcd97000), va is invalid\n\t\t */\n\t\tvoid *va = block + k_cur - k_start;\n\t\t[...]\n\t}\n[...]\n}\n\nTherefore, page alignment is performed on k_start before\nmemblock_alloc() to ensure the validity of the VA address.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "663c0c9496a69f80011205ba3194049bcafd681d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "230e89b5ad0a33f530a2a976b3e5e4385cb27882"
            },
            {
              "version": "663c0c9496a69f80011205ba3194049bcafd681d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2738e0aa2fb24a7ab9c878d912dc2b239738c6c6"
            },
            {
              "version": "663c0c9496a69f80011205ba3194049bcafd681d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0c09912dd8387e228afcc5e34ac5d79b1e3a1058"
            },
            {
              "version": "663c0c9496a69f80011205ba3194049bcafd681d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0516c06b19dc64807c10e01bb99b552bdf2d7dbe"
            },
            {
              "version": "663c0c9496a69f80011205ba3194049bcafd681d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "70ef2ba1f4286b2b73675aeb424b590c92d57b25"
            },
            {
              "version": "663c0c9496a69f80011205ba3194049bcafd681d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4a7aee96200ad281a5cc4cf5c7a2e2a49d2b97b0"
            },
            {
              "version": "5ce93076d8ee2a0fac3ad4adbd2e91b6197146db",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.3.6",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.4"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.4",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.4"
            },
            {
              "version": "5.10.210",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.149",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.79",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.18",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.7.6",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.7.*"
            },
            {
              "version": "6.8",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}