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CVE-2026-31589 mm: call ->free_folio() directly in folio_unmap_invalidate()

🗓️ 24 Apr 2026 14:42:16Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 44 Views

CVE-2026-31589 fixes use-after-free by avoiding direct free_folio call in folio_unmap_invalidate.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/filemap.c",
      "mm/internal.h",
      "mm/truncate.c"
    ],
    "versions": [
      {
        "version": "fb7d3bc4149395c1ae99029c852eab6c28fc3c88",
        "lessThan": "efc52947247a21bbf79059539bbbd40f4ea76f00",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fb7d3bc4149395c1ae99029c852eab6c28fc3c88",
        "lessThan": "b667df39d98a7a24be7c2a40ff0863dac1ad2cd7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fb7d3bc4149395c1ae99029c852eab6c28fc3c88",
        "lessThan": "c330e65ea59c4805d6ab6757c4ddfe8c63acef31",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fb7d3bc4149395c1ae99029c852eab6c28fc3c88",
        "lessThan": "615d9bb2ccad42f9e21d837431e401db2e471195",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/filemap.c",
      "mm/internal.h",
      "mm/truncate.c"
    ],
    "versions": [
      {
        "version": "6.14",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.14",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.27",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.14",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.1",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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14 Jun 2026 17:42Current
CVSS 3.19.8
EPSS0.00444
44