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CVE-2026-64239 mm/damon/sysfs-schemes: delete tried region in regions_rmdirs()

🗓️ 24 Jul 2026 15:27:43Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 19 Views

Fix use-after-free in DAMON sysfs schemes; remove region on refcount decrement and add after kobject init.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-64239
24 Jul 202615:27
attackerkb
CVE
CVE-2026-64239
24 Jul 202615:27
cve
Debian CVE
CVE-2026-64239
24 Jul 202615:27
debiancve
EUVD
EUVD-2026-48648
24 Jul 202615:27
euvd
NVD
CVE-2026-64239
24 Jul 202616:16
nvd
Positive Technologies
PT-2026-64354
24 Jul 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "mm/damon/sysfs-schemes.c"
    ],
    "versions": [
      {
        "version": "9277d0367ba18ef4bb98bafb1209e715844cdf7e",
        "lessThan": "c0e37017a452addec873865c94cf7a665663a9b2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9277d0367ba18ef4bb98bafb1209e715844cdf7e",
        "lessThan": "a5fa42214de55e43d165144727ce9facb9fc6b08",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9277d0367ba18ef4bb98bafb1209e715844cdf7e",
        "lessThan": "0ba6c05156d9ff9fc6ca22b7690e2eec9eca66f7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9277d0367ba18ef4bb98bafb1209e715844cdf7e",
        "lessThan": "2c33177023c92e76806c535ddbffaa3d3fc37777",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9277d0367ba18ef4bb98bafb1209e715844cdf7e",
        "lessThan": "441f92f7d386b85bad16de49db95a307cba048a2",
        "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/damon/sysfs-schemes.c"
    ],
    "versions": [
      {
        "version": "6.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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