{
  "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-2024-38610",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2024-38610",
    "idYear": 2024,
    "status": "PUBLISHED",
    "publishedAt": "2024-06-19T13:56:12.083Z",
    "updatedAt": "2026-08-05T11:33:09.136Z",
    "importedAt": "2026-10-24T01:57:16.009Z",
    "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": "drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map()\n\nPatch series \"mm: follow_pte() improvements and acrn follow_pte() fixes\".\n\nPatch #1 fixes a bunch of issues I spotted in the acrn driver.  It\ncompiles, that's all I know.  I'll appreciate some review and testing from\nacrn folks.\n\nPatch #2+#3 improve follow_pte(), passing a VMA instead of the MM, adding\nmore sanity checks, and improving the documentation.  Gave it a quick test\non x86-64 using VM_PAT that ends up using follow_pte().\n\n\nThis patch (of 3):\n\nWe currently miss handling various cases, resulting in a dangerous\nfollow_pte() (previously follow_pfn()) usage.\n\n(1) We're not checking PTE write permissions.\n\nMaybe we should simply always require pte_write() like we do for\npin_user_pages_fast(FOLL_WRITE)? Hard to tell, so let's check for\nACRN_MEM_ACCESS_WRITE for now.\n\n(2) We're not rejecting refcounted pages.\n\nAs we are not using MMU notifiers, messing with refcounted pages is\ndangerous and can result in use-after-free. Let's make sure to reject them.\n\n(3) We are only looking at the first PTE of a bigger range.\n\nWe only lookup a single PTE, but memmap->len may span a larger area.\nLet's loop over all involved PTEs and make sure the PFN range is\nactually contiguous. Reject everything else: it couldn't have worked\neither way, and rather made use access PFNs we shouldn't be accessing.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "b9c43aa0b18da5619aac347d54cb67fe30d1f884",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5c6705aa47b5b78d7ad36fea832bb69caa5bf49a"
            },
            {
              "version": "8a6e85f75a83d16a71077e41f2720c691f432002",
              "status": "affected",
              "versionType": "git",
              "lessThan": "afeb0e69627695f759fc73c39c1640dbf8649b32"
            },
            {
              "version": "8a6e85f75a83d16a71077e41f2720c691f432002",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e873f36ec890bece26ecce850e969917bceebbb6"
            },
            {
              "version": "8a6e85f75a83d16a71077e41f2720c691f432002",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4c4ba3cf3a15ccfbaf787d0296fa42cdb00da9b4"
            },
            {
              "version": "8a6e85f75a83d16a71077e41f2720c691f432002",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2c8d6e24930b8ef7d4a81787627c559ae0e0d3bb"
            },
            {
              "version": "8a6e85f75a83d16a71077e41f2720c691f432002",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3d6586008f7b638f91f3332602592caa8b00b559"
            },
            {
              "version": "149d5fb7e0124c3763e92edd1fde19417f4d2d09",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "02098ac42b7ff055ec72cd083ee1eb0a23481a19",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.15.33",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.161"
            },
            {
              "version": "5.16.19",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.17"
            },
            {
              "version": "5.17.2",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.18"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.18",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "5.15.161",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.93",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.33",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.8.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.8.*"
            },
            {
              "version": "6.9.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.9.*"
            },
            {
              "version": "6.10",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}