{
  "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-2026-31597",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-31597",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-04-24T14:42:22.655Z",
    "updatedAt": "2026-08-05T12:23:41.347Z",
    "importedAt": "2026-10-24T01:58:02.025Z",
    "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": "ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY\n\nfilemap_fault() may drop the mmap_lock before returning VM_FAULT_RETRY,\nas documented in mm/filemap.c:\n\n  \"If our return value has VM_FAULT_RETRY set, it's because the mmap_lock\n  may be dropped before doing I/O or by lock_folio_maybe_drop_mmap().\"\n\nWhen this happens, a concurrent munmap() can call remove_vma() and free\nthe vm_area_struct via RCU. The saved 'vma' pointer in ocfs2_fault() then\nbecomes a dangling pointer, and the subsequent trace_ocfs2_fault() call\ndereferences it -- a use-after-free.\n\nFix this by saving ip_blkno as a plain integer before calling\nfilemap_fault(), and removing vma from the trace event. Since\nip_blkno is copied by value before the lock can be dropped, it\nremains valid regardless of what happens to the vma or inode\nafterward.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "36539c4d536f851a3b346a6ebb27b51bc3d77a94"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "35c2c05261d6f6d84aaa1355afa201d507943e76"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3f5e74b5db9353b01ed50f4de84e75b755f8fbc2"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "6f072daefcab1d84ce37c073645615f63be91006"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4cf2768a0291a0cdd0dae801ea0eafa3878a349d"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "d45ff441b416d4aa1af72b1db23d959601c04da2"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "76a602fdbb78dd05b2da06f74a988cebc97e82d0"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "925bf22c1b823e231b1baea761fe8a1512e442f2"
            },
            {
              "version": "614a9e849ca6ea24843795251cb30af525d5336b",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7de554cabf160e331e4442e2a9ad874ca9875921"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.6.39",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "2.6.39"
            },
            {
              "version": "5.10.258",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.209",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.1.175",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.6.136",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.83",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.24",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "6.19.14",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.19.*"
            },
            {
              "version": "7.0.1",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}