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CVE-2026-89574 dm array: validate array block headers on read

🗓️ 11 Sep 2026 19:44:42Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 46 Views

Out-of-bounds read in Linux kernel dm-array from unvalidated on-disk nr_entries header.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/md/persistent-data/dm-array.c"
    ],
    "versions": [
      {
        "version": "6513c29f44f2cc970c0e9fecfe5a6526c3e73025",
        "lessThan": "0e3b8f371c385c212b6e6f76c66f5b3f5bcfea62",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6513c29f44f2cc970c0e9fecfe5a6526c3e73025",
        "lessThan": "67adda7ed5da3e3b64f5b9021a02c21fb374fd9c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6513c29f44f2cc970c0e9fecfe5a6526c3e73025",
        "lessThan": "b33f76d33aaeacf3baf3370d8d64985169b36600",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6513c29f44f2cc970c0e9fecfe5a6526c3e73025",
        "lessThan": "9808ddffb4bc659352df3020cd84d9d864820ee5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6513c29f44f2cc970c0e9fecfe5a6526c3e73025",
        "lessThan": "2965787723084835b18dfe993cd450ebf5bd4540",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/md/persistent-data/dm-array.c"
    ],
    "versions": [
      {
        "version": "3.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.160",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.109",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.50",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.4",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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21 Oct 2026 12:47Current
CVSS 3.17.8
EPSS0.00168
SSVC
46